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Daewoo DV-K11WZ-PB/A, Service Manual


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1. CONTROLS AND FUNCTIONS

...................................................................................................2

2. ELECTRICAL ADJUSTMENTS

2-1. SERVO CIRCUIT ADJUSTMENT METHOD .......................................................................................3
2-2. AUDIO CIRCUIT ADJUSTMENT METHOD ........................................................................................4

3. TROUBLE SHOOTING FLOW CHART

3-1. POWER CIRCUIT .................................................................................................................................5
3-2. SERVO-SYSCON CIRCUIT .................................................................................................................7
3-3. AUDIO CIRCUIT (NORMAL) ..............................................................................................................12
3-4. AUDIO CIRCUIT (HI-FI) ......................................................................................................................14
3-5. VIDIO CIRCUIT  ..................................................................................................................................16

4. WAVEFORMS ON VIDEO CIRCUIT

........................................................................................22

5. µ-COM PART

.......................................................................................................................................25

6. CIRCUIT DIAGRAM

..........................................................................................................................27

6-1. CONNECTION DIAGRAM .................................................................................................................27
6-2. POWER CIRCUIT DIAGRAM.............................................................................................................28
6-3. SERVO/SYSCON CIRCUIT DIAGRAM .............................................................................................29
6-4. VIDEO & HEAD-AMP CIRCUIT DIAGRAM .......................................................................................30
6-5. AUDIO CIRCUIT DIAGRAM...............................................................................................................31
6-6. HI-FI AUDIO CIRCUIT DIAGRAM......................................................................................................32
6-7. KARAOKE CIRCUIT DIAGRAM.........................................................................................................33
6-8. LOGIC SW CIRCUIT ..........................................................................................................................34

7. COMPONENTS LOCATION GUIDE ON PCB BOTTOM VIEW

.................................35

8. DISASSEMBLY

8-1. PACKING ASSEMBLY.......................................................................................................................37
8-2. SET ASSEMBLY.................................................................................................................................38
8-3. PAN ASSEMBLY................................................................................................................................39

9. ELECTRICAL PARTS LIST

............................................................................................................40

Z-PB/A DV-K11WY-PB DV-K11WZ-QB/A DV-K11WZ-PB/A DV-K11WY-PB DV-K11WZ-QB/A DV-K11WZ-PB/A DV-K11WY-PB D

V-K11WZ-PB/A DV-K11WY-PB DV-K11WZ-QB/A DV-K11WZ-PB/A DV-K11WY-PB DV-K11WZ-QB/A DV-K11WZ-PB/A DV-K11W

Z-PB/A DV-K11WY-PB DV-K11WZ-QB/A DV-K11WZ-PB/A DV-K11WY-PB DV-K11WZ-QB/A DV-K11WZ-PB/A DV-K11WY-PB D

V-K11WZ-PB/A DV-K11WY-PB DV-K11WZ-QB/A DV-K11WZ-PB/A DV-K11WY-PB DV-K11WZ-QB/A DV-K11WZ-PB/A DV-K11W

Z-PB/A DV-K11WY-PB DV-K11WZ-QB/A DV-K11WZ-PB/A DV-K11WY-PB DV-K11WZ-QB/A DV-K11WZ-PB/A DV-K11WY-PB D

V-K11WZ-PB/A DV-K11WY-PB DV-K11WZ-QB/A DV-K11WZ-PB/A DV-K11WY-PB DV-K11WZ-QB/A DV-K11WZ-PB/A DV-K11W

Z-PB/A DV-K11WY-PB DV-K11WZ-QB/A DV-K11WZ-PB/A DV-K11WY-PB DV-K11WZ-QB/A DV-K11WZ-PB/A DV-K11WY-PB D

V-K11WZ-PB/A DV-K11WY-PB DV-K11WZ-QB/A DV-K11WZ-PB/A DV-K11WY-PB DV-K11WZ-QB/A DV-K11WZ-PB/A DV-K11W

VIDEO CASSETTE RECORDER

Summary of Contents for DV-K11WZ-PB/A

Page 1: ...Service Manual Model DV K11WZ PB A DV K11WY PB DV K11WZ QB A DAEWOO ELECTRONICS CO LTD OVERSEAS SERVICE DEPT...

Page 2: ...otary two head helical scan with a slant double azimuth combination video head Input 1 0Vp p 75 ohms unbalanced Output 1 0Vp p 75 ohms unbalanced Simal to noise rallio More than 43 dB Rohde Schwarz no...

