Daewoo DF-4500 Service Manual

Dvdr + vcr combi

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S /M No. : DF Q75D2001

S ervic e Manual

DVDR + VCR Combi

MODEL: DF-4500(S/P)

DF-4501(S/P)

DFX-4502(S/P)

DFX-4505(S/P)

JAN. 2006

Table of Contents

Troubleshooting

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Summary of Contents for Daewoo DF-4500

Page 1 S /M No. : DF Q75D2001 S ervic e Manual DVDR + VCR Combi MODEL: DF-4500(S/P) DF-4501(S/P) DFX-4502(S/P) DFX-4505(S/P) JAN. 2006...
Page 2: Table Of Contents
CONTENTS SPECIFICATIONS .......................2 TROUBLE SHOOTING........................3 WAVEFORMS ..........................24 CIRCUIT DIAGRAM........................27 PCB CIRCUIT BOARD........................45 INSTRUMENT DISASSEMBLY .....................48 ELECTRICAL PARTSLIST......................49...
Page 3: Specifications
SPECIFICATIONS General Power requirements 200–240V~, 50/60 Hz Power consumption Dimensions (approx.) 430 x 92 x 312 mm (w x h x d) Mass (approx.) 4.96 kg Operating temperature 41°F to 95°F (5°C to 35°C) Operating humidity 5% to 90% Signal system PAL Colour Recording Recording formats...
Page 4: Troubleshooting
TROUBLESHOOTING 1. POWER CIRCUIT 1. No output voltage of POWER CIRCUIT get input, DC 200~240 Valtage...
Page 5 TROUBLESHOOTING 2. SYSTEM CIRCUIT...
Page 6 TROUBLESHOOTING P303 Check REMOCON_IN (Pin2)
Page 7 TROUBLESHOOTING B. Digital Board(Mpeg)
Page 8 TROUBLESHOOTING C-1. Bad playback quality (1) Noise appears on the playback screen. Is noise diminished by tracking Re-adjust PATH. adjustment. Noise band is trembled up and Noise appears on the screen even Re-adjust PATH. down? though changing tape. Is there CTL pulse at IC501 Re-adjust the height of AC HEAD.
Page 9 TROUBLESHOOTING D. No broadcasting signal received No broadcasting signal received Is the output at IC501 pin# Check IC 501. 61(CLK), 60 (DATA) normal? Is SIF,Video output at TMI(RF101) Check TMI (RF101) Block. pin#16,19 normal? Is Video Signal input at IC501 Check IC 501.
Page 10 TROUBLESHOOTING E. No CASSETTE Loading Cassette tape isn’t inserted. Is 5V voltage obtained at Loading Check at EVER 14V parts IC501 pin#63? Check D825 Is 14V voltage obtained at Check D825 and POWER circuit. Capstan Motor P501 pin#2? Connect Capstan and Loading Motor. Is 13V voltage obtained at Each Check connector and Capstan Motor.
Page 11 TROUBLESHOOTING G. DRUM Motor stops DRUM Motor stops. Is 14V voltage obtained at P501 Check EVER 14V pin#8? (D825). Is DRUM PWM fit to IC 501 Check DRUM PG/FG pin#76? (IC 501 pin# 90). Is 2.6V voltage obtained at Check R534,R535,C519,C520. P501 pin#12? Check Capstan Motor and DRUM Motor.
