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Daewoo DW-Q73D2N-LS, Service Manual, Page: 45 / 73

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Daewoo DW-Q73D2N-LS Service Manual Download Page 45

44

TROUBLESHOOTING

2. SYSTEM CIRCUIT

No  LED display.

Is 5V obtained at IC701 

pin # 9, 25?

Oscillation at IC701 pin #1? 

Check  L703, pin#6 of PJ701

Exchange  IC701.

Check IC 701 pin #6, 7, 8

Check IC 701 pin # 10-12,14,15

NO

YES

YES

NO

Check  PCB

NO

NO

KEY output at PORT of IC701?

Is there KEY/SEG signal?

YES

SEG output at PORT of IC701?

Exchange IC701.

YES

A. LED DISPLA Y

NO

Summary of Contents for DW-Q73D2N-LS

Page 1: ...DVD Recorder FEB 2006 DW Q73D2N LS DVR06 DVR07 DVR08 DG R520 DG R521 DWQ73DN001...

Page 2: ...1 1 SPECIFICATIONS 3 BLOCK DIAGRAM 9 SCHEMATIC DIAGRAM 18 WAVEFORMS 34 VOLTAGE CHART 40 DISASSEMBLY 41 TROUBLE SHOOTING 43 PCB CIRCUIT BOARD 54 ELECTRICAL PARTSLIST 62 CONTENTS...

Page 3: ...2 DW Q73D2N LS DVR06 DVR08 DG R520 DG R521 DVR07...

Page 4: ...DA O CD R RW O MP3 Decoding O MP3 ID3 Tag X DVD R RW O DVD R RW Video Mode O DVD RAM X VIDEO CD 2 0 O SVCD O WMA X WMV X JPEG O Kodak Picture CD X DivX X DVD Audio X SACD X HDCD X Recordable Disc DVD...

Page 5: ...Dolby Digital Decoder Built in O File Management Menu Display Thumbnail Title O Editing Thumbnail Change O Not supported to DVD R after finalization Title append divide erase Append X Divide O Erase...

Page 6: ...PBC On Off X VCD 2 0 Only x2 Audio Digest X JPEG Play w MP3 Play X x2 Soft scan X Scan Fwd Rev O X2 X4 X8 X16 X32 Slow Fwd O X1 2 X1 4 X1 8 X1 16 Slow Rev O X1 2 X1 4 X1 8 X1 16 Time Shift Play Rec X...

Page 7: ...N SALES AREA BUYER MODEL BUYER DVR06 Timer Record 8PGM 1M OTR One toutch Timer Record O 30min Max 8Hr Function OSD On Off O CM Skip 30sec Skip X VCR Plus North America X ACSS Auto Clock Setting System...

Page 8: ...PCMCIA X Multi Memory Card Slot X USB X DV Terminal Input 1394 O Rear Panel Analog Audio Out Component Pair Analog Audio Out O DVD VCR Analog Audio Input O 1EA X Digital Audio Out Optical Coaxial O O...

Page 9: ...witchable X Scart 2 By pass X RF CH Switch X RF In O RF Out O Accessory RCU Tool VR FA2 Type normal Shuttle Illumination X Bundle Disc DVD RW O A V RCA Cable O Coaxial Cable X Optical Cable X S Video...

Page 10: ...EO LINE1_VIDEO FROM_JACK_701 FOR_REC_VIDEO FORM_DVD_PART LINE2_VIDEO FROM_JACK_101 LINE1_AUDIO FROM_JACK_701 FOR_REC_AUDIO FORM_DVD_PART LINE2_AUDIO FROM_JACK_101 SIF AUDIO_IN CVBS COMPONENT S_VIDEO P...

Page 11: ...M ANALOG BOARD REMOCON RECEIVER ARSDAT ARCLK ARLRCK ARBCK ASDAT0 ABCK ALRCK ACLK AUDIO R OUT TO ANALOG BOARD AUDIO L OUT TO ANALOG BOARD AUDIO L IN FORM ANALOG BOARD CVBS OUT TO ANALOG BOARD COMPONENT...

Page 12: ...11 BLOCK DIAGRAM...

Page 13: ...12 BLOCK DIAGRAM...

Page 14: ...13 BLOCK DIAGRAM P201 P201 IC201 A SW NJM4052BM IC101...

Page 15: ...14 BLOCK DIAGRAM...

Page 16: ...15 BLOCK DIAGRAM...

Page 17: ...16 BLOCK DIAGRAM...

Page 18: ...17 BLOCK DIAGRAM...

Page 19: ...18 SCHEMATIC DIAGRAM...

Page 20: ...19 SCHEMATIC DIAGRAM...

Page 21: ...20 SCHEMATIC DIAGRAM...

Page 22: ...21 SCHEMATIC DIAGRAM...

