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LG RC-185, Руководство по обслуживанию

LG RC-185 - мощный шасси с множеством функций и инновационным дизайном. Получите полное представление о вашем устройстве, загрузив бесплатное сервисное руководство на manualshive.com. Этот мануал поможет вам максимально эффективно использовать все возможности вашего устройства.

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CONTENTS

SECTION 5

RS-01A LOADER PART

ELECTRICAL TROUBLESHOOTING GUIDE

......................................................................................................5-2

THE DIFFERENCE OF DVD-R/RW, DVD+R/RW DISCS AND DVD-ROM

..............................................5-15

1. RECORDING LAYER .................................................................................................................................................5-15

2. DISC SPECIFICATION...............................................................................................................................................5-16

3. DISC MATERIALS ......................................................................................................................................................5-16

4. ORGANIZATION OF THE INNER DRIVE AREA, OUTER DRIVE AREA, LEAD-IN ZONE AND 

LEAD-OUT ZONE.......................................................................................................................................................5-20

HOW TO USE TEST TOOL

.......................................................................................................................................5-24

1. ALPC MEASUREMENT SYSTEM..............................................................................................................................5-24

2. ALPC PROGRAM  ......................................................................................................................................................5-24

3. EXECUTE ALPC PROGRAM.....................................................................................................................................5-25

4. OPTICAL POWER SETTING .....................................................................................................................................5-27

5. CONFIRM OPTICAL POWER SETTING PARAMETER ............................................................................................5-28

6. OPTICAL POWER SETTING PARAMETER RANGE ................................................................................................5-29

7. ATTACHMENT. OPTICAL POWER MEASUREMENT ...............................................................................................5-30

INTERNAL STRUCTURE OF THE PICK-UP

......................................................................................................5-31

1. BLOCK DIAGRAM OF THE PICK-UP(LPC-812R)  ...................................................................................................5-31

2. PICK UP PIN ASSIGNMENT .....................................................................................................................................5-32

3. SIGNAL DETECTION OF THE P/U ...........................................................................................................................5-33

DESCRIPTION OF CIRCUIT

.....................................................................................................................................5-34

1. ALPC (AUTOMATIC LASER POWER CONTROL) CIRCUIT ....................................................................................5-34

2. FOCUS/TRACKING/SLED SERVO CIRCUIT ............................................................................................................5-35

3. SPINDLE SERVO CIRCUIT .......................................................................................................................................5-37

MAJOR IC INTERNAL BLOCK DIAGRAM

.........................................................................................................5-38

LIC121 (AN22113A) : FEP(RF) ANALOG SIGNAL PROCESSOR ................................................................................5-38

IC301 (BD7956FS) : CD-ROM/DVD-ROM 7CH POWER DRIVER ...............................................................................5-41

CIRCUIT DIAGRAMS

..................................................................................................................................................5-42

1. DSP CIRCUIT DIAGRAM ...........................................................................................................................................5-42 

2. RF CIRCUIT DIAGRAM .............................................................................................................................................5-44

3. DRIVE CIRCUIT DIAGRAM .......................................................................................................................................5-46

CIRCUIT VOLTAGE CHART

.....................................................................................................................................5-48

PRINTED CIRCUIT DIAGRAMS

..............................................................................................................................5-50

1. MAIN P.C.BOARD(TOP VIEW)  .................................................................................................................................5-50

2. MAIN P.C.BOARD(BOTTOM VIEW)  .........................................................................................................................5-52

Содержание RC-185

Страница 1: ...SERVICE MANUAL LG RC 185 MODEL ...

Страница 2: ...1 1 SECTION 1 SUMMARY CONTENTS PRODUCT SAFETY SERVICING GUIDELINES FOR VIDEO PRODUCTS 1 2 SERVICING PRECAUTIONS 1 3 THE STEPS FOR CHANGE THE OPTION CODE 1 4 UP DATING PROGRAM 1 5 SPECIFICATIONS 1 7 ...

Страница 3: ...der splashes or sharp solder points Be certain to remove all loose foreign par ticles 4 Check for physical evidence of damage or deterioration to parts and compo nents for frayed leads or damaged insulation including the AC cord and replace if necessary 5 No lead or component should touch a high current device or a resistor rated at 1 watt or more Lead tension around protruding metal surfaces must...

Страница 4: ...ive Parts include Metal panels Input terminals Earphone jacks etc Electrostatically Sensitive ES Devices Some semiconductor solid state devices can be damaged easily by static electricity Such components commonly are called Electrostatically Sensitive ES Devices Examples of typical ES devices are integrated circuits and some field effect transistors and semiconductor chip components The following ...

Страница 5: ...capture like figure 1 And you have three choice 1 Main It s mean if you chose this it ll up dating only DVD prgram 2 Loader It s mean if you chose this it ll up dating only Loader program 3 ALL It s mean if you chose this it ll up dating DVD and Loader program If you format like number 2 you ll not see capture like figure 1 that give you choices you have no choice only update DVD program 1 5 UP DA...

Страница 6: ...and New CD Write Version and Press REC key once more 6 The LOADER update will be on progress And tray will open 7 Remove the disc and wait until finish 8 The tray will be close and open automatically after completing UNDER UPDATE 100 9 Turn off the unit 10 Turn on again the unit is operation with new software FORMAT NO 2 1 Press POWER KEY to turn on 2 After booting insert the upgrade disc and you ...

Страница 7: ...ormat Dolby Digital Playback Frequency response DVD PCM 48 kHz 8 Hz to 22 kHz CD 8 Hz to 20 kHz DVD PCM 96 kHz 8 Hz to 44 kHz Signal to noise ratio More than 100 dB AUDIO OUT connector Harmonic distortion Less than 0 008 AUDIO OUT connector Dynamic range More than 95 dB AUDIO OUT connector Inputs AERIAL IN Aerial input 75 ohms VIDEO IN 1 0 Vp p 75 ohms sync negative RCA jack x 1 SCART x 2 AUDIO IN...

Страница 8: ...2 1 SECTION 2 EXPLODED VIEWS CONTENTS EXPLODED VIEWS 2 2 1 CABINET AND MAIN FRAME SECTION 2 2 2 DECK MECHANISM SECTION RS 01A 2 3 3 DECK MECHANISM SECTION D37 N 2 4 4 PACKING ACCESSORY SECTION 2 7 ...

Страница 9: ...BLE3 CABLE8 CABLE7 CABLE6 CABLE2 CABLE1 CABLE4 CABLE5 CABLE9 A53 A47 A52 274 469 323 321 324 324 A54 A00 300 250 272 463 463 463 470 457 465 465 268 A60 A43 468 452 452 452 OPTIONAL PART OPTIONAL PART KARAOKE OPTIONAL PART KARAOKE ONLY OPTIONAL PART OPTIONAL PART OPTIONAL PART MEMORY SMPS JUNCTION HDMI DVD VCR F A50 OPTIONAL PART RC19 S A55 OPTIONAL PART OPTIONAL PART RC17 18 S A50 ...

Страница 10: ...TION RS 01A 1034 1030 1025 1041 1432 1437 1434 1032 1033 1038 1011 1432 1020 1036 1432 Main C B A 1001 1431 1003 1002 1026 A001 A60 A002 1016 1433 1017 1013 1015 1012 1439 1047 1048 1046 1014 1018 1019 1043 1045 1044 1042 A005 ...

Страница 11: ...2 4 3 DECK MECHANISM SECTION D37 N 1 FRONT LOADING MECHANISM SECTION 100 A21 A23 A24 032 109 A22 054A 054 115 116 110 112 113 114 103 105 102 106 107 ...

Страница 12: ...2 5 3 DECK MECHANISM SECTION D37 N 2 MOVING MECHANISM SECTION 1 008 011 031 079 017 032 024 406 031 021 028 029 026 A03 027 022 003 004 006 007 014 015 009 409 013 016 012 OPTIONAL PART A01 405 ...

Страница 13: ...2 6 3 DECK MECHANISM SECTION D37 N 3 MOVING MECHANISM SECTION 2 052 517 061 056 518 052A 055 410 032 077 076 078 060 051 064 A11 A12 067 066 065 068 069 070 023 080 058 ...

Страница 14: ...ESSORY SECTION BATTERY 808 BAG 804 PACKING 803 806 INSTRUCTION ASSEMBLY CABLE COAXIAL 810 CABLE ASS Y RF 801 REMOCON 900 BOX CARTON 802 PACKING 803 811 812 PLUG ASS Y 1WAY PLUG ASS Y 2WAY OPTIONAL PARTS 821 SCART CABLE ...

Страница 15: ...C BOARD HDMI MODEL ONLY 3 62 5 KARAOKE P C BOARD KARAOKE MODEL ONLY 3 62 6 KEY P C BOARD 3 64 VDR PART VDR ELECTRICAL TROUBLESHOOTING GUIDE 3 66 1 POWER SMPS CIRCUIT 3 66 2 NO COMPONENT VIDEO SIGNAL WHEN PLAYING DISC 3 69 3 NO COMPOSITE S VIDEO SIGNAL WHEN PLAYING DISC 3 70 4 NO TV EXTERNAL INPUT VIDEO SIGNAL 3 71 5 WHEN PLAYING DISC NO AUDIO OUTPUT 3 72 6 NO OPTICAL DIGITAL OUTPUT 3 73 7 NO TUNER...

