Daewoo DF-4500 Service Manual Download | Manualshive

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5

TROUBLESHOOTING

P303
Check REMOCON_IN
(Pin2)

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Summary of Contents for DF-4500

Page 1: ...S M No DFQ75D2001 S ervice Manual MODEL DF 4500 S P DF 4501 S P DFX 4502 S P DFX 4505 S P JAN 2006 DVDR VCR Combi...

Page 2: ...1 SPECIFICATIONS 2 TROUBLE SHOOTING 3 WAVEFORMS 24 CIRCUIT DIAGRAM 27 PCB CIRCUIT BOARD 45 INSTRUMENT DISASSEMBLY 48 ELECTRICAL PARTSLIST 49 CONTENTS...

Page 3: ...d system 4 Head Video 2 Head Hi Fi helical scan azimuth system Timer 24 hour display type Tape speed SP 23 39 mm sec LP 11 70 mm sec Tape width 12 7 mm Rewind time less than 150 seconds E 180 Antenna...

Page 4: ...TROUBLESHOOTING 3 1 No output voltage of POWER CIRCUIT get input DC 200 240 Valtage 1 POWER CIRCUIT...

Page 5: ...4 TROUBLESHOOTING 2 SYSTEM CIRCUIT...

Page 6: ...5 TROUBLESHOOTING P303 Check REMOCON_IN Pin2...

Page 7: ...6 TROUBLESHOOTING B Digital Board Mpeg...

Page 8: ...on the screen even though changing tape Re adjust the height of AC HEAD Remove the dust Check C510 R545 R547 IC 501 pin 94 95 97 NO Re adjust PATH C 1 Bad playback quality 1 YES YES YES YES Noise app...

Page 9: ...DATA normal Is SIF Video output at TMI RF101 pin 16 19 normal Check IC 501 Check IC 501 Check P302 YES YES NO NO NO Is Video Signal input at IC501 pin 56 Is there Video output at P302 pin 5 Check TMI...

Page 10: ...Is 13V voltage obtained at Each parts of Loading Motor Replace Loading Motor Check D825 and POWER circuit E No CASSETTE Loading YES YES F AUTO STOP in Playback mode VCR stops automatically in playback...

Page 11: ...ltage obtained at P501 pin 9 Check P501 Connector and Capstan Motor Check EVER 14V D825 Check Capstan FG IC 501 pin 87 Check R541 R540 R539 R538 C518 Check R537 R536 C521 DRUM Motor stops Is 14V volta...

Page 12: ...and SCART JACK Check POWER circuit Check IC501 pin 58 71 72 NO YES YES NO NO YES Is signal output from pin 65 of IC301 YES NO Check IC301 pin 62 Q V Sync Is signal input into pin 21 of P302 YES NO Che...

Page 13: ...ope output from IC301 pin 79 NO NO Same as EE MODE check Is 5V supplied at IC301 pin 91 Is SW Pulse input at IC301 pin 70 Is 5V obtained at IC301 pin 24 42 55 72 91 Check POWER 5V Check IC501 pin 18 C...

Page 14: ...13 TROUBLESHOOTING 2 No DVD Playback Picture Check RC54 Digital board Check R385 R386 R387 R400 R404 Analog board 2 No DVD Playback Picture...

Page 15: ...SP MODE 89 90 Pin LP MODE 94 95Pin Check video HEAD and Connector Is signal input into IC301 pin 48 50 52 54 56 Check POWER circuit Check IC501 pin 18 Record video signal poor Check EE MODE YES Is lu...

Page 16: ...15 TROUBLESHOOTING DVD is not recording Check RC54 Digital board Check R385 R386 R387 R400 R404 Analog board at 2 DVD Part...

Page 17: ...btained at IC251 pin 42 43 NO Is 5V obtained at IC251 pin 40 Replace IC251 YES YES Is 12V obtained at IC251 pin 34 NO YES Check POWER circuit YES Is 5V obtained at IC051 pin 1 Check Power circuit NO I...

Page 18: ...Audio signal output at IC602 pin 3 13 Is Audio signal output at IC251 pin 16 17 Are CLK and DATA obtained at IC251 pin 42 43 NO Is 5V obtained at IC251 pin 40 Replace IC251 YES YES Is 12V obtained at...

Page 19: ...Audio signal output at IC602 pin 3 13 Is Audio signal output at IC251 pin 19 20 Are CLK and DATA obtained at IC251 pin 42 43 NO Is 5V obtained at IC251 pin 40 Replace IC251 YES YES Is 12V obtained at...