Page 23: ...22 SCHEMATIC DIAGRAM...

Page 24: ...CC33 220uF 6 3v CC33 220uF 6 3v CC22 0 1uF CC22 0 1uF CC14 0 1uF CC14 0 1uF ADJ GND 1 OUT 2 IN 3 ICC03 AAC1117 1 8 TO 252 3 SMD ICC03 AAC1117 1 8 TO 252 3 SMD CC21 0 1uF CC21 0 1uF LC04 FB LC04 FB CC...

Page 25: ...3 4 PN01 4x1 W HOUSING DIP4 W H P2 0 PN01 4x1 W HOUSING DIP4 W H P2 0 CN21 0 1uF CN21 0 1uF RA17 10K RA17 10K CN49 0 1uF CN49 0 1uF CN29 10uF 16v CN29 10uF 16v RN31 0 2012 RN31 0 2012 CN41 0 1uF CN41...

Page 26: ...M29 75 RM29 75 1 2 3 4 5 6 7 8 RM07 33x4 RM07 33x4 LM01 FB LM01 FB CM06 220uF 16v CM06 220uF 16v RM14 33 RM14 33 CM22 0 1uF CM22 0 1uF CM46 220uF 16v CM46 220uF 16v CM12 0 1uF CM12 0 1uF RM15 33 RM15...

Page 27: ...5 16 17 18 19 20 21 22 23 24 25 PC02 CONN PC02 CONN RC56 150 1 RC56 150 1 RC68 100 RC68 100 TP62 TP62 RC53 150 1 RC53 150 1 1 2 3 4 5 PC03A CONN PC03A CONN TP63 TP63 RC71 100 RC71 100 TP70 TP70 TP66 T...

Page 28: ...08 56 1 RD08 56 1 RN21 0 NC RN21 0 NC RD12 5K RD12 5K LD01 FB LD01 FB CD09 0 1uF CD09 0 1uF SYSCLK 1 CTL0 2 CTL1 3 D0 4 D1 5 D2 6 D3 7 D4 8 D5 9 D6 10 D7 11 PD 12 LPS 13 DGND 14 C LKON 15 PC0 16 PC1 1...

Page 29: ...VL 3 M1 16 LRCK 8 AINR 12 VQ 11 AINL 10 FILT 15 RST 9 GND 5 REF_GND 14 ICA01 CS5340 ICA01 CS5340 LA04 NC LA04 NC RA02 10K RA02 10K LA03 10uH LA03 10uH CA14 10uF 50V CA14 10uF 50V RA09 22 RA09 22 RA24...

Page 30: ...Ground Plane D3 3LVDS FVCC Digital 3 3V Digital 3 3 5 0V MT1818E FLASH ROM D3 3VS Digital 3 3V MT1818E LQFP216 DVR Demo Board for SONY LDX 378 PUH GND_POWER GND RF66 10K RF66 10K CF06 47uF 16v CF06 4...

Page 31: ...JECT 35 PDM1 10 PDM2 11 PWM2 12 PWM5 14 PWM1 15 PWM3 17 UA17 UP1_1 63 DVDD33 157 HD11 160 HD3 159 HD12 158 HD2 156 OPU2 31 UA5 51 UA6 52 UA7 53 UALE 54 DVDD33 48 UA15 UP2_7 56 UA18 UP1_2 60 UA12 UP2_4...

Page 32: ...RF27 22 CF72 0 1uF CF72 0 1uF VCC 1 DQ0 2 DQ1 3 VSSQ 4 DQ2 5 DQ3 6 VCCQ 7 DQ4 8 DQ5 9 VSSQ 10 DQ6 11 DQ7 12 VCCQ 13 DQML 14 WE 15 CAS 16 RAS 17 CS 18 BA A11 19 A10 20 A0 21 A1 22 A2 23 A3 24 VCC 25 VS...

Page 33: ..._SDATA 72 VR7 67 LED2 78 PO6 102 LIMIT 77 DRVOUT0 73 GIO3 68 DRVOUT2 75 DRVOUT1 74 AGND1 81 GIO2 69 GIO1 80 WID1 64 VR3 91 AVDD7 26 PUH15 25 PUH16 24 PUH17 23 PUH18 22 RF7 39 RF6 40 RF0 33 RF2 31 RF1...

Page 34: ...87 47uF 16v RF57 27K RF57 27K RF56 27K RF56 27K FG FG 1 2 3 4 5 PF02 5x1 W HOUSING DIP5 W H P2 0 PF02 5x1 W HOUSING DIP5 W H P2 0 RF60 2 2 2012 R0805 SMD RF60 2 2 2012 R0805 SMD RF62 0 RF62 0 CS85 0 2...