Страница 16: ... 2 GND 2 PMS01 1 REG12 V 1 P102 VDR BOARD 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 GND 15 IORDY 14 GND 13 DMACK 12 GND 11 INT_ATA 10 NC 9 ATA_A1 8 NC 7 ATA_A0 6 ATA_A2 5 CS1FX 4 CS3FX 3 NC 2 J2 GND 1 PMC01 HD_ATA3 30 HD_ATA12 29 HD_ATA2 28 HD_ATA13 27 HD_ATA1 26 HD_ATA14 25 HD_ATA0 24 HD_ATA15 23 GND 22 NC 21 DMARQ 20 GND 19 DIO...

Страница 17: ... SW signal to the starting point of the ver tical synchronized signal to 6 5H 0 5H 416µs 1H 64µs PG Adjustment Method a 1 Playback the SP standard tape b 2 Wait for 3seconds with F P REC key and PLAY key presseed at the same time Digitron c 3 Repeat the above step No b 2 then it finishes the PG adjusting automatically Digitron PG d 4 Stop the playback then it goes out of PG adjusting mode after mo...

Страница 18: ... D102 normal Check or Replace the D102 Replace the D121 Replace the IC103 Replace the D126 Replace the D129 Replace the D130 Replace the D127 Replace the D128 YES YES YES YES YES YES YES YES YES YES YES Is the Vcc 11V 18V supplied to IC101 Pin2 NO Is the D121 normal Is there about 2 5V at the IC103 Pin1 Is the D126 normal Is the D129 normal Is the D130 normal Is the D127 normal Is the D128 normal ...

Страница 19: ... Q126 Is the Vcc 13V sup plied to Q126Collector Is the Vcc 33V sup plied to Q126 Base Is the Q126 Nomal Check or Replace the D126 NO NO NO YES YES YES NO VFD Check or Replace the R107 Is the R107 Normal Is the D128 Normal NO Check or Replace the D128 Check or Replace the ZD151 NO NO YES Is the ZD151 Normal Check or Replace the D127 YES YES No 33V Check or Replace the D130 Is the Vcc 33V sup plied ...

Страница 20: ...D129 Is the Vcc 30V supplied to Q120 Collector Is the Vcc 33V supplied to Q121 Collector Is the Vcc 30V sup plied to Q120 Base NO NO Check or Replace the ZD153 NO Check the HSR H signal from µ com Check or Replace the Q121 Q122 33V line YES YES Check or Replace the Q120 YES ...

Страница 21: ... 5 3VA troubleshooting Check IC501 Pins86 87 88 89 Do T UP Reel Pulses appear at the Q501 Base terminal Replace the T UP Reel Sensor RS501 Check the CST SW and the peripheral circuitry Replace the IC501 The unstable loading of a Cassette tape Does the H signal appear at IC501 Pin32 during inserting the CST Does the L signal appear at IC501 Pin19 while inserting the CST Check the Deck Mechanism Not...

Страница 22: ...the DFG Pulses appear at PMC01 Pin11 Replace the Cap M Aren t the foil patterns and the Components between IC501 Pin65 and PMC01 Pin11 shorted Replace the IC501 Refer to 2 No 12VA of Power section Do the Drum PWM Pulses appear at IC501 Pin34 Aren t the foil patterns and the Components between IC501 Pin34 and PMC01 Pin12 shorted Do the DFG Pulses appear at IC501 Pin65 Do the Drum PWM Pulses appear ...

Страница 23: ...Does the CFG signal come into IC501 Pin67 Aren t the foil patterns and Components between IC501 Pin33 and PMC01 Pin9 short 2 SERVO CIRCUIT 3 When the Capstan Motor doesn t run NO NO NO YES YES YES When the Capstan Motor doesn t run Does 12VA appear at PMC01 YES Replace the IC501 YES NO NO YES Refer to SMPS CAPSTAN 12Volt Trouble Shooting Aren t the foil patterns and component between IC501 Pin67 a...

Страница 24: ... applied to IC501 Pin36 Does CLOCK LED change when a function button is pressed Refer to SMPS 5 3VA Trouble Shooting Replace the defective switches YES NO NO 2 SERVO CIRCUIT 4 Keys do not work VCR ELECTRICAL TROUBLESHOOTING GUIDE ...

Страница 25: ...er Circuit Is I2 C BUS signal applied to the IC301 Pins73 74 Check C361 AGC Replace IC301 Check the Video Buffer Q905 Check the DVD Board Video path Check the System Circuit Refer to SYSTEM I2 C BUS CHECK Trouble Shooting YES YES YES YES YES YES YES NO NO NO NO NO Does the Video signal appear at the IC802 Pin29 IC802 Pins2 4 Vcc Pins32 33 I2 C BUS YES NO NO Does the Video signal appear at the IC90...

Страница 26: ...he V H S W level Check R303 R304 Refer to SYSTEM I2 C BUS CHECK Trouble Shooting Is the V H S W signal applied to IC301 Pin80 Is the V H S W H about 3 4V at the IC301 Pin80 Clean the Drum Check the path of the Y Luminace RF signal Check the C327 Check the path of the Y Luminace RF signal Check the C312 Does the Y Luminance RF signal appear at IC301 Pin79 Is the Y Luminance Video waveform showed up...

Страница 27: ...l appear at IC301 Pin25 Check the line of the 5 0V 5 3VA Line Power Circuit Replace the X301 Check the Color Pass Does the X301 4 43MHz osxillate Replace the IC301 Does the Color signal appear at IC301 Pin48 Replace the IC301 NO YES Does the waveform RF signal appear at IC301 pin76 Replace the IC301 NO YES YES YES NO NO NO VCR ELECTRICAL TROUBLESHOOTING GUIDE ...

Страница 28: ...n27 the D301 Replace the IC301 Is the REC H signal about 4V applied to the Q307 Check the circuit of the IC301 Pin85 86 Check REC Luminace pass Color pass Does the REC RF signal appear at the IC301 Pins88 89 94 95 NO YES Is 5 0V 5 3VA applied to the IC301 Pins22 41 47 50 52 60 84 Check the line of the 5 0V 5 3VA line Power Circuit NO YES Does PB Mode operate nomally NO Check PB Mode YES Check the ...

Страница 29: ... the JK901 JK905 Check the Scart1 Jack SK905 Scart1 Audio in Pin2 6 NO NO Check the Scart2 Jack SK905 Scart2 Audio in Pin2 6 NO Check the front Jack Check the Power 5 0V 12V YES NO Check the IC501 Pins17 18 NO Replace IC801 NO Check the Audio of PVM02 Pins9 11 Check the Pcb Pattern between IC801 Pin16 17 with PVM02 Pins9 11 NO YES YES Check the Audio of PVM02 Pins5 7 Check the DVD Board Audio path...

Страница 30: ...Check IC801 Pin42 Data Pin43 Clock YES Do Audio Signals appear at IC801 Pin16 L CH 17 R CH YES Do Audio Signals appear at IC802 Pin25 L CH 21 R CH YES Do Audio Signals appear at JK901 JK905 YES Check the IC802 Pins6 12 Check Power 5 0V 12V NO Check IC501 Pin26 A H SW NO NO Check the parts of µ COM IC501 Pins17 18 NO Check the Connection at P3D01 Pins7 9 NO Check the Audio PVM02 Pins5 7 NO Check th...

Страница 31: ... appear at IC801 Pins16 17 YES Do FM Audio signals appear at IC801 Pin36 YES Check the Contact Point of Drum Connector if good then Replace the Drum YES Check Power 5V 12V NO Check ports of µ COM IC501 pins 17 18 Check Audio input signal of IC801 Pins2 3 TU A 4 5 DVD A 6 7 AV1 A 10 11 AV3 A NO Replace IC801 NO NO VCR ELECTRICAL TROUBLESHOOTING GUIDE ...

Страница 32: ...f µ COM Pin18 Does the data signal appear at TU701 Pin13 Replace Tuner Check the DVD Board Video Path Replace the IC802 Replace the IC901 Does the video signal appear at IC802 Pin28 NO NO YES YES YES YES YES YES YES YES YES Check the Pattern between IC901 Pin30 with JK905 Pin19 Does the Video signal at the IC802 Pin31 Check the Pattern between TU701 Pin19 and IC802 Pin28 Replace the IC802 NO YES D...

Страница 33: ...1501 Pin2 YES Check the oscillator of IC1501 Pins66 67 YES Check the Audio of IC751 Pins30 31 YES Check the Audio of IC1501 Pins184 185 YES Check the Audio of IC801 Pins16 17 YES YES Check the Tuner SIF of TU701 Pin16 NO Replace X1501 NO Check the IIC Clock and Data at IC1501 Pins59 60 NO Check the signal flow from IC1501 Pins184 185 to IC801 Pins2 3 NO Check the IIC Clock and Data at IC801 Pins42...

Страница 34: ...BLOCK D126 BC102 R126 C126 RECTIFIER SMOOTING BLOCK D128 C128 5 3VA REG5V 3 3V 5 0V 12VL 33V 5V REG BLOCK Q162 ZD161 C163 R162 C162 2 5V REG BLOCK D156 IC154 R154 C154 12V REG BLOCK IC155 R155 C155 3 3V REG BLOCK IC153 C152 R153 33V S W BLOCK Q161 R161 R171 R175 R176 5V REG BLOCK IC156 C156 R156 PWR CTL H 5 0VL 12V REG BLOCK Q165 ZD152 C164 R164 R165 C153 Cap Vcc PWR CTL BLOCK Q163 R173 R163 RECTI...

