Daewoo DV-K11WZ-PB/A Service Manual
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Daewoo DV-K11WZ-PB/A Service Manual

Daewoo DV-K11WZ-PB/A Service Manual

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Service Manual
Model : DV-K11WZ-PB/A
DV-K11WY-PB
DV-K11WZ-QB/A
DAEWOO ELECTRONICS CO., LTD
OVERSEAS SERVICE DEPT.

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Summary of Contents for Daewoo 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 AUDIO GENERAL Input -8 dBs, (CENELEC standard) Power requirement AC90~260V, 50/60Hz more than 47 k-ohms, unbalanced Power consumption Typical 13W Output -6 dBs, (CENELEC standard), Temperature 5¡£ C~35¡£ C (Operating) less than 1 k-ohm, unbalanced -20 C~60 C (10 k-ohms, load) (Storage temperature) Frequency range 100 Hz to 8,000 Hz...
  • Page 3 AFETY HECK AFTER ERVICING Examine the area surrounding the repaired location for damage or deterioration. Observe that screws, parts and wires have been returned to original positions. Afterwards, perform the following tests and confirm the specified values in order to verify compliance with safety standards. 1.

  • Page 4: Table Of Contents

    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...

  • Page 5: Controls And Functions

    1. CONTROL AND FUNCTIONS FRONT DV-K11WZ-PB/A DIGITAL ECHO VOL 1 VOL 2 NTSC PLAY BACK RECORDING • HIGH SPEED REWIND POWER STOP/EJECT MIC 1 MIC 2 AUTO REPEAT PAUSE/STILL PLAY CST.IN NTSC A.REPEAT REC PLAY DV-K11W Hi-Fi DV-K11WY-PB (Hi-Fi) DIGITAL ECHO...

  • Page 6: Electrical Adjustments

    2. ELECTRICAL ADJUSTMENT SERVO CIRCUIT ADJUSTMENT METHOD VIDEO HEAD SWITCHING POSITION Adjustment Parts Checking Point Measuring Equipment Mode Test Tape R305 DP-2 R595 Oscilloscope PLAY PT01 PIN (STAIR STEP) ¤Ø PHONE MODULATOR JACK R305 POWER MODULE 6.5H±0.5H PT01 R595 TOP VIEW CH-1 OSCILLOSCOPE CH-2...

  • Page 7: Audio Circuit Adjustment Method

    AUDIO CIRCUIT ADJUSTMENT METHOD AUDIO RECORD BIAS Adjustment Parts Checking Point Measuring Equipment Test Tape Input Signal A/C Head PCB R292 Audio level meter None signal 3.0mVrms PHONE MODULATOR JACK R292 Audio LEVEL METER DECK ASSY – POWER A/C HEAD A/CHEAD MODULE ! Connection Method...

  • Page 8: Trouble Shooting Flow Chart

    3. TROUBLE SHOOTING FLOW CHART POWER CIRCUIT • When change the parts which are out of order, first, remove the power plug from the socket and then discharge the voltage across between both terminals of C807. (Use an external scores of KΩ resistance) •...
  • Page 9 No Voltage output Is voltage supplied Check F801, L801, Via CN11? D802 The voltage of #1 of Check the secondary IC11 is 5.7V and stable circuit The voltage of #1 of IC11 Check the pattern fluctuate and T11, L11, IC11 in 4.8V~5.7V Measure resistance Check the...

  • Page 10: Servo-Syscon Circuit

    SERVO SYSCON CIRCUIT Playback picture is not good. Noise appears Adjust although adjusting tracking tracking. Check and Noise shakes up Noise appears re-adjust the although change and down on the Path of Deck. screen. cassette tape. CTL HEAD height is Adjust the HEAD Is CTL pulse out normal and there is...
  • Page 11 Playback picture is not good. Noise appears on the screen Check flow A on the whole. Are SW pulse Is SW pulse supplied Check D.PG input applied to from pin of IC601? and connector. HeadAmp circuit? Is Enve.wavefrom Check pattern supplied to at pin of PT01 Check video circuit.
  • Page 12 Drum M/T loading stops. Check Is Motor 12V supplied? POWER MODULE Is pin D.FG of Check C509, R523 IC601 supplied. Is pin D.PWM (pin ) Check IC601 of IC601 supplied? Check connector and Motor. Capstan M/T loading stops. Is Motor 12V supplied? Check power circuit.
  • Page 13 Drum M/T and Capstan M/T rotate at regular speed. (In REC mode) Is C. Sync applied to Check C. Sync of pin of IC601? IC 401 and Pattern Check Motor. Emergency mode when plugging (Power cord) Is EVER 5V supplied? Check power circuit.
  • Page 14 Cassette is not inserted. Check power Is Motor 12V supplied? circuit CAM DATA is changed Check connector. Check DECK part. when CST IN? Is 5V applied to Is 5V supplied at Check PATTERN pin of IC502 when CST IN? pin of IC601? Chek IC502 Check IC601...

