Service Manuals, User Guides, Schematic Diagrams or docs for : TOSHIBA TV 21S23D 21s23d

<< Back | Home

Most service manuals and schematics are PDF files, so You will need Adobre Acrobat Reader to view : Acrobat Download Some of the files are DjVu format. Readers and resources available here : DjVu Resources
For the compressed files, most common are zip and rar. Please, extract files with Your favorite compression software ( WinZip, WinRAR ... ) before viewing. If a document has multiple parts, You should download all, before extracting.
Good luck. Repair on Your own risk. Make sure You know what You are doing.




Image preview - the first page of the document
21s23d


>> Download 21s23d documenatation <<

Text preview - extract from the document
                                                              FILE NO: 050-200245


                          TOSHIBA


                         SERVICE MANUAL

                        COLOUR TELEVISION
                                                           21S23D




                                                                   PRINTED IN UK.   2003 C




Downloaded from www.Manualslib.com manuals search engine
                                                           SERVICING NOTICES ON CHECKING
                                1. KEEP THE NOTICES                                       6. AVOID AN X-RAY
                                   As for the places which need special attentions,        Safety is secured against an X-ray by consider-
                                   they are indicated with the labels or seals on the      ing about the cathode-ray tube and the high
                                   cabinet, chassis and parts. Make sure to keep the       voltage peripheral circuit, etc.
                                   indications and notices in the operation manual.        Therefore, when repairing the high voltage pe-
                                                                                           ripheral circuit, use the designated parts and
                                2. AVOID AN ELECTRIC SHOCK                                 make sure not modify the circuit.
                                   There is a high voltage part inside. Avoid an           Repairing except indicates causes rising of high
                                   electric shock while the electric current is            voltage, and it emits an X-ray from the cathode-
                                   flowing.                                                ray tube.
                                3. USE THE DESIGNATED PARTS                               7. PERFORM A SAFETY CHECK AFTER
                                   The parts in this equipment have the specific             SERVICING
                                   characters of incombustibility and withstand
                                                                                            Confirm that the screws, parts and wiring which
                                   voltage for safety. Therefore, the part which is
                                                                                            were removed in order to service are put in the
                                   replaced should be used the part which has
                                                                                            original positions, or whether there are the
                                   the same character.
                                                                                            portions which are deteriorated around the
                                   Especially as to the important parts for safety
                                                                                            serviced places serviced or not. Check the
                                   which is indicated in the circuit diagram or the
                                                                                            insulation between the antenna terminal or
                                   table of parts as a     mark, the designated
                                                                                            external metal and the AC cord plug blades.
                                   parts must be used.
                                                                                            And be sure the safety of that.
                                4. PUT PARTS AND WIRES IN THE                               (INSULATION CHECK PROCEDURE)
                                   ORIGINAL POSITION AFTER
                                                                                            1. Unplug the plug from the AC outlet.
                                   ASSEMBLING OR WIRING                                     2. Remove the antenna terminal on TV and turn
                                   There are parts which use the insulation                    on the TV.
                                   material such as a tube or tape for safety, or           3. Insulation resistance between the cord plug
                                   which are assembled in the condition that                   terminals and the eternal exposure metal
                                   these do not contact with the printed board.                [Note 2] should be more than 1M ohm by
                                   The inside wiring is designed not to get closer             using the 500V insulation resistance meter
                                   to the pyrogenic parts and high voltage parts.              [Note 1].
                                   Therefore, put these parts in the original               4. If the insulation resistance is less than 1M
                                   positions.                                                  ohm, the inspection repair should be
                                                                                               required.
                                5. TAKE CARE TO DEAL WITH THE
                                                                                            [Note 1]
                                   CATHODE-RAY TUBE
                                                                                              If you have not the 500V insulation
                                   In the condition that an explosion-proof cathode-
                                                                                              resistance meter, use a Tester.
                                   ray tube is set in this equipment, safety is
                                   secured against implosion. However, when                 [Note 2]
                                   removing it or serving from backward, it is                External exposure metal: Antenna terminal
                                   dangerous to give a shock. Take enough care to                                      Earphone jack
                                   deal with it.


