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                                                                                        S/M No:TCP062PEF0


Service Manual
TV / VCR Combination
CHASSIS : CP-062
MODEL : DVT-14/20H1(T)F                         DVT-14/20H2(T)F
                            DVT-14/20H1(T)P     DVT-14/20H2(T)P
                            DVT-14/20H1(T)D     DVT-14/20H2(T)D
                            DVT-14H2(T)FG/(T)PG DVT-14H2(T)FB/(T)PB




  SPECIFICATIONS
 ITEMS             MODEL
                                                                                                                             REMARK
                                             DVT-14/20H1(T)F DVT-14/20H2(T)F DVT-14/20H1(T)P DVT-14/20H2(T)P
                                                            ,               ,               ,               ,


                                             DVT-14/20H1(T)D, DVT-14/20H2(T)D, DVT-14H2(T)FG/(T)PG , DVT-14H2(T)FB/(T)PB


 TV SECTION      STANDARD                    PAL-B/G(F MODEL), PAL-I/II(P MODEL), PAL/SECAM-B/G, D/K (D MODEL)


                 SCREEN SIZE                 14": A34JLL90X01, A34AGT13X, A33LPE02X01, A34EAC01X06,


                                             20": A48JLL90X01, A48LPE01X01, A48EAX33X01


                 MAIN VOLTAGE                220V~240V AC, 50Hz


                 POWER                       STAND BY MODE : BELOW 5 Watts


                 CONSUMPTION                 OPERATION MODE : 14" = 59Watts, 20" = 65Watts


                 SOUND OUTPUT                1Wmin(14"), 1.2 Wmin(20")(at 60% mod., 10% THD)


                 SPEAKER                     3Watts 8 Ohm


                 ANTENNA


                 IMPEDANCE                   75 Ohm unbalanced input


                 TUNING SYSTEM               FVS(FREQUENCY SYNTHESIS) TUNING


                 TUNER                       VHF-L: E2-S7, VHF-H:S8-S36, UHF:S37-E69(PAL-I = UHF ONLY)


                 NUMBER OF PROGRAM           70 PROGRAM


                 AUX. TERMINAL               SCART JACK (REAR)


                 REMOTE CONTROLLER           R-46C with 2 "AAA" type batteries


                 OTHER FEATURE               ON SCREEN DISPLAY SLEEP TIMER, WAKE UP TIMER
                                                              ,


                                             FULL AUTO SEARCH, MANUAL/FINE TUNING


                                             CHILD LOCK, AUTO REPEAT


                                             PICTURE TYPE SELECTION(NORMAL 1/2, FAVOURITE)


                                             INDEX SEARCH, TV/AV


 VIDEO SECTION   SINGLE SYSTEM               PAL/SECAM colour and CCIR mono chrome signals, 625lines/50fields.


                 RECORDING SYSTEM            Rotary 2-Head herical Scan with a slant double azimuth combination video head


                 INPUT                       1Vp-p, 75 ohms, unbalanced


                 OUTPUT                      1Vp-p, 75 ohms, unbalanced


                 SIGNAL TO NOISE RATIO       45dB with NETTETE IMAGE control at center position.


                 HORIZONTAL RESOLUTION       240lines with NETTETE IMAGE control at center posion


 AUDIO           RECORDING SYSTEM            LONGITUDINAL TRACK


                 INPUT                       -3.8dBm(500m Vrms), more than 47 Kohms, unbalanced


                 OUTPUT                      -3.8dBm(500mVrms), less than 1Kohm, unbalanced


                 FREQUENCY RANGE             100Hz to 8KHZ


                 SIGNAL TO NOISE RADIO       40dB(more than)


 GENERAL         TEMPERATRE                  5 C to 35 C(operating), -20 C to 60 C(storage temperature)


                 FORMAT                      standard


                 TAPE WIDTH                  12.65mm


                 TAPE SPEED                  SP : 23.39mm/sec, LP : 11.70mm/sec


                 MAX. RECORDING TIME         SP :240min. win E-240 video cassette


                 WITH FULLSIZE CASSETTE      LP :480min. with E-240 video cassette




  DAEWOO ELECTRONICS CO., LTD
  http : //svc.dwe.co.kr                                                                                      Aug.2000
TABLE OF CONTENTS

SAFETY INSTRUCTION .................................................................................................... 2
SPECIFICATION ............................................................................................................ 3
CIRCUIT BLOCK DIAGRAM ............................................................................................ 4
ALIGNMENT INSTRUCTIONS............................................................................................ 5
SERVICE REMOCON DIAGRAM ..................................................................................... 8
SCHEMATIC DIAGRAM .................................................................................................. 11
EXPLODED VIEW .......................................................................................................... 13
PRINTED CIRCUIT BOARD............................................................................................... 15
SERVICE PARTS LIST ....................................................................................................... 16
   Different parts list for size .................................................................................................................. 27
   The different parts list for system ....................................................................................................... 29




APPENDIX ( Appendix is provided only by internet [http://svc.dwe.co.kr] )

CIRCUIT DESCRIPTION ................................................................................................... 1