Page 12: Troubleshooting
TROUBLESHOOTING 3. VIDEO circuit A. EE screen doesn’t appear EE MODE Picture NG Is Video signal input at Check IF and SCART JACK. IC301 pin#48,50,52,54? Is 5V supplied at Check POWER circuit. pin#42,55,72,91of IC301? Check IC501 Is C.S, DATA, CLOCK signal pin #58,71,72 input pin#67,68,69 of IC301? Check IC301...
Page 13 TROUBLESHOOTING B. Playback picture doesn’t appear 1) No VCR Playback Picture PB video signal missing. Is Envelope output from IC301 Is 5V supplied at IC301 pin#91? Check POWER 5V. pin#79? Is SW Pulse input at IC301 Check IC501 pin#18. pin#70? Clean head or Replace head.
Page 14 TROUBLESHOOTING 2) No DVD Playback Picture 2)No DVD Playback Picture Check RC54,(Digital board) Check R385, R386,R387,R400,R404(Analog board)
Page 15 TROUBLESHOOTING C. No Recording 1) VCR Part Record video signal poor. Check EE MODE. Is luminance and color signal Is signal input into IC301 output from IC301 pin#78? pin# 48,50,52,54,56? Check POWER circuit. Is +5V supplied at IC301 pin#91? Check IC501 pin#1. Is IC301 pin#80 REC(H) HIGH? Is VIDEO SW Pulse input at IC301 Check IC501 pin#18.
Page 16 TROUBLESHOOTING 2) DVD Part DVD is not recording Check RC54.(Digital board) Check R385, R386, R387, R400, R404(Analog board)
Page 17 TROUBLESHOOTING 4. AUDIO (Hi-Fi MODEL) A. No sound in E-E mode a. RF E-E No sound in RF E-E mode Is 5V obtained at IC051 pin#1? Check Power circuit. Is there SIF signal at IC051 pin#2 Check RF101. in RF mode? Is there SIF signal out at IC051 Check IC051.
Page 18 TROUBLESHOOTING b. AV1 E-E No sound in AV1 E-E mode. Is 12V obtained at IC251 pin#34? Check POWER circuit. Is 5V obtained at IC251 pin#40? Check Input AV1 JACK Is Audio signal at IC251 pin#6, 7? Is Audio signal output at IC251 Are CLK and DATA obtained at Replace IC251.
Page 19 TROUBLESHOOTING c. AV2 E-E No sound in AV2 E-E mode. Is 12V obtained at IC251 pin#34? Check POWER circuit. Is 5V obtained at IC251 pin#40? Check Input AV2 JACK Is Audio signal at IC251 pin#8, 9? Is Audio signal output at IC251 Are CLK and DATA obtained at Replace IC251.
Page 20 TROUBLESHOOTING d. FRONT E-E No sound in FRONT E-E mode. Is 12V obtained at IC251 pin#34? Check POWER circuit. Is 5V obtained at IC251 pin#40? Is Audio signal at IC251 Check Input FRONT JACK pin#10,11? Is Audio signal output at IC251 Are CLK and DATA obtained at Replace IC251.