                                                                HOW TO ORDER PARTS
                                 Please include the following informations when you order parts. (Particularly the VERSION LETTER.)
                                 1. MODEL NUMBER and VERSION LETTER
                                    The MODEL NUMBER can be found on the back of each product and the VERSION LETTER can be
                                    found at the end of the SERIAL NUMBER.
                                 2. PART NO. and DESCRIPTION
                                    You can find it in your SERVICE MANUAL.


                                                                            IMPORTANT
                                    Inferior silicon grease can damage IC's and transistors.
                                    When replacing an IC's or transistors, use only specified silicon grease (YG6260M).
                                    Remove all old silicon before applying new silicon.




                                                                                   A1-1

Downloaded from www.Manualslib.com manuals search engine
                                                                                                        CONTENTS


                            SERVICING NOTICES ON CHECKING ......................................................................................................                              A1-1
                            HOW TO ORDER PARTS ...........................................................................................................................                    A1-1
                            IMPORTANT ................................................................................................................................................        A1-1
                            CONTENTS .................................................................................................................................................        A2-1
                            GENERAL SPECIFICATIONS ....................................................................................................................                       A3-1~A3-5
                            DISASSEMBLY INSTRUCTIONS
                               1.REMOVAL OF ANODE CAP ..............................................................................................................                          B1-1
                               2.REMOVAL AND INSTALLATION OF FLAT PACKAGE IC ...............................................................                                                  B2-1, B2-2
                            SERVICE MODE LIST .................................................................................................................................               C-1
                            CONFIRMATION OF HOURS USED ..........................................................................................................                             C-1
                            WHEN REPLACING EEPROM( MEMORY) IC ...........................................................................................                                     C-2
                            ELECTRICAL ADJUSTMENTS ..................................................................................................................                         D-1~D-5
                            BLOCK DIAGRAM ......................................................................................................................................              E-1, E-2
                            PRINTED CIRCUIT BOARDS
                               MAIN/CRT ...............................................................................................................................................       F-1~F-4
                               STEREO .................................................................................................................................................       F-5, F-6
                            SCHEMATIC DIAGRAMS
                               MICON/TUNER .......................................................................................................................................            G-1, G-2
                               IF/CHROMA ............................................................................................................................................         G-3, G-4
                               21PIN ......................................................................................................................................................   G-5, G-6
                               DEFLECTION/CRT .................................................................................................................................               G-7, G-8
                               POWER ..................................................................................................................................................       G-9, G-10
                               SOUND AMP ..........................................................................................................................................           G-11, G-12
                               STEREO .................................................................................................................................................       G-13, G-14
                            WAVEFORMS .............................................................................................................................................           H-1~H-4
                            MECHANICAL EXPLODED VIEW ..............................................................................................................                           I-1
                            MECHANICAL REPLACEMENT PARTS LIST ..........................................................................................                                      J1-1
                            ELECTRICAL REPLACEMENT PARTS LIST ............................................................................................                                    J2-1~ J2-5




