Daewoo DV-K882SY-AN Service Manual
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Daewoo DV-K882SY-AN Service Manual

Daewoo DV-K882SY-AN Service Manual

Pal/mesecam/secam
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Service Manual
MODEL: DV-K882SY-AN
=
MARCHE
EJECT
 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 CO., LTD.
PAL/MESECAM/SECAM
LECTURE
R.R.
AV.R.
STOP
ENR/IMM

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Summary of Contents for Daewoo DV-K882SY-AN

  • Page 1 : 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 CO., LTD.

  • Page 2: Specifications

    SPECIFICATIONS GENERAL AUDIO Power requirement : AC 230V, 50Hz Recording system : Longitunal track Power consumption : Typical 18W (in PB mode) Hi-Fi, Rotary two-head helical Temperature : 5°C~35°C (Operating) scan with a slant double-azith –20°C~60°C combination Audio head. (Storage temperature) Input : –8 dBm, (CENELEC standard), Operating position...

  • Page 3: Safety Check After Servicing

    • Safety Check after Servicing 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.

  • Page 4: Table Of Contents

    TABLE OF CONTENTS SECTION 1. CONTROLS AND FUNCTIONS ......................3 SECTION 2. ELECTRICAL ADJUSTMENTS 2-1. SERVO CIRCUIT ADJUSTMENT METHOD........................4 2-2. VIDEO CIRCUIT ADJUSTMENT METHODS........................5 2-3. AUDIO CIRCUIT ADJUSTMENT METHOD........................7 2-4. IF MODULE CIRCUIT ADJUSTMENT METHODS......................8 SECTION 3. CIRCUIT OPERATION PRINCIPLES 3-1. POWER CIRCUIT................................10 3-2.

  • Page 5: Section 1. Controls And Functions

    CONTROLS AND FUNCTIONS SECTION 1. FRONT & LECTURE MARCHE R.R. AV.R. EJECT STOP VIDEO G –AUDIO– D ENR/IMM ! POWER ON/OFF ^ PLAYBACK @ EJECT & REWIND/REVIEW # VIDEO INPUT * FAST FORWARD/CUE $ AUDIO(L/R) INPUT ( STOP % CHANNEL UP/DOWN SELECTION ) RECORD/OTR(ONE TOUCH RECORDING) REAR CH.H...

  • Page 6: Servo Circuit Adjustment Method

    ELECTRICAL ADJUSTMENT SECTION 2. 2-1. SERVO CIRCUIT ADJUSTMENT METHOD 1. PLAYBACK PHASE Adjustment Parts Checking Point Measuring Equipment Mode Test Tape TJ392(Video PCB) DP-2 Check Oscilloscope Play PT01 PIN ¤Ø • Connection Method Video PCB Modulator TJ392 PATH JIG PT01 TOP VIEW CH-1 OSCILLOSCOPE...

  • Page 7: Video Circuit Adjustment Methods

    2-2. VIDEO CIRCUIT ADJUSTMENTS METHODS 1. REC EQ ADJUSTMENT Adj. Location Checking Point Measuring Equipment Mode INPUT SIGNAL SECAM MAGENTA RL491 TJ401 Signal Gen, Oscilloscope STOP signal • Connection Method VIDEO PCB VIDEO SET TJ401 TJ313 RL491 SECAM MAGENTA Signal CH-1 SIGNAL OSCILLOSCOPE...
  • Page 8 2. PB EQ ADJUSTMENT Adj. Location Checking Point Measuring Equipment Mode Test Tape R492 TJ402 Signal Gen, Oscilloscope PLAY DS-1 • Connection Method VIDEO PCB TJ402 TJ313 RL492 CH-1 OSCILLOSCOPE CH-2 ICL01 TOP VIEW • Adjustment Procedure 1) Set the INPUT mode to LINE mode. 2) Playback the SECAM test tape (DS-1).

  • Page 9: Audio Circuit Adjustment Method

    2-3. AUDIO CIRCUIT ADJUSTMENT METHOD 1. AUDIO RECORD BIAS Adjustment Parts Checking Point Measuring Equipment MODE INPUT SIGNAL A/C Head PCB R292 Audio level meter No signal R01 LANDs (+), (–) • Connection Method MAIN PCB Audio LEVEL METER R292 –...

  • Page 10: If Module Circuit Adjustment Methods

    2-4. IF MODULE CIRCUIT ADJUSTMENT METHODS 1. AFT ADJUSTMENT PARTS CHECK POINT TEST EQUIPMENTS INPUT SIGNAL P102 Signal Gen. Refer to L102 PIN! Oscilloscope Power Supply following. • AFT IF MODULE PCB (TOP VIEW) L101 0.5mS/DIV 50mV/DIV(10:1) 2.5V±0.15V OSCILLOSCOPE P102 P101 #4 #3 #3#2 #1 <AFT ADJUSTMENT>...
  • Page 11 2. RF AGC ADJUSTMENT PARTS CHECK POINT TEST EQUIPMENTS INPUT SIGNAL Signal Gen. Refer to R191 "A" POINT Oscilloscope Power Supply following. • RF AGC IF MODULE PCB (TOP VIEW) 6.0V±0.2V L101 P102 P101 #4 #3 #3#2 #1 <AFT AGC ADJUSTMENT> Modulation method: ±30% AM TEST CIRCUIT fm: 15.625 KHz...