Страница 35: ...EO OUT PAL NTSC TU701 PAL NTSC TUNER 5 3VA MOD_AUDIO MODULATOR_4í Lí 5 0V VCRí Hí MOD_VIDEO TU_SECAMí Hí IIC_CLK IIC_DATA AFT TU_MONO_A SIF 33V TU_VIDEO RF AGC TUNER BLOCK 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 VSS A VSS D N C SCL SDA CSO VCS N C DAVN EHB VDD A VDD D N C CVBS IREF VCO 1 PD2 VCO2 N C PD 1 TI 5 3VA S W_VIDEO DAVí Lí IIC_DATA IIC_CLK IC7V1 SDA5650X VPS BLOCK 3 22 3 23 2 T...

Страница 36: ...UFFER AVCP VIDEO MICOM VIDEO IC501 MICOM IC302 LA70100 SECAM IC802 MM1443 CANAL IC901 BH7868FS 6dB AMP JK905 SCART JACK IIC CLK IIC DATA 2V 1V 2V SEC REC COLOR V OUT DVD CVBS AV2 AV1 TU MIXED Y C FRONT I O JACK SUPER C SUPER Y MIXED Y C DVD CVBS 77PIN 82PIN 29PIN SEC MES DET ëHí IIC CLK IIC DATA 19PIN 21PIN ...

Страница 37: ...6 3 27 DVD AUDIO VCR Hi Fi AMP SCART1 AV1 SCART2 AV2 FRONT JACK AV3 TUNER KARAOKE BOARD SIF TUNER AUDIO OUT IN IN VCR AUDIO WITH RCA OUT OUT WITH RCA TUNER Hi Fi CANAL IC TUNER Hi Fi 5 Hi Fi BLOCK DIAGRAM ...

Страница 38: ... VCC MAIN CAP_PWM CTL CTL CFG CAP_REV H L M_CTL V ENV V H SW DPG FG DV SYNC 38 37 OSCO XI XO OSCI 40 41 74 75 67 21 19 82 23 34 65 24 C KILLER 96 33 20 DRUM_PWM 51 VCC OSD 85 END_SENSOR 5 73 A VCC servo A D TO FROM AUDIO Hi Fi TO FROM TU IF 17 81 IIC_DATA IIC_CLK AFT 18 64 TU_SECAM H TU_SECAM_VL H 63 P FAIL 4 A_MUTE H A_ENV A_H SW 58 18 17 IIC_CLK IIC_DATA 27 50 REC H 84 SEC_DET H 98 MIC_DET H XLI...

Страница 39: ...75 Drive R G B Y C RCA Pr SCART R RCA Y SCART G RCA Pb SCART B R G B VCR MICOM RGB_S W íHí DECODER BOX C DET ë Hí Y C AV1 JACK TV SET CVBS MODULATOR DVD_CVBS Y C SPI_interface DVD_CVBS AV1 CVBS AV2 JACK AVCP_VIDEO DVD BOARD AV1 SCART RGB_OUT ëH í Pin8 Pin16 SCART ëHí 7 SCART SWICH BLOCK DIAGRAM ...

Страница 40: ...th respect to risk of fire or NOTE electricial shock 13VA No Power D124 is Defective 5 5VA No Power D128 is Defective 3 8VA No Power D127 is Defective CIRCUIT DIAGRAMS 1 POWER SMPS CIRCUIT DIAGRAM IMPORTANT SAFETY NOTICE WHEN SERVICING THIS CHASSIS UNDER NO CIR CUMSTANCES SHOULD THE ORIGINAL DESIGN BE MODIFIED OR ALTERED WITHOUT PERMISSION FROM THE LG ELECTRONICS CORPORATION ALL COMPONENTS SHOULD ...

Страница 41: ...3 34 3 35 A 1 2 3 4 5 6 7 8 9 10 11 12 B C D E F G H I J K L M N O P Q R S T 2 TUNER CIRCUIT DIAGRAM ...

Страница 42: ...3 36 3 37 A 1 2 3 4 5 6 7 8 9 10 11 12 B C D E F G H I J K L M N O P Q R S T 3 A V CIRCUIT DIAGRAM ...

Страница 43: ...3 38 3 39 A 1 2 3 4 5 6 7 8 9 10 11 12 B C D E F G H I J K L M N O P Q R S T 4 Hi Fi CIRCUIT DIAGRAM ...

Страница 44: ...3 40 3 41 A 1 2 3 4 5 6 7 8 9 10 11 12 B C D E F G H I J K L M N O P Q R S T 5 SYSTEM CIRCUIT DIAGRAM ...

Страница 45: ...3 42 3 43 A 1 2 3 4 5 6 7 8 9 10 11 12 B C D E F G H I J K L M N O P Q R S T 6 SCART CIRCUIT DIAGRAM SCART MODEL ONLY ...

Страница 46: ...3 44 3 45 A 1 2 3 4 5 6 7 8 9 10 11 12 B C D E F G H I J K L M N O P Q R S T 7 KEY CIRCUIT DIAGRAM ...

Страница 47: ...3 46 3 47 8 KARAOKE CIRCUIT IAGRAM KARAOKE MODEL ONLY A 1 2 3 4 5 6 7 8 9 10 11 12 B C D E F G H I J K L M N O P Q R S T ...

Страница 48: ...3 48 3 49 9 HDMI CIRCUIT DIAGRAM HDMI MODEL ONLY A 1 2 3 4 5 6 7 8 9 10 11 12 B C D E F G H I J K L M N O P Q R S T ...

Страница 49: ...mVp p IC301 Pin 73 PB REC mode 5Vp p IC301 Pin 74 PB REC mode 5Vp p IC301 Pin 77 REC mode 340mVp p IC301 Pin 42 PB mode 300mVp p IC301 Pin 53 PB mode 400mVp p IC301 Pin 80 PB mode 3 6Vp p IC301 Oscilloscope Waveform IC501 Waveform Photographs V HSW IC501 Pin 23 1V 10mS REC PB MODE DV SYNC IC501 PIN 24 1V 100uS QUE REV MODE CTL IC501 Pin 74 1V 10mS CTL IC501 Pin 75 1V 10mS DFG DFG IC501 PIN 65 1V 1...

Страница 50: ...4 94V 26 4 92V 4 92V 27 20m 20m 28 5 02V 5 02 29 4 98V 4 98V 30 4 84V 4 84V 31 5V 5V 32 0V 0V 33 4 98V 4 94V 34 0V 5V 35 5 02V 0V 36 3 16V 4 94V 37 5 7V Da Clk 5 5 38 0V 5 7V 39 520m 0V 40 4 84V 520m 41 4 83V Da Clk 5 62 42 4 86V 4 86V 43 0V 0V 44 5 02V 5V 45 0V 0V 46 3 94V 3 94V 47 2 88V 2 88V 48 0V 0V 49 0 98V 2 94V 50 1 84V 1 94V 51 0 98V 4 78V 52 3 28V 3 28V 53 2 38V 2 38V 54 2 52V 2 54V 55 1 ...

Страница 51: ...CP Q301 0 170V 0 170V 0 000V 0 160V 0 160V 0 000V Q302 4 980V 0 170V 4 980V 4 970V 0 160V 4 970V Q303 0 010V 4 960V 0 040V 0 010V 4 960V 0 030V Q305 0 010V 0 010V 0 710V 0 010V 0 010V 0 710V Q306 0 010V 0 010V 0 720V 0 010V 0 010V 0 720V Q307 4 990V 4 940V 0 040V 4 960V 4 910V 0 030V Q310 2 650V 1 710V 1 980V 3 080V 0 010V 2 410V HI FI CANAL F JACK AMP Q801 4 980V 0 010V 4 980V 4 960V 0 010V 4 950...

Страница 52: ...3 56 3 57 PRINTED CIRCUIT DIAGRAMS 1 VCR P C BOARD TOP VIEW ...

Страница 53: ...3 58 3 59 2 VCR P C BOARD BOTTOM VIEW ...

Страница 54: ...3 60 3 61 3 SMPS P C BOARD 4 HDMI P C BOARD HDMI MODEL ONLY TOP VIEW BOTTOM VIEW ...

Страница 55: ...3 62 3 63 5 KARAOKE P C BOARD KARAOKE MODEL ONLY ...

Страница 56: ...3 64 3 65 6 KEY P C BOARD 8 TOOL 9 TOOL 7 TOOL ...

Страница 57: ......

Страница 58: ...e the D102 Replace the D123 Replace the IC103 Replace the IC102 Replace the D122 Replace the D126 YES YES YES YES YES YES YES YES YES Is Vcc 13V 27V supplied to IC101 Pin2 NO Is the D123 normal Is there about 2 5V at the IC103 Pin1 Is the IC102 normal Is the D122 Normal Is the D126 Normal NO NO NO Replace the D127 Replace the D128 Replace the D124 YES YES YES YES Is the D127 Normal Is the D128 Nor...