  • Page 15: Audio Circuit (Normal)

    AUDIO CIRCUIT (NORMAL) No sound in the playback mode. Is 9V applied to pin & Is the output at pin‘ Check power circuit. of IC201? of IC201? Is 5V applied to 1of IC201? Check IC 601 Is pin=of IC201 0V? Is there Audio output Check circuit adjacent at pin...
  • Page 16 No sound in the playback mode after recording Is the signal applied to Check circuit adjacent pin 6 of IC201? R209, R210, C207 Is 5V applied to Check IC601. pin = of IC201? Is there output at pin “ Check IC201. of IC201? Is the voltage above 10V Check Q202 and T201.

  • Page 17: Audio Circuit (Hi-Fi)

    AUDIO CIRCUIT (HI-FI) No sound in the E-E mode. Is 12V applied to pin a of IC901? Check POWER circuit Is 5V applied to pin 3 g of IC901? Is signal input into pin ^, & Check of IC901 in LINE mode? PHONE jack Is 5V and clock data applied Check IC601...
  • Page 18 No Hi-Fi Sound in playback mode Is the ENVE level of Check the ICH01 C919 more than 120mVp-p? of PRE-AMP circuit Is A.SW PULSE input into Check pin = of IC601 pin J of IC901? Is 5V and clock data applied Check IC601 to pin 4, 5 of IC901? Is signal input into pin S, k...

  • Page 19: Vidio Circuit

    VIDEO CIRCUIT Is video signal input into pin of IC301? Check PHONE jack Is signal output from Is 5V supplied to pin Check pin of IC301? and of IC301? power circuit Is Serial clock and data Check signal input into IC601 , pin pin , of IC301? 14 15...
  • Page 20 Is the video signal from pin of IC301? Check PHONE jack Is ON/OFF 5V supplied to pin and Check 5V CIRCUIT pin of IC301 at 5volts? (IC801, Q802, Q803) Is REC(H) supplied to anode of Check IC601 DA01 at 4.2 volt? Is the down-converted color signal Check IC302 from pin...
  • Page 21 Is the video signal obtained from Check PHONE jack of IC301? and pattern Is ON/OFF 5V supplied to pin Check ON/OFF 5V CIRCUIT and pin of IC301 at 5volts? (IC801, Q802, Q803) Is REC(H) supplied to anode of Check IC601 DA01 at 4.2volt? Is the video signal from pin Check IC301...
  • Page 22 Is PB-FM signal from HEA DAMP Check HEAD AMP circuit fed to pin of ICA01? Is ON/OFF 5V supplied to pin and Check ON/OFF 5V CIRCUIT. pin of IC301 at 5volts? Is REC(H) supplied to anode of Check IC601 DA01 at 0volt? Is Y-FM signal from pin Check PB EQ CIRCUIT ICA01 fed to pin...
  • Page 23 Is the PAL color signal from pin Check HEAD AMP circuit ICA01 fed to pin of IC301 through AMP circuit? Is ON/OFF 5V supplied to pin Check ON/OFF 5V CIRCUIT of IC301 at 5volts? Is QV SYNC supplied to anode of Check QV SYNC D301 at 0 volts? Is the PAL color signal from pin...
  • Page 24 Is the miexd modulating luminance signal and down converted color signal Check REC Y EQ and obtained from pin of ICA301? RA04 and pattern Is ON/OFF 5V supplied to pin Check ON/OFF 5V CIRCUIT ICA01 at 5volts? Is REC (H) supplied to pin Check IC601 of ICA01 at 4.2volts? Is the signal from pin...

  • Page 25: Waveforms On Video Circuit

    4. WAVEFORMS ON VIDEO CIRCUIT WAVEFORMS OF THE LUMINANCE AND COLOR IN THE RECORD MODE (Color bar ¤ VIDEO INPUT SIGNAL ¤Ł CCD INPUT SIGNAL ¤ØCCD OUTPUT SIGNAL (500mV/10ms) (100mV/10ms) (100mV/10ms) Pin R of IC301 Pin y of IC301 (0.5Vp-p) Pin Y of IC301 (0.5Vp-p) (PAL Color bar input: 1.0Vp-p) input)
  • Page 26 WAVEFORMS OF THE PAL LUMINANCE AND COLOR IN THE PB MODE (DP-1 test tape) ¤ PLAYBACK ENVE ¤Ł CCD INPUT SIGNAL ¤ØCCD OUTPUT SIGNAL (200mV/5ms) (100mV/10ms) (100mV/10ms) Pin S of IC301 Pin y of IC301 Pin Y of IC301 ¤ PLAYBACK COLOR ¤Œ...
  • Page 27 WAVEFORMS OF THE SERVO/SYSCON CIRCUIT £ 1V/10ms £ 1V/10ms £ 1V/10ms £ 1V/10ms £ 1V/10ms £ 1V/10ms £ 1V/10ms £ 1V/10ms...