Page 20: ...Is Audio signal output at IC602 pin 3 13 Is Audio signal output at IC251 pin 19 20 Are CLK and DATA obtained at IC251 pin 42 43 NO Is 5V obtained at IC251 pin 40 Replace IC251 YES YES Is 12V obtained...

Page 21: ...20 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: ...there recording signal at IC251 pin 21 Check Input SCART JACK Check Input Front JACK Check ICD02 DVD Check signal flow circuit YES NO NO NO Signal at IC251 pin 21 is transferred to IC301 pin 13 15 17...

Page 23: ...1 Is Audio signal output at IC602 pin 3 13 Is Audio signal output at IC251 pin 16 17 Are CLK and DATA obtained at IC251 pin 42 43 NO Is 5V obtained at IC251 pin 40 Replace IC251 YES YES Is 12V obtaine...

Page 24: ...YES j No NORMAL AUDIO playback PLAY MODE Is Playback Audio signal at IC301 pin 11 Replace IC251 YES NO NO Is there Playback Normal Audio signal at IC251 pin 16 17 Check A C HEAD and IC301 YES Check O...

Page 25: ...1 43 520mVp p 100mV 5usec REC IC301 43 520mVp p 100mV 5usec PLAY IC301 21 600mVp p 200mV 2msec cm PLAY SP VIDEOSWTRIG IC301 21 350mVp p 200mV 2msec cm PLAY EP VIDEOSWTRIG IC301 67 4 6Vp p 2V 10usec cm...

Page 26: ...m REC IC301 100 2 3Vp p 0 5V 0 5msec cm REC 1 IC301 8 120mVp p 50mV 0 5msec cm PLAY 2 P202 1 75Vp p 10V 20 sec cm REC 3 IC251 2 80mVp p 20mV 0 5msec EE REC PLAY 4 IC251 24 200mVp p 50mV 0 5msec EE REC...

Page 27: ...IC501 77 5Vp p 2V 5 sec cm REC PLAY 0 IC501 76 5Vp p 2V 5 sec cm REC PLAY IC501 94 3Vp p 1V 5msec cm REC IC501 97 4 4Vp p 1V 5msec cm PLAY IC501 90 25Vp p 5Vp p 1V 5msec cm REC PLAY IC501 87 2 5Vp p...

Page 28: ...27 CIRCUIT DIAGRAM 1 SERVO SYSCON SCHEMATIC DIAGRAM VE1 0 PAL RW COMBO...

Page 29: ...28 CIRCUIT DIAGRAM 2 AV IC SCHEMATIC DIAGRAM VE1 0 PAL RW COMBO...

Page 30: ...29 CIRCUIT DIAGRAM 3 Hi Fi SW IN OUT CIRCUIT SCHEMATIC DIAGRAM VE1 0 PAL RW COMBO...

Page 31: ...30 4 ADC DAC VIDEO AMP IC SCHEMATIC DIAGRAM VE1 0 PAL RW COMBO CIRCUIT DIAGRAM...

Page 32: ...31 CIRCUIT DIAGRAM 5 FRONT PART SCHEMATIC DIAGRAM VE1 0 PAL RW COMBO...

Page 33: ...32 CIRCUIT DIAGRAM 6 TUNER NICAM SCHEMATIC DIAGRAM VE1 0 PAL RW COMBO...

Page 34: ...33 CIRCUIT DIAGRAM 7 POWER SUPPLY SCHEMATIC DIAGRAM...

Page 35: ...une 09 2005 CC13 0 1uF CC13 0 1uF CC26 0 1uF CC26 0 1uF CC16 220uF 16v CC16 220uF 16v CC20 0 1uF CC20 0 1uF CC31 0 1uF CC31 0 1uF LC01 FB LC01 FB CC17 220uF 16v CC17 220uF 16v CC15 0 1uF CC15 0 1uF CC...

Page 36: ...01 FB CN43 0 1uF CN43 0 1uF CN47 0 1uF CN47 0 1uF R A16 10K R A16 10K CN05 0 1uF CN05 0 1uF CN48 0 1uF CN48 0 1uF CN57 0 1uF CN57 0 1uF CN28 10uF 16v CN28 10uF 16v BN01 BN01 DN04 DIODE SMD DN04 DIODE...

Page 37: ...0uF 16v CM51 220uF 16v CM25 0 1uF CM25 0 1uF 1 2 3 4 5 6 7 8 RM25 75x4 RM25 75x4 1 2 3 4 5 6 7 8 RM22 75x4 RM22 75x4 CM39 0 1uF CM39 0 1uF CM20 0 1uF CM20 0 1uF RM28 75 RM28 75 NC 1 NC 2 NC 3 GND 4 SD...