                                                                                                                    A2-1

Downloaded from www.Manualslib.com manuals search engine
                                                           GENERAL SPECIFICATIONS
                     G-1     TV                   CRT                    CRT Size / Visual Size           21 inch / 544.5mmV
                             System                                      CRT Type                         NORMAL
                                                                         Deflection                       90                             degree
                                                                         Magnetic Field  BV/BH            +0.45G/0.18G
                                                  Color System                                            PAL/SECAM
                                                  Speaker                                                 2 Speaker
                                                                         Position                         Front
                                                                         Size                              2.0 x4.7 Inch
                                                                         Impedance                         4                             ohm
                                                  Sound Output           MAX                                                    5.0+5.0 W
                                                                         10%(Typical)                                           4.0+4.0 W
                                                  DDR SECAM                                               Yes
                                                  NTSC3.58(AV)+NTSC4.43                                   Yes
                                                  PAL60Hz                                                 Yes
                     G-2     Tuning               Broadcasting System                                     CCIR System B/G
                             System               Tuner and             System                            1Tuner
                                                  Receive CH            Destination                       Hyper
                                                                        Tuning System                     F-Synth
                                                                        Input Impedance                   VHF/UHF 75 ohm
                                                                                                          E2 - E4, X - Z+2, S1 - S10, E5 - E12,
                                                                         CH Coverage                      S11 - S41, E21 - E69
                                                                                                          B/G
                                                  Intermediate           Picture(FP)                      38.9 MHz
                                                  Frequency              Sound(FS)                        33.4 MHz
                                                                         FP-FS                            5.5MHz
                                                  Preset CH                                               100
                                                  Stereo/Dual TV Sound                                    Yes
                                                  Tuner Sound Muting                                      Yes
                     G-3     Power                Power Source           AC                               230V AC 50Hz
                                                                         DC
                                                  Power Consumption                               at AC
                                                                                                            60 W at AC 230 V 50 Hz
                                                                         Stand by (at AC)                    3 W at AC 230 V 50 Hz
                                                                         Per Year                           --   kWh/Year
                                                  Protector              Power Fuse                       Yes
                     G-4     Regulation                                  Safety                           CE(EN60065:98)
                                                                         Radiation                        CE
                                                                         X-Radiation                      -
                     G-5     Temperature                                 Operation                        +5oC ~ +40oC
                                                                         Storage                          -20oC ~ +60oC
                     G-6     Operating Humidity                                                           Less than 80% RH




                                                                                 A3-1


Downloaded from www.Manualslib.com manuals search engine
                                                           GENERAL SPECIFICATIONS
                     G-7     On Screen           Menu                                                Yes
                             Display                           Menu Type                             Character
                                                               Picture                               Yes
                                                                           Contrast                  Yes
                                                                           Brightness                Yes
                                                                           Color                     Yes
                                                                           Tint (NTSC Only)          Yes
                                                                           Sharpness                 Yes
                                                               Audio                                 Yes
                                                                           Bass                      Yes
                                                                           Treble                    Yes
                                                                           Balance                   Yes
                                                                           BBE On/Off                                           No
                                                                           Stable Sound On/Off                                  No
                                                               CH Tuning                             Yes
                                                                           Manual                    Yes
                                                                           Auto                      Yes
                                                                           CH Allocation             Yes
                                                               Language                              Yes
                                                               Clock Set                                                        No
                                                               On Timer Set                          Yes
                                                               Off Timer Set                         Yes
                                                               Pin Code Registration                                            No
                                                               Panel Lock                            Yes
                                                               Nicam Auto Off                        Yes
                                                               AV Color System                       Yes
                                                               Sound System                                                     No
                                                               Auto 4:3 Default                                                 No
                                                               AV2 Output                            Yes
                                                                           Output Source             Yes
                                                                           Source                    Yes
                                                               Control Level                         Yes
                                                                           Volume                    Yes
                                                                           Brightness                Yes
                                                                           Contrast                  Yes
                                                                           Color                     Yes
                                                                           Tint (NTSC Only)          Yes
                                                                           Sharpness                 Yes
                                                                           Tuning                    Yes
                                                                           Bass                      Yes
                                                                           Treble                    Yes
                                                                           Balance                   Yes
                                                                           Back Light                                           No
                                                               Nicam ST                              Yes
                                                               G(A2)Stereo                           Yes
                                                               Tone 1/2 (A/B)                        Yes
                                                               Surround On/Off                                                  No
                                                               Pin Code                                                         No
                                                               AV                                    Yes
                                                               Skip                                  Yes
                                                               Channel                               Yes
                                                               Hotel Lock                                                       No
                                                               Sleep Timer                                                      No
                                                               Selectable Picture                    Yes
                                                               Wide Mode                                                        No
                                                               Sound Mute                            Yes
                     G-8     OSD Language                                                            English French Spanish
                                                                                                     German Italian
                                                                                                     Greek Turkish Swedish
                                                                                                     Dutch Portuguese
                                                                                                     Norwegian Finnish Danish
                     G-9     Clock and           Sleep Timer               Max Time                  - Min
                             Timer                                         Step                         - Min
                                                 Clock                                                                          No
                                                 On Timer                 Program( On Timer)         Yes
                                                 Off Timer                Program( Off Timer)        Yes
                                                 Wake Up Timer                                                                  No
                                                 Timer Back-up (at Power Off Mode)       more than     --    Min       Sec




