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4-15

DECK MECHANISM ADJUSTMENT

2. Previous Preparation for Deck Adjustment

(Preparation to load the VCR (VCP) with cassette tape not inserted)

3. Torque Measuring

1) Unplug the power cord.
2) Separate the top cover and the plate assembly top.
3) Plug in power cord.
4) Turn the VCR (VCP) on and load the cassette while push-

ing the lever stopper of the holder assembly CST back-
ward. In this case, clog both holes 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).

Purpose of Measuring: To measure and check the reel torque on the take-up part and the

supply part that performs basic operation of the VCR (VCP) for
smoothly forwarding the tape.

Measure and check followings when the tape is not smoothly

wound or the tape velocity is abnormally proceeded:

Fixtures and tools used

VCR (VCP) status

Measuring method

• Torque Gauge

• Play (FF) or Review

• Try to operate the VCR (VCP) per mode with the

(600 g.cm ATG)

(REW) Mode

tape not inserted (See ‘2. Prior Preparation for

• Torque Gauge Adaptor

Deck Adjustment).

• Cassette Torque Meter

• Measure after adhering and fixing the torque

SRK-VHT-303

gauge adaptor to the torque gauge (Fig. C-3-1)

• Read scale of the supply or take-up part of the

cassette torque meter (Fig. C-3-2).

Item

Mode

Instruments

Reel Measured

Measuring Value

Fast forward Torque Fast Forward

Torque Gauge

Take-Up Reel

More than 400g°cm

Rewind Torque

Rewind

Torque Gauge

Supply Reel

More than 400g°cm

Play Take-Up Torque Play

VHT-303

Take-Up Reel

40~100g°cm

Review Torque

Review

VHT-303

Supply Reel

120~210g°cm

SRK

VIDEO

CASSETTE

TORQUE

METER

VHT-303

S

R

K

- V

H T

- S

SR

K- V HT - T

300

250

200

150

50

0

300

250

200

150

50

0

100

Fig. C-3-2

Fig. C-3-1

Torque Gauge

Torque Gauge
Adaptor

Reel Table

NOTE

• Cassette Torque Meter (SRK-VHT-303)

• Torque Gauge (600g.cm ATG)

Adhere the torque gauge adaptor to the torque gauge for measuring the value.

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Содержание RCT689H

Страница 1: ...R SERVICE MANUAL MODEL RCT689H CAUTION BEFORE SERVICING THE UNIT READ THE SAFETY PRECAUTIONS IN THIS MANUAL MODEL RCT689H SERVICE MANUAL Website http biz lgservice com Internal Use Only P NO AFN32896765 FEBRUARY 2011 ...

Страница 2: ...1 1 CONTENTS SECTION 1 SUMMARY SECTION 2 CABINET MAIN CHASSIS SECTION 3 ELECTRICAL SECTION 4 MECHANISM OF VCR PART D 37 SECTION 5 RV9 LOADER PART SECTION 6 REPLACEMENT PARTS LIST ...

Страница 3: ...D RECORDER PRODUCTS 1 3 SERVICING PRECAUTIONS 1 4 General Servicing Precautions Insulation Checking Prodedure Electrostatically Sensitive Devices SERVICE INFORMATION FOR EEPROM IC SETTING 1 5 UPGRADE THE MAIN LOADER PROGRAM 1 6 UPGRADING I O μ COM SOFTWARE 1 8 SPECIFICATIONS 1 9 ...

Страница 4: ...e polarized line plug has not been defeated 3 Soldering must be inspected to discover possible cold solder joints solder splashes or sharp solder points Be certain to remove all loose foreign particles 4 Check for physical evidence of damage or deterioration to parts and components for frayed leads or damaged insulation including the AC cord and replace if necessary 5 No lead or component should t...

Страница 5: ...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 6: ...n Remote Control 5 To INITIALIZE the system press CLEAR button on the R C together with OPEN CLOSE on the Front Panel about 5 sec Note This process will only clear the mapping channel and not delete data on HDD 6 To exit from the option Code menu without Initialize the system just turn off the power and then turn on again OP1 0F 00000000 OP2 70 00000000 071102A OP3 31 00000000 OP4 20 00000000 OP5 ...

Страница 7: ...ction Process OSD like below 4 If CD Data inspection OK there will be mes sage on OSD as below 5 Press PLAY button to update S W and another button to cancel 6 Main S W under updated Do not turn off the power during updating proc ess 7 If updating succeed tray disc will be opened Take the disc and turn off the power 8 Turn on the power and check the Main S W Version 3 UPGRADE LOADER S W 1 Insert U...

Страница 8: ...ceed after completed there will be message Power will be automatically turn off 7 Turn on the power and check the Loader S W Version 4 S W VERSION INFORMATION 1 Press the HOME button on the Remocon 2 Select EASY MENU Select SETUP 3 Select menu General TV Aspect 16 9 Wide 4 Press button number 1 3 9 7 1 3 9 Enter on the Remocon The picture on TV screen as below ...