  • Page 12: Section 3. Circuit Operation Principles

    CIRCUIT OPERATION PRINCIPLES SECTION 3. 3-1. POWER CIRCUIT 1. OUT LINE The part that supply DC VOLTAGE to each circuit change AC input voltage into DC voltage. It is based on SMPS(switching mode power supply)system which is located on main pcb. SMPS module is composed of the switching circuit and the transformer of the primary part and the rectifier circuit of the secondary part.
  • Page 13 When the voltage of C813 reaches Vbe(0.7V) of Q802, Q802 is on and Q801 is off. The on-time of Q801 depends on the time constant R810, DZ801 and C813. When Q801 is off, the energy stored on LP of primary is output through a rectifying diode of secondary part.

  • Page 14: Video Circuit

    3-2. Video Circuit (The operating principle of video circuit) 1. Signal flow of the luminance system in the REC mode. To OSD Video input Video Video QV/QH buffer buffer CLAMP Sub- emphasis IH DELAY CCD IC302 fsc : 4.433619MHz MAIN EMPHA EMPHA &...
  • Page 15 2. Signal flow of the PAL colour in the record mode (5.06±4.43) Video input 4.43MHz 4.43MHz Video MAIN IMHz CONV 5.06MHz 627KHz Killer To. PREAMP 2Head: Pin & of LA7411 4Head: Pin ) of LA7416 BLOCK 2. PAL COLOR SIGNAL FLOW A recording composite video signal is fed to the AGC circuit from Pin 12 of IC301, and its output signal is passed through a BPF (Band Pass Filter) to eliminate the luminance components, and then only the colour signal is fed to the ACC (Auto Colour Controller) amplifier.
  • Page 16 Y-FM input Double Main L P F Limiter Demod De-empha Sub-deempha L P F & buffer Double HP Picture Y N R De-empha Noise Can Controller Video QV/QH IH Delay IC302 R323 TO OSD CIRCUIT R322 Q309 Butter BLOCK 3. PLAYBACK LUMINANCE SIGNAL FLOW This signal from Pin 4 of IC301 is then passed through a sub-deemphasis and Buffer and fed to Pin 5 of IC301.
  • Page 17 The signal from the PREAMP circuit is fed to Pin 38 of IC301 and then this signal is amplified by 60dB (almost 1000 times). The signal from Pin 38 of IC301 is filtered by the LPF. That is, the LPF is used to eliminate the luminance signal. The down- converted colour signal (627KHz) from the LPF is fed to the Main Converter through the ACC amplifier circuit.
  • Page 18 6. Signal flow of the SECAM colour in the playback mode 1.1MHz 1.1MHz PB Color from PREAMP 2.2MHz Limiter 4.286MHz Trap 4.3MHz 12dB Limiter SYNC GATE 4.3MHz BPF ICL02 BELL SECAM DETECTOR 2.1MHz Trap SECAM(H) SECAM:HIGH non-SECAM: LOW To. pin E of IC301 PB SECAM BLOCK 6.

  • Page 19: If Circuit Operation

    3-3. IF CIRCUIT OPERATION 1. VIDEO SIGNAL FLOW VIDEO PRE- VIDEO SOUND BUFFER MIXER DET & FILTER TRAP DE MOD TUNER LOCAL µ-COM STANDARD S/W The signal from the ANT is amplified for selectivity, to decrease image interference, and increase S/N using the RF AMP. The RF signal at the MIXER is subtracted from the LOCAL OSC frequency using the upperside band method, to change it into the IF signal;...
  • Page 20 3. SECAM AUDIO FLOW LIMITER mute PRE- AUDIO OUT O db FILTER DE MOD Standard S/W L/L' control PAL SOUND Because the SECAM TV sound system uses amplitude modulation, we need an AM-sound demodulation process. The sound IF signal passing through the SAW filter is fed to the sound IF amplifier which consists of three AC-coupled differential amplifier stages each with about 20dB gain.

  • Page 21: Audio Circuit Operation

    3-4. AUDIO CIRCUIT OPERATION 1. Signal flow of Normal audio in REC mode. Audio input AMP 4dB To A.HEAD Volume L Audio LEFT Input Selector Volume R RIGHT Buffer BLOCK A-1. Normal audio signal flow in the REC mode. The recording audio signals from IF circuit are input to the inputselector through pin 2 (left), 3 (right) of the IC201 and the input signal are selected.
  • Page 22 3. Signal flow of Hi-Fi audio in REC mode. Audio input AMP 4dB audio Volume L A.LPF N.R. clipper LEFT Input Selector audio Volume R A.LPF N.R. clipper RIGHT Buffer modem 1.4MHz 1.4MHz A.MUTE modem 1.8MHz 1.8MHz To. PREAMP circuit (BA7746FS pin input) BLOCK A-3.