                                                                                   A3-2


Downloaded from www.Manualslib.com manuals search engine
                                                           GENERAL SPECIFICATIONS
                     G-10    Remote              Unit                                                 RC-EY
                             Control             Glow in Dark Remocon                                                No
                                                 Format                                               NEC
                                                 Custom Code                                          40-BF h
                                                 Power Source                  Voltage(D.C)           3V
                                                                               UM size x pcs          UM-4 x 2 pcs
                                                 Total Keys                                             33    Keys
                                                 Keys                          Power                  Yes
                                                                               1                      Yes
                                                                               2                      Yes
                                                                               3                      Yes
                                                                               4                      Yes
                                                                               5                      Yes
                                                                               6                      Yes
                                                                               7                      Yes
                                                                               8                      Yes
                                                                               9                      Yes
                                                                               0                      Yes
                                                                               Volume Up / +          Yes
                                                                               Volume Down / -        Yes
                                                                               Previous               Yes
                                                                               Select Picture         Yes
                                                                               Menu                   Yes
                                                                               OK(Enter)              Yes
                                                                               EXIT                                  No
                                                                               Audio Select           Yes
                                                                               Sleep Timer                           No
                                                                               Mute                   Yes
                                                 T'TEXT Keys                   TEXT / MIX / TV        Yes
                                                                               CH Up / Page Up        Yes
                                                                               CH Down / Page Down    Yes
                                                                               Red                    Yes
                                                                               Green                  Yes
                                                                               Yellow                 Yes
                                                                               Cyan                   Yes
                                                                               TEXT F/T/B             Yes
                                                                               Reveal                 Yes
                                                                               TIMED PAGE(SUB PAGE)   Yes
                                                                               CALL / TEXT INDEX      Yes
                                                                               INPUT SELECT           Yes
                                                                               TEXT HOLD              Yes
                                                                               TIME / TXCL            Yes
                     G-11    Features            Auto Degauss                                         Yes
                                                 Auto Shut Off                                        Yes
                                                 Canal+                                                              No
                                                 CATV                                                                No
                                                 Anti-theft(Back Up 30 Min.)                                         No
                                                 Memory(Last CH)                                      Yes
                                                 Memory(Last Volume)                                  Yes
                                                 BBE                                                                 No
                                                 Auto Search                                          Yes
                                                 CH Allocation                                        Yes
                                                 Just Clock Function                                                 No
                                                 Game Position                                                       No
                                                 CH Label                                                            No
                                                 VM Circuit                                                          No
                                                 Full OSD                                                            No
                                                 Unitext                                                             No
                                                 Fastext                                              Yes
                                                 Top Text                                             Yes
                                                 Premiere                                                            No
                                                 Comb Filter                                                         No
                                                                                                            Lines
                                                 Auto CH Memory                                       Yes
                                                 Stable Sound                                                        No
                                                 Auto Set Up                                                         No
                                                 FBT Leak Test Protect                                Yes
                                                 Previous (Quick View)                                Yes
                                                 Panel Lock                                           Yes
                                                 Power On Memory                                      Yes
                                                 Double Focus & Dynamic Focus                                        No
                                                 Wss Signal Wide Change                                              No
                                                 Virtual Dolby Surround                                              No
                                                 Hotel Lock                                                          No