Page 35: ...V OUT P201 2 0Vp p 500mV 10usec REC Y G IC601 g 4 8Vp p 1V 20usec C SYNC P201 35 500Vp p 200mV 0 5msec REC A OUT L R RF101 3 400Vp p 200mV 20usec REC SIF OUT P201 79 1Vp p 200mV 0 2msec REC A IN L R...

Page 36: ...S 1 SYSTEM WAVEFORMS ICC03 1 8Voltage ICC02 2 5Voltage ICM02 1 25Voltage XN02 32 768KHz X tal XN01 27MHz X tal RN22 MT8105 Reset 3 3V STBY RM13 DDR clock RN04 IR RC71 SDATA IN RC70 SDATA OUT RC69 S CL...

Page 37: ...36 WAVEFORMS Pin1 of ICD01 Phy clock RN25 MT1818 Reset 3 3V ON OFF RF69 Flash Reset 3 3V ON OFF RD06 DV Reset 3 3V ON OFF...

Page 38: ...37 WAVEFORMS 2 VIDEO WAVEFORMS Test Signal 100 Color Bar Pb Out PC02 09 Pr Out PC02 09 SVIDEO C OUT PC02 03 CVBS OUT PC02 05 Y OUT PC02 07 CVBS IN ICN01 256 XN01 CN18 01 SVIDEO Y OUT PC02 01...

Page 39: ...gnal 1KHz Sinewave ADC SCLK ICA01 7 DAC SDIN ICA02 1 DAC MCLK ICA02 4 DAC L RCLK ICA02 3 DAC SCLK ICA02 2 ADC SDOUT ICA01 4 ADC MCLK ICA01 2 ADC L RCLK ICA01 8 DAC Audio Output ICA02 7 10 ADC Audio In...

Page 40: ...Tray In Out ICF01 173 174 XF01 CF52 01 CKE ICF02 34 On Off 3 3V MT1818 Reset CLK ICF02 35 FLASH ADDR ICF04 25 SLIN1 2 ICF08 28 29 SLO 1 ICF08 36 37 SPIN PWM5 ICF01 14 UVW DiscPlay PF03 9 10 11 LDIN PW...

Page 41: ...14 2 3 2 3 2 3 15 2 5 2 5 2 5 16 2 4 2 4 2 4 17 2 4 2 4 2 4 18 2 4 2 4 2 4 19 4 9 4 9 4 9 20 1 0 1 0 1 0 21 2 4 2 4 2 4 22 1 4 1 4 1 4 23 2 4 2 4 2 4 24 2 4 2 4 2 4 MODE A SW IC101 PIN No STOP REC PLA...

Page 42: ...41 DISASSEMBLY DW Q73D2N LS DVR06 DVR08 DG R520 DG R521...

Page 43: ...42 disassembly DVR07...

Page 44: ...43 TROUBLESHOOTING D806 D809 PJ822 is 0 voltage Check Q821 Q827...

Page 45: ...n 9 25 Oscillation at IC701 pin 1 Check L703 pin 6 of PJ701 Exchange IC701 Check IC 701 pin 6 7 8 Check IC 701 pin 10 12 14 15 NO YES YES NO Check PCB NO NO KEY output at PORT of IC701 Is there KEY SE...

Page 46: ...72 DATA normal Is SIF Video output at TMI RF101 pin 13 16 normal Check IC 601 Check IC103 Check IC104 YES YES NO NO NO Is SIF signal at pin 5 of IC103 Is C SYNC signal at pin 58 of IC 601 Check TMI R...

Page 47: ...01 JK701 and RF101 Check POWER 5V circuit Check IC601 pin 30 31 NO YES YES NO NO YES Is Data clock signal input at pin 9 10 of IC103 RF YES NO Check pin 10 11 of IC601 Is video signal at pin 3 of IC10...

Page 48: ...47 TROUBLESHOOTING...

Page 49: ...48 TROUBLESHOOTING 12 Pin 16 of IC101 at pin 5 of IC103 at pin 5 14 of IC101 at pin 1 12 of IC101 at pin 17 18 of IC103 at pin 9 10 of IC103 at pin 20 of IC101 MODE P201 P201 P201...

Page 50: ...49 TROUBLESHOOTING...

Page 51: ...50 TROUBLESHOOTING...

Page 52: ...51 TROUBLESHOOTING...

Page 53: ...52 TROUBLESHOOTING...

Page 54: ...53 TROUBLESHOOTING...

Page 55: ...54 PCB CIRCUIT BOARD Analog Board parts...

Page 56: ...55 PCB CIRCUIT BOARD Power Board parts...

Page 57: ...56 PCB CIRCUIT BOARD Front pannel parts DW Q73D2N LS DVR06 DVR08 DG R520 DG R521...

Page 58: ...57 PCB CIRCUIT BOARD Front pannel parts DVR07...

Page 59: ...58 PCB CIRCUIT BOARD Mpeg SYSTEM parts...

