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C. No Hi-Fi playback in record/playback mode (REC MODE)

Are there Audio signal

at IC251 pin#4~9?

Is FM OSC signal at IC251

pin#36?

Check input LINE1 JACK.

Check input LINE2 JACK.

Check ICD03(DVD).

Replace DRUM.

YES

NO

NO

NO

Is FM OSC signal at P401 pin#2?

Replace IC251

YES

HEAD CLEANING.

YES

D. 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 #17,18?

Check A/C HEAD and IC301

YES

Check Output JACK.

YES

Is there normal Audio signal at

IC251 pin#17, 18?

NO

Check power circuit.

NO

Voltage at IC251 pin#34 is 12V?

Voltage at IC251 pin#40 and at

IC301 pin#18 is 5V?

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Содержание DC-G84D1D

Страница 1: ...S M No VDCB83PET Service Manual MODEL DC G84D1D DC G8GD1S DC G8GD1D DC G8HD1P DC G8GD1P DC G8GD1D DC B84D1P SG 7200 SG 7500 SG 9500P SG 9200P SG 9300 SG 9200S SG 9300P SG 9500S MAY 2006...

Страница 2: ...1 SPECIFICATIONS 2 ADVANTAGES OF THIS PRODUCT 3 TROUBLE SHOOTING 5 WAVEFORMS 23 CIRCUIT DIAGRAM 26 PCB CIRCUIT BOARD 36 INSTRUMENT DISASSEMBLY 39 ELECTRICAL PARTSLIST 45 CONTENTS...

Страница 3: ...se of DVD and VCR VIDEO output terminal 1 0 Vp p unbalanced RCA JACK SCART JACK VIDEO output DVD only RGB output 75 In load R 0 7Vp p G 0 7Vp p B 0 7Vp p AUDIO output common use of DVD and VCR Audio o...

Страница 4: ...n enjoy high level digital audio by connecting with amp embedded with Dolby Digital dts decoder Built in Dolby Digital decoder DVD Analog audio 2 channels output for DOWNMIX x1 Composite video output...

Страница 5: ...case of SVCD or VCD it depends on the disc The number of subtitle languages depends on the software Multi Angle function DVD This function allows you to choose the viewing angle of scenes which were s...

Страница 6: ...cord is ok Is 400V 200V voltage obtained at C804 Output voltage of 2nd parts is normal Check rectifier diode of 2nd parts D821 D822 D823 D824 D825 D826 D827 Switching pulse of Q801 collector is normal...

Страница 7: ...5 Oscillation at IC701pin 1 Specific GRID SEG doesn t function Check R588 D857 L503 L860 Exchange IC701 Check IC 701 pin 22 24 27 28 30 31 Check IC 701 pin 10 12 14 21 NO YES YES NO NO GRID output at...

Страница 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 91 92 98 NO Re adjust PATH B 1 Bad playback quality 1 YES YES YES YES Noise app...

Страница 9: ...TA normal Is SIF Video output at TMI RF101 pin 16 19 normal Check IC 501 Check IC301 Check IC501 YES YES NO NO NO Is Video Signal input at IC501 pin 50 Is there Video output at IC501 pin 52 Check TMI...

Страница 10: ...V voltage obtained at Each parts of Loading Motor Replace Loading Motor Check D851 and POWER circuit D No CASSETTE Loading YES YES E AUTO STOP in Playback mode VCR stops automatically in playback mode...

Страница 11: ...ltage obtained at P501 pin 9 Check P501 Connector and Capstan Motor Check EVER 14V Q850 Check Capstan FG IC 501 pin 87 Check R541 R540 R539 R538 C518 Check R537 R536 C521 DRUM Motor stops Is 14V volta...

Страница 12: ...heck 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 50 of IC501 YES NO Check PCB Pattern Is signal output fro...

Страница 13: ...om 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 Clean head or...

Страница 14: ...89 90 LP MODE 89 90 Pin SP 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...

Страница 15: ...in 52 NO Replace IC501 D No OSD On Screen Display appears YES YES NO Check IC 501 Check IC 501 NO Check PCB Pattern Check FFC CABLE DVD Module DVD Composite signal doesn t appear Is signal output at P...

Страница 16: ...2 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 Replace IC601 Is 5V obtained at IC051 pin 1 Check Power circuit NO Is there...

Страница 17: ...13 Check IC501 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 IC251 pin 34 NO YES Ch...

Страница 18: ...13 Check IC501 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 IC251 pin 34 NO YES Ch...

Страница 19: ...DVD E E mode Check FFC 19P or 11P Fix the FFC 19P or 11P NO Is Audio signal output at IC601 pin 3 13 Check IC501 YES Replace IC601 Comparing with switching table are SWA B CTL SIGNAL right at IC601 p...

Страница 20: ...1 12 Check Input Front JACK NO Is Audio signal output at IC601 pin 3 13 Check IC501 YES Replace IC601 Comparing with switching table are SWA B CTL SIGNAL right at IC601 pin 9 10 NO Check Output JACK Y...