Страница 59: ...cc 34V supplied to Q161 Emittor Is the Q161 Base L NO Check the PWR CTL H signal from µ com NO YES Check or Replace the Q161 YES No REG 12V Check or Replace the D122 Is the Vcc 13V supplied to Q165 collector Is the Q165 Base H NO Check the 33V Line or ZD152 NO YES Check or Replace the Q165 YES Check or Replace the D126 NO YES No Cap Vcc or 13 5VA Replace the D122 Is the D122 Normal Power Line of M...

Страница 60: ... IC154 pin4 H NO Check the DVD CTL H signal from µ com NO YES Check or Replace the IC154 YES No 12VL Check or Replace the D124 Is the Vcc 13 5V sup plied to IC155 pin 1 Is the IC155 pin4 H NO Check the DVD CTL H signal from µ com NO YES Check or Replace the IC155 YES Check or Replace the D156 NO YES No 5VL Check or Replace the D128 Is the Vcc 5 5V sup plied to IC156 pin 1 Is the IC156 pin4 H NO Ch...

Страница 61: ...901 15 Check input C962 C961 SW901 Replace SW901 Check IC901 Y 23 24 pin Pb 17 18 pin signal check IC901 Replace IC901 11Pin Check input C963 YES YES YES NO NO NO NO NO NO NO NO YES YES NO YES YES NO L1311 L1312 L1313 Check Signal in DVD Board Check IC1101 Power and Other Circuits YES YES PMV02 PMD02 FFC Cable check YES VDR ELECTRICAL TROUBLESHOOTING GUIDE ...

Страница 62: ...01 Y 26 27 pin C 32 pin signal check IC901 Replace IC901 29 30 Pin No Signal IC901 Replace YES YES NO NO YES NO NO NO NO NO YES YES YES YES YES COMPOSITE No Signal R911 IC901 4 Check input C967 YES NO NO L1308 Check Signal NO Check IC1101 Power and Other Circuits NO S VIDEO No Y Signal L913 IC901 8 Check input C965 S VIDEO No C Signal LP12 IC901 4 Check input C967 ...

Страница 63: ... Q310 collector Signal power 12 V C909 Q905 Check circuit L1514 Check signal YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES IC1501 64 HIGH RST_VDEC R1564 R1456 R1458 signal YES NO When reset IC501 59 60 Check I2 C Clk Data Check R1515 R1516 Signal and 3 3V 1 8V level YES NO Check IC1501 108 VI_CLK Check X1501 clock oscillated YES NO NO When playing DISC no COMPONENT COMPOSIT S...

Страница 64: ...in32 33 SLC CLK Only Without SCART model YES YES 5 WHEN PLAYING DISC NO AUDIO OUTPUT IC15A1 pin15 18 Audio_ out R L Is there a signal NO NO NO NO IC805 Pin14 19 Z_mute_R L IC501 pin58 A_mute_L R15C7 R15C8 on DVD PCB Is there a signal IC802 pin6 12 Is there a signal L905 L906 Is there a signal Check Cable connec tion TV Audio mute Check Q15C1 15C2 In DVD Board Q901 907 904 906 In VCR Board YES NO Y...

Страница 65: ...ICAL TROUBLESHOOTING GUIDE 6 NO OPTICAL DIGITAL OUTPUT R1101 R1122 Check PMV01 pin1 SPDIF_OUT NO Check FFC cable CHECK YES YES Check JK902 Optical cable connection YES IC1101 DEFECT NO Check or Replace the D126 NO YES ...

Страница 66: ...able and VCR part Check IC801 power and other circuits NO Check IC1501 power and other circuits NO Check IC15A1 power and other circuits NO Check AV_RST1 and power other circuits NO YES IC1501 198 199 Check audio signals Check IC1501 173 176 YES IC802 9 Check High YES Check IC15A1 1 4 YES YES Check IC802 power And Other circuits YES 7 NO TUNER AUDIO OUTPUT ...

Страница 67: ...Check audio signals Check IC802 power and other circuits NO Check AV_RST1 and power other circuits NO YES IC802 10 Check High YES Check IC802 power And Other circuits YES Check IC1501 power and other circuits NO IC1501 198 199 Check audio signals YES Check RST VDEC and power other circuits IC1501 64 Check High Check IC1501 power And Other circuits NO YES YES YES 8 NO EXTERNAL INPUT 1 2 3 AUDIO ...

Страница 68: ...R MIX_YC AV1_IN 2 Y C S_Jack 2 A_R L Stereo V_CVBS CVBS 3 YPbPr YPbPr VCR_A_R L Coaxial Optical COAXIAL OPTICAL 2 D_control D2 TUNER TU_AV_out TU_AV_in 2 2 Y C_IN 2 2 4 8 IN 2 MEMORY SLOT V_VCR SIF A_TUNER Y Pb Pr A_DVD 2 V_DVD 2 3 ATA_INT IORDY DMARQ SIF RGB_IN 3 RGB_SYNC MUTE_LR 2 Y C 2 MIC_DET MIC_IN 2 HDMI BOARD VO_D 15 0 MCLKO VO_CLK 16 IRQ SCL SDA RST KARAOKE BOARD MIC_DET MIC_IN 2 MEM_RST W...

Страница 69: ...BS Y C Y Pb Pr CVBS Y C G_Y B_Pb R_Pr DAC 1 6 SIF TU_A_L R_OUT SUPER_Y C MIX_YC RGB_IN VCR_V_IN SIF TU_A_L R_OUT VCR_A_L R_IN VCR_A_L R_IN AI_D0 AI_SCLK AUDIO VIDEO SAA7137 HDMI BOARD A0_IEC958 GPIO3 VO_D 15 0 VO_CLK HDMI_IRQ SCL SDA HDMI_RS T IDC_CLK DAT SPI_CS1 VO_CLK VO_D 15 0 AO_MCLKO DVD_A_L R_OUT DVD_A_L R_OUT AUDIO CS4351 AO_D0 AO_SCLK AO_MCLKI AO_MCLKO IEC958 TP FLA SH Memory Latch 74LVT16...

Страница 70: ... FLASH ROM 74LVC04 74LVC08 74LVC32 74LVT16373 EEPROM L1601 L1602 L1603 TSB41AB1 L1100 12 V L1305 L1302 L1509 D3V3 L1303 L1300 1 25V CORE L1104 L1105 L1109 L1106 DAC_Vdd USB_Avdd PLL L1501 L1504 L1506 L1510 1v8_analog 1v8_XTAL 1v8_mem0 1v8_mem1 1v8_core 3v3_IO D3V3 L1511 3v3_audioDA L1512 3v3_audioAD L1502 3v3_analog L1503 3v3_PLL SAA7137 2 1V 12V CS4351 Memory card Board 74HCT125 L1107 REF Karaoke...

Страница 71: ...198 18 16 173 175 174 TU_A_L_OUT TU_A_R_OUT VCR_A_L_IN VCR_A_R_IN DVD_A_L_OUT DVD_A_R_OUT SIF AI_MCLKI R1123 176 AO_DO AO_FSYNC AO_SCLK R1101 R1105 R1106 1 2 3 AO_MCLKI 4 AO_MCLKO AUDIO DAC CS4351 R15C7 19 14 Z_MUTE_L Z_MUTE_R Q15C1 Q15C2 IEC958 VCR BOARD KARAOKE BOARD MIC_IN_L MIC_IN_R MIC_DET MIC_IN_L MIC_IN_R MIC_DET GPIO5 R1458 10 7 8 CE RST SCL SDA VDEC_IRQ R1550 GPIO2 IDC_CLK DAT 64 63 59 60...

Страница 72: ...OE2 LWE FCS0 BA 1 5 22 Ethernet BA 1 5 HD 0 15 HD 0 15 MEMORY SLOT MEMC_RST GPIO4 OE MEMC_OE FLASH_WE MEMC_WE MEMC_IRQ GPIO0 HD 0 15 BA 16 18 BA 20 74LVC04 CS0 ALE BA 20 BA 20 E5_CS2 CS2 ATA_1FX ATA_3FX 74LVC32 ETHER_IRQ MA 1 5 22 GPIO1 OE1 ETHER_WE E5_CS1 CS1 3V3D 3V3D SYS_RST RST WAIT 74LVC08 VCR BOARD DVD_RESET HIORDY WAIT_LAN ...

Страница 73: ...09 L1310 L1311 L1312 L1313 DAC1 DAC2 DAC3 DAC4 DAC5 DAC6 19 27 33 L1515 L1516 L1517 41 25 39 L1514 L1520 L1519 R_IN G_IN B_IN RGB_SYNC 49 17 L1518 L1521 MIXER VIDEO DECODER SAA7137 RR1501 VI_D 5 2 VI_D 7 4 VI_D 3 0 VI_CLK R1520 VI_CLK VCR BOARD VO_D 7 4 VO_D 11 8 VO_D 15 12 AR1106 AR1101 AR1105 AR1104 R1113 GPIO5 R1458 CE SCL SDA VDEC_IRQ R1550 GPIO2 IDC_CLK DAT 64 63 59 60 97 96 95 94 93 88 87 86...

Страница 74: ...3 82 7 DV1394 IN OUT BLOCK DIAGRAM DV1394 TSB41AB 1 PHY_DATA 7 0 PHY_CTL 1 0 PHY_LREQ PHY_LINK_ON PHY_CLK PHY_LREQ GPIO5 RST_PHY TP_A1 TP_A1 TP_B1 TP_B1 TP_A TP_A TP_B TP_B VCR BOARD DVD BOARD ...