Page 21 TROUBLESHOOTING e. No sound in DVD Play mode and No VCR Sound(Digital Board) f. No Sound in E-E Mode(Digital Board)
Page 22 TROUBLESHOOTING g. No NORMAL AUDIO playback in record/playback mode(Check in REC mode) No Normal Audio playback in record/playback mode Check Input SCART JACK. Are there Audio signal at IC251 Check Input Front JACK. pin#2~11? Check ICD02(DVD) Is there recording signal at Check IC251.
Page 23 TROUBLESHOOTING h. No Hi-Fi Playback audio(PLAY MODE) Is 12V obtained at IC251 pin#34? Check POWER circuit. Is 5V obtained at IC251 pin#40? Check A.SW at IC501 Is Audio signal at IC251 pin#41? pin#19. Is Audio signal output at IC251 Are CLK and DATA obtained at Replace IC251.
Page 24 TROUBLESHOOTING i. No Hi-Fi playback in record/playback mode (REC MODE) Check input SCART JACK. Are there Audio signal Check input front jack. at IC251 pin#2~11? Check ICD02(DVD). Is FM OSC signal at IC251 Replace IC251 pin#36? Is FM OSC signal at P401 pin#2? Replace DRUM.
Page 25: Waveforms
WAVEFORMS 1. VIDEO (IC301-70) 5Vp-p (IC301-70)5Vp-p (IC301-46) 520mVp-p (IC301-46) 520mVp-p 1V/2msec/cm 1V/2msec/cm 200mV/5usec/cm 200mV/5usec/cm PLAY PLAY (IC301-43) 520mVp-p (IC301-43) 520mVp-p (IC301-21) 600mVp-p (IC301-21) 350mVp-p 100mV/5usec 100mV/5usec 200mV/2msec/cm 200mV/2msec/cm PLAY PLAY(SP) VIDEO SW TRIG PLAY(EP) VIDEO SW TRIG (IC301-67) 4.6Vp-p (IC301-67) 4.6Vp-p (IC301-65) 2.2Vp-p (IC301-65) 2.2Vp-p 2V/10usec/cm...
Page 26 2. AUDIO 2-1 AUDIO(Normal) (IC301-15) 100mVp-p (IC301-11) 1.5Vp-p (IC301-100) 2.3Vp-p (IC301-8) 120mVp-p 20mV/0.5msec/cm 0.5V/0.5msec/cm 0.5V/0.5msec/cm 50mV/0.5msec/cm PLAY (P202-1) 75Vp-p 10V/20µsec/cm 2-2 AUDIO(Hi-Fi) (IC251-2) 80mVp-p (IC251-24) 200mVp-p (IC251-34) 1.4Vp-p (IC251-32) 200mVp-p 20mV/0.5msec 50mV/0.5msec 0.5V/1msec 50mV/0.5msec EE/REC/PLAY EE/REC EE/REC (IC251-16) 1.4Vp-p 0.5V/0.5msec EE/REC...
Page 27 WAVEFORMS 3. SERVO/SYSCON “ (IC501-18) 5Vp-p (IC501-77) 5Vp-p (IC501-76) 5Vp-p (IC501-94) 3Vp-p 2V/5msec/cm 2V/5µsec/cm 2V/5µsec/cm 1V/5msec/cm REC/PLAY REC/PLAY REC/PLAY ‘ (IC501-97) 4.4Vp-p (IC501-90)25Vp-p&5Vp-p (IC501-87) 2.5Vp-p (IC501-38) 2.6Vp-p 1V/5msec/cm 1V/5msec/cm 1V/0.2msec/cm 0.5V/0.1µsec/cm PLAY REC/PLAY REC/PLAY REC/PLAY...
Page 28: Circuit Diagram
CIRCUIT DIAGRAM 1. SERVO & SYSCON SCHEMATIC DIAGRAM(VE1.0 PAL RW COMBO)
Page 29 CIRCUIT DIAGRAM 2. AV IC SCHEMATIC DIAGRAM(VE1.0 PAL RW COMBO)
Page 30 CIRCUIT DIAGRAM 3. Hi-Fi & SW & IN OUT CIRCUIT SCHEMATIC DIAGRAM(VE1.0 PAL RW COMBO)
Page 31 CIRCUIT DIAGRAM 4. ADC/DAC/VIDEO AMP. IC SCHEMATIC DIAGRAM(VE1.0 PAL RW COMBO)