  • Page 23: Section 4. Trouble Shooting Flow Chart

    TROUBLE SHOOTING FLOW CHART SECTION 4. 4-1. POWER CIRCUIT When changing the parts which are broken first, remove the power plug from the socket and then discharge the voltage across the terminals of C807 (use an external KΩ resistance). When check the primary circuit, Use the oscilloscope isolated properly (Use the isolated transformer) and connect GND to the primary GND, however It is not necessary to isolate the oscilloscope when check the secondary circuit.
  • Page 24 B. CHECKING THE SECONDARY CIRCUIT. Check DZ802 Check transformer of NO Check each output voltage output stages Check the diode of NO output stages Check the COIL,C of NO Check the P802 output stages...

  • Page 25: Pif Circuit Trouble Shooting

    4-2. PIF CIRCUIT TROUBLE SHOOTING RF output signal N.G Is video signal output Is audio signal output from P101 * pin? from P102 @ pin? A/V sw module Check QL01 Is video signal input P153 % pin? RL12, RL18 into P101 * pin? Check A/V sw circuit Is tuner voltage...

  • Page 26: Logic Circuit

    4-3. LOGIC CIRCUIT Digitron does not operate. Is +5V supplied to Is +5.8V supplied Check power circuit pin of IC701? from D713 cathod Is -24V supplied to pin of IC701? Is -24V at D607 Check D806 and anode? primary power circuit. Are -20 and -16.5V Check the connector supplied to pin and...
  • Page 27 Digitron is lit keys do not operate. Is each key pulse Check key matrix applied to pin , circuit. and of IC701? Check the pin serial of pin , ~ of IC701. 19 22...

  • Page 28: Servo-Syscon Circuit

    4-4. SERVO-SYSCON CIRCUIT PLAYback picture is not good Noise apperars although Adjust tracking. adjusting tracking. Noise appears Check and re-adjust Noise shakes up and although change the path of Deck. down on the screen? cassette tape. CTL HEAD height Adjust the HEAD Is CTL pulse output is normal and height and...
  • Page 29 Playback picture is not good. Noise appears on the Noise appears on the Check flow A. screen at the bottom screen on the whole. Connect the pin of IC601 to GND for a few of seconds. Is sw pulse supplied Check D.
  • Page 30 Auto-stop during playback. Is reel pulse applied to Check reel sensor. pin $ and % of IC601? Is D. FG applied to Check connector and pin > of IC601? D. FG circuits. Check IC601.
  • Page 31 Drum M/T loading stops. Check D606. Is motor 12V supplied? Check power ASS'Y. Is pin > D. FG of Check C155, C520, R521 IC601 supplied? and R522. Is pin D. PWM of Check IC601. IC601 supplied? Check connector and motor.
  • Page 32 Capstan M/T loading stops. Check power ASS'Y. Is motor 13V supplied? Is the input of pin ^ of Check circuit of R527, P602 2.5V ~ 3.5V? R528, R529. Is pin $ of P602 2.5V? Check R519, R520. Does pin of IC601 Check IC601.
  • Page 33 Drum M/T and capstan M/T rotate at regular speed. (IN REC MODE) Is C. sync applied to Check C. sync of video of IC601? IC and pattern. Check motor. Emergency mode when plugging (power cord) Is ever 5V applied? Check power ASS'Y. Does X601 crystal Check IC601 and X601.
  • Page 34 Cassette is not inserted. Is motor 13V supplied? Check power ASS'Y. (at pin * of P604) CAM DATA is changed Check connector. when CST IN? Check Deck part. Is 5V applied to pin ^ of Is 5V supplied at pin 110 of IC601? IC602 when CST IN? Check pattern Check IC601.
  • Page 35 Power compensation does not operate. When mains is unplugged, Check C612. is 3.6V at pin !, Y, and m of IC601? (sine) signal applied Check X602. to pin S and s of IC601? Check reset circuit Is 5V at pin [ of IC601? IC604.

  • Page 36: Audio Circuit(Normal)

    4-5. AUDIO CIRCUIT (NORMAL) A. Troubleshooting of PB mode No sound in the playback mode. Is the output at pin “, ‘ Is 12V applied to pin a Check power circuit. of IC201? of IC201? Check TV Volume! Is 5V applied to pin 3, g of IC201? Check IC601.
  • Page 37 B. Troubleshooting of REC mode No sound in the playback mode after recording Is signal input into pin Check PIF circuit @, # of IC201 in TV mode? Is signal input into pin ^, & of Check SCART jack IC201 in LINE mode? Is 5V applied to pin $ Check SYSCON of IC202?