Страница 75: ...AM 9_IN_2 HD 15 0 RESISTOR 74LVC32 IC6904 HD 15 0 BA 18 16 E5_ALE GPIOExt OE WE RST MEMC_OE WE RST HIORDY WAIT WAIT BA 21 20 CS2 IE5_CS2 2 BA 21 20 ATA_CON_SIG DMN8603 Host IF Blo ck Header H601 PCM 15 0 PA 2 0 HDIOW HDIOR HRSTSTA H_IORDY ...

Страница 76: ...3 84 3 85 CIRCUIT DIAGRAMS 1 BGA 308P CIRCUIT DIAGRAM A 1 2 3 4 5 6 7 8 9 10 11 12 B C D E F G H I J K L M N O P Q R S T ...

Страница 77: ...3 86 3 87 A 1 2 3 4 5 6 7 8 9 10 11 12 B C D E F G H I J K L M N O P Q R S T 2 DDR B TO B CONNECTOR CIRCUIT DIAGRAM ...

Страница 78: ...3 88 3 89 A 1 2 3 4 5 6 7 8 9 10 11 12 B C D E F G H I J K L M N O P Q R S T 3 POWER FLASH CONNECTOR CIRCUIT DIAGRAM ...

Страница 79: ...A 1 2 3 4 5 6 7 8 9 10 11 12 B C D E F G H I J K L M N O P Q R S T 3 90 3 91 4 RST CONTROL STATUS_REG ATAPI HOST_CPLD LATCH CIRCUIT DIAGRAM ...

Страница 80: ...3 92 3 93 A 1 2 3 4 5 6 7 8 9 10 11 12 B C D E F G H I J K L M N O P Q R S T 5 VIDEO AUDIO CODEC MSP CIRCUIT DIAGRAM ...

Страница 81: ...A 1 2 3 4 5 6 7 8 9 10 11 12 B C D E F G H I J K L M N O P Q R S T 3 94 3 95 6 DV1394 MEMORY HDMI CIRCUIT DIAGRAM ...

Страница 82: ... E5_Y_OUT PMV02 PIN22 E5_C_OUT PM02 PIN28 E5_R Pr_OUT PMV02 PIN24 E5_G Y_OUT PMV02 PIN26 E5_B Pb_OUT PMH01 PIN9 VO_CLK PNV01 PIN1 IEC958 IC1501 PIN176 AI_MCLKO IC1501 PIN175 AI_SCLK IC1501 PIN174 AI_FSYNC IC1501 PIN173 AI_D0 IC15A1 PIN1 AO_D0 IC1501 PIN87 VI_D1 PMV01 PIN3 SPI_CLK PMV01 PIN5 SPI_MISO PMV01 PIN4 SPI_MOSI PMV01 PIN6 SPI_CS ...

Страница 83: ...3 08 1 81 30 3 12 3 12 1 81 31 3 12 3 08 1 82 32 0 0 0 33 0 0 0 34 1 34 1 22 1 21 35 3 24 1 22 3 26 36 0 0 0 37 3 24 3 1 3 26 38 0 1 48 0 39 1 34 3 22 1 4 40 3 28 3 28 3 26 41 0 3 22 0 42 1 48 1 48 1 49 43 1 48 1 48 1 49 44 2 96 3 24 3 26 45 3 24 3 24 3 26 46 0 0 0 47 0 0 0 48 2 88 2 88 0 EE PB REC MODE PIN NO CIRCUIT VOLTAGE CHART 1 0 0 0 2 0 0 0 3 1 02 1 02 1 23 4 1 02 1 01 1 23 5 2 37 2 48 2 47...

Страница 84: ...3 100 3 101 PRINTED CIRCUIT DIAGRAMS 1 VDR P C BOARD TOP VIEW ...

Страница 85: ...3 102 3 103 2 VDR P C BOARD BOTTOM VIEW ...

Страница 86: ...11 DECK MECHANISM ADJUSTMENT Fixtures and tools for service 4 12 1 Mechanism Assembly Mode Check 4 13 2 Previous Preparation for Deck Adjustment 4 14 3 Torque Measuring 4 14 4 Guide Roller Height Adjustment 4 15 4 1 Prior Adjustment 4 15 4 2 Fine Adjustment 4 15 5 Audio Control A C Head Adjustment 4 16 5 1 Prior Adjustment 4 16 5 2 Tape Path Check between Pinch Roller and Take up Guide 4 17 5 3 Fi...

Страница 87: ...t A 5 T 17 19 Arm T up 1 hook A 5 T 20 Supporter capstan Chassis Hole A 6 B 17 18 21 Belt Capstan Motor Capstan3 screws A 6 B 22 Lever F R Locking Tab A 6 B 21 22 23 Clutch Assembly D37 Washer A 6 B 24 Gear Drive Gear Cam Washer Hook A 7 B 25 Gear Sector Hook A 7 B 21 26 Brake Assembly Capstan Chassis Hole A 7 B 21 22 23 27 Plate Slider Chassis Guide A 7 B 24 2526 21 22 23 28 Lever Tension 1 Hook ...

Страница 88: ...rate the flat cable from the Drum FPC and the Capstan Motor 2 Release 3 screws S1 on the bottom side of the chassis and separate the drum assembly 3 Release the hooks H1 H2 and separate both the holder FPC and the Cap FPC disassemble if necessary Fig A 1 Cautions in assembly of FPC Holder FPC Drum FPC Cap FPC Assembly shape seen in the reverse direction ...

Страница 89: ...SSEMBLY OF DECK MECHANISM 4 3 B E C Plate Top Arm Assembly F L Gear Assembly Rack F L Opener Door Holder Assembly CST B H3 A B Lever Assembly S W H4 E Fig A 2 Fig A 2 1 Fig A 2 2 Fig A 2 5 Fig A 2 6 Fig A 2 3 Fig A 2 4 ...

Страница 90: ...4 Disassembly of Gear Assembly Rack F L Fig A 2 3 1 Separate the hook H3 while leaning ahead the hook 3 after moving the gear assembly rack F L toward the arrow A direction 2 Separate the gear assembly rack F L toward the arrow B direction CAUTIONS For the assembly correspond the gear part of gear assem bly rack F L to the gear drive 5 Opener Door Fig A 2 4 1 Separate the opener door ahead from th...

Страница 91: ...Arm Assembly Cleaner Fig A 3 3 1 Separate the A part of Fig A 3 1 from the embossing of chassis and hold it up while turning it anti clockwise 11 Head F E Fig A 3 4 1 Separate the A part of the head F E from the emboss ing of chassis and hold it up while turning it anti clock wise 12 Base Assembly A C Head Fig A 3 5 1 Release a screw S5 and disassemble while holding it up Arm Assembly Cleaner Moto...

Страница 92: ...while holding it upward 14 Arm Assembly Tension Fig A 4 2 1 Release the spring tension the hook H7 from the arm assembly tension 2 After releasing the hook H8 of the base tension sepa rate it while holding it up CAUTIONS Spring used for both brake assembly T and arm assembly tension is used 2EA used 15 Reel S Reel T Fig A 4 3 1 Disassemble the reel S reel T while holding it up com parison between ...

Страница 93: ...se 17 Opener Lid Fig A 5 2 1 Release the B part of the opener lid from the embossing of chassis 2 Disassemble the opener lid upward while turning it anti clockwise 18 Arm Assembly Pinch Fig A 5 3 1 Hold the arm assembly pinch up 19 Arm T up Fig A 5 4 1 Turn the arm T up to release the anchor jaw H9 part of chassis and then hold it upward CAUTIONS For the assembly check the C part of the arm assemb...

Страница 94: ...y 90 deg clockwise with a driver for disassembly 21 Belt Capstan Fig A 6 2 Motor Capstan Fig A 6 3 1 Separate the belt Capstan 2 Undo 3 screws S6 on the bottom side of chassis and dis assemble it upward 22 Lever F R Fig A 6 4 1 Release the locking tab L1 and then disassemble it upward 23 Clutch Assembly D37 Fig A 6 5 1 Remove the washer W1 and then disassemble it upward Fig A 6 1 Fig A 6 2 Fig A 6...

Страница 95: ...or Fig A 7 3 1 Release the hook H11 of the gear sector and then hold the gear sector upward 26 Brake Assembly Capstan Fig A 7 4 1 Release the locking tab L2 on the bottom side of the plate slider and then disassemble it upward 27 Plate Slider Fig A 7 5 1 Disassemble the plate slider while holding it up 28 Lever Tension Fig A 7 6 1 Release the lever tension from the guide A of chassis while turning...

Страница 96: ...r assem bly P2 and the P3 are adjusted straightly and then corre spond the gear section groove A to the plate slider hole B 32 Base Assembly P2 Fig A 8 3 Base Assembly P3 Fig A 8 4 1 Disassemble the base assembly P2 downward while mov ing it toward the arrow A direction along with the guide hole of chassis 2 Disassemble the base assembly P2 downward while mov ing it toward the arrow B direction al...

Страница 97: ...ase tension from the embossing of chassis 2 Hold the base tension upward while turning it anti clock wise 35 Arm assembly Idler Jog Fig A 9 2 1 Push both B C parts in Fig A 9 2 toward the arrow direction 2 Disassemble the arm assembly idler upward CAUTIONS Take care to ensure that the D part in the drawing is not hung to chassis in disassembly Fig A 9 1 Fig A 9 2 ...