                                                                                       A3-3


Downloaded from www.Manualslib.com manuals search engine
                                                           GENERAL SPECIFICATIONS
                     G-12    Accessories         Owner's Manual          Language                             Germany Italian Dutch Greek Turkish
                                                                         w/Guarantee Card                                                No
                                                 Remote Control Unit                                          Yes
                                                 Rod Antenna                                                                             No
                                                                         Poles                                 Pole
                                                                         Terminal                              type
                                                 Loop Antenna                                                                            No
                                                                         Terminal                              -
                                                 U/V Mixer                                                                               No
                                                 DC Car Cord (Center+)                                                                   No
                                                 Guarantee Card                                                                          No
                                                 Warning Sheet                                                                           No
                                                 Circuit Diagram                                                                         No
                                                 Antenna Change Plug                                                                     No
                                                 Service Facility List                                                                   No
                                                 Important Safeguard                                          Yes (Owner's Manual In)
                                                 Dew/AHC Caution Sheet                                                                   No
                                                 AC Plug Adapter                                                                         No
                                                 Quick Set-up Sheet                                           Yes
                                                 Battery                                                      Yes
                                                                         UM size x pcs                        UM-4 x 2 pcs
                                                                         OEM Brand                                                       No
                                                 AC Cord                                                                                 No
                                                 AV Cord (2Pin-1Pin)                                                                     No
                                                 Registration Card                                                                       No
                                                 PTB Sheet                                                                               No
                                                 300 ohm to 75 ohm Antenna Adapter                                                       No
                     G-13    Interface           Switch        Front     Power (Tact Sw)                                                 No
                                                                         System Select                                                   No
                                                                         Main Power SW                        Yes
                                                                         Sub Power                                                       No
                                                                         Channel Up                           Yes
                                                                         Channel Down                         Yes
                                                                         Volume Up                            Yes
                                                                         Volume Down                          Yes
                                                               Rear      AC/DC                                                           No
                                                                         TV/CATV Selector                                                No
                                                                         Degauss                                                         No
                                                                         Main Power SW                                                   No
                                                 Indicator               Power                                                           No
                                                                         Stand-by                                                        No
                                                                         Stand-by/ON                          Yes(Red)
                                                                         On Timer                             Yes(Green)
                                                 Terminals     Front     Video Input                          RCA
                                                                         Audio Input                          RCA x2
                                                                         Other Terminal                       Head Phone (Stereo)
                                                               Rear      Video Input(Rear1)                                              No
                                                                         Video Input(Rear2)                                              No
                                                                         Audio Input(Rear1)                                              No
                                                                         Audio Input(Rear2)                                              No
                                                                         Video Output                                                    No
                                                                         Audio Output                                                    No
                                                                         Euro Scart(21Pin)                    Yes ( x1 )
                                                                            S-INPUT                           Yes ( x1 )
                                                                         Euro Scart(21Pin)                    Yes ( x1 )
                                                                            RGB-INPUT                         Yes ( x1 )
                                                                         Component Input                                                 No
                                                                         Diversity                                                       No
                                                                         Ext Speaker                                                     No
                                                                         DC Jack 12V(Center +)                                           No
                                                                         VHF/UHF Antenna Input                D Type
                                                                         AC Outlet                                                       No
                     G-14    Set Size                                              Approx.   W x D x H (mm)     590 x 492 x 446.5
                     G-15    Weight                                      Net (Approx.)                         21.0 kg                   ( --- lbs)
                                                                         Gross (Approx.)                       23.8kg                    ( ---lbs)




                                                                                    A3-4


Downloaded from www.Manualslib.com manuals search engine
                                                           GENERAL SPECIFICATIONS
                     G-16    Carton                          Master Carton                                                              No
                                                                         Content                         ----                           Sets
                                                                         Material                                               --      /--
                                                                         Dimensions      W x D x H(mm)     -- x -- x --
                                                                         Description of Origin           ---
                                                             Gift Box                                    Yes
                                                                         Material                        Double/Brown
                                                                         Dimensions      W x D x H(mm)    658 x 575 x 529
                                                                         Design                          As per Buyer's
                                                                         Description of Origin                                          No
                                                             Drop Test                                    Natural Dropping At 1 Corner / 3 Edges / 6
                                                                                                                          Surfaces
                                                                         Height (cm)                     46
                                                             Container Stuffing                          288                            Sets/40'
                                                                                                                                        container
                     G-17    Cabinet Material                            Cabinet Front                   PS 94HB
                                                                         Cabinet Rear                    PS 94HB
                                                                         Holder                          PS 94V0 NON-HALOGEN