Page 3: ...your particular country and locality 4 Leakage current test Confirm specified or lower leakage current between B earth ground power cord plug prongs and externally exposed accessible parts RF termina...

Page 4: ...ASSEMBLY 38 8 3 PAN ASSEMBLY 39 9 ELECTRICAL PARTS LIST 40 Z PB A DV K11WY PB DV K11WZ QB A DV K11WZ PB A DV K11WY PB DV K11WZ QB A DV K11WZ PB A DV K11WY PB D V K11WZ PB A DV K11WY PB DV K11WZ QB A...

Page 5: ...CST IN NTSC A REPEAT REC DV K11W POWER STOP EJECT NTSC PLAY BACK RECORDING HIGH SPEED REWIND PLAY AUTO REPEAT REC DIGITAL ECHO VOL 1 VOL 2 MIC 1 MIC 2 PAUSE STILL REW PLAY FF CST IN NTSC A REPEAT REC...

Page 6: ...UT R305 and trigger the scope with signal from CH1 3 Adjust R595 to the positive rising edge of SW PULSE at 6 5H 0 5H from the V SYNC 2 ELECTRICAL ADJUSTMENT 3 Adjustment Parts Checking Point Measurin...

Page 7: ...nect the Audio level meter to R01 4 After inserting a blank tape record in SP mode 5 Adjust R292 to obtain 3 0 mVrms 4 Adjustment Parts Checking Point Measuring Equipment Test Tape Input Signal R292 A...

Page 8: ...cilloscopes insulate the oscilloscope surely Use the isulating transformer and must connect GND into the primary GND But there is no connection when check the secondary circuit When change SM801 POWER...

Page 9: ...of T11 is ok Primary parts is ok Secondary parts ok Change T11 Change parts out of order YES NO YES Resistance 100 YES YES NO Check F801 L801 D802 NO Check the secondary circuit YES YES Check the patt...

Page 10: ...503 C504 C506 check R539 C518 Check IC601 YES YES YES YES YES YES YES NO NO NO NO NO NO Noise appears although adjusting tracking Is CTL pulse out from pin of IC601 Noise shakes up and down on the scr...

Page 11: ...it Check flow A Is SW pulse supplied from pin of IC601 23 Check D PG input and connector Check pattern Check connector Head Amp and Head dust Change head YES NO NO YES YES YES YES NO NO B Auto stop du...

Page 12: ...9 R523 Check IC601 YES YES YES NO NO NO Drum M T loading stops D Is the input of pin of PJ502 2V 3 5V Is pin of PJ502 2 5V Is pin C PWM of IC601 Supplied Check connector and Motor 4 Check power circui...

Page 13: ...T and Capstan M T rotate at regular speed In REC mode 8 F Is EVER 5V supplied Does X601 crystal osciliate Is CAM SW DATA Correct Check IC502 Check IC 601 Check power circuit Check IC601 and X601 Rech...

Page 14: ...supplied Check power circuit CAM DATA is changed when CST IN Is 5V applied to pin of IC502 when CST IN Chek IC502 Check connector Check DECK part Is 5V supplied at pin of IC601 Check PATTERN Check IC6...

Page 15: ...201 Is 9V applied to pin of IC201 Check power circuit Is 5V applied to 1of IC201 Is there Audio output at pin of IC201 Check PJ504 and HEAD Check circuit adjacent to R211 R212 NO NO YES YES YES YES NO...

Page 16: ...201 Is the voltage above 10V at pin of T201 Check T201 Is record current 3 0mVrms Is pin of IC201 0V Clean HEAD Asjust Record current Check IC201 NO YES YES YES YES YES NO NO NO NO No sound in the pla...

Page 17: ...01 Is signal input into pin of IC901 in LINE mode Check PHONE jack YES YES YES NO NO Is 5V applied to pin 3 g of IC901 NO Check POWER circuit Is 5V and clock data applied to pin 4 5 of IC901 Check IC6...

Page 18: ...pplied to pin 4 5 of IC901 Is signal input into pin S k of IC901 Check pin of IC601 Check IC601 Is there output at s K of IC901 Is there output at pin of IC901 Check PHONE jack Change IC901 NO YES YES...

Page 19: ...C301 Is 5V supplied to pin and of IC301 26 54 Check power circuit Is Serial clock and data signal input into pin of IC301 Check IC601 pin 1 Check RF out Check Line out YES YES YES NO NO NO 14 15 NO YE...

Page 20: ...Is REC H supplied to anode of DA01 at 4 2 volt NO YES Check IC601 Pin Is the down converted color signal obtained from pin of IC301 NO YES Change IC301 2 Is the down converted color signal from pin o...

