Service Manuals, User Guides, Schematic Diagrams or docs for : TOSHIBA TV 15v11f

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15v11f


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                  FILE NO: 050-200241


TOSHIBA


SERVICE MANUAL

COLOUR TELEVISION
                 15V11F




                       PRINTED IN UK.   2003 C
                       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
                                                                          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
SCHEMATIC DIAGRAMS
   MICON/TUNER .......................................................................................................................................        G-1, G-2
   CHROMA/IF ............................................................................................................................................     G-3, G-4
   21PIN/AV SW .........................................................................................................................................      G-5, G-6
   DEFLECTION/CRT .................................................................................................................................           G-7, G-8
   POWER ..................................................................................................................................................   G-9, G-10
   SOUND AMP ..........................................................................................................................................       G-11, G-12
WAVEFORMS .............................................................................................................................................       H-1~H-3
MECHANICAL EXPLODED VIEW ..............................................................................................................                       I-1
MECHANICAL REPLACEMENT PARTS LIST ..........................................................................................                                  J1-1
ELECTRICAL REPLACEMENT PARTS LIST ............................................................................................                                J2-1~ J2-5




                                                                                      A2-1
                              GENERAL SPECIFICATIONS
G-1   TV                   CRT                    CRT Size / Visual Size           15 inch / 357mmV
      System                                      CRT Type                         Flat
                                                  Deflection                       90            degree
                                                  Magnetic Field  BV/BH            +0.45G/0.18G
                           Color System                                            PAL/SECAM
                           Speaker                                                 1 Speaker
                                                  Position                         Front
                                                  Size                              1.5 x2.5 Inch
                                                  Impedance                         8             ohm
                           Sound Output           MAX                                          3 W
                                                  10%(Typical)                               2.5 W
                           DDR SECAM                                               Yes
                           NTSC3.58(AV)+NTSC4.43                                   Yes
                           PAL60Hz                                                 Yes
G-2   Tuning               Broadcasting System                                     CCIR System B/G D/K L
      System               Tuner and             System                            1Tuner
                           Receive CH            Destination                       Ohers
                                                 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
                           Intermediate                                            PAL/SECAM(U&VH)/SECAM(VL)
                           Frequency              Picture(FP)                      38.9/38.9/34.4MHz
                                                  Sound(FS)                        33.4/32.4/40.9MHz
                                                  FP-FS                            5.5/6.5/6.5MHZ
                                                                                   PAL DK,SECAM DK
                                                  Picture(FP)                      38.9 , 38.9 MHz
                                                  Sound(FS)                        32.4 , 32.4 MHz
                                                  FP-FS                            6.5 , 6.5MHz
                           Preset CH                                               100
                           Stereo/Dual TV Sound                                                  No
                           Tuner Sound Muting                                      Yes
G-3   Power                Power Source           AC                               230V-240V AC 50Hz
                                                  DC
                           Power Consumption                               at AC
                                                                                     46 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 then 80% RH




                                                    A3-1
                    GENERAL SPECIFICATIONS
G-7   On Screen   Menu                                     Yes
      Display            Menu Type                         Character
                         Picture                           Yes
                                     Contrast              Yes
                                     Brightness            Yes
                                     Colour                Yes
                                     Tint (NTSC Only)      Yes
                                     Sharpness             Yes
                         Audio                                         No
                                     Bass                              No
                                     Treble                            No
                                     Balance                           No
                                     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/OffTimer Set                   Yes
                         On Timer Set                                  No
                         Pin Code Registration                         No
                         Panel Lock                        Yes
                         Nicam Auto Off                                No
                         AV Colour 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
                                     Colour                Yes
                                     Tint (NTSC Only)      Yes
                                     Sharpness             Yes
                                     Tuning                Yes
                                     Bass                              No
                                     Treble                            No
                                     Balance                           No
                                     Back Light                        No
                         Nicam ST                                      No
                         Tone 1/2 (A/B)                                No
                         Surround On/Off                               No
                         Pin Code                                      No
                         AV                                Yes
                         Skip                                          No
                         Channel                           Yes
                         Hotel Lock                                    No
                         Sleep Timer                                   No
                         Selectable Picture                Yes
                         Wide Mode                                     No
                         Sound Mute                        Yes