  • Page 38: Audio Circuit(Hi-Fi)

    4-6. AUDIO CIRCUIT (Hi-Fi) A. Troubleshooting of E-E mode No sound in the E-E mode Is 12V applied to pin a of IC201? Check POWER circuit Is 5V applied to pin 3 g, of IC201? Is signal input into Check pin @, # of IC 201 PIF circuit in TV mode?
  • Page 39 B. Troubleshooting of Hi-Fi PB and REC mode No Hi-Fi Sound in playback mode Is the ENVE level of pin G Check the ICH01 of IC201 more than 120mVp-p? of PRE-AMP circuit Is A.SW PULSE input into Check pin of IC601 pin of IC201? Is 5V and clock data applied Check IC601...

  • Page 40: Video Circuit

    4-7. VIDEO CIRCUIT A. Troubleshooting of EE mode. Is the signal obtained from pin ‘ Check A/V circuit of ICL01 (A/V circuit)? Is the video signal from pin ‘ Check C316 fed to pin 2 of IC301? Is ON/OFF 5V supply to pin 3 Check ON/OFF 5V and pin t of IC301 at 5 volts? Is EE(L) supply to anode of...
  • Page 41 B. Troubleshooting of preamp in the playback mode. * ICA01:LA7416 Is the signal from heads fed to pin ! Check drum and and pin # (SP mode) or pin % and deck mechanism pin & (LP mode) of PA01? Is ON/OFF 5V from pin 5 of PA01 supply to pin 5 of Check ON/OFF 5V ICA02 at 5 volts?
  • Page 42 C. Troubleshooting of preamp circuit in the record mode. * ICA01 : LA7416 Is the signal from pin $ of P302 Check P501, P504 fed to pin ^ of PA02? and PCB pattern Is the modulating luminance signal from pin ^ of PA02 Check CA19 and pattern fed to pin 1 of ICA01? Is the down converted colour...
  • Page 43 D. Troubleshooting of luminance signal in the record mode. Is the video signal obtained Check AV circuit from pin ‘ of ICL01 (AV circuit)? Is the video signal from pin ‘ Check C316 and pattern fed to pin 2 of IC301? Is ON/OFF 5V supply to pin 3 Check ON/OFF 5V and pin t of IC301 at 5 volts?
  • Page 44 E. Troubleshooting of PAL COLOUR in the record mode. Is the video signal obtained from Check AV circuit pin ‘ of ICL01 (A/V circuit)? Is the video signal from pin ‘ of Check C316 and pattern ICL01 fed to pin 2 of IC301? Is ON/OFF 5V supply to pin 3 Check ON/OFF 5V and pin t of IC301 at 5 volts?
  • Page 45 F. Troubleshooting of SECAM colour in the record mode. Is video signal obtained from pin ! Check A/V circuit of ICL01 through pin ) of P303? Is ON/OFF 5V from pin * of Check ON/OFF 5V P303 supply to pin ‘ and pin + of ICL01 at 5 volts? Is EE (H) from pin &...
  • Page 46 G. Troubleshooting of luminance in the playback mode. Is Y-FM signal from PREAMP Check PREAMP circuit fed to pin @ of P302? Is ON/OFF 5V supply to pin 3 Check ON/OFF 5V and pin t of IC301 at 5 volts? Is EE (L) supply to anode of Check EE (L) D302 at 5 volts?
  • Page 47 H. Troubleshooting of PAL colour in the Playback mode. Is the signal from PREAMP circuit Check PREAMP circuit fed to pin ^ of P302? Is the PAL colour signal from pin ^ of P302 fed to pin u of Check AMP circuit IC301 through AMP circuit? * The AMP circuit consists of Q313, R347, R346, R348...
  • Page 48 I. Troubleshooting of SECAM colour in the playback mode. Is signal from PREAMP circuit Check PREAMP circuit fed to pin ^ of P302? Is signal from pin ^ of P302 Check PB AMP and fed to pin 8 of ICL01 through 1.1MHz BPF PB AMP and 1.1 MHz BPF? Is ON/OFF 5V from pin * of P303...

  • Page 49: Section 5. Waveforms On Video Circuit

    WAVEFORMS ON VIDEO CIRCUIT SECTION 5. 5-1. WAVEFORMS IN THE EE MODE (Color bar input) ! Pin 12 of IC301 @ Pin 12 of IC301 # Pin 16 of IC301 $ Pin 16 of IC301 (SECAM color bar input: (PAL color bar input: (SECAM color bar (PAL color bar output: 1.0Vp-p)
  • Page 50 5-3. WAVEFORMS OF THE PAL COLOR IN THE RECORD MODE (Color bar input) 7 Pin 12 of IC301 8 Pin 23 and 24 of IC301 9 Pin 26 of IC301 (PAL color input: (450mVp-p) (400mVp-p) 1.0Vp-p) 0 UP: Pin 14 of IC301 “...
  • Page 51 5-5. WAVEFORMS OF THE LUMINANCE IN THE PB MODE (DP-1 test tape) E UP: Pin 17 of IC301 e Pin 4 of IC301 (0.5Vp-p) R Pin 5 of IC301 (0.5Vp-p) (color rotary) DOWN: Pin 1 of IC301 (ENVE: 0.8Vp-P) T Pin 18 of IC301 t Pin 20 of IC301 r Pin 16 of IC301 (300mVp-p)
  • Page 52 5-7. WAVEFORM OF THE SECAM COLOR IN THE PB MODE (DS-1 test tape) O UP: Pin 17 of IC301 o Pin 6 of ICL01 P Pin 8 of ICL01 (300mVp-p) (Color rotary) (170mVp-p) DOWN: Pin 6 of P302 (PB color ENVE): 100mVpp { UP: Pin 14 of IC301 [ UP: Pin 14 of IC301...