Page 21: ...n of IC301 NO YES Check IC301 Is the luminance signal from pin of IC301 fed to pin of IC301 YES Check C302 31 26 31 38 35 36 Is the luminace signal from pin of IC301 fed to pin of IC301 NO Is QV SYNC...

Page 22: ...O YES Check IC601 Pin Is Y FM signal from pin of ICA01 fed to pin of IC301 NO YES Check PB EQ CIRCUIT QA01 QA02 QA03 Is the luminance signal from pin of IC301 fed to pin of IC301 Check IC301 11 51 47...

Page 23: ...ode of D301 at 0 volts NO YES Check QV SYNC Is the PAL color signal from pin of IC301 fed to pin of IC302 Check IC301 pin serial clock and data input YES Is the signal from pin of IC301 fed to pin of...

Page 24: ...from pin of ICA301 NO YES Check REC Y EQ and RA04 and pattern Is ON OFF 5V supplied to pin of ICA01 at 5volts NO YES Check ON OFF 5V CIRCUIT Is REC H supplied to pin of ICA01 at 4 2volts NO YES Check...

Page 25: ...put 1 0Vp p CCD INPUT SIGNAL 100mV 10ms Pin y of IC301 0 5Vp p CCD OUTPUT SIGNAL 100mV 10ms Pin Y of IC301 0 5Vp p MODULATOR FM 200mV 10ms Pin s of IC301 900mVp p REC CURRENT 1V 10ms Pin of ICA01 3 5V...

Page 26: ...tape 23 PLAYBACK ENVE 200mV 5ms Pin S of IC301 CCD INPUT SIGNAL 100mV 10ms Pin y of IC301 CCD OUTPUT SIGNAL 100mV 10ms Pin Y of IC301 VIDEO OUTPUT SIGNAL 500mV 10ms Pin W of IC301 COLOR BURST SIGNAL...

Page 27: ...WAVEFORMS OF THE SERVO SYSCON CIRCUIT 24 1V 10ms 1V 10ms 1V 10ms 1V 10ms 1V 10ms 1V 10ms 1V 10ms 1V 10ms...

Page 28: ...E 13 P34 I REMOTE REMOCON SIGNAL INPUT 14 P35 I T_REEL P TAKE UP REEL PULSE INPUT 15 P36 I V SYNC VERTICAL SYNC INPUT FOR NTSC PAL SEL 16 P37 O PB L 17 P64 I D FG DRUM FG INPUT 18 P65 I C FG CAPSTAN F...

Page 29: ...CLK NOT USED 46 RESET I RESET RESET INPUT 47 X1 I OSC IN 10MHz OSC INPUT 48 X2 O OSC OUT 10MHz OSC OUTPUT 49 Vss I GND GND 50 P63 I Mesecam H Mesecam H input ports 51 P62 I OPTION 2 Play only MONO REC...

Page 30: ...27 6 CIRCUIT DIAGRAM CONNECTION DIAGRAM...

Page 31: ...28 POWER CIRCUIT DIAGRAM...

Page 32: ...29 SERVO SYSCON CIRCUIT DIAGRAM...

Page 33: ...30 VIDEO HEAD AMP CIRCUIT DIAGRAM...

Page 34: ...31 AUDIO CIRCUIT DIAGRAM...

Page 35: ...32 HI FI AUDIO CIRCUIT DIAGRAM...

Page 36: ...33 KARAOKE CIRCUIT DIAGRAM...

Page 37: ...34 LOGIC SW CIRCUIT DIAGRAM...

Page 38: ...D FRONT BACK 1 EPS 2 97P4803100 POLYBAG FOR SET 1 P E FOAM 3 97P8040700 BOX CARTON 1 EX300 SCP150 EX300 4 97P9560000 MANUAL OWNERS 1 ART PAPER 5 97P880RP15 CABLE RF 1 PAL 1 5M 6 97P0424100 COVER ACCES...

Page 39: ...96 42V 10 97P4602700 CLAMP CORD 1 NYLON 66 BLK 5280N 11 97PD609100 CHASSIS MAIN 1 HI PS HB SBR 80 BLK 12 7173401211 SCREW TAPPTITE 2 TT2 BIN 4x12 MFZN PANEL AS FIX 13 97P2440200 BRKT F L 1 SECC T1 6 1...

Page 40: ...97P1618300 WINDOW FRONT 1 PMMA 3 97P1349600 KNOB FUNCTION 1 ABS 4 97P1711600 INDICATOR POWER 2 GE PS 5 97P1816500 DOOR F L 1 ABS 6 97P3040000 SPRING F L DOOR 1 SWPB 7 97P1711500 INDICATOR LED 1 GP PS...

