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Disney DT1900-C


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DT1900-C

SERVICE MANUAL
     COLOR TELEVISION RECEIVER




                    ORIGINAL
                  MFR'S VERSION A




       Design and specifications are subject to change without notice.
                     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-
2. AVOID AN ELECTRIC SHOCK                                ripheral circuit, use the designated parts and
  There is a high voltage part inside. Avoid an           make sure not modify the circuit.
  electric shock while the electric current is            Repairing except indicates causes rising of high
  flowing.                                                voltage, and it emits an X-ray from the cathode-
                                                          ray tube.
3. USE THE DESIGNATED PARTS
  The parts in this equipment have the specific        7. PERFORM A SAFETY CHECK AFTER
  characters of incombustibility and withstand            SERVICING
  voltage for safety. Therefore, the part which is
  replaced should be used the part which has              Confirm that the screws, parts and wiring which
  the same character.                                     were removed in order to service are put in the
  Especially as to the important parts for safety         original positions, or whether there are the
  which is indicated in the circuit diagram or the        portions which are deteriorated around the
  table of parts as a     mark, the designated            serviced places serviced or not. Check the
  parts must be used.                                     insulation between the antenna terminal or
                                                          external metal and the AC cord plug blades.
                                                          And be sure the safety of that.
4. PUT PARTS AND WIRES IN THE
   ORIGINAL POSITION AFTER                                (INSULATION CHECK PROCEDURE)
   ASSEMBLING OR WIRING                                   1. Unplug the plug from the AC outlet.
  There are parts which use the insulation                2. Remove the antenna terminal on TV and turn
  material such as a tube or tape for safety, or             on the TV.
  which are assembled in the condition that               3. Insulation resistance between the cord plug
  these do not contact with the printed board.               terminals and the eternal exposure metal
  The inside wiring is designed not to get closer            [Note 2] should be more than 1M ohm by
  to the pyrogenic parts and high voltage parts.             using the 500V insulation resistance meter
  Therefore, put these parts in the original                 [Note 1].
  positions.                                              4. If the insulation resistance is less than 1M
                                                             ohm, the inspection repair should be
5. TAKE CARE TO DEAL WITH THE                                required.
   CATHODE-RAY TUBE                                       [Note 1]
  In the condition that an explosion-proof cathode-         If you have not the 500V insulation
  ray tube is set in this equipment, safety is              resistance meter, use a Tester.
  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~A3-4
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-1
ELECTRICAL ADJUSTMENTS ....................................................................................................................... D-1~D-5
BLOCK DIAGRAM ........................................................................................................................................... E-1, E-2
PRINTED CIRCUIT BOARDS
   MAIN/CRT/OPERATION/FRONT JACK ...................................................................................................... F-1~F-4
SCHEMATIC DIAGRAMS
   MICON/TUNER ............................................................................................................................................ G-1, G-2
   CHROMA ..................................................................................................................................................... G-3, G-4
   TV POWER .................................................................................................................................................. G-5, G-6
   DEFLECTION/CRT ...................................................................................................................................... G-7, G-8
   SOUND/AV .................................................................................................................................................. G-9, G-10
WAVEFORMS .................................................................................................................................................. H-1, H-2
MECHANICAL EXPLODED VIEW ................................................................................................................... I-1
MECHANICAL REPLACEMENT PARTS LIST ............................................................................................... J1-1
ELECTRICAL REPLACEMENT PARTS LIST ................................................................................................. J2-1, J2-2