Page 38: ...E 4 11 Thursday June 09 2005 DRAWN DESIGNED CHECKED APPROVED MODEL FILE NAME DATE REVISED REV NO SHEET DF Q74D2N LS 1 1 DAEWOO ELECTRONICS Digital Video Lab DF Q74D2N LS dsn 4 Team MP S D Park B Y Cho...

Page 39: ...0 01uF CD14 0 01uF RD07 R RD07 R RD09 56 1 RD09 56 1 CD03 27P CD03 27P CD13 1000P CD13 1000P CD07 1000P CD07 1000P RD05 6 34K RD05 6 34K CD17 220uF 16v A CD17 220uF 16v A 1 2 3 4 5 6 PD01 6 Pin connec...

Page 40: ...V RA07 22 RA07 22 RA21 100 RA21 100 AOUTL 7 AGN D 8 MCLK 4 VA 9 AOUTR 10 SCLK 2 SDIN 1 LRCK 3 FILT 6 VQ 5 ICA02 CS4344 ICA02 CS4344 CA13 47uF 16V CA13 47uF 16V RA06 22 RA06 22 RA14 910 RA14 910 CA03 0...

Page 41: ...OWER 5V DVCC MT1818E SDVCC MT1816E ICE 93C66 SDRAM 12V Source 12V Motor 5V AAGND D3 3V Digital 3 3V DEVICE DGND Power Supply TYPE AGND Source 5V PICKUP HEADER Audio AMP MT1818E NAME Digital 3 3V RVCC...

Page 42: ...22 PW M 5 PW M 5 CF61 0 1uF CF61 0 1uF CF35 0 1uF CF35 0 1uF CF46 0 1uF CF46 0 1uF RF15 0 RF15 0 SGND SGND PD M 2 PD M 2 PW M 3 PW M 3 CF54 0 1uF CF54 0 1uF CF25 2200pF CF25 2200pF RF10 22 RF10 22 IRE...

Page 43: ...For Debug only Normal Close HW reset RF70 0 ohm RF69 NC SW reset RF70 NC RF69 0 ohm RF28 33 RF28 33 CF74 0 1uF CF74 0 1uF 1 2 3 4 5 6 7 8 9 10 11 12 13 15 14 16 JPF01 NC short NC8X2 SMD P1 0 JPF01 NC...

Page 44: ...37 0 RF37 0 TP43 TP43 RF1 RF1 CS30 0 1uF CS30 0 1uF C S41 1uF C S41 1uF CS59 2 2uF CS59 2 2uF TP54 TP54 FR 76 VR 5 99 VR 6 100 PUH10 126 PUH9 127 AU X2 98 AU X1 97 VR 2 90 AVSS3 82 RRF2 96 WA 3 83 AVD...

Page 45: ...MD1 0 TOP H17S P1 0 TOP PF03 HEADER 17 SMD1 0 TOP H17S P1 0 RF51 100 RF51 100 CS96 0 1uF CS96 0 1uF RF58 2 2 2012 R0805 SMD RF58 2 2 2012 R0805 SMD CS75 0 1uF CS75 0 1uF CS83 0 1uF CS83 0 1uF CS74 0 1...

Page 46: ...45 PCB CIRCUIT BOARD 1 MAIN Analog board PCB...

Page 47: ...2 POWER PCB PCB CIRCUIT BOARD 46...

Page 48: ...47 PCB CIRCUIT BOARD 3 Mpeg Digital board PCB...

Page 49: ...ASSIS MAIN CORD POWER PCB POWER MANUAL AS 97P0997600 97P0617200 97P69DB90B PVPWMSE596 PVMPMSE675 PVDKARPB6G EU KKP 419C YFH800 1 7M 97P0487004 7173300812 97PP347603 TT2 BIN 3X8 MFZN BK DF Q75 DV HIPS...

Page 50: ...ARTS_NAME PARTS_DESCR AD001 97PA296101 DRUM PRICE AS CYP T610R AD002 7003300551 SCREW MACHINE BIN 3X5 MFZN 3CR AF001 97SA261081 F L AS T MECHA SLIM 3CR AF002 7174300651 SCREW TAPPTITE TT2 RND 3X6 MFZN...