Page 41: ...ce Code Distance A 2 5 mm B 5 0 mm C 7 5 mm D 10 0 mm E 12 5 mm F 15 0 mm G 17 5 mm H 20 0 mm G 17 5 mm H 20 0 mm J 22 5 mm K 25 0 mm X Auto Insertion Z Auto Insertion Tolerance Symbol Tolerance F 1 G...

Page 42: ...e Same as Fixed Resistor Characteristic Capacitance Temperature Coefficient ppm C Coefficient ppm C A 100 F 15 B 30 G 30 C 0 H 60 H 30 J 120 L 80 K 250 P 150 L 500 R 220 M 1000 S 330 N 2500 T 470 U 75...

Page 43: ...F 5X11 TP IC21 1KA431AZ IC REGULATOR KA431AZ L21 56C220K686 COILCHOKE 22UH K 27 5X0 4D L22 56C220K686 COILCHOKE 22UH K 27 5X0 4D DZ11 DBZT03C160 DIODEZENER BZT03C160 RA15 7 LOC PART CODE PART NAME PAR...

Page 44: ...RSM 47MF 5X7 TP CW06 CXSL1H151J C CERA 50V SL 150PF J LOC PART CODE PART NAME PART DESC CW07 CEXF1H479A C ELECTRO 50V RSM 4 7MF 4X7 CW08 CEXF1H100A C ELECTRO 50V RSM 10MF 5X7 TP CW10 CEXF1A470A C ELE...

Page 45: ...47MF 5X7 TP C604 CEXF1C470A C ELECTRO 16V RSM 47MF 5X7 TP C605 CEXF1H109A C ELECTRO 50V RSM 1MF 4X7 TP LOC PART CODE PART NAME PART DESC C607 CXCH1H120J C CERA 50V CH 12PF J TAPPING C608 CXCH1H120J C...

Page 46: ...V Y5S 0 01MF M AXIAL CA16 CBZP1C103M C CERA SEMI 16V Y5S 0 01MF M AXIAL CA19 CCZF1H104Z C CERA HIKF 50V 0 1MF ZAXIAL CH01 CBZP1C103M C CERA SEMI 16V Y5S 0 01MF M AXIAL CH02 CBZP1C103M C CERA SEMI 16V...

Page 47: ...4148 AUTO 52MM D821 DZN4148 DIODE 1N4148 AUTO 52MM D822 DZN4148 DIODE 1N4148 AUTO 52MM D824 DZN4003 DIODE IN4003 LOC PART CODE PART NAME PART DESC D825 DZN4003 DIODE IN4003 L921 5PB13857 COIL BEADBI38...

Page 48: ...M1 6 910 OHM J RW50 RD AZ473J R CAR BON FILM1 6 47K OHM J RW52 RD AZ471J R CAR BON FILM1 6 470 OHM J LOC PART CODE PART NAME PART DESC RW53 RD AZ101J R CAR BON FILM1 6 100 OHM J RW54 RD AZ102J R CAR B...

Page 49: ...2J R CAR BON FILM1 6 1K OHM J R541 RD AZ182J R CAR BON FILM1 6 1 8K OHM J LOC PART CODE PART NAME PART DESC R542 RD AZ182J R CAR BON FILM1 6 1 8K OHM J R543 RD AZ101J R CAR BON FILM1 6 100 OHM J R544...

Page 50: ...ACT SKHV10910A SW702 5S50101Z90 SW TACT SKHV10910A SW703 5S50101Z90 SW TACT SKHV10910A SW704 5S50101Z90 SW TACT SKHV10910A SW705 5S50101Z90 SW TACT SKHV10910A LOC PART CODE PART NAME PART DESC SW706 5...

Page 51: ...TZTA1273Y TR KTA1273Y 966Y Q203 TZRC104M TR KRC104M AUTO Q204 TZTC3198Y TR KTC3198Y 1815Y AUTO LOC PART CODE PART NAME PART DESC Q205 TZRC104M TR KRC104M AUTO C208 CBZP1C103M C CER ASEMI16VY5S0 01MFM...

Page 52: ...SEAS SERVICE DEPT DEAWOO ELECTRONICS CO LTD 686 AHYEON DONG MAPOGU SEOUL KOREA C P O BOX 8003 SEOUL KOREA TELEX DWELEC K28177 8 CABLE DAEWOOELEC FAX 82 2 364 5588 TEL 82 2 360 7114 8114 http www dwe d...

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