                                                                                  A2-1
                                 GENERAL SPECIFICATIONS
G-1   TV             CRT                            CRT Size / Visual Size             19 inch / 480mmV
      System                                        CRT Type                           Normal
                                                    Deflection                         90           degree
                                                    Magnetic Field  BV/BH              +0.45G/0.18G
                     Color System                                                      NTSC
                     Speaker                                                           2Speaker
                                                    Position                           Ext
                                                    Size                                3 Inch
                                                    Impedance                           8             ohm
                     Sound Output                   MAX                                   0.5+0.5 W
                                                    10%(Typical)                             --     W
                     NTSC3.58+4.43 /PAL60Hz                                                         No
G-2   T u n in g     Broadcasting System                                               US System M
      System         Tuner and                      System                             1Tuner
                     Receive CH                     Destination                        USA(W/ CATV)
                                                    Tuning System                      F-Synth
                                                    Input Impedance                    VHF/UHF 75 ohm
                                                                                                 2 - 69, 4A, A-5 - A-1,
                                                    CH Coverage                                A - I, J - W, W+1 - W+84
                     Intermediate                   Picture(FP)                        45.75MHz
                     Frequency                      Sound(FS)                          41.25MHz
                                                    FP-FS                              4.50MHz
                     Preset CH                                                                      No
                     StereoTV Sound (Ext Audio Input Only)                             Yes
                     Tuner Sound Muting                                                Yes
G-3   Power          Power Source                 AC                                   120V AC 60Hz
                                                  DC
                     Power Consumption                                         at AC
                                                                                        73 W at AC 120 V 60 Hz
                                                    Stand by (at AC)                     5 W at AC 120 V 60 Hz
                                                    Per Year                            --    kWh/Year
                     Protector                      Power Fuse                         Yes
                                                    Safety Circuit                     Yes
                                                    IC Protector(Micro Fuse)                     No
G-4   Regulation                                    Safety                             UL / CSA
                                                    Radiation                          FCC / IC
                                                    X-Radiation                        DHHS / HWC
G-5   Temperature                                   Operation                          +5oC ~ +40oC
                                                    Storage                            -20oC ~ +60oC
G-6   Operating Humidity                                                               Less than 80% RH
G-7   On Screen       Menu                                                             Yes
      Display                       Menu Type                                          Disney Charecter
                                    Picture                                            Yes
                                                    Contrast                           Yes
                                                    Brightness                         Yes
                                                    Color                              Yes
                                                    Tint                               Yes
                                                    Sharpness                          Yes
                                                    Reset                              Yes
                                    Audio                                                         No
                                                    Bass                                          No
                                                    Treble                                        No
                                                    Balance                                       No
                                                    BBE On/Off                                    No
                                                    Stable Sound On/Off                           No
                                    CH Set Up                                          Yes
                                                    TV/CATV                            Yes
                                                    Auto CH Memory                     Yes
                                                    Add/ Delete                        Yes
                                    Language                                           Yes
                                    V-chip                                             Yes
                                                    CH Label                                      No
                                                    Favorite CH                                   No
                                                    Color Stream DVD/DTV                          No
                                    CAPTION                                            Yes
                                    Control Level                                      Yes
                                                    Sound                              Yes
                                                    Brightness                         Yes
                                                    Contrast                           Yes
                     -                              Color                              Yes
                                                    Tint                               Yes
                                                    Sharpness                          Yes
                                                    Tuning                                        No
                                                    Bass                                          No
                                                    Treble                                        No
                                                    Balance                                       No
                                                    Back Light                                    No

                                                         A3-1
                              GENERAL SPECIFICATIONS
                                    Stereo,Audio Output,SAP                                  No
                                    Video                                         Yes
                                    Color Stream                                             No
                                    Channel(TV/Cable)                             Yes
                                    CH Label                                                 No
                                    Sleep Timer                                   Yes
                                    Sound Mute                                    Yes
                                    V-chip Rating                                 Yes
G-8    OSD Language                                                               English   French   Spanish