  • Page 53: Section 6. Μ-Com Port

    µ-COM PORT SECTION 6. NAME PORT IN/OUT ASSIGNMENT ACTION • Normal operating mode: 5V±10% • Low speed mode: 2.7V min-5.5V max REMOCON P87/GEN 1 INPUT REMOCON DATE INPUT PORT PULSE P86/GEN 0 S/REEL P85/INT 1 INPUT SUPPLY REEL PULSE INPUT PULSE T/REEL P84/INT 0...
  • Page 54 NAME PORT IN/OUT ASSIGNMENT ACTION A.SW P65/RTP13 OUTPUT To select R/L Channel (Audio HEAD) PULSE When LP-CUE/REV/STILL/SLOW mode, PULSE LP TRICK P64/RTP13 OUTPUT ** STILL/SLOW: HIGH /HIGH H. A SW ** PB: LOW ** CUE/REV: PULSE P63/RTP11 P62/RTP10 SCL NICAM P61/RTP9 OUTPUT NICAM/Hi-Fi/PDC CONTROL: Serial clock...
  • Page 55 NAME PORT IN/OUT ASSIGNMENT ACTION RESET RESET INPUT INPUT MAIN CLOCK: 16MHz OSC IN Xout Xout OUTPUT MAIN CLOCK: 16MHz OSC OUT When POWER FALE mode, to select clock. CLK/SEL CLK/SEL INPUT ** LOW: Xcin (32.768KHz) ** HIGH: Xin (16MHz) Xcin Xcin INPUT...
  • Page 56 NAME PORT IN/OUT ASSIGNMENT ACTION VFD DATA OUT P137/TXD1 OUTPUT VFD SERIAL DATA OUTPUT SERIAL VFD DATA IN P136/RXD1 INPUT VFD SERIAL DATA INPUT SERIAL VFD CLK P135/CLK1 OUTPUT VFD SERIAL CLOCK OUTPUT SERIAL VFD STB P134/CTS1/RTS1 OUTPUT VFD STROBE OUTPUT OSD DATA OUT P133/TXDO OUTPUT...
  • Page 57 NAME PORT IN/OUT ASSIGNMENT ACTION AMP Vss AMP Vss AMP GND A. Vcc AVcc ANALOG Vcc VREF VREF VREF=2.5V A GND ANALOG GND CAM A P117 INPUT CAM DATA TABLE D CAM NAME CAM SUMBER EJECT CAM 0 CAM B P116 INPUT STAND...
  • Page 58 NAME PORT IN/OUT ASSIGNMENT ACTION DRUM SEL. P104/AN4 INPUT To detect the kinds of HEADS to be used. HEAD A/D VALUE TABLE (HEAD WIDTH) TYP. 4.6875 NT4-B 40 58 30 32 4.375 4.0625 NT4-A 48 58 26 26 3.75 3.4375 PAL4-B 49 49 25 25 SECAM 20 20 11.5...