Страница 21: ...Check IC501 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 IC251 pin 34 NO YES Check...

Страница 22: ...SC signal at P401 pin 2 Replace IC251 YES HEAD CLEANING YES D 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...

Страница 23: ...there recording signal at IC251 pin 21 Check Input LINE1 JACK Check Input LINE2 JACK Check ICD03 DVD Check signal flow circuit YES NO NO NO Signal at IC251 pin 21 is transferred to IC301 pin 13 15 17...

Страница 24: ...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...

Страница 25: ...sec cm REC IC301 100 2 3Vp p 0 5V 0 5msec cm REC 1 IC301 8 120mVp p 50mV 0 5msec cm PLAY 2 P202 2 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 E...

Страница 26: ...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...

Страница 27: ...26 CIRCUIT DIAGRAM 1 POWER SUPPLY CIRCUIT DIAGRAM...

Страница 28: ...27 CIRCUIT DIAGRAM 2 SERVO SYSCON CIRCUIT DIAGRAM...

Страница 29: ...28 CIRCUIT DIAGRAM 3 A V CIRCUIT DIAGRAM...

Страница 30: ...29 4 HiFi SW INPUT CIRCUIT DIAGRAM CIRCUIT DIAGRAM...

Страница 31: ...30 CIRCUIT DIAGRAM 5 Hi Fi PIF INOUT CIRCUIT DIAGRAM...

Страница 32: ...330pF CP34 0 1uF CE41 100uF 16V CA16 C RM20 4 7K RA53 0 TP16 RA33 15K CA17 0 1uF RA63 15k RA55 0 CA49 0 033uF CP35 0 1uF RA32 27K CP40 0 1uF CA34 0 1uF CA13 1uF CA44 0 047uF CP44 0 1uF RA62 100k MT13...

Страница 33: ...3 330pF CP34 0 1uF CE41 100uF 16V CA16 C RM20 4 7K RA53 0 TP16 RA33 15K CA17 0 1uF RA63 15k RA55 0 CA49 0 033uF CP35 0 1uF RA32 27K CP40 0 1uF CA34 0 1uF CA13 1uF CA44 0 047uF CP44 0 1uF RA62 100k MT1...

Страница 34: ...7 14 13 21 19 20 24 27 6 4 5 28 8 11 17 18 16 23 22 25 26 29 30 FWD VOL VOL VO2 CTL REV VO4 SVCC VO1 VO1 MUTE GND PVCC2 VDET REB IN2 PS IN1 BIAS PVCC1 VO2 VO3 VO3 VO4 IN4 IN3 RESET REO PGND1 PGND2 RF...

Страница 35: ...F EF11 0 C MEM2012W CM13 0 1uF RM14 33 RM18 680 CM18 0 1uF RM16 10K CM12 0 1uF RM11 33x4 1 2 3 4 5 6 7 8 CE33 220uF 6 3V CM16 0 1uF IC17 EEPROM 24C08 SOP8 1 2 3 4 5 6 7 8 NC NC NC GND SDA SCL WP VCC C...

Страница 36: ...12V RB19 10K RB14 33 RB32 75 1 CB11 100pF RB36 27K RB11 33 RB27 0 RB40 27K CE34 10uF 16V RB12 33 RB50 0 CE35 220uF 6 3V CB13 1500pF RB13 33 RB42 5 1K RB37 0 CN14 19 PIN CONN 1 2 3 4 5 6 7 8 9 10 11 12...

Страница 37: ...36 PCB CIRCUIT BOARD 1 1 VCR MAIN...

Страница 38: ...37 PCB CIRCUIT BOARD 1 2 POWER...

Страница 39: ...38 PCB CIRCUIT BOARD 1 3 DVD MAIN...

Страница 40: ...m all disassembly procedures in the order presented When reassembling use the reverse procedure Make sure that all leads wiring are routed correctly when reassembling FIG 1 A TOP COVER REMOVAL Remove...

Страница 41: ...NEL FRONT DISASSEMBLY C LOGIC PCB DISASSEMBLY FIG 2 FIG 3 Remove 3 Hooks at bottom Remove 2 Hooks at left and right sides Simultaneously remove panel Remove 2 screws then remove Logic INSTRUMENT DISAS...

Страница 42: ...41 INSTRUMENT DISASSEMBLY FIG 4 D DECK AND MAIN PARTS DISASSEMBLY Remove 6 screws then remove DECK Remove 4 screws then remove LOADER Remove 3 screws then remove POWER PCB...

Страница 43: ...42 INSTRUMENT DISASSEMBLY FIG 5 E MAIN PCB DISASSEMBLY Remove 2 screws then remove MAIN PCB Remove 2 screws...

Страница 44: ...43 INSTRUMENT DISASSEMBLY F MAIN CHASSIS DISASSEMBLY FIG 6 Remove 4 screws then remove MAIN...

