Service Manuals, User Guides, Schematic Diagrams or docs for : Daewoo TV cp_820_194

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cp_820_194


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                                                     S/M No: TCP820BEF0




        Service Manual
        Colour Television NORMAL / WIDE STEREO
        CHASSIS : CP-820
        MODEL : DTK-28A7Z ** / DTK-28B1Z **
                            DTK-28W5Z ** / DTK-28B2Z **
                            DTK-28A6Z ** / DTK-28G6Z **
                            DTK-2880Z ** / DTK-28G7Z **
                                           DTK-28G8Z **


    Specifications
                                       Normal                                        Wide

CRT                           A66EAK071X44                                  A66EAK001X44

SYSTEM                PAL/SECAM-B/G,D/K,PAL-I/I',SECAM-L/L'         NTSC-3.58/4.43 (Play back)

Main Voltage          230V AC, 50Hz

                      Stand-by mode : 2.0Watts
Power Consumption
                      Normal operating mode : 120 Watts

Sound Output          10 + 10 Watts, 10% THD at RF 60% mod. (1kHz)

Speaker               12W 8ohm x 2 EA

Antenna Impdeance     75 ohm unbalanced input (Din Standard)

Tuning System         Frequency Synthesize(FS) Tuning System

Tuner                 UV1316/A(Philips), DT5-BF18D(Partsnics), EL2782-105-B(Siel), TECC2949PG35W(S/S)

Number of Program     100 programs

                      21 pin EURO-SCART jack (AV input, TV output, RGB input)
                      21 pin EURO-SCART jack (AV input, S-VHS input)
Aux. Terminal         RCA type AV input jack
                      Headphone jack


Remote Controller     R-22D06 with 2 "AAA" type batteries

                      TOP(5 Page memory) & FLOF(7 Page memory)
Teletext              - West option : English, German/Dutch/Flemish, French, Italian, Spanish/Portuguese,
                                   Swedish/Finnish/Danish, Hungarian, Rumanian, Turkish

OSD Language          - West : English, German, French, Italian, Spanish, Nethelands, Swedish




                Caution
                : In this Manual, some parts can be changed for improving. their
                  performance without notice in the parts list. So, if you need the
                  latest parts information, please refer to PPL(Parts Price List)in
                  Service Information Center(http://svc.dwe.co.kr)


           DAEWOO ELECTRONICS Corp.
            http : //svc.dwe.co.kr                                                  MAY 2003
TABLE OF CONTENTS
SAFETY INSTRUCTION .................................................................................................................. 2

SPECIFICATIONS ............................................................................................................................ 3

CIRCUIT BLOCK DIAGRAM ........................................................................................................... 4

ALIGNMENT INSTRUCTION ........................................................................................................... 5

SCHEMATIC DIAGRAM .................................................................................................................. 12

EXPLODED VIEW ............................................................................................................................ 14

PRINTED CIRCUIT BOARD ............................................................................................................ 16

SERVICE PARTS LIST .................................................................................................................... 19

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

IC DESCRIPTION ............................................................................................................................. 1

IC DC VOLTAGE CHARTS .............................................................................................................. 18


                                                                       1
SAFETY INSTRUCTION

 WARNING : Only competent service personnel may carry out work involving the testing or repair of this equipment




   X-RAY RADIATION PRECAUTION
1. Excessive high voltage can prodece potentially haz-            2. The only source of X-RAY Radiation in this TV receiver
  ardous X-RAY RADIATION. To avoid such hazards,                     is the picture tube. For continued X-RAY RADIATION
  the high voltage must not exceed the specified limit.              protection, the replacement tube must be exactly the
  The nominal value of the high voltage of this receiver is          same type tube as specified in the parts list.
  29-31kv at max beam current. The high voltage must
  not, under any circumstances, exceed 35kv. (33kv :
  SAMSUNG CRT)
   Each time a receiver require servicing, the high volt-
  age should be checked. It is imprortant to use an accu-
  rate and reliable high voltage meter.


   SAFETY PRECAUTION
1. Potentials of high voltage are present when this               2. If any Fuse in this TV receiver is blown, replace it with
  receiver is operating. Operation of the receiver outside          the FUSE specified in the Replacement Parts List.
  the cabinet or with the back board removed involves a           3. When replacing a high wattage resistor ( oxide metal
  shock hazard from the receiver.                                   film resistor ) in circuit board, keep the resistor 10mm
  1) Servicing should not be attempted by anyone who is             away from circuit board.
     not thoroughly familiar with the precautions neces-          4. Keep wires away from high voltage or high tempera-
     sary when working on high-voltage equipment.                   ture components.
  2) Dischange the high potential of the picture tube             5. This receiver must operate under AC230 volts, 50Hz.
     before handling the tube. The picture tube is highly           NEVER connect to DC supply or any other power or
     evacuated and if broken, glass fragments will be               frequency.
     violently expelled.