  • Page 59: Section 7. Voltage Charts

    VOLTAGE CHARTS SECTION 7. Voltage Charts 1. IC101 (TDA9814T) MODE MODE SECAM REMARKS SECAM REMARKS PIN NO PIN NO Conditions Conditions : EE MODE : EE MODE X: Variable 2. ICN01 (SAA7383ZP) MODE MODE SECAM REMARKS SECAM REMARKS PIN NO PIN NO Conditions Conditions...
  • Page 60 3. IC701 (M34240M2-XXXSP) MODE MODE PIN NO PIN NO -7.8 -17.2 -14.1 -17.1...
  • Page 61 4. IC201 (HI-FI AUDIO, TDA9614H) MODE MODE PIN NO PIN NO PULSE PULSE HI-FI: 5 NOR: 0...
  • Page 62 5. ICS01 (12BKF4P4ML) MODE MODE SECAM REMARKS SECAM REMARKS PIN NO PIN NO Conditions Conditions : No signal : No signal 8, 9, 10: PULSE 6. IC301 (LA7437) MODE MODE SECAM REMARKS SECAM REMARKS PIN NO PIN NO Conditions Conditions : PAL MODE : PAL MODE...
  • Page 63 7. IC302 (LC89970) MODE MODE SECAM REMARKS SECAM REMARKS PIN NO PIN NO Conditions Conditions : PAL MODE : PAL MODE 8. IC303 (LA7356) MODE SECAM REMARKS PIN NO Conditions : PAL MODE 9. ICL01 (BA7207S) MODE MODE SECAM REMARKS SECAM REMARKS PIN NO...
  • Page 64 10. ICL02 (LA7356) MODE SECAM REMARKS PIN NO Conditions : SECAM MODE 11. ICV01 (SDA5649) MODE MODE SECAM REMARKS SECAM REMARKS PIN NO PIN NO Conditions Conditions : EE MODE : EE MODE 12. MAIN/OSD PART TR PORTS EMITTER COLLECTOR BASE LOC.
  • Page 65 13. SECAM PART TR (SECAM MODE) PORTS EMITTER COLLECTOR BASE LOC. QL401 QL402 QL403 QL407 QL408 QL409 QL413 QL414 QL415 14. VIDEO PART TR (PAL MODE) PORTS EMITTER COLLECTOR BASE LOC. QL404 QL405 QL406 QL410 QL411 QL412 Q301 Q302 Q303 Q304 Q305 Q306...
  • Page 66 16. IF MODULE PART TR (PAL MODE) PORTS EMITTER COLLECTOR BASE LOC. SECAM SECAM SECAM Q101 Q102 Q103 Q104 Q105* Q106 *: Variable 17. AUDIO PART TR PORTS EMITTER COLLECTOR BASE LOC. Q231 Q232 11.7 Q233 11.9 11.9 11.2 Q234 11.9 18.
  • Page 67 20. IC801 (LTV817-B) MODE POWER POWER REMARKS PIN NO 5.78 Conditions : EE MODE 4.68 0.05 0.36 3.26 2.64 21. IC802 (KA431) MODE POWER POWER REMARKS PIN NO Conditions : EE MODE 4.71 4.68 22. POWER PART TR PORTS EMITTER COLLECTOR BASE LOC.

  • Page 68: Section 8. Circuit Diagram

    CIRCUIT DIAGRAM SECTION 8. 8-1. CONNECTION DIAGRAM...

  • Page 69: Power Circuit

    8-2. POWER CIRCUIT...

  • Page 70: Logic Circuit

    8-3. LOGIC CIRCUIT...

  • Page 71: Main Circuit

    8-4. MAIN CIRCUIT...

  • Page 72: Video Circuit

    8-5. VIDEO CIRCUIT...

  • Page 73: Head Amp Circuit

    8-6. HEAD AMP CIRCUIT...

  • Page 74: Secam Circuit

    8-7. SECAM CIRCUIT...

  • Page 75: Hi-Fi Audio Circuit

    8-8. Hi-Fi AUDIO CIRCUIT...

  • Page 76: Pif Circuit

    8-9. PIF CIRCUIT...

  • Page 77: If Module Circuit

    8-10. IF MODULE CIRCUIT...

  • Page 78: A/V & Scart Circuit

    8-11. A/V & SCART CIRCUIT...

  • Page 79: Osd Circuit Pdc Circuit

    8-12. OSD CIRCUIT PDC CIRCUIT...

  • Page 80: Remocon Circuit (Vr-3Bc)

    8-13. REMOCON CIRCUIT...

  • Page 81: Section 9. Compoments Location Guide On Pcb Bottom View 9-1. Pcb Main

    DISASSEMBLY SECTION 10. 10-1. PACKING ASS'Y No. Location Part Name Part No. Q'ty Description Remark C001 PAD RIGHT/LEFT 97P4919600 C002 POLY BAG FOR SET 97P4803100 P.E FOAM SET TOTAL ASS'Y C003 BOX CARTON 97P5039900 EX300XSCP150XEX300 D002 CABLE CONNECTOR 97P880RS15 SECAM 1.5M D004 BATTERY 486A716200...

  • Page 82: Pcb Power

    SUS 304 CSP TO. 15 SCREW TAPPTITE 7174300811 TT2 RND 3X8 MFZN PCB AV FIX DAMPER 4857933800 DP120 SCREW TAPPTITE 7174300811 TT2 TAN 3X8 MFZN DAMPER FIX DOOR F/L 97P1815300 SPRING F/L DOOR 97P3033600 SWPB 5088N BADGE DAEWOO 97P1504300 AL(GOLD)

  • Page 83: Pcb If Module

    10-3. SET TOTAL ASSEMBLY No. Location Part Name Part No. Q'ty Description CHASSIS MAIN 97P0608800 HIPS (HB) PANEL FRONT AS 97PD130800 DV-K882D PCB LOGIC I AS 97PD160400 DV-K882S PCB MAIN AS 97PD160200 DV-K882S DECK TOTAL AS 97PB0976D- DV-K882S COVER TOP 97P0460800 SECC T0.6+PVC T0.15 COVER BOTTOM...

  • Page 84: Pcb Logic I

    10-4. INSTRUMENT DISASSEMBLY 1. Top Cover Removal (Fig. 1) 1. Remove five (5) screws holding the top cover. 2. Carefully lift the back of the top cover and slide to the rear to remove. REMOVE TWO SCREWS REMOVE REMOVE SCREW TWO SCREWS (Fig.
  • Page 85 2. Front Panel Removal (Fig. 2) 1. Remove the top cover. 2. Remove two (2) screws securing front panel. 3. Remove the F/L bracket. 4. Release seven (7) tabs holding the front panel. 5. Remove the front panel. 6. disconnect the connector. (Fig.