Page 60: ...59 PCB CIRCUIT BOARD Mpeg Video parts...

Page 61: ...60 PCB CIRCUIT BOARD Mpeg Audio parts...

Page 62: ...61 PCB CIRCUIT BOARD Mpeg Frontend parts...

Page 63: ...REMARK C137 HCFH104ZBA CCHIPCERA 25VY5V0 1MFZ1608 C140 HCFH104ZBA CCHIPCERA 25VY5V0 1MFZ1608 C150 HCFH104ZBA CCHIPCERA 25VY5V0 1MFZ1608 C152 HCBK103KBA CCHIPCERA 50VX7R0 01MFK1608 C153 HCBK103KBA CCH...

Page 64: ...08 R221 HRFS133JBA RCHIP 1 16 13KOHMJ1608 R222 HRFS133JBA RCHIP 1 16 13KOHMJ1608 R223 HRFS225JBA RCHIP 1 162 2MOHMJ1608 LOC PARTCODE PARTNAME PARTDESCRIPTION REMARK R224 HRFS103JBA RCHIP 1 16 10KOHMJ1...

Page 65: ...C100A CELECTRO 16VRSM10MF5X7 C208 CEXF1C220A CELECTRO 16VRSM22MF 5X7 LOC PARTCODE PARTNAME PARTDESCRIPTION REMARK C209 CEXF1C100A CELECTRO 16VRSM10MF5X7 C210 CEXF1C470A CELECTRO 16VRSM47MF 5X7 TP C211...

Page 66: ...RECOPPER AWG221 0 65TINCOATING LOC PARTCODE PARTNAME PARTDESCRIPTION REMARK JP046 85801065GY WIRECOPPER AWG221 0 65TINCOATING JP047 85801065GY WIRECOPPER AWG221 0 65TINCOATING JP048 85801065GY WIRECOP...

Page 67: ...18V D709 DZN4148 DIODE 1N4148AUTO52MM LOC PARTCODE PARTNAME PARTDESCRIPTION REMARK D710 DZUZ5R1BSB DIODEZENER UZ 5 1BSB 4 97 5 18V D712 DZN4148 DIODE 1N4148AUTO52MM D713 DZN4148 DIODE 1N4148AUTO52MM J...

Page 68: ...A CCHIPCERA 25VY5V0 1MFZ1608 CF28 HCFH104ZBA CCHIPCERA 25VY5V0 1MFZ1608 CF29 HCFH104ZBA CCHIPCERA 25VY5V0 1MFZ1608 LOC PARTCODE PARTNAME PARTDESCRIPTION REMARK CF30 HCFH104ZBA CCHIPCERA 25VY5V0 1MFZ16...

Page 69: ...A 25VY5V0 1MFZ1608 CN31 HCFH104ZBA CCHIPCERA 25VY5V0 1MFZ1608 CN32 HCFH104ZBA CCHIPCERA 25VY5V0 1MFZ1608 LOC PARTCODE PARTNAME PARTDESCRIPTION REMARK CN34 HCFH104ZBA CCHIPCERA 25VY5V0 1MFZ1608 CN35 HC...

Page 70: ...5 ICCHIPREGULATOR AP1117E25A2 5V2 SOT 223 ICC03 1AP1117D18 ICCHIPREGULATOR AP1117D18A1 8V2 TO 252 ICD01 1TSB41AB1E ICCHIP1EEE1394 TSB41AB1PHPR48PINPQFPTYPEREEL LOC PARTCODE PARTNAME PARTDESCRIPTION RE...

Page 71: ...IP 1 16 20KOHMJ1608 RF21 HRFS103JBA RCHIP 1 16 10KOHMJ1608 RF22 HRFS103JBA RCHIP 1 16 10KOHMJ1608 LOC PARTCODE PARTNAME PARTDESCRIPTION REMARK RF23 HRFS103JBA RCHIP 1 16 10KOHMJ1608 RF24 HRFS822JBA RC...

Page 72: ...11 CEXF1C470A CELECTRO 16VRSM47MF 5X7 TP CA13 CEXF1C470A CELECTRO 16VRSM47MF 5X7 TP LOC PARTCODE PARTNAME PARTDESCRIPTION REMARK CA14 CEXF1C100A CELECTRO 16VRSM10MF5X7 CA16 CEXF1C100A CELECTRO 16VRSM1...

Page 73: ...L824 56C220K686 COILCHOKE 22UHK27 5X0 4D Q821 TZTC3205Y TR KTC3205Y 2236Y Q822 TZTC3205Y TR KTC3205Y 2236Y Q823 TZTC3205Y TR KTC3205Y 2236Y Q826 TZTC3198Y TRANSISTOR KTC3198Y 1815Y AUTO LOC PARTCODE P...

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