   PRODUCT SAFETY NOTICE
   Many electrical and mechanical parts in this have                nents having such features are identified designated
   special safety-related characteristics. These charac-            symbol on the parts list.
   teristics are often passed unnoticed by a visual                 Before replacing any of these components, read the
   inspection and the X-RAY RADIATION protection                    parts list in this manual carefully. The use of substitute
   afforded by them cannot necessarily be obtained by               replacement parts which do not have the same safety
   using replacement components rated for higher volt-              characterisitics as specifide in the parts list may create
   age, wattage, etc. Replacement parts which have                  X-RAY Radiation.
   these special safety characteristics are identified in
   this manual and its supplements, electrical compo-




                                                              2
SPECIFICATIONS

PIN   Signal Designation                Matching Value
1     Audio Out (linked with 3)         0.5Vrms, Imp < 1 k (RF 60% MOD)
2     Audio In (linked with 6)          0.5Vrms, Imp < 10 k
3     Audio Out (linked with 1)         0.5Vrms, Imp < 1 k (RF 60% MOD)
4     Audio Earth
5     Blue Earth
6     Audio in (linked with 2)          0.5Vrms, Imp < 10 k (RF 60% MOD)
7     Blue in                           0.7Vpp + 2dB, Imp 75
                                               -
8     Slow (Function) Switching         TV : 0-2V, PERI : 9.5 - 12V, Imp > 10 k
9     Green Earth
10    NC
11    Green In                          0.7Vpp + 2dB, Imp 75
                                               -
12    NC
13    Red Earth
14    Rapid(Blanking) Switching Earth
15    Red In, C In                      0.7Vpp + 2dB, Imp 75
                                               -
16    Rapid(Blanking) switching         Logic 0 : 0 - 0.4V, Logic 1 : 1 - 3V, Imp 75
17    Video Earth
18    Rapid Blanking Earth
19    Video Out                         1Vpp + 2dB, Imp 75
                                             -
20    Video In, Y In                    1Vpp + 2dB, Imp 75
                                             -
21    Common Earth




                                        3
CIRCUIT BLOCK DIAGRAM




                  4
ALIGNMENT INSTRUCTIONS
User Remocon
1. R-22D06




   TV...................................TXT                 TV................................TXT


                                                            PR UP..........................PAGE UP
   VOLUME...............VOLUME                              (CURSOR UP)
   DOWN ..................DOWN
   (CURSOR LEFT)                                            VOLUME UP...........VOLUME UP
                                                            (CURSOR RIGHT)
   MENU.......................MENU
                                                            PR DOWN..............PAGE DOWN
                                                            (CURSOR DOWN)
   POWER.................POWER

                                                            NORMAL .................... Not used
   PR ......................... PAGE
   NUMBER                   NUMBER                          A V .............................. Not used
   0-9                           0-9
                                                            TXT ............................. Not used

                                                            SOUND ....................... Not used
   SLEEP...................Not used                         MODE
                                                            MUTE .......................... MUTE
   Not used................CANCEL                           Not used ...................... INDEX
   Not used................... HOLD                         Not used ....................... Size
   RECALL...............SUBPAGE                             Zoom ..................Double Window
   STILL......................REVEAL                        EFFECT ....................... Not used
   Not used ..........................R                     Not used ...................... C
   Not used ..........................G                     Not used ....................... Y




                                                  R-22D06




                                              5
                                                                                 ALIGNMENT INSTRUCTIONS



* How to Enter the " Service Mode " with user remocon.
1) Set the TV Pr 91
2) Sharpness " MIN " control.
3) Push the Red, Green, Menu buttons in regular sequency within 5 seconds after setting TV power off.
4) You can see the Menu of " service mode " on the screen.
5) The PR UP/DOWN buttons on the remote controller are used to move the selection bar up or down the Menus.
6) The VOL UP/DOWN buttons on the remote controller are used to adjust levels.
7) If you want to exit from " Service Mode " then power the TV off.




                      V. Slope         -002            Tuner is        Phi            Osd Contrast      380
                      V. Center         887            Flat Option     NO             Osd Bright        000
                      V. Size           091            Svm SVG         020            Text Gain         NO
SVC      v1           S. Curve          035            Svm SVD         001            Tilt Option       NO
                      H. Center        -325            Svm SVDEL       013            Transparent       NO
CP-820                H. Width          088            Svm SVCOR       012            Vertical angle    000
                      EW. Para         -068            Bcl Thres       430            Vertical bow      000
                      EW. Cor Top       015            Bcl Tc          250
                      EW. Cor Low       015            Bcl Gain        511
                      EW.Sym           -013            Nor1 Bright     038
                      R. Bias           330            Nor1 Cont       058
                      G. Bias           330            Nor1 Color      038
                      B. Bias           330            Nor1 Sharp      032
                      R. Drive          370            Nor1 Tint       032
                      G. Drive          370            Nor2 Bright     038
                      B. Drive          370            Nor2 Cont       038
                      G2 Adjust         000            Nor2 Color      038
                      Sub bright        000            Nor2 Sharp      032
                      Double TEXT       514            Nor2 Tint       032
                      Wide Option        NO            Dolby3411       NO




- You can see the SVC Menu by OSD in TV set.




                                                           6
                                                            ALIGNMENT INSTRUCTIONS


                   Alignment Instructions for CP-820 Chassis
  1 PAGE
CHASSIS                                   CP-820
  MODEL          DTK-28A7ZZF   DTK-28A7ZLF     DTK-28W5ZZF       DTK-28W5ZLF
  V. Slope          -002          -002             -002            -002
 V. Center           887           887               035             035
   V.Size            091           091               111             111
  S.Curve            035           035               010             010
  H.Center          -325          -325             -316            -316
  H.Width            088           088               044             044
  EW.Para           -068          -068             -059            -059
EW.Cor Top           015           015               004             004
EW.Cor Low           015           015               004             004
  EW. Sym           -013          -013             -013            -013
   R Bias            330           330               330             330
   G Bias            330           330               330             330
   B Bias            330           330               330             330
  R Drive            370           370               370             370
  G Drive            370           370               370             370
   B Drive           370           370               370             370
 G2 Adjust           000           000               000             000
 Sub Bright          000           000               000             000
Double TEXT          514           514               514             514
Wide Option          NO             NO                YES              YES

  2 PAGE
  Tuner Is            Phi           Phi               Phi              Phi
 Flat Option          N0            N0               N0                N0
  Svm SVG            



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