Страница 45: ...44 INSTRUMENT DISASSEMBLY G Explode view...

Страница 46: ...CR REMARK C060 HCFH104ZBA CCHIPCERA 25VY5V0 1MFZ1608 C062 HCFH104ZBA CCHIPCERA 25VY5V0 1MFZ1608 C067 HCFH104ZBA CCHIPCERA 25VY5V0 1MFZ1608 C153 HCBK103KBA CCHIPCERA 50VX7R0 01MFK1608 C157 HCBK563KBA C...

Страница 47: ...JBA CCHIPCERA 50VCH33PFJ1608 C699 HCQK330JBA CCHIPCERA 50VCH33PFJ1608 C888 HCFH223ZBA CCHIPCERA 25VY5V0 022MFZ1608 CD06 HCQK561JBA CCHIPCERA 50VCH560PFJ1608 CD14 HCFH104ZBA CCHIPCERA 25VY5V0 1MFZ1608...

Страница 48: ...S103JBA RCHIP 1 16 10KOHMJ1608 R512 HRFS472JBA RCHIP 1 16 4 7KOHMJ1608 R515 HRFS222JBA RCHIP 1 16 2 2KOHMJ1608 LOC PARTS_CODE PARTS_NAME PARTS_DESCR REMARK R516 HRFS103JBA RCHIP 1 16 10KOHMJ1608 R517...

Страница 49: ...E PARTS_DESCR REMARK Z0012 PVMPJRS202 PCBMAINRADIALAS DC B87D1S NA C001 CEXF1C100A CELECTRO 16VRSM10MF5X7 PALONLY C004 CEXF1A101A CELECTRO 10VRSM100MF6 3X7 C013 CEXE1A221E CELECTRO 10VRM220MF5X11 C016...

Страница 50: ...LECTRO 16VRSM22MF 5X7 CD50 CEXF1A471V CELECTRO 10VRSS470MF 8X11 5 TP CD51 CEXF1A471V CELECTRO 10VRSS470MF 8X11 5 TP CD52 CEXF1A471V CELECTRO 10VRSS470MF 8X11 5 TP LOC PARTS_CODE PARTS_NAME PARTS_DESCR...

Страница 51: ...BSB DIODEZENER UZ 13BSB 12 59 13 16V LOC PARTS_CODE PARTS_NAME PARTS_DESCR REMARK D616 DZUZ13BSB DIODEZENER UZ 13BSB 12 59 13 16V D617 DZUZ13BSB DIODEZENER UZ 13BSB 12 59 13 16V D619 DZUZ5R6BSB DIODEZ...

Страница 52: ...03J RCARBONFILM 1 620KOHMJ R636 RD AZ203J RCARBONFILM 1 620KOHMJ R637 RD AZ103J RCARBONFILM 1 610KOHMJ LOC PARTS_CODE PARTS_NAME PARTS_DESCR REMARK R638 RD AZ103J RCARBONFILM 1 610KOHMJ R644 RD 4Z751J...

Страница 53: ...HCFH104ZBA CCHIPCERA 25VY5V0 1MFZ1608 CD12 HCFH104ZBA CCHIPCERA 25VY5V0 1MFZ1608 LOC PARTS_CODE PARTS_NAME PARTS_DESCR REMARK CD13 HCFH104ZBA CCHIPCERA 25VY5V0 1MFZ1608 CD14 HCFH104ZBA CCHIPCERA 25VY5...

Страница 54: ...S103JBA RCHIP 1 16 10KOHMJ1608 RC28 HRFS103JBA RCHIP 1 16 10KOHMJ1608 LOC PARTS_CODE PARTS_NAME PARTS_DESCR REMARK RC29 HRFS103JBA RCHIP 1 16 10KOHMJ1608 RC30 HRFS330JBA RCHIP 1 16 33OHMJ1608 RC31 HRF...

Страница 55: ...802 RW02B229J RWIREWOUND 2W2 2OHMJ R806 RS02F104JS RM OXIDEFILM 2W100KOHMJSMALL T801 57M8282320 TRANSSMPS TSW VE3 0N Z0081 PVPWJRE435 PCBPOWERRADIALAS DC B87D1D NB LOC PARTS_CODE PARTS_NAME PARTS_DESC...

Страница 56: ...O SECAM LL SWISS O O X PAL BG DK O O O HI FI MONO D504 HI FI 4H D X MONO 2H D 0 1 SYSTEM 2 Hi Fi Mono BG DK D507 BG X DK 0 3 MODULATOR output change BG DK DAEWOO SANYO D508 DAEWOO X SANYO 0 NEW OLD TM...

Страница 57: ...DAEWOO ELECTRONICS CORP 686 AHYEON DONG MAPO GU SEOUL KOREA C P O BOX 8003 SEOUL KOREA PRINTED DATE MAY 2006...

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