  • Page 86: Front Panel Assembly

    3. Bottom Cover Removal (Fig. 3) 1. Remove the top cover and front panel. 2. Remove three (3) screws. 3. Release four (4) tabs and lift out the bottom cover. REMOVE THREE SCREWS REMOVE TWO TABS REMOVE TWO TABS (Fig. 3)
  • Page 87 4. F/L Door Removal (Fig. 4) 1. Open the F/L door 90°. 2. Remove the F/L door in the direction of arrow. REMOVE F/L DOOR (Fig. 4)

  • Page 88: Instrument Disassembly

    5. PCB Logic AS Removal (Fig. 5) 1. Remove the top cover, bottom cover and front panel. 2. Release four (4) tabs holding the PCB Logic AS. 3. Tilt PCB Logic AS forward to remove in the direction of arrow. RELEASE TWO TABS RELEASE...
  • Page 89 6. PCB VIDEO AS/PCB SMPS AS Removal (Fig. 6) 1. Remove the top cover, bottom cover and front panel. 2. Remove three (3) screws. 3. Remove the PCB SMPS AS in the direction of arrow. 4. Release four (4) tabs and lift out the BRKT PCB in the direction of arrow. 5.
  • Page 90 7. DECK AS/ PCB HEAD AMP AS Removal (Fig. 7) 1. Remove the top cover, bottom cover and front panel. 2. Remove five (5) screws. 3. Disconnect the connector and the FPC. 4. Pull out the DECK AS in the direction of arrow. (Fig.
  • Page 91 8. PCB MAIN AS Removal (Fig. 8) 1. Remove the top cover, bottom cover and front panel. 2. Remove two (2) screws. 3. Release two (2) tabs and lift out the main PCB in the direction of the arrow. REMOVE TWO SCREWS PCB MAIN ASS'Y RELEASE...
  • Page 92 ELECTRICAL PART LIST SECTION 11. Caution : In this Service 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) 11-1.
  • Page 93 11-1-2. RESISTER CODING 1. Normal Value Distance Type Distance (Same as Fixed (Same As (Same as Fixed Code Type Code Voltage Resistor) Fixed Resistor) Resistor) Aluminum 6.3V Barrier Layer Shape Ceramic Electrolytic Characteristic Line Across Mylar Styrol Metalized Polyester Mica 100V Tantal 125V...
  • Page 94 PCB IF MODULE AS REF. PART CODE PART NAME PART DESCRIPTION REF. PART CODE PART NAME PART DESCRIPTION C101 HCFK103ZCA C CHIP CERA 50V Y5V 0.01MF Z 2012 CN19 HCFK104ZCA C CHIP CERA 50V Y5V 0.1MF Z 2012 C102 HCFK103ZCA C CHIP CERA 50V Y5V 0.01MF Z 2012 CN20...
  • Page 95 REF. PART CODE PART NAME PART DESCRIPTION REF. PART CODE PART NAME PART DESCRIPTION R101 HRFT221JCA R CHIP 1/10 220 OHM J 2012 R191 RV5426203M R SEMI FIXED H20K-5X3-6Y-PC-MS R102 HRFT221JCA R CHIP 1/10 220 OHM J 2012 RJ001 HRF8000-EA R CHIP 1/8 0 OHM 3216 R103...