G-9    Clock and      Sleep Timer                 Max Time                        120 Min
       Timer                                      Step                              10 Min
                      On/Off Timer                Program(On Timer / Off Timer)               No
                      Wake Up Timer                                                           No
                      Timer Back-up (at Power Off Mode)        more than            --      Min       Sec
G-10   Remote         Unit                                                        RC-JK
       Control        Glow in Dark Remocon                                                   No
                      Format                                                      NEC
                      Custom Code                                                 86-05 h
                      Power Source                 Voltage(D.C)                   3V
                                                   UM size x pcs                  UM-4 x 2 pcs
                      Total Keys                                                    23    Keys
                      Keys                         Power                          Yes
                                                   1                              Yes
                                                   2                              Yes
                                                   3                              Yes
                                                   4                              Yes
                                                   5                              Yes
                                                   6                              Yes
                                                   7                              Yes
                                                   8                              Yes
                                                   9                              Yes
                                                   0                              Yes
                                                   100                                       No
                                                   CH Up                          Yes
                                                   CH Down                        Yes
                                                   Volume Up                      Yes
                                                   Volume Down                    Yes
                                                   TV/Caption/Text                Yes
                                                   CH1/CH2                        Yes
                                                   TV/Video(TV/AV)                Yes
                                                   CH RTN/CH ENT(Quick View)      Yes
                                                   Sleep                          Yes
                                                   RE Call(Call)                  Yes
                                                   Reset                                     No
                                                   Menu                           Yes
                                                   Enter                                     No
                                                   Mute                           Yes
                                                   Exit                                      No
                                                   MTS(Audio Select)                         No
                                                   Set +                                     No
                                                   Set -                                     No
                      Multi Brand Keys             CH Up(VCR)                                No
                                                   CH Down(VCR)                              No
                                                   Pause/Still                               No
                                                   TV/VCR(VCR)                               No
                                                   Code                                      No
                                                   FF                                        No
                                                   Rew                                       No
                                                   Rec                                       No
                                                   Play                                      No
                                                   Stop                                      No
                                                   TV                                        No
                                                   VCR                                       No
                                                   Cable                                     No
G-11   Features       Auto Degauss                                                Yes
                      Auto Shut Off                                               Yes
                      Canal+                                                                 No
                      CATV                                                        Yes
                      Anti-theft                                                             No
                      Rental                                                                 No
                      Memory(Last CH)                                             Yes
                      Memory(Last Volume)                                         Yes
                      V-Chip                                                      Yes
                                                   Type                            USA,ORION Type
                      BBE                                                                    No
                      Auto Search                                                            No

                                                       A3-2
                              GENERAL SPECIFICATIONS
                     CH Allocation                                                  No
                     StereoTV Sound (Ext Audio Input Only)            Yes
                     Channel Lock                                                   No
                     Just Clock Function                                            No
                     Game Position                                                  No
                     CH Label                                                       No
                     VM Circuit                                                     No
                     Full OSD                                                       No
                     Premiere                                                       No
                     Comb Filter                                                    No
                                                                            Lines
                     Auto CH Memory                                   Yes
                     Hotel Lock                                                     No
                     Closed Caption                                   Yes
                     Stable Sound                                                   No
                     Energy Star                                                    No
                     Power On Memory                                  Yes
                     Favorite CH                                                No
G-12   Accessories   Owner's Manual                Language           English Spanish French
                                                   w/Guarantee Card             No
                     Remote Control Unit                              Yes
                     Rod Antenna                                                No
                                                   Poles
                                                   Terminal
                     Loop Antenna                                                   No
                                                   Terminal            -
                     U/V Mixer                                                      No
                     DC Car Cord (Center+)                                          No
                     Guarantee Card                                   Yes
                     Warning Sheet                                                  No
                     Circuit Diagram                                                No
                     Antenna Change Plug                                            No
                     Service Facility List                                          No
                     Important Safeguard                                            No
                     Dew/AHC Caution Sheet                                          No
                     AC Plug Adapter                                                No
                     Quick Set-up Sheet                                             No
                     Battery                                                        No
                                                   UM size x 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
                     Safety Strap                                     Yes
                     Disney Leaflet                                   Yes
G-13   Interface     Switch         Front        Power                Yes
                                                 System Select                      No
                                                 Main Power SW                      No
                                                 Sub Power                          No
                                                 Channel Up           Yes
                                                 Channel Down         Yes
                                                 Volume Up            Yes
                                                 Volume Down          Yes
                                                 MENU                 Yes
                                                 TV/Video             Yes
                                    Rear         AC/DC                              No
                                                 TV/CATV Selector                   No
                                                 Degauss                            No
                                                 Main Power SW                      No
                     Indicator                   Power                              No
                                                 Stand-by                           No
                                                 On Timer                           No
                     Terminals      Front        Video Input          RCA x 1
                                                 Audio Input          RCA x 2
                                                 Other Terminal       Head Phone
                                    Rear         Video Input(Rear1)   RCA x 1
                                                 Video Input(Rear2)            No
                                                 Audio Input(Rear1)   RCA x 2
                                                 Audio Input(Rear2)                 No
                                                 Video Output                       No
                                                 Audio Output                       No
                                                 Euro Scart                         No
                                                 Color Stream                       No
                                                 Diversity                          No
                                                 Ext Speaker          Yes