Страница 98: ...D00 D006 4 Torque gauge adaptor Part No D09 R001 5 Post height adjusting driver Part No DTL 0005 6 Type driver ø5 2 Alignment tape Part No NTSC DTN 0001 PAL DTN 0002 3 Torque gauge 600g Cm ATG Part No D00 D002 SRK VIDEO CASSETTE TORQUE METER VHT 303 S R K V H T S SRK V HT T 300 250 200 150 50 0 300 250 200 150 50 0 100 ...

Страница 99: ... frame and separate the deck assembly Check both the hole A of gear cam and the hole A of chassis correspond Fig C 1 5 Check the mode S W on the main P C board locates at a proper position as in B of the Fig C 1 6 Connect the deck to the main P C board and perform all types of test Gear Cam Gear Drive C Mode S W B Motor Assembly L D Gear Cam Chassis Hole Gear Cam Hole A A Fixtures and tools used V...

Страница 100: ...oles on the housing rail part of chassis to prevent detection of the end sensor If doing so proceeding to the stop mode is done In this status input signals of all modes can be received However operation of the Rewind and the Review is impossible since the take up reel remains at stop status and so cannot detect the reel pulse however possible for several seconds 2 Previous Preparation for Deck Ad...

Страница 101: ...e of oscilloscope to the RF envelope output point and the head switching output point 2 Tracking control playback Locate it at the center Set the RF output to the maximum value via the track ing control when such adjustment is completed after the drum assembly is replaced 3 Height adjusting screw Flatten the RF waveform Fig C 4 2 4 Move the tracking control playback to the right left Fig C 4 3 5 C...

Страница 102: ...he A C head If it is Turn and adjust the tilt adjusting screw to ensure that the tape corresponds to the bottom guide of the P4 and recheck the tape path after pro ceeding play for 4 5 seconds 3 Where the tape bottom is not equal to Fig C 5 3 Adjust the height by using the height adjusting screw B and then readjust it by using the tilt adjusting screw C CAUTIONS Always check the height of the A C ...

Страница 103: ...in cutting off the REV mode CAUTIONS If the RF waveform is changed after adjusting the A C head perform fine adjustment to ensure the RF waveform is flat tened Adjustment Procedure 1 Connect the probe of Oscilloscope to the audio output jack 2 Ensure that Audio 1KHz 7KHz output is flattened at the maximization point by adjusting the Azimuth adjusting screw A Fig C 5 4 Fixtures and tools used Conne...

Страница 104: ... ENVELOPE OUTPUT POINT V2 V1 V1 V1 V MAX 0 7 V1 V MAX 0 8 RF ENVELOPE OUTPUT HEAD RF SWITCHING OUTPUT POINT OSCILLOSCOPE Connection Diagram Waveform CH 2 CH 1 Checking Procedure 1 Check that locking time of the RF and Audio waveform is fallen within the measuring standard in conversion of the play mode from the CUE or the REV mode 2 Readjust the paragraph 5 and 6 if it deviates from the standard F...

Страница 105: ...P VIEW Fig C 9 2 BOTTOM VIEW F E Head Video Head A C Head Pinch Roller Belt Capston Clutch Assembly A37 Fig C 9 3 Tape Transport System Pollution of Video Head or Tape Transport System Poor Sound Low Sound o Pollution of Audio Control Head o Pollution of Pinch Roller or Belt Capstan Belt No tape wound or tape wound loosely FF or REW impossible or slow turning Deterioration of Clutch Assembly D37 T...

Страница 106: ...g C 9 4 Firstly try to use a cleaning tape 1 Use a cleaning patch if foreign materials are not removed with the cleaning tape due to severe dirty of the head Soak the cleaning patch in alcohol and put it to the head tip Smoothly turn the drum turning cylinder to the right or left In this case the cleaning patch must not be moved vertically 1 After completely drying the head test the traveling stat...

Страница 107: ... Part PL 433 Yellow Gear Part PL 433 Yellow Boss Part Side Wall PL 433 Yellow Gear Part Side Application PL 433 Yellow Cam Part Side Application KG 684G Green Gear Sector Gear Cam Base Loading Gear Drive Inner Surface of Guide Rail KG 684G Green Chassis L Chassis R Gear Part 1 2 3 4 6 5 7 1 Inner Side Surface and Top Surface of Loading Path 2 Stable Adhesion Part of Base P2 P3 Coil 3 Gear Cam Shaf...

Страница 108: ...PROTECTION MAINTENANCE AND CHECK OF VIDEO FUNCTION 4 22 Lever F R Base Tension GEAR AY P2 P3 LEVER F R Clutch Contact Part PL 433 Yellow Tension Arm Party Hinge Part PL 433 Yellow BASE TENSION PL 433 ...

Страница 109: ...d sensor Check syscon circuit NO YES YES YES YES NO NO 1 Deck Mechanism A NO NO NO No F R modes Is the present mode F R Mode Is the mode SW assembled correctly refer to Pages 4 14 Is the normal voltage supplied to the Capstan Motor Vcc1 Vcc2 Is terminal voltage Vctl of Capstan Motor supply side more than 4V Check Servo Power Circuits Replace the Capstan Motor Does the Capstan Motor rotate Does the...

Страница 110: ...ge 4 14 Check Pinch spring Replace Drum Motor Check Servo Syscon Check the Syscon µ COM No cassette loading Insert the cassette Check CST Holder Assembly Is there variation for CST IN S W Output In Tape with REC Tab L c H L In Tape without REC Tab L H L H Does the CST IN S W work normally Does the lever Assembly S W work normally Check Syscon Circuit Check Syscon Circuit Replace CST IN S W YES YES...

Страница 111: ...ensors ok Check Syscon Circuit Check Syscon Circuit Check Servo Syscon Does the Capstan Motor turn Is the terminal voltage of the Drum Motor more than 2 3V Replace the Drum Motor Is the Vcc voltage of the Drum Motor normal Check the clutch and the Idler Assembly YES YES YES YES YES YES YES YES NO NO NO NO NO Is the terminal voltage of Capstan Motor supplied more than 4V Replace the Capstan Motor I...

Страница 112: ... C Board 5V YES Is there a short circuit between cassette switch and GND on main P C Board Remove the short circuit part or Replace the main P C Board NO Check Mode switch location and syscon circuit Replace CST IN Switch YES NO YES NO NO Replace CST IN Switch NO NO Cassette will not eject Does the L D motor rotate in reverse Check L D Motor or Drive IC Replace lever Assembly Switch Does the Lever...

Страница 113: ...rm Assembly Check the power of L D Motor Is the Cassette Holder Assembly assembled correctly Replace the F L Rear Rack Does the F L Gear Rack work Does the Door Opener work Does the F L Arm Assembly work Does the L D Motor work Does the Cassette Holder Assembly move the F L Arm Assembly Replace the Front Loading Mechanism Assembly YES YES YES YES NO NO NO YES NO YES NO YES NO C ...

Страница 114: ...4 28 EXPLODED VIEWS 100 A21 A23 A24 032 109 A22 054A 054 115 116 110 112 113 114 103 105 102 106 107 1 Front Loading Mechanism Section ...

Страница 115: ...EXPLODED VIEWS 4 29 008 011 031 079 017 032 024 406 031 021 028 029 026 A03 027 022 003 004 006 007 014 015 009 409 013 016 012 OPTIONAL PART A01 405 2 Moving Mechanism Section 1 ...

Страница 116: ...EXPLODED VIEWS 4 30 052 517 061 056 518 052A 055 410 032 077 076 078 060 051 064 A11 A12 067 066 065 068 069 070 023 080 058 3 Moving Mechanism Section 2 ...

Страница 117: ......

Страница 118: ...NGE 5 29 7 ATTACHMENT OPTICAL POWER MEASUREMENT 5 30 INTERNAL STRUCTURE OF THE PICK UP 5 31 1 BLOCK DIAGRAM OF THE PICK UP LPC 812R 5 31 2 PICK UP PIN ASSIGNMENT 5 32 3 SIGNAL DETECTION OF THE P U 5 33 DESCRIPTION OF CIRCUIT 5 34 1 ALPC AUTOMATIC LASER POWER CONTROL CIRCUIT 5 34 2 FOCUS TRACKING SLED SERVO CIRCUIT 5 35 3 SPINDLE SERVO CIRCUIT 5 37 MAJOR IC INTERNAL BLOCK DIAGRAM 5 38 LIC121 AN2211...

Страница 119: ...he LIC201 LIC121 Does the pin 1 Reset of LIC271 change 0V to 3 3V at the power supply initial input mode Power Is the pin 5 of LIC401 3 3V Reference 1 65V VREF Check pin113 of LIC121 2 2V HDVREF Check pin78 of LIC121 NO NO YES YES YES YES Are the LX201 oscillating Check the LX201 16 9MHz Check the LIC201 NO Check the LIC401 NO Check the LIC121 NO Check it after connecting the power cable only on i...