Page 32 CIRCUIT DIAGRAM 5. FRONT PART SCHEMATIC DIAGRAM(VE1.0 PAL RW COMBO)
Page 33 CIRCUIT DIAGRAM 6. TUNER, NICAM SCHEMATIC DIAGRAM(VE1.0 PAL RW COMBO)
Page 34 CIRCUIT DIAGRAM 7. POWER SUPPLY SCHEMATIC DIAGRAM...
Page 35 B.Y.Choi 4 Team 4 Team 4 Team REV NO. REV NO. REV NO. SHEET SHEET SHEET A1 : POWER A1 : POWER A1 : POWER DAEWOO ELECTRONICS Digital Video Lab. DAEWOO ELECTRONICS Digital Video Lab. DAEWOO ELECTRONICS Digital Video Lab.
Page 36 4 Team 4 Team REV NO. REV NO. REV NO. SHEET SHEET SHEET +3V3_STBY DAEWOO ELECTRONICS Digital Video Lab. DAEWOO ELECTRONICS Digital Video Lab. DAEWOO ELECTRONICS Digital Video Lab. A2. MT8105B LQFP 256 A2. MT8105B LQFP 256 A2. MT8105B LQFP 256...
Page 37 REV NO. REV NO. SHEET SHEET SHEET DAEWOO ELECTRONICS Digital Video Lab. DAEWOO ELECTRONICS Digital Video Lab. DAEWOO ELECTRONICS Digital Video Lab. A3. SDRAM & FLASH & EEPROM A3. SDRAM & FLASH & EEPROM A3. SDRAM & FLASH & EEPROM...
Page 38 4 Team 4 Team REV NO. REV NO. REV NO. SHEET SHEET SHEET A4. CONNECTOR & IDE A4. CONNECTOR & IDE A4. CONNECTOR & IDE DAEWOO ELECTRONICS Digital Video Lab. DAEWOO ELECTRONICS Digital Video Lab. DAEWOO ELECTRONICS Digital Video Lab.
Page 39 S.D.Park B.Y.Choi B.Y.Choi B.Y.Choi 4 Team 4 Team 4 Team REV NO. REV NO. REV NO. SHEET SHEET SHEET A5. 1394 A5. 1394 A5. 1394 DAEWOO ELECTRONICS Digital Video Lab. DAEWOO ELECTRONICS Digital Video Lab. DAEWOO ELECTRONICS Digital Video Lab.
Page 40 S.D.Park B.Y.Choi B.Y.Choi B.Y.Choi 4 Team 4 Team 4 Team REV NO. REV NO. REV NO. SHEET SHEET SHEET DAEWOO ELECTRONICS Digital Video Lab. DAEWOO ELECTRONICS Digital Video Lab. DAEWOO ELECTRONICS Digital Video Lab. A5. 1394 A5. 1394 A5. 1394...
Page 41 S.D.Park B.Y.Choi B.Y.Choi B.Y.Choi 4 Team 4 Team 4 Team REV NO. REV NO. REV NO. SHEET SHEET SHEET DAEWOO ELECTRONICS Digital Video Lab. DAEWOO ELECTRONICS Digital Video Lab. DAEWOO ELECTRONICS Digital Video Lab. B1. Index B1. Index B1. Index...
Page 42 [ 9 ] RD[0..15] 4 Team 4 Team 4 Team REV NO. REV NO. REV NO. SHEET SHEET SHEET B2. MT1818E B2. MT1818E B2. MT1818E DAEWOO ELECTRONICS Digital Video Lab. DAEWOO ELECTRONICS Digital Video Lab. DAEWOO ELECTRONICS Digital Video Lab.
Page 43 REV NO. REV NO. REV NO. SHEET SHEET SHEET RF70 : NC RF69 : 0 ohm DAEWOO ELECTRONICS Digital Video Lab. DAEWOO ELECTRONICS Digital Video Lab. DAEWOO ELECTRONICS Digital Video Lab. B3. SDRAM&FLASH ROM B3. SDRAM&FLASH ROM B3. SDRAM&FLASH ROM...