Page 51: ...0PF K 1608 C511 HCBK103KBA C CHIP CERA 50V X7R 0 01MF K 1608 C514 HCBK102KBA C CHIP CERA 50V X7R 1000PF K 1608 C515 HCFH104ZBA C CHIP CERA 25V Y5V 0 1MF Z 1608 C516 HCBK222KBA C CHIP CERA 50V X7R 2200...

Page 52: ...OHM J 1608 RD11 HRFS102JBA R CHIP 1 16 1K OHM J 1608 RD35 HRFS751JBA R CHIP 1 16 750 OHM J 1608 RD65 HRFS102JBA R CHIP 1 16 1K OHM J 1608 LOC PARTS_CODE PARTS_NAME PARTS_DESCR RJ001 HRFS000 BA R CHIP...

Page 53: ...MF 5X7 CD124 CEXF1C220A C ELECTRO 16V RSM 22MF 5X7 CD127 CEXF1C470A C ELECTRO 16V RSM 47MF 5X7 TP L001 5CPX100J2T COIL PEAKING 10UH BRN BLK L002 5CPX100J2T COIL PEAKING 10UH BRN BLK L003 5CPX100J2T CO...

Page 54: ...OPPER 0 6X52MM TAPING LOC PARTS_CODE PARTS_NAME PARTS_DESCR JP120 85801060TA WIRE COPPER 0 6X52MM TAPING JP121 85801060TA WIRE COPPER 0 6X52MM TAPING JP124 85801060TA WIRE COPPER 0 6X52MM TAPING JP133...

Page 55: ...D AZ512J R CARBON FILM 1 6 5 1K OHM J R607 RD AZ512J R CARBON FILM 1 6 5 1K OHM J R608 RD AZ512J R CARBON FILM 1 6 5 1K OHM J LOC PARTS_CODE PARTS_NAME PARTS_DESCR R610 RD AZ103J R CARBON FILM 1 6 10K...

Page 56: ...5801065GY WIRE COPPER AWG22 1 0 65 TIN COATING JP067 85801065GY WIRE COPPER AWG22 1 0 65 TIN COATING LOC PARTS_CODE PARTS_NAME PARTS_DESCR JP068 85801065GY WIRE COPPER AWG22 1 0 65 TIN COATING JP069 8...

Page 57: ...P217 85801065GY WIRE COPPER AWG22 1 0 65 TIN COATING JP219 85801065GY WIRE COPPER AWG22 1 0 65 TIN COATING JP221 85801065GY WIRE COPPER AWG22 1 0 65 TIN COATING LOC PARTS_CODE PARTS_NAME PARTS_DESCR J...

Page 58: ...104ZBA C CHIP CERA 25V Y5V 0 1MF Z 1608 CF55 HCBK102KBA C CHIP CERA 50V X7R 1000PF K 1608 LOC PARTS_CODE PARTS_NAME PARTS_DESCR CF56 HCBK102KBA C CHIP CERA 50V X7R 1000PF K 1608 CF57 HCFH104ZBA C CHIP...

Page 59: ...CS23 HCBK332KBA C CHIP CERA 50V X7R 3300PF K 1608 LOC PARTS_CODE PARTS_NAME PARTS_DESCR CS24 HCBK332KBA C CHIP CERA 50V X7R 3300PF K 1608 CS25 HCFH104ZBA C CHIP CERA 25V Y5V 0 1MF Z 1608 CS27 HCBK332...

Page 60: ...CHIP 1 16 100 OHM J 1608 RC58 HRFS472JBA R CHIP 1 16 4 7K OHM J 1608 RC59 HRFS103JBA R CHIP 1 16 10K OHM J 1608 RC60 HRFS562JBA R CHIP 1 16 5 6K OHM J 1608 RC61 HRFS102JBA R CHIP 1 16 1K OHM J 1608 RC...

Page 61: ...FS103JBA R CHIP 1 16 10K OHM J 1608 RM40 HRFS103JBA R CHIP 1 16 10K OHM J 1608 RM41 HRFS103JBA R CHIP 1 16 10K OHM J 1608 LOC PARTS_CODE PARTS_NAME PARTS_DESCR RN01 HRFS479JBA R CHIP 1 16 4 7 OHM J 16...

Page 62: ...EXF1A221V C ELECTRO 10V RSS 220MF C831 CEXF1A221V C ELECTRO 10V RSS 220MF C832 CEXF1A221V C ELECTRO 10V RSS 220MF C833 CEXF1E221V C ELECTRO 25V RSS 220MF 8X11 5 TP C834 CMXM2A473J C MYLAR 100V 0 047MF...

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