Страница 120: ...eck rotation After eject the tray Insert DVD R RW Disc and check rotation Does Disc rotate continuously and the drive recognize the disc Does Disc rotate continuously and the drive recognize the disc Go to Sled operating is abnormal Go to Laser operating is abnormal Go to Recognition fail Case1 CD ROM Disc Go to Recognition fail Case2 DVD Disc Go to Recognition fail Case3 Blank DVD R RW NO NO YES ...

Страница 121: ...heck the connctor LPF303 Replace the LIC301 Check the connction of LIC201 pin 66 Replace the LIC201 Check the communication line between LIC201 NO YES YES YES NO Is there Tray drive voltage output LIC301 pin 1 2 Is there Tray control signal input LIC301 pin 46 YES Tray open doesn t work ...

Страница 122: ... Is DRVMUTE2 signal H LIC301 pin 35 Check the LR316 LR317 Check the connection of LIC121 pin 32 Is there Sled drive voltage output LPM302 pin 1 2 3 4 Replace the Sled Motor YES NO NO YES YES Check the Connection LCN302 NO Is there Sled drive voltage input LIC301 pin 29 30 YES NO Is there Sled drive voltage output LIC301 pin37 38 39 40 YES NO ...

Страница 123: ...ge output LIC301 pin 11 13 16 Is there Spindle drive voltage output LIC301 pin 1 2 3 Check the Connection LPM301 Replace the Spindle Motor NO NO NO YES YES Is there FG signal input LIC201 pin 71 NO YES YES Check the output of LIC301 pin 43 Check the connector LPM301 Replace the LIC301 Replace the LIC201 OK ...

Страница 124: ... there Focus Search control signal input LIC301 pin5 Is DRVMUTE2 signal H LIC301 pin 35 Replace the LIC301 Check the connection LPM101 pin40 41 Check the connection of LIC121 pin 32 Replace the LIC121 NO YES Replace the Pick Up Is there Focus Search drive voltage output LIC301pin51 52 NO Check the connection of LIC201 pin 62 Check the communication line between LIC121 and LIC201 Replace the LIC201...

Страница 125: ...21 NO Replace the LIC201 Check the Drive IC LIC301 and P U referring to Focus Actuator operating is abnormal Is there TDRV signal output in Tracking ON LIC201 pin66 NO Is PICK UP E F G H output normal LPM101 pin 8 5 9 4 YES YES NO LIC121 pin24 is MOUT1 FEP Monitor1 After disc recognition action Monitor port is off So please check TE signal during disc recognition ...

Страница 126: ...e the Pick up Go to Focus Servo is unstable NO YES Does Focus Servo operate normally Check Pickup RF signal LIC121 Pin81 RFOUT was 2 2 5V NO Go to LD CHECK YES NO Replace LIC121 YES Check EQOUTP waveform LIC121 Pin 74 was 1 75 2 3V NO Go to Tracking Servo is unstable YES YES Check after replacing LIC201 It is OK NO OK ...

Страница 127: ...ase 3 Blank DVD R RW Replace LIC201 Replace LIC121 YES NO NO Is there WBL LIC201 pin39 Signal YES NO Is there RF signal at LIC121 Pin81 YES Replace the Pickup NO Replace the LIC121 Is there RF signal at LIC121 Pin95 RFP and Pin96 RFN YES NO Replace the LIC201 Check again after the replace LIC121 It is OK OK Check the connection between LIC121 and LIC201 ...

Страница 128: ...Go to Writing Part Check Remove the dust fingerprint and if the disc has long width scratch change it Check the media DVD R RW Does the disc have any dust scratch fingerprint Finalized Disc If DVD R disc use new DVD R disc If DVD RW disc erase the disc YES YES NO YES NO ...

Страница 129: ...with DVD R RW disc Press the REC key Does writing finish without any error Is the written file read normally OK Eject tray Go to LD CHECK Is the re written file read normally Check and replace LIC201 LIC121 LIC101 YES YES YES YES NO NO ...

Страница 130: ...ES check from How to use Test tool Execute C Laser Power Setup of How to use Test Tool Check reference voltage E F G FPD W1SET W2SET W3SET Is ALPC parameters valid Perform 5 Optical Power Setting OFF level W1SET level FPD W2SET level FPD W3SET level FPD OK N G OK NO OK OK OK N G N G N G ...

Страница 131: ... How to use Test tool Select Mode DVD Test and perform Test from 4 LD Test of How to use Test tool Check the input of CD DVD pin 10 of LPM 101 Check the input of CD DVD pin 10 of LPM101 Check the input of W1SET pin 12 of LPM101 Check the input of FPD pin 126 of LIC121 END E ...

Страница 132: ...e input of recording pulse pin 19 20 21 22 23 24 of LPM101 Check the input of FPD pin 126 of LIC121 END G Select Mode DVD Test and perform Test from 4 LD Test of How to use Test tool Check the input of CD DVD pin 10 of LPM101 Check the input of W3SET pin 14 of LPM101 Check the input of recording pulse pin 19 20 21 22 23 24 of LPM101 Check the input of FPD pin 126 of LIC121 END ...

Страница 133: ...5 16 THE DIFFERENCE OF DVD R RW DVD R RW DISCS AND DVD ROM 1 RECORDING LAYER 0 74um 3T 0 4 um DVD ROM Read Only Disc DVD R RW Disc ...

Страница 134: ...5 17 2 DISC SPECIFICATION 3 DISC MATERIALS 1 DVD ROM Single Layer Dual Layer ...

Страница 135: ... a laser When a strong laser is applied to a disc the temperature of the organic dye material goes up the dye is decomposed and the substrate changes at the same time At this time a durable bit is created as is the case with a CD ROM Playback Signals are read with the differences of the reflection of a laser from pits 2 Recording format using organic dye material DVD R DVD R Disc structure Recordi...

Страница 136: ...th a low reflection coefficient when it quickly cools off When a mid power laser is applied to heat gradually the recording material and then gradually cools it off it becomes crystal with a high reflection coefficient Playback A low power laser is used for playback The amount of reflected light depends on the status amorphous or crys talline of the recording material This is detected by an optica...

Страница 137: ... for DVD RW has Type 1 and Type2 In Type 1 the mark with nT width is created by one top pulse and n 2 multi pulses Thus mark 3T is made by one top pulse and one multi pulse In Type 2 the mark with nT width is created by one top pulse and n 3 multi pulses Thus mark 3T is made by one top pulse only RL 02A uses MP type Write Strategy for DVD R and Type 1 for DVD RW as shown below Po Write Power Peak ...

Страница 138: ...6mm Diameter 22mm 3th transition area Diameter 33mm Diameter 44mm 1th transition area 2th transition area Rim area Data Zone Lead in Zone Inner Drive Area Unrecorded Disc Outer Drive Area Inner Disc Test Zone in 27080H 28480H Information Zone Center hole Clamping Zone Diameter 120 mm Diameter 15mm Disc Center Diameter 16mm Diameter 22mm 3th transition area Diameter 33mm Diameter 44mm 1th transitio...

Страница 139: ...ormed in IDT Zone 3 Layout of DVD RWdisc Data Zone Lead in Zone Unrecorded Disc Lead out Zone Inner Disc Test Zone in 2A7C80H 2DC80H Information Zone Center hole Clamping Zone Diameter 120 mm Diameter 15mm Disc Center Diameter 16mm Diameter 22mm 3th transition area Diameter 33mm Diameter 44mm 1th transition area 2th transition area Rim area 2A480H PSN Inner Disc Count Zone 30000H out Outer Disc Te...

Страница 140: ...ibration Area in 203B0H 22F90H Unrecorded Disc Center hole Clamping Area Diameter 120 mm Diameter 15mm Disc Center Diameter 16mm Diameter 22mm 3th transition area Diameter 33mm Diameter 44mm 1th transition area 2th transition area Rim area Lead out Area 1E800H PSN RMA Recording Management Area 203C0H 22FA0H 30000H ...

Страница 141: ...ing recommended ALPC Program in case of SVC OPTIONAL INSTRUMENT 1 USB ATAPI Interface if you don t have Notebook which has ATAPI Interface or use PC USB Port 2 Connector ATAPI Interface Board 2 ALPC PROGRAM Use the ALPC program in Dragon tool for Optical power setting It is consist of total 4 files Dragon_JW3P exe dragon cfg blue dat WNASPI32 DLL Four files must exist in same Directory Personal Co...

Страница 142: ...gon_JW3P exe file 2 Enter the password It is qaz When you enter the password turn off the Caps lock in your keyboard 3 Set up the target device Press ATAPI button on the main dialog of Dragon tool And find the target device which is GDA 4164L ...

Страница 143: ... the Alpc Opc menu CD DVD selection WriteScribe function don t use it Laser Read power on Laser off Erase power on multi pulse power on Non multi pulse power on WriteScribe function don t use it Set up the laset power parameter after finishing power measurement Laser power setup parameter ...

Страница 144: ...on t watch light directly When you finish optical power measurement press button LD Off Press button save to ERPROM 2 CD LD Power Setting Select the CD in the Select Laser Diode Press Measure optical read Power Write Read Power value Press button save to ERPROM In case of CD power setting of RS 01A loader don t need to set up write power Although NMP MP Erase and HC power is N G when you press set...

Страница 145: ...ptical power setting value Write optical Power Setting value to paper Adjust power setting again Compare original parameter to new parameter if parameter value is different highly original value is wrong or optical power may change But pick up LD test is all ok just adjust optical power setting again Normal range of ALPC parameter Optical power value which has been saved in the EEPROM ALPC Para 1 ...