                                                                                  A3-5


Downloaded from www.Manualslib.com manuals search engine
                                                          DISASSEMBLY INSTRUCTIONS
                 1. REMOVAL OF ANODE CAP                                                 3. After one side is removed, pull in the opposite direction to
                                                                                            remove the other.
                 Read the following NOTED items before starting work.
                                                                                         NOTE
                 * After turning the power off there might still be a potential
                   voltage that is very dangerous. When removing the                       Take care not to damage the Rubber Cap.
                   Anode Cap, make sure to discharge the Anode Cap's                     INSTALLATION
                   potential voltage.
                                                                                         1. Clean the spot where the cap was located with a small
                 * Do not use pliers to loosen or tighten the Anode Cap
                                                                                            amount of alcohol. (Refer to Fig. 1-3.)
                   terminal, this may cause the spring to be damaged.
                 REMOVAL
                 1. Follow the steps as follows to discharge the Anode Cap.                                        Location of Anode Cap
                    (Refer to Fig. 1-1.)
                    Connect one end of an Alligator Clip to the metal part of a
                    flat-blade screwdriver and the other end to ground.
                    While holding the plastic part of the insulated Screwdriver,
                    touch the support of the Anode with the tip of the
                    Screwdriver.
                    A cracking noise will be heard as the voltage is discharged.



                                                   GND on the CRT
                                                                                                                                              Fig. 1-3

                                                                                         NOTE
                                                                                           Confirm that there is no dirt, dust, etc. at the spot where
                                                                                           the cap was located.
                                                                                         2. Arrange the wire of the Anode Cap and make sure the
                                                                                            wire is not twisted.
                                                                                         3. Turn over the Rubber Cap. (Refer to Fig. 1-4.)




                           Screwdriver                        CRT
                                                    Support
                                         Alligator Clip

                             GND on the CRT
                                                                       Fig. 1-1

                 2. Flip up the sides of the Rubber Cap in the direction of the                                                               Fig. 1-4
                    arrow and remove one side of the support.
                    (Refer to Fig. 1-2.)                                                 4. Insert one end of the Anode Support into the anode button,
                                                                                            then the other as shown in Fig. 1-5.
                          Rubber Cap




                                   CRT
                                             Support                                                              Support
                                                                      Fig. 1-2
                                                                                                            CRT
                                                                                                                                              Fig. 1-5

                                                                                         5. Confirm that the Support is securely connected.
                                                                                         6. Put on the Rubber Cap without moving any parts.


                                                                                  B1-1

Downloaded from www.Manualslib.com manuals search engine
                                                       DISASSEMBLY INSTRUCTIONS
                 2. REMOVAL AND INSTALLATION OF                                          3. When IC starts moving back and forth easily after
                                                                                            desoldering completely, pickup the corner of the IC using
                    FLAT PACKAGE IC                                                         a tweezers and remove the IC by moving with the IC
                                                                                            desoldering machine. (Refer to Fig. 2-3.)
                 REMOVAL
                                                                                           NOTE
                 1. Put the Masking Tape (cotton tape) around the Flat
                                                                                              Some ICs on the PCB are affixed with glue, so be
                    Package IC to protect other parts from any damage.                        careful not to break or damage the foil of each IC
                    (Refer to Fig. 2-1.)                                                      leads or solder lands under the IC when removing it.
                   NOTE
                      Masking is carried out on all the parts located within                                                                Blower type IC
                      10 mm distance from IC leads.                                                                                         desoldering
                                                                                                                                            machine


                        Masking Tape                          IC
                        (Cotton Tape)