  • Page 28: Μ-Com Part

    5. µ-COM PORT Port Port Name Port Function Initial V. CLK VIDEO SERIAL CLOCK V. DATA VIDEO SERIAL DATA SP (L), EP (M), LP (H) Amute_H AUDIO MUTE OUTPUT PWR ON (L) POWER ON (L) OUTPUT HiFi_dat HIFI IC CONTROL I C BUS DATA S_REEL.P SUPPLY REEL PULSE INPUT...
  • Page 29 Port Port Name Port Function Initial Auto Repeat LED Auto Repeat LED OUTPUT Record LED Record LED OUTPUT No-col-kil (H) TV/VCR LED OUTPUT EE (L) EE MODE OUTPUT NOT USED HIFI_CLK HIFI IC CONTROL I C BUS CLOCK TV (H)/VCR (L) INPUT SELECTION OUTPUT REC CTL RECORD CONTROL SIGNAL OUTPUT...

  • Page 30: Circuit Diagram

    6. CIRCUIT DIAGRAM CONNECTION DIAGRAM...

  • Page 31: Power Circuit Diagram

    POWER CIRCUIT DIAGRAM...

  • Page 32: Servo/Syscon Circuit Diagram

    SERVO/SYSCON CIRCUIT DIAGRAM...

  • Page 33: Video & Head-Amp Circuit Diagram

    VIDEO & HEAD-AMP CIRCUIT DIAGRAM...

  • Page 34: Audio Circuit Diagram

    AUDIO CIRCUIT DIAGRAM...

  • Page 35: Hi-Fi Audio Circuit Diagram

    HI-FI AUDIO CIRCUIT DIAGRAM...

  • Page 36: Karaoke Circuit Diagram

    KARAOKE CIRCUIT DIAGRAM...

  • Page 37: Logic Sw Circuit

    LOGIC SW CIRCUIT DIAGRAM...

  • Page 38: Components Location Guide On Pcb Bottom View

    8. DISASSEMBLY PACKING ASS'Y Part No. Part Name Q'ty Description Remark 97P4921800 PAD FRONT/BACK 97P4803100 POLYBAG FOR SET P.E FOAM 97P8040700 BOX CARTON EX300*SCP150*EX300 97P9560000 MANUAL OWNERS ART PAPER 97P880RP15 CABLE RF PAL 1.5M 97P0424100 COVER ACCESSORY LD-PE T0.1 97P1R2BU03 REMOCON HANDSET AS VR-F2BU 97P7500001...
  • Page 39 SET ASS'Y Part No. Part Name Q'ty Description Remark 97P0463300 COVER TOP SECC T0.7+PT FC23227-C 7173401212 SCREW TAPPTITE TT2 BIN 4x12 BL MFZN COVER/T FIX 7173401211 SCREW TAPPTITE TT2 BIN 4x12 MFZN DECK FIX 7174301011 SCREW TAPPTITE TT2 RND 3x10 MFZN DECK FIX 97PB0887D–...

  • Page 40: Packing Assembly

    Part Name Q'ty Description Remark 97P0315700 PANEL FRONT HI-PS 97P1618300 WINDOW FRONT PMMA 97P1349600 KNOB FUNCTION 97P1711600 INDICATOR POWER GE-PS 97P1816500 DOOR F/L 97P3040000 SPRING F/L DOOR SWPB 97P1711500 INDICATOR LED GP-PS 97P1349700 KNOB A/REC 97P3119500 RING VOLUME 97P1502800 BADGE DAEWOO...

  • Page 41: Set Assembly

    9. ELECTRICAL PARTS LIST STANDARD PART NUMBER CODING •••••• RESISTOR CODING Tolerance Type of Resistor Type of Resistor Distance Value Example Symbol Tolerance Composition Resistor Code Wattage Code Distance Carbon Resistor 478 ....0.47Ω ±1% –A 1/6W 2.5 mm Fusible Resistor 479 ....4.7Ω...