Page 44 REV NO. REV NO. REV NO. SHEET SHEET SHEET HEADER 50 SMD0.5 TOP HEADER 50 SMD0.5 TOP B4. MT1816E&PUH B4. MT1816E&PUH B4. MT1816E&PUH DAEWOO ELECTRONICS Digital Video Lab. DAEWOO ELECTRONICS Digital Video Lab. DAEWOO ELECTRONICS Digital Video Lab. H50S/P0.5/A H50S/P0.5/A...
Page 45 B.Y.Choi 4 Team 4 Team 4 Team REV NO. REV NO. REV NO. SHEET SHEET SHEET DAEWOO ELECTRONICS Digital Video Lab. DAEWOO ELECTRONICS Digital Video Lab. DAEWOO ELECTRONICS Digital Video Lab. B5. MOTOR DRIVER B5. MOTOR DRIVER B5. MOTOR DRIVER...
Page 46: Pcb Circuit Board
PCB CIRCUIT BOARD 1. MAIN (Analog board) PCB...
Page 47 PCB CIRCUIT BOARD 2. POWER PCB...
Page 48 PCB CIRCUIT BOARD 3. Mpeg(Digital board)PCB...
Page 49: Instrument Disassembly
INSTRUMENT DISASSEMBLY PLATE EARTH AV 97P0997600 COVER BOTTOM 97P0487004 SCREW TAPPTITE 7173300812 TT2 BIN 3X8 MFZN BK B/COVER+M/PCB JACK FIX 97PP347603 DF-Q75(DV) CHASSIS MAIN 97P0617200 HIPS(HB) CORD POWER 97P69DB90B EU KKP-419C YFH800 1.7M PCB POWER MANUAL AS PVPWMSE596 PVMPMSE675 PVDKARPB6G...
Page 50: Electrical Partslist
ELECTRICAL PARTSLIST 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) PARTS_CODE PARTS_NAME PARTS_DESCR PARTS_CODE PARTS_NAME...
Page 51 ELECTRICAL PARTSLIST PARTS_CODE PARTS_NAME PARTS_DESCR PARTS_CODE PARTS_NAME PARTS_DESCR C052 HCQK209CBA C CHIP CERA 50V CH 2PF C 1608 C519 HCBK272KBA C CHIP CERA 50V X7R 2700PF K 1608 C053 HCQK209CBA C CHIP CERA 50V CH 2PF C 1608 C520 HCFH223ZBA C CHIP CERA 25V Y5V 0.022MF Z 1608 C054...
Page 52 ELECTRICAL PARTSLIST PARTS_CODE PARTS_NAME PARTS_DESCR PARTS_CODE PARTS_NAME PARTS_DESCR R088 HRFS153JBA R CHIP 1/16 15K OHM J 1608 RJ001 HRFS000-BA R CHIP 1/16 0 OHM 1608 R098 HRFS133JBA R CHIP 1/16 13K OHM J 1608 RJ002 HRFS000-BA R CHIP 1/16 0 OHM 1608 R099 HRFS133JBA R CHIP...
Page 53 ELECTRICAL PARTSLIST PARTS_CODE PARTS_NAME PARTS_DESCR PARTS_CODE PARTS_NAME PARTS_DESCR C275 CEXF1C100A C ELECTRO 16V RSM 10MF 5X7 L004 5CPX100J2T COIL PEAKING 10UH(BRN-BLK) C276 CEXF1C470A C ELECTRO 16V RSM 47MF (5X7) TP L051 5CPX101J2T COIL PEAKING 100UH(BRN-BRN) C278 CEXF1C100A C ELECTRO 16V RSM 10MF 5X7 L052 5CPX100J2T COIL PEAKING...
Page 54 ELECTRICAL PARTSLIST PARTS_CODE PARTS_NAME PARTS_DESCR PARTS_CODE PARTS_NAME PARTS_DESCR C160 CBZP1C103M C CERA SEMI 16V Y5S 0.01MF M (AXIAL) JP120 85801060TA WIRE COPPER 0.6X52MM TAPING C207 CCZJ1H104Z C CERA 50V HIKF 0.1MF Z AXL(1608) JP121 85801060TA WIRE COPPER 0.6X52MM TAPING C220 CBZP1C103M C CERA SEMI 16V Y5S 0.01MF M (AXIAL)
Page 55 ELECTRICAL PARTSLIST PARTS_CODE PARTS_NAME PARTS_DESCR PARTS_CODE PARTS_NAME PARTS_DESCR R278 RD-AZ511J- R CARBON FILM 1/6 510 OHM J R610 RD-AZ103J- R CARBON FILM 1/6 10K OHM J R302 RD-AZ822J- R CARBON FILM 1/6 8.2K OHM J R612 RD-AZ103J- R CARBON FILM 1/6 10K OHM J R305A RD-AZ474J- R CARBON FILM...