                                                                                           Tweezers




                                                                       Fig. 2-1
                                                                                                          IC
                                                                                                                                                       Fig. 2-3
                 2. Heat the IC leads using a blower type IC desoldering
                    machine. (Refer to Fig. 2-2.)
                                                                                         4. Peel off the Masking Tape.
                   NOTE
                      Do not add the rotating and the back and forth                     5. Absorb the solder left on the pattern using the Braided
                      directions force on the IC, until IC can move back and                Shield Wire. (Refer to Fig. 2-4.)
                      forth easily after desoldering the IC leads completely.              NOTE
                                                                                              Do not move the Braided Shield Wire in the vertical
                                                                                              direction towards the IC pattern.
                                                           Blower type IC
                                                           desoldering machine




                                                                                               Braided Shield Wire


                                                                                                                                      Soldering Iron




                              IC
                                                                                                                         IC pattern                    Fig. 2-4
                                                                       Fig. 2-2




                                                                                  B2-1

Downloaded from www.Manualslib.com manuals search engine
                                                                     DISASSEMBLY INSTRUCTIONS
                INSTALLATION                                                                              4. When bridge-soldering between terminals and/or the
                                                                                                             soldering amount are not enough, resolder using a Thin-
                1. Take care of the polarity of new IC and then install the                                  tip Soldering Iron. (Refer to Fig. 2-8.)
                   new IC fitting on the printed circuit pattern. Then solder
                   each lead on the diagonal positions of IC temporarily.
                   (Refer to Fig. 2-5.)
                                                                                                                 Thin-tip Soldering Iron                 IC




                                              Soldering Iron




                                                                                                                                                               Fig. 2-8

                                                                                                          5. Finally, confirm the soldering status on four sides of the
                              Solder temporarily                              Solder temporarily
                                                                                                             IC using a magnifying glass.
                                                                                                             Confirm that no abnormality is found on the soldering
                                                                                        Fig. 2-5             position and installation position of the parts around the
                                                                                                             IC. If some abnormality is found, correct by resoldering.
                2. Supply the solder from the upper position of IC leads                                    NOTE
                   sliding to the lower position of the IC leads.
                                                                                                               When the IC leads are bent during soldering and/or
                    (Refer to Fig. 2-6.)
                                                                                                               repairing, do not repair the bending of leads. If the
                                                                                                               bending of leads are repaired, the pattern may be
                                                                                                               damaged. So, be always sure to replace the IC in this
                                                                                                               case.



                     Solder                                          Soldering Iron




                       IC                          Supply soldering
                                                   from upper position
                                                   to lower position




                                                                                       Fig. 2-6

                3. Absorb the solder left on the lead using the Braided
                   Shield Wire. (Refer to Fig. 2-7.)
                   NOTE
                      Do not absorb the solder to excess.


                                               Soldering Iron
                                                                               IC




                        Braided Shield Wire



                                                                                       Fig. 2-7




                                                                                                   B2-2

Downloaded from www.Manualslib.com manuals search engine
                                                               SERVICE MODE LIST
                 This unit provided with the following SERVICE MODES so you can repair, examine and adjust easily.
                 To enter the Service Mode, press both set key and remote control key for more than 2 seconds.

                     Set Key       Remocon Key                                               Operations

                                                      Reset the user setting items (PICTURE, VOLUME, LANGUAGE and NICAM AUTO/
                  VOL. (-) MIN            0
                                                      OFF) to the initial state for delivery.

                                                      Initialization of the factory.
                                                      NOTE: Do not use this for the normal servicing.
                  VOL. (-) MIN            1
                                                                If you set a factory initialization, the memories are reset such as the channel
                                                                setting, and the POWER ON total hours.

                                                      POWER ON total hours is displayed on the screen.
                                                      Refer to the "CONFIRMATION OF HOURS USED".
                  VOL. (-) MIN            6
                                                      Can be checked of the INITIAL DATA of MEMORY IC.
                                                      Refer to the "WHEN REPLACING EEPROM (MEMORY) IC".