Страница 146: ...DVD R READ Reference DAC 40 145 2 DVD RW READ Reference DAC 40 145 3 VWDC1 30 100 4 VWDC1 Offset 0 20 5 VWDC2 40 140 6 VWDC2 Offset 0 20 CD 1 CD R READ Reference DAC 30 150 2 CD RW READ Reference DAC 80 250 3 VWDC1 10 39 4 VWDC1 Offset 0 20 5 VWDC2 20 57 6 VWDC2 Offset 0 20 ...

Страница 147: ...ower is about 100mW Optical Power measurement method 1 Fit optical Power Meter λ wavelength value to DVD generally 660nm 2 DVD LD On 3 Approach power sensor to Pick up Lens about 3mm vertically Fix Lens and Sensor mark position 4 Read Monitor value move sensor read just a little and read max value caution unit is mW 5 Write monitoring value x 100 Only an integer 6 Fit opticcal Power Meter λ wavele...

Страница 148: ... 9 EF3 10 C 11 D 12 SW PDIC 13 RF 14 RF 15 SW FM 16 VCC FM 17 GND FM 18 VREF FM 19 FM_OUT 20 TEMP 21 GND Themester 22 W1DISN 23 W1DIS 24 W2DISN 25 W2DIS 26 W3DISN 27 W3DIS 28 OSCEN 29 GND 30 GND 31 VCC 32 W3SET 33 W2SET 34 W1SET 35 RSET 36 OUTSET 37 ENABLE 38 VCC 39 GND 40 F Focus Actuator TILT TRACK 41 F 42 TILT 43 TILT 44 T 45 T 9 10 11 12 13 14 6 5 4 3 2 1 10 1 2 3 4 5 9 8 7 6 13 6 NE2 5 E2 4 E...

Страница 149: ...3DISN LVDS control for output current Low Enable 25 W2DIS LVDS control for output current High Enable 24 W2DISN LVDS control for output current Low Enable 23 W1DIS LVDS control for output current High Enable 22 W1DISN LVDS control for output current Low Enable 21 GND FPD Ground connection for PDIC FPD TEMP 20 TEMP Output voltage for controlling temperature 19 FPD OUT APC amplifier output 18 VREF F...

Страница 150: ...EF3 This signal is generated in RF IC LIC121 AN22113A and controls the pick up s left and right shift to find to track on Disc 3 RF Signal A B C D This signal is converted to DATA signal in DSP IC LIC201 MN103SA6G Pick Up module Photo Diode Tracking Focusing Infrared Iaser k F H E G A D B C A D B C k F H E G Offset TE Tp Sub2 Main Tp 2 Sub1 Track Center F E D C A B H G 3 SIGNAL DETECTION OF THE P ...

Страница 151: ...SIGNAL IS INPUT FROM THE VREFPD PIN 124PIN THE ALPC BLOCK GENERATES THE SINGALS FROM THE INPUT LASER POWER SIGNALS IN THE FOLLOWING DETECTION SYSTEMS THIS BLOCK HAS FOUR DETECTION PATHS ALL AVERAGE VALUE PATH MULTI PULSE AVERAGE PEAK VALUE DETECTION PATH ERASE BOTTOM VALUE DETECTION PATH SPACE PLAYBACK POWER VALUE DETECTION PATH MN103SA6G Write Strategy LIC 201 LPM 101 Optical Pick up LPC 812R LD ...

Страница 152: ...tor A B C D A B C D E F G H A B C D E F G H IC121 AN22113A FE TE LIC201 Servo Control MN103SA6G TE FE A D D A C SLED COMPENSATOR A D PARALLEL DIGITAL COMPENSATOR SDRV 60 64 66 67 STEP2 STEP1 LIC301 BD7956FS 29 30 M Stepping Motor Logic A 37 38 40 39 A B B Tracking Focusing Actuator T T F F 5 4 LEVEL SHIFT FDRV TDRV LEVEL SHIFT 53 54 51 52 Focus Tracking Sled Servo ...

Страница 153: ...ERVO CIRCUIT 2 1 FOCUS TRACKING SLED SERVO PROCESS OPU PDIC S DPWM 10bit 100 50 MHz S DPWM 10bit 100 50 MHz ADC INT R On Off BD7956 Drive IC AN22113 FEP R On Off 16 bit Timer RFOUT Track Focus Internal u P F W Need to change to 16bit MN103SA6G MECHANISM ...

Страница 154: ...SERVO CIRCUIT 3 1 SPINDLE SERVO PROCESS F E D C A B H G Pick up Wobble Signal Generator RF LIC121 AN22113A WBLIN EFM SRF SERVO DSP Phase Controller Frequency Controller 68 SPDRV LIC201 MN103SA6G LIC301 BD7956FS M Spindle Motor Level S hift ...

Страница 155: ... VCC6 16 VHALF 17 CTC 18 CXDPH1 19 CXDPH2 20 MOUT2 25 GND1 26 PO0 27 PO1 28 PO2 29 PO3 30 PO4 31 PO5 32 PO6 33 STMOUT 39 TC 40 OFTR 41 BDO 42 VCC51 43 GND5 44 WTGT 45 PIO0 34 PIO1 35 PIO2 36 PIO3 37 FEPIDGT SH6 46 NC 47 WIDGT SH4 48 SH3 49 SH2 50 SH1 51 SH5 52 VCC4 53 SEN 54 SCK 55 SDAT 56 RSEN 57 RSDAT 58 VCC52 59 GND4 60 ASENV LPPM 61 LPPS 62 WBL 63 CLUMPGT 64 PAD0 65 PAD1 66 PAD2 67 PAD3 65 PAD...

Страница 156: ...MC SMTEP SMTEN CHP0FT COFTR SLP14 SLP23 SMFEPN SSFEP SSFEPN SMTEP SMTEN SSTEP SSTEN SDAAOUT SDABOUT SDACOUT SDADOUT SDPDTEP SRFMA SRFMD SRFMB SRFMC SDPDTEN SPLAOUT SPLBOUT SPOF TCOP TCO TCON TIOP TIO SBDOAS TION VGA VGA COMP PK ENV PK ENV COMP VGA Bypass VGA Bypass M P X M P X DPD TE Dtetction TC TI Dtetction HDVREF VHALF VREF08 RFP CDRFP RFN CDRFN BDO RF OUT RFIN1 RFIN2 EQOUTP EQOUTN VREF GATE Al...

Страница 157: ...AL BLOCK DIAGRAM LIC121 AN22113A FEP RF ANALOG SIGNAL PROCESSOR BLOCK DIAGRAM FEP LDD FEP DRC CD SERVO ADSC CD REC PERIPHERAL 32 bit CPU ANALOG CPU BCU FMT HOST 16 9MHz SDRAM 16 Mbit 64 Mbit Falsh ROM 2 Mbyte ECC HOST I F ...

Страница 158: ...OL FG FG fin fin OSC 50k 47k 33 6k 33 6k 1 54 LDO ACO1 53 ACO1 52 ACO2 51 ACO2 50 ACO3 49 ACO3 48 AV 47 ACTIN3 46 LDIN 45 AGND 44 SPCNF 43 FG 42 V 41 fin 40 SLO1 39 SLO1 38 SLO2 37 SLO2 36 SLGND 35 CTL2 34 CTL1 33 SLRNF2 32 SLRNF1 31 SLVDD C M 30 SLIN2 29 SLIN1 28 DVcc 2 LDO 3 Vcc 4 ACTIN1 5 ACTIN2 6 TJMON 7 BTHC 8 SPVM_S 9 PGND1 10 PGND2 11 U 12 SPV 1 13 V M M 14 fin 15 PGND3 16 W 17 SPV 2 18 SPR...

Страница 159: ......

Страница 160: ...5 42 5 43 CIRCUIT DIAGRAMS 1 DSP CIRCUIT DIAGRAM A B C D E F G H I J K L M N O P Q R S T ...

Страница 161: ...5 44 5 45 2 RF CIRCUIT DIAGRAM A B C D E F G H I J K L M N O P Q R S T ...

Страница 162: ...5 46 5 47 3 DRIVE CIRCUIT DIAGRAM A B C D E F G H I J K L M N O P Q R S T ...

Страница 163: ...1 1 3 29 2 0 00 3 3 28 4 0 00 5 4 99 6 0 00 7 0 00 8 4 98 9 0 00 10 4 99 11 0 00 12 0 00 13 0 00 14 4 99 15 0 00 16 1 09 17 3 28 18 0 00 19 4 99 20 0 00 21 0 00 22 0 00 23 0 00 24 0 00 25 0 00 26 0 00 27 0 00 28 4 97 29 0 00 30 3 29 31 0 36 32 0 00 1 0 00 2 0 00 3 1 69 4 1 64 5 1 66 6 2 67 7 2 60 8 0 00 9 0 00 10 1 65 11 0 00 12 0 25 13 1 58 14 1 82 15 2 20 16 3 29 17 1 65 18 1 56 19 0 00 20 2 50 ...

Страница 164: ...5 50 5 51 PRINTED CIRCUIT DIAGRAMS 1 MAIN P C BOARD TOP VIEW ...

Страница 165: ...5 52 5 53 2 MAIN P C BOARD BOTTOM VIEW ...

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