                                       A3-2
                         GENERAL SPECIFICATIONS
G-8    OSD Language                                                       English French Spanish
                                                                          Germany Italian
                                                                          Polski Sweden
                                                                          Netherland Portgal
                                                                          Denmark
                                                                          Czech Slovak Hungarian
                                                                          Russian
G-9    Clock and      Sleep Timer              Max Time                   - Min
       Timer                                   Step                          - Min
                      Clock                                                           No
                      On Timer                 Program( On Tim)           Yes
                      Off Timer                Program( 0ff Tim)          Yes
                      Wake Up Timer                                                   No
                      Timer Back-up (at Power Off Mode)       more than      --    Min         Sec
G-10   Remote         Unit                                                RC-EY       (CT-833)
       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                                             32   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                           No
                                               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




                                                 A3-3
                         GENERAL SPECIFICATIONS
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                                                 No
                     Stable Sound                                                   No
                     Auto Set Up                                                    No
                     FBT Leak Test Protect                            Yes
                     Power ON Memory                                  Yes
                     Previous (Quick View)                            Yes
                     Panel Lock                                       Yes
                     Double Focus & Dynamic Focus                                 No
                     Wss Signal Wide Change                                       No
                     Virtual Dolby Surround                                       No
                     Hotel Lock                                                   No
G-12   Accessories   Owner's Manual           Language                French,Germany,Polish,
                                                                      Hungarian,Czech
                                                   w/Guarantee Card               No
                     Remote Control Unit                              Yes
                     Rod Antenna                                      Yes
                                                   Poles               2Pole
                                                   Terminal            D-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



                                                     A3-4
                              GENERAL SPECIFICATIONS
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                     Yes
                                                  Audio Input                     Yes
                                                  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)         366 x 396.5 x 373
G-15   Weight                                     Net (Approx.)                     11 .0 kg    ( --- lbs)
                                                  Gross (Approx.)                   13.0kg      ( ---lbs)
G-16   Carton                         Master Carton                                             No
                                                  Content                         ----          Sets
                                                  Material                              --      /--
                                                  Dimensions      W x D x H(mm)     -- x -- x --
                                                  Description of Origin           Yes
                                      Gift Box                                    Yes
                                                  Material                        Double/Brown
                                                  Dimensions      W x D x H(mm)    445 x 470 x 460
                                                  Design                          As per Buyer's
                                                  Description of Origin           Yes
                                                                                      Natural Dropping At 1 Corner / 3
                                      Drop Test
                                                                                            Edges / 6 Surfaces
                                                  Height (cm)                     62
                                      Container Stuffing                          640           Sets/40' container
G-17   Cabinet Material                           Cabinet Front                   PS 94HB
                                                  Cabinet Rear                    PS 94V0 NON-HALOGEN
                                                  Holder                          PS 94V0 NO




                                                    A3-5
                                         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
                                      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
                                                     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
                                              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".

 VOL. (-) MIN            7           Releasing of PROTECTION PASSWORD.

                                     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
                            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    17    71    80      48      00    03    73    0F    02    00    06    74

                10    10    00   80    80    80    3C    80      9E      07    9F    1B    80    00    00    27    22

                20    51    1B   1A    63    C0    00    47      20      0F    00    18    1E    00    20    D9    0F

                30    00    9D   93    7F    07    00    08      00      00    00    00    00    00    00    00    00

                40    7F    75   6B    66    63    60    5D      5A      57    54    51    4E    4B    48    45    42

                50    3F    3D   3B    39    37    35    33      31      2F    2D    2B    29    27    25    23    22

                60    1F    1E   1D    1C    1B    1A    19      18      17    16    15    14    13    12    11    10

                70    0F    0E   0D    0C    0B    0A    09      08      07    06    05    04    03    03    02    02

                80    22    23   CD    CF    D2    D6    D9      96      98    9C    9D    55    56    58    5A    5C

                90    5D    5E   ---   ---   ---   ---   ---     ---     ---   ---   ---   ---   ---   ---   ---   ---

                                                               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.
The unit will now have the correct DATA for the new MEMORY IC.




                                                                C-2
                                                 ELECTRICAL ADJUSTMENTS
1. ADJUSTMENT PROCEDURE                                                    2. BASIC ADJUSTMENTS
Read and perform these adjustments when repairing the                      2-1: CONSTANT VOLTAGE
circuits or replacing electrical parts or PCB assemblies.                       Place the set with Aging Test for more than 5 minutes.
                                                                           1.
CAUTION                                                                    2.   Connect the digital voltmeter to TP501.
                                                                           3.   Set condition is AV MODE without signal.



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