Page 56 ELECTRICAL PARTSLIST PARTS_CODE PARTS_NAME PARTS_DESCR PARTS_CODE PARTS_NAME PARTS_DESCR RP07 85801060TA WIRE COPPER 0.6X52MM TAPING JP068 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING U001 97P65476MA PCB MAIN 330X246X1.6T JP069 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING Z0014 PVMPJVE596 PCB MAIN JUMP ONLY AS DF-Q74D2D-BA(476MA) JP070 85801065GY...
Page 57 ELECTRICAL PARTSLIST PARTS_CODE PARTS_NAME PARTS_DESCR PARTS_CODE PARTS_NAME PARTS_DESCR JP145 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING JP223 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING JP146 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING JP224 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING JP147 85801065GY WIRE COPPER...
Page 58 ELECTRICAL PARTSLIST PARTS_CODE PARTS_NAME PARTS_DESCR PARTS_CODE PARTS_NAME PARTS_DESCR CC19 HCFH104ZBA C CHIP CERA 25V Y5V 0.1MF Z 1608 CF56 HCBK102KBA C CHIP CERA 50V X7R 1000PF K 1608 CC20 HCFH104ZBA C CHIP CERA 25V Y5V 0.1MF Z 1608 CF57 HCFH104ZBA C CHIP CERA 25V Y5V 0.1MF Z 1608 CC21...
Page 59 ELECTRICAL PARTSLIST PARTS_CODE PARTS_NAME PARTS_DESCR PARTS_CODE PARTS_NAME PARTS_DESCR CM58 HCBK102KBA C CHIP CERA 50V X7R 1000PF K 1608 CS24 HCBK332KBA C CHIP CERA 50V X7R 3300PF K 1608 CM59 HCFH104ZBA C CHIP CERA 25V Y5V 0.1MF Z 1608 CS25 HCFH104ZBA C CHIP CERA 25V Y5V 0.1MF Z 1608 CM60...
Page 60 ELECTRICAL PARTSLIST PARTS_CODE PARTS_NAME PARTS_DESCR PARTS_CODE PARTS_NAME PARTS_DESCR ICF01 11818E -Q IC CHIP DUAL OPTICAL CONTROL MT1818E LQFP 216 PIN TRAY RC63 HRFS103JBA R CHIP 1/16 10K OHM J 1608 ICF02 1ADS4616AQ 16M(1X16) SDRAM RC64 HRFS101JBA R CHIP 1/16 100 OHM J 1608 ADS4616A4A-6 16M 166MHZ 50PIN TSOP TRAY ICF04 1MX26LV80Q...
Page 61 ELECTRICAL PARTSLIST PARTS_CODE PARTS_NAME PARTS_DESCR PARTS_CODE PARTS_NAME PARTS_DESCR RF47 HRFS000-BA R CHIP 1/16 0 OHM 1608 RN01 HRFS479JBA R CHIP 1/16 4.7 OHM J 1608 RF48 HRFS000-BA R CHIP 1/16 0 OHM 1608 RN04 HRFS100JBA R CHIP 1/16W 10 OHM J 1608 RF49 HRFS000-BA R CHIP...
Page 62 ELECTRICAL PARTSLIST PARTS_CODE PARTS_NAME PARTS_DESCR PARTS_CODE PARTS_NAME PARTS_DESCR CN28 CEXF1C100A C ELECTRO 16V RSM 10MF 5X7 F801 5FWPS2022L FUSE WIDE TL 250V 2A CASE CN29 CEXF1C100A C ELECTRO 16V RSM 10MF 5X7 IC803 1KA431AZ IC REGULATOR KA431AZ 1% TO-92 CN33 CEXF1C331V C ELECTRO 16V RSS 330MF (8X11.5) TP...

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