  • Page 42: Pan Assembly

    •••••• CAPACITOR CODING 1. Normal Tolerance Value Distance Type Voltage (Same as Fixed (Same as Fixed (Same As Resistor) Code Type Code Voltage Resistor) Fixed Resistor) Aluminum 6.3V Barrier Layer Shape Ceramic Electrolytic Characteristic Line Across Mylar Styrol Metalized Polyester Mica 100V Tantal...
  • Page 43 PCB MAIN AS LOC. PART CODE PART NAME PART-DESC LOC. PART CODE PART NAME PART-DESC DZEU01Z--- DIODE EU01Z CN11 97P6284000 CONN WAFER YFAW025-105 ANGLE 3.5X4 U001 97P65141PA PCB POWER 197X197X1.6T/6 CN21 97P6284300 CONN WAFER YFAW025-108 ANGLE 3.5X4 C801 CL1UE3104M C LINE ACROSS AC275V 0.1MF M 1.40 WOR CH1TEE472M C CER A AC...
  • Page 44 LOC. PART CODE PART NAME PART-DESC LOC. PART CODE PART NAME PART-DESC SW501 5S70101059 SW MICRO SPPB62 CW07 CEXF1H479A C ELECTRO 50V RSM 4.7MF 4X7 S601 97P0S01800 SENSOR REEL SG-239S CW08 CEXF1H100A C ELECTRO 50V RSM 10MF (5X7) TP S602 97P0S01800 SENSOR REEL SG-239S...
  • Page 45 LOC. PART CODE PART NAME PART-DESC LOC. PART CODE PART NAME PART-DESC C313 CXSL1H151J C CERA 50V SL 150PF J C607 CXCH1H120J C CERA 50V CH 12PF J (TAPPING) C315 CEXF1H478A C ELECTRO 50V RSM 0.47MF 4X7 C608 CXCH1H120J C CERA 50V CH 12PF J (TAPPING) C316 CEXF1H108A...
  • Page 46 LOC. PART CODE PART NAME PART-DESC LOC. PART CODE PART NAME PART-DESC CA13 CBZP1C103M C CERA SEMI 16V Y5S 0.01MF M(AXIAL L310 5CPX330J-- COILPEAKING 33UH J (RADIAL) CA16 CBZP1C103M C CERA SEMI 16V Y5S 0.01MF M(AXIAL L311 5CPX330J-- COILPEAKING 33UH J (RADIAL) CA19 CCZF1H104Z C CERA...
  • Page 47 LOC. PART CODE PART NAME PART-DESC LOC. PART CODE PART NAME PART-DESC C403 CCZB1H102K C CERA 50V B 1000PF K (AXIAL) D825 DZN4003--- DIODE IN4003 C405 CCZB1H102K C CERA 50V B 1000PF K (AXIAL) L921 5PB13857-- COIL BEADBI3857(AXIAL) C505 CCZB1H221K C CERA 50V B 220PF K (AXIAL) RA01...
  • Page 48 LOC. PART CODE PART NAME PART-DESC LOC. PART CODE PART NAME PART-DESC RW53 RD-AZ101J- R CAR BON FILM1/6 100 OHM J RW03 RD-AZ153J- R CAR BON FILM1/6 15K OHM J RW54 RD-AZ102J- R CAR BON FILM1/6 1K OHM J RW04 RD-AZ102J- R CAR BON FILM1/6 1K OHM J...
  • Page 49 LOC. PART CODE PART NAME PART-DESC LOC. PART CODE PART NAME PART-DESC R404 RD-AZ103J- R CAR BON FILM1/6 10K OHM J R542 RD-AZ182J- R CAR BON FILM1/6 1.8K OHM J R405 RD-AZ333J- R CAR BON FILM1/6 33K OHM J R543 RD-AZ101J- R CAR BON FILM1/6 100 OHM J...
  • Page 50 PCB LOGIC AS LOC. PART CODE PART NAME PART-DESC LOC. PART CODE PART NAME PART-DESC B001 97P2339200 HOLDER LED SW706 5S50101Z90 SW TACT SKHV10910A B002 97P2315000 HOLDER LED ABS-780/HF-380 SW707 5S50101Z90 SW TACT SKHV10910A DL701 DSMV7311C- LED LAMP SMV7311C GREEN BULE SW708 5S50101Z90 SW TACT SKHV10910A...
  • Page 51 MONO AUDIO OPTION TABLE (DV-K11WZ-QB/A) LOC. PART CODE PART NAME PART-DESC LOC. PART CODE PART NAME PART-DESC IC201 1BA7790LSK IC AU DIOBA7790LS Q205 TZRC104M-- KRC104M AUTO PA01 97P6289590 CONN HOU.00-8370-041-000-80 C208 CBZP1C103M C CER A SEMI16V Y5S 0.01MF M(AXIAL PJ01 97P6307500 JACK PINDSPM-8907-04...
  • Page 52 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.daewoo.co.kr VERSION 1.0 PRINTED DATE: APR.1997...

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