                                                      Writing of EEPROM initial data.
                  VOL. (-) MIN            8
                                                      NOTE: Do not use this for the normal servicing.

                                                      Display of the Adjustment MENU on the screen.
                  VOL. (-) MIN            9
                                                      Refer to the "ELECTRICAL ADJUSTMENT" (On-Screen Display Adjustment).




                                                    CONFIRMATION OF HOURS USED
                 POWER ON total hours can be checked on the screen. Total hours are displayed in 16 system of notation.
                 NOTE: If you set a factory initialization, the total hours is reset to "0".
                 1. Set the VOLUME to minimum.                                          ADDRESS   DATA

                 2. Press both VOL. DOWN button on the set and Channel
                    button (6) on the remote control for more than 2 seconds.
                 3. After the confirmation of using hours, turn off the power.         INIT 01 00          Initial setting content of MEMORY IC.
                                                                                       CRT ON 0010         POWER ON total hours.
                                                                                                             = (16 x 16 x 16 x thousands digit value)
                                                                                                             + (16 x 16 x hundreds digit value)
                                                                                                             + (16 x tens digit value)
                                                                                          FIG. 1             + (ones digit value)




                                                                                 C-1

Downloaded from www.Manualslib.com manuals search engine
                                              WHEN REPLACING EEPROM (MEMORY) IC
                 If a service repair is undertaken where it has been required to change the MEMORY IC, the following steps should be taken to
                 ensure correct data settings while making reference to TABLE 1.

                                  INI   +0    +1   +2      +3    +4    +5    +6      +7      +8    +9    +A    +B    +C    +D    +E    +F
                                  00    ---   00   38      23    18    71    80      48      00    47    33    05    03    00    06    73

                                  10    10    00   80      80    80    3C    00      BA      06    9F    33    80    00    02    1A    25

                                  20    53    26   2D      6D    C0    00    44      20      0A    00    18    1E    00    DE    CA    05

                                  30    00    95   A7      7F    07    00    40      00      00    00    00    00    00    00    00    00

                                  40    0F    23   27      2B    2F    33    37      3B      3F    40    41    42    43    44    45    46

                                  50    47    48   49      4A    4B    4C    4D      4E      4F    50    51    51    52    52    53    53

                                  60    54    54   55      55    56    56    57      57      58    58    59    59    5A    5A    5B    5B

                                  70    5C    5C   5D      5D    5E    5E    5F      5F      60    60    61    61    62    63    64    65

                                  80    22    25   CD      CF    D3    D8    94      97      99    52    54    56    57    59    5B    5D

                                  90    5E    5F   ---     ---   ---   ---   ---     ---     ---   ---   ---   ---   ---   ---   ---   ---

                                                                                   Table 1
                1. Enter DATA SET mode by setting VOLUME to minimum.
                2. Press both VOL. DOWN button on the set and Channel button (6) on the remote control for more than 2 seconds.
                   ADDRESS and DATA should appear as FIG 1.

                                                                              ADDRESS       DATA




                                                                             INIT 01 00
                                                                             CRT ON 0010



                                                                                   Fig. 1
                 3. ADDRESS is now selected and should "blink". Using the VOL. +/- button on the remote, step through the ADDRESS until
                    required ADDRESS to be changed is reached.
                 4. Press OK to select DATA. When DATA is selected, it will "blink".
                 5. Again, step through the DATA using VOL. +/- button until required DATA value has been selected.
                 6. Pressing OK will take you back to ADDRESS for further selection if necessary.
                 7. Repeat steps 3 to 6 until all data has been checked.
                 8. When satisfied correct DATA has been entered, turn POWER off (return to STANDBY MODE) to finish DATA input.

                     After the data input, set to the initializing of shipping.
                 9. Turn POWER on.
                 10. Press both VOL. DOWN button on the set and Channel button (1) on 



◦ Jabse Service Manual Search 2020 ◦ Jabse Pravopis ◦ Other service manual resources online : FixyaeServiceinfo