                                                        A3-3
                          GENERAL SPECIFICATIONS
                                            DC Jack 12V(Center +)                                No
                                            VHF/UHF Antenna Input                     F Type
                                            AC Outlet                                            No
G-14   Set   Size                           Approx.    W x D x H (mm)                   510.0 x 442.5 x 572
                                            w/o Speaker,Legs Approx. W x D x H (mm)     510.0 x 442.5 x 488.5
G-15   Weight                               Net (Approx.)                             17.4kg     ( 38.3lbs)
                                            Net w/o Speaker,Legs Approx.              17.0 kg    ( 37.4lbs )
                                            Gross (Approx.)                           21.3kg     ( 46.9lbs)
G-16   Carton               Master Carton                                                        No
                                            Content                                   ----       Sets
                                            Material                                       --    /--
                                            Dimensions      W x D x H(mm)               -- x -- x --
                                            Description of Origin                                No
                            Gift Box                                                  Yes
                                            Material                                  Double / Full Color
                                            Dimensions      W x D x H(mm)              596 x 575 x 580
                                            Design                                    As per Buyer's
                                            Description of Origin                     Yes
                            Drop Test                                                 Natural Dropping At 1 Corner / 3 Edges
                                                                                                    / 6 Surfaces
                                             Height (cm)                                46
                            Container Stuffing                                        316        Sets/40' container
G-17   Cabinet Material     Cabinet          Cabinet Front                            PS 94V0 DECABROM
                                             Cabinet Rear                             PS 94V0 DECABROM
                            PCB              Non-Halogen Demand                                  No
                                             Eyelet Demand                                       No
G-18   Environment          Pb Free          Lead-free Solder                                    No
                                             Other                                               No
                            Cd Free                                                              No




                                                 A3-4
                                           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
*   terminal, this may cause the spring to be damaged.
                                                                             amount of alcohol. (Refer to Fig. 1-3.)

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.


                                                                                                                               Fig. 1-3
                                   GND on the CRT
                                                                          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                                                                Fig. 1-4


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

          Rubber Cap




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

    Set Key        Remocon Key                                                        Operations
  VOL. (-) MIN              0             Releasing of V-CHIP PASSWORD and LOCK PASSWORD.
                                          Initialization of the factory.
  VOL. (-) MIN              1
                                          NOTE: Do not use this for the normal servicing.
                                                    If you set a factory initialization, the memories are reset such as the clock
                                                    setting, the channel setting, the POWER ON total hours, and PLAY/REC
                                                    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".

                                          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 1 second.
                                                                             INIT    00   00           Initial setting content of MEMORY IC.
3. After the confirmation of using hours, turn off the power.
                                                                             CRT ON 0010               POWER ON total hours.
                                                                                                        = (16 x 16 x 16 x thousands digit value)
                                                                                                        + (16 x 16 x hundreds digit value)
                                                                                    FIG. 1              + (16 x tens digit value)
                                                                                                        + (ones digit value)

                                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       60   99     93    1B    B3    24     3B      09     00       07   05   80   A8     00    08

                 10    02

                                                                   Table 1
1. Enter DATA SET mode by setting VOLUME to minimum.
2. While holding down VOLUME button on front cabinet, press key 6 on remote control for more than 1 second.
    ADDRESS and DATA should appear as 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 ENTER 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 ENTER 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. While holding down VOLUME button on front cabinet, press key 1 on remote control for more than 1 second.
11. After the finishing of the initializing of shipping, the unit will turn off automatically.




                                                                    C-1
                                       ELECTRICAL ADJUSTMENTS
1. BEFORE MAKING ELECTRICAL                                         2. BASIC ADJUSTMENTS
   ADJUSTMENTS
                                                                    2-1: VIF VCO
Read and perform these adjustments when repairing the
circuits or replacing electrical parts or PCB assemblies.           1. Place the set with Aging Test for more than 10 minutes.
                                                                    2. Receive an 80dB monoscope pattern.
CAUTION                                                             3. Connect the digital voltmeter between the pin 5 of



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