                                                                                1
 SAFETY INSTRUCTION
WARNING : BEFORE SERVICING THIS CHASSIS, READ                       PRODUCT SAFETY NOTICE
THE "X-RAY RADIATION PRECAUTION", "SAFETY                           Many electrical and mechanical parts in this have special
PRECAUTION" AND "PRODUCTION SAFETY NOTICE"                          safety-related characteristics.
BELOW.                                                              These characteristics are often passed unnoticed by a
                                                                    visual inspection and the X-RAY RADIATION protection
X-RAY RADIATION PRECAUTION                                          afforded by them cannot necessarily be obtained by using
                                                                    replacement components rated for higher voltage, watt-
1. Excessive high voltage can produce potentially hazard            age,etc. Replacement parts which have these special
   ous X-RAY RADIATION. To avoid such hazards,                      safety characteristics are identified in this manual and its
    the high voltage must not exceed the specified limit            supplements, electrical components having such features
   The nominal value of the highvoltage of this receiver is         are identified by designated symbol on the parts list.
   23-25KV(14"),25-28KV(20") at max. beam current. The              Before replacing any of these components,read the parts
    high voltage must not,under any circumstances,                  list in this manual carefully.
    exceed 26KV (14"),30KV (20"). Each time a receiver              The use of substitute replacement parts which do not have
   requires servicing,the high voltage should be checked.           the same safety characteristics as specified in the parts
    It is recommended the reading of the high voltage be            list may create X-RAY Radiation.
   recorded as a part of the service records, It is important
    to use an accurate and reliable high voltage meter.
2. The only source of X-RAY radiation in this TV receiver
    is the picture tube. For continuous X-RAY RADIATION
    protection, the replacement tube must be exactly the
    same type tube as specified in the parts list.

SAFETY PRECAUTION

1. Potentials of high voltage are present when this
   receiver is operating. Operation of the receiver outside
    the cabinet or with the back board removed involves a
    shock hazard from the receiver.
  1) Servicing should not be attempted by anyone who is
      not thoroughly familiar with the precautions necesary
      when working on high voltage equipment.
  2) Always discharge the picture tube before handling the
    tube. The picture tube is highly evacuated and if
   briken, glass fragments will be violently expelled.
2. If any fuse in this TV receiveris blown, replace it with
   the FUSE specified in the Replacement Parts list.
3. When replacing a high wattage resistor ( metal oxide
    film resistor ) in circuit board, keep the resistor 10mm
   away from circuit board.
4. Keep wires away from high voltage or high temperature
    components.
5. This receiver must operate under AC260 volts, 50Hz.
   NEVER connect to DC supply or any other power or
    frequency.

                                                                2
SPECIFICATION

    ITEMS                      MODEL          DVT-14/20H1(T)F, DVT-14/20H2(T)F, DVT-14/20H1(T)P, DVT-14/20H2(T)P,       REMARK
                                          DVT-14/20H1(T)D, DVT-14/20H2(T)D, DVT-14H2(T)FG/(T)PG , DVT-14H2(T)FB/(T)PB

TV          STANDARD                    PAL-B/G(F MODEL)
SECTION                                 PAL-I/II(P MODEL)
                                        PAL/SECAM-B/G, D/K (D MODEL)
            SCREEN SIZE                 14" A34JLL90X01, A34AGT13X, A33LPE02X01, A34EAC01X06
                                           :
                                        20" A48JLL90X01, A48LPE01X01, A48EAX33X01
                                           :

            MAIN VOLTAGE                220V~240V AC, 50Hz
            POWER                       STAND BY MODE : BELOW 5 Watts
            CONSUMPTION                 OPERATION MODE : 14"= 59Watts, 20"= 65Watts

            SOUND OUTPUT                1Wmin(14" 1.2 Wmin(20" 60% mod., 10% THD)
                                                 ),           )(at
            SPEAKER                     3Watts 8 Ohm

            ANTENNA                     75 Ohm unbalanced input
            IMPEDANCE
            TUNING SYSTEM               FVS(FREQUENCY SYNTHESIS) TUNING

            TUNER                       VHF-L: E2-S7
                                        VHF-H:S8-S36
                                        UHF:S37-E69(PAL-I = UHF ONLY)

            NUMBER OF PROGRAM           70 PROGRAM
            AUX. TERMINAL               SCART JACK (REAR)

            REMOTE CONTROLLER           R-46C with 2 "AAA"type batteries

            OTHER FEATURE               ON SCREEN DISPLAY, SLEEP TIMER, WAKE UP TIMER
                                         FULL AUTO SEARCH, MANUAL/FINE TUNING
                                        CHILD LOCK
                                        AUTO REPEAT
                                        PICTURE TYPE SELECTION(NORMAL 1/2, FAVOURITE)
                                        INDEX SEARCH, TV/AV

VIDEO       SINGLE SYSTEM               PAL/SECAM colour and CCIR mono chrome signals, 625lines/50fields.
SECTION
            RECORDING SYSTEM            Rotary 2-Head herical Scan with a slant double azimuth combination video head

            INPUT                       1Vp-p, 75 ohms, unbalanced

            OUTPUT                      1Vp-p, 75 ohms, unbalanced

            SIGNAL TO NOISE RATIO       45dB with NETTETE IMAGE control at center position.

            HORIZONTAL RESOLUTION       240lines with NETTETE IMAGE control at center posion

AUDIO       RECORDING SYSTEM            LONGITUDINAL TRACK

            INPUT                       -3.8dBm(500m Vrms), more than 47 Kohms, unbalanced
            OUTPUT                      -3.8dBm(500mVrms), less than 1Kohm, unbalanced

            FREQUENCY RANGE             100Hz to 8KHZ
            SIGNAL TO NOISE RADIO       40dB(more than)
GENERAL     TEMPERATRE                  5



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