  • Page 96: Section 11. Electrical Part List

    PCB HEAD AMP AS REF. PART CODE PART NAME PART DESCRIPTION REF. PART CODE PART NAME PART DESCRIPTION CA01 HCFK103ZCA C CHIP CERA 50V Y5V 0.01MF Z 2012 CH11 HCFK473ZCA C CHIP CERA 50V Y5V 0.047MF Z 2012 CA02 HCBK102KCA C CHIP CERA 50V X7R 1000PF K 2012 CH12...
  • Page 97 REF. PART CODE PART NAME PART DESCRIPTION REF. PART CODE PART NAME PART DESCRIPTION RA24 HRFT152JCA R CHIP 1/10 1.5K OHM J 2012 RH09 HRFT182JCA R CHIP 1/10 1.8K OHM J 2012 RH01 HRFT561JCA R CHIP 1/10 560 OHM J 2012 RH10 HRFT224JCA R CHIP...
  • Page 98 PCB MAIN AS REF. PART CODE PART NAME PART DESCRIPTION REF. PART CODE PART NAME PART DESCRIPTION C150 HCFK103ZCA C CHIP CERA 50V Y5V 0.01MF Z 2012 C216 CEXF1C470A C ELECTRO 16V RSM 47MF (5X7) TP C151 HCFK103ZCA C CHIP CERA 50V Y5V 0.01MF Z 2012 C218 HCLK201JCA...
  • Page 99 REF. PART CODE PART NAME PART DESCRIPTION REF. PART CODE PART NAME PART DESCRIPTION C525 CEXF1C101A C ELECTRO 16V RSM 100MF (6.3X7) TP CK08 CEXF1C100A C ELECTRO 16V RSM 10MF 5X7 C526 HCLK201JCA C CHIP CERA 50V SL 200PF J 2012 CK09 HCBH104KCA C CHIP CERA...
  • Page 100 REF. PART CODE PART NAME PART DESCRIPTION REF. PART CODE PART NAME PART DESCRIPTION CV03 HCFK103ZCA C CHIP CERA 50V Y5V 0.01MF Z 2012 L230 5CPX101J-- COIL PEAKING PL 100UH J (TAPPING) CV04 CEXF1C470A C ELECTRO 16V RSM 47MF (5X7) TP L601 5PB13857-- COIL BEAD...
  • Page 101 REF. PART CODE PART NAME PART DESCRIPTION REF. PART CODE PART NAME PART DESCRIPTION Q232 TZTC3202Y- KTC3202Y (AUTO)(1959Y) R204 HRFT104JCA R CHIP 1/10 100K OHM J 2012 Q233 TZTA1273Y- KTA1273Y(966Y) R205 HRFT335JCA R CHIP 1/10 3.3M J 2012 Q234 TZSR1004-- KSR1004 (AUTO) R206 HRFT471JCA...
  • Page 102 REF. PART CODE PART NAME PART DESCRIPTION REF. PART CODE PART NAME PART DESCRIPTION R523 RD-AZ513J- R CARBON FILM 1/6 51K OHM J R610 HRFT270JCA R CHIP 1/10 27 OHM J 2012 R524 RD-AZ103J- R CARBON FILM 1/6 10K OHM J R612 RD-AZ222J- R CARBON FILM...
  • Page 103 REF. PART CODE PART NAME PART DESCRIPTION REF. PART CODE PART NAME PART DESCRIPTION RJ008 HRF8000-EA R CHIP 1/8 0 OHM 3216 RS05 HRFT202JCA R CHIP 1/10 2K OHM J 2012 RJ009 HRF8000-EA R CHIP 1/8 0 OHM 3216 RS06 HRFT121JCA R CHIP 1/10 120 OHM J 2012...
  • Page 104 PCB VIDEO AS REF. PART CODE PART NAME PART DESCRIPTION REF. PART CODE PART NAME PART DESCRIPTION C342 CCXF1H103Z C CERA 50V F 0.01MF Z (TAPPING) C301 CXSL1H470J C CERA 50V SL 47PF J C343 CCXF1H103Z C CERA 50V F 0.01MF Z (TAPPING) C302 CEXF1H109V C ELECTRO...
  • Page 105 REF. PART CODE PART NAME PART DESCRIPTION REF. PART CODE PART NAME PART DESCRIPTION CL410 CBXF1H104Z C CERA SEMI 50V F 0.1MF Z (TAPPING) IC302 1LC89970-- IC VIDEO LC89970 PAL CCD CL411 CCXF1H103Z C CERA 50V F 0.01MF Z (TAPPING) IC303 1LA7356--- IC VIDEO...
  • Page 106 REF. PART CODE PART NAME PART-DESC REF. PART CODE PART NAME PART-DESC R330 RD-AZ103J- R CARBON FILM 1/6 10K OHM J QL402 TZTA1266Y- KTA1266Y- (AUTO)(1015Y) R331 RD-AZ103J- R CARBON FILM 1/6 10K OHM J QL403 TZTC3198Y- KTC3198Y-(1815Y) (AUTO) R333 RD-AZ681J- R CARBON FILM 1/6 680 OHM J QL404...
  • Page 107 REF. PART CODE PART NAME PART-DESC REF. PART CODE PART NAME PART-DESC RL412 RD-AZ102J- R CARBON FILM 1/6 1K OHM J RL431 RD-AZ471J- R CARBON FILM 1/6 470 OHM J RL413 RD-AZ102J- R CARBON FILM 1/6 1K OHM J RL432 RD-AZ331J- R CARBON FILM 1/6 330 OHM J...
  • Page 108 REF. PART CODE PART NAME PART-DESC REF. PART CODE PART NAME PART-DESC DL14 DZZ5R6BM-- DIODE ZENER DZ 5.6BM (AUTO) QL05 TZSR2001-- KSR2001 (AUTO) DL15 DZZ5R6BM-- DIODE ZENER DZ 5.6BM (AUTO) RL01 RD-AZ103J- R CARBON FILM 1/6 10K OHM J DL16 DZZ5R6BM-- DIODE ZENER DZ 5.6BM (AUTO)
  • Page 109 PCB POWER AS REF. PART CODE PART NAME PART-DESC REF. PART CODE PART NAME PART-DESC 4859901111 CORD POWER KKP-419C KLCE-2F (2.1ME) F801B 97P460170P CLIP FUSE PFC5000-0702 47P1503600 CLAMP WIRE A NYLON 66 IC801 1LTV817B-- IC PHOTO COUPLER LTV817-B 8-UV2500BK TUBE VINYL AWG1 D=25 BK IC802 1TL431AN--...

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