Страница 9: ...n CD or Burn Other CD have no defect 3 Progressing OSD will be displayed And Current Version and New Version Number will be displayed after a while Tray will be Opened automatically Removed Update disc Also request pressing Play Key Then Press Play Key 4 Upgrading Progress will be displayed 5 If Upgrading Progress Succeed Turn Off Power automatically 6 When You Turn On Power after a while Recorder...

Страница 10: ...Sampling frequency 48kHz Compression format Dolby Digital PLAYBACK Frequency response DVD PCM 48kHz 8Hz to 22kHz CD 8Hz to 20kHz DVD PCM 96kHz 8Hz to 44kHz Signal to noise ratio More than 100dB AUDIO OUT connector Harmonic distortion Less than 0 008 AUDIO OUT connector INPUTS Dynamic range More than 95dB AUDIO OUT connector ANTENNA IN Antenna input 75 ohms VIDEO IN 1 0Vp p 75 ohms sync negative RC...

Страница 11: ...1 10 MEMO ...

Страница 12: ...1 SECTION 2 CABINET MAIN CHASSIS CONTENTS EXPLODED VIEWS 2 2 1 CABINET AND MAIN FRAME SECTION 2 2 2 DECK MECHANISM SECTION RV9 DR 11A 2 3 3 DECK MECHANISM SECTION D37 N 2 4 4 PACKING ACCESSORY SECTION 2 7 ...

Страница 13: ...60 261 261 261 465 284 286 285 281 275 469 472 274 VCR BOARD 469 469 469 323 A46 A CABLE8 C D A50 A50 A KEY BOARD 280 463 C D B F DVD LOADER BOARD CABLE6 CABLE5 CABLE4 HDMI BOARD E E F CABLE7 A54 A54A 253 A43 452 B 469 EXPLODED VIEWS 1 CABINET AND MAIN FRAME SECTION 469 283 A44 ...

Страница 14: ...TION RV9 DR 11A Main C B A 1018 1019 1045 1431 1437 1025 1432 1432 A006 1002 A001 A52 1020 1439 1046 1047 1011 1013 1017 1433 1026 1016 1015 1012 1030 1038 1432 1036 1001 1003 DVD LOADER BOARD CABLE6 CABLE5 1043 1041 1041 A005 ...

Страница 15: ...2 4 3 DECK MECHANISM SECTION D37 N 3 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 16: ...2 5 3 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 17: ...2 6 3 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 18: ...2 7 4 PACKING ACCESSORY SECTION BATTERY 808 BAG 804 PACKING 803 806 CABLE COAXIAL BOX CARTON 802 PACKING 803 801 INSTRUCTION ASSEMBLY REMOCON 900 ...

Страница 19: ...2 8 MEMO ...

Страница 20: ... CIRCUIT DIAGRAM 3 51 10 KEY CIRCUIT DIAGRAM 3 53 CIRCUIT VOLTAGE CHART 3 55 PRINTED CIRCUIT BOARD DIAGRAMS 3 61 1 VCR P C BOARD 3 61 2 SMPS P C BOARD 3 65 3 HDMI P C BOARD 3 65 4 KEY P C BOARD 3 67 VDR PART VDR ELECTRICAL TROUBLESHOOTING GUIDE 3 71 1 NO COMPONENT VIDEO SIGNAL WHEN PLAYING DISC 3 71 2 NO COMPOSITE SIGNAL WHEN PLAYING DISC 3 72 3 NO TV EXTERNAL INPUT VIDEO SIGNAL 3 73 4 WHEN PLAYIN...

Страница 21: ...8 D1 8V 9 5V 10 12V 11 1 2 3 4 5 6 7 8 9 10 11 DGND 1 D1 8V 2 D1 8V 3 HDMI_RST 4 D3 3V 5 D3 3V 6 GND 7 D5V 8 D5V 9 GND 10 SPDIF 11 GND 12 AO_MCLK 13 GND 14 CEC 15 GND 16 NC HDMI_IRQ 17 GND 18 VO_CLK 19 GND 20 VO_DO 21 VO_D1 22 VO_D2 23 VO_D3 24 VO_D4 25 VO_D5 26 VO_D6 27 VO_D7 28 GND 29 VO_D8 30 VO_D9 31 VO_D10 32 VO_D11 33 VO_D12 34 VO_D13 35 VO_D14 36 VO_D15 37 GND 38 SDA 39 SCL 40 1 2 3 4 5 6 7...

Страница 22: ...R VIDEO TP for the VCR c Trigger the mixed Combo Video Signal of CH2 to the CH1 H SW and then check the distance time difference which is from the selected A B Head point of the H SW signal to the starting point of the vertical synchronized signal to 6 5H 0 5H 416µs 1H 64µs PG Adjustment Method a 1 Playback the SP standard tape b 2 Wait 5 second Press CLEAR at remocon DVD loader Eject Digitron c 3...

Страница 23: ...V supplied to IC101 Pin2 Is the D102 normal YES NO NO Check or Replace the D102 IS the D123 normal Replace the D123 YES NO Is there about 2 5V at the IC103 Pin1 Replace the IC103 YES NO Is the IC102 normal Replace the IC102 YES NO Is the D122 normal Replace the D122 YES NO Is the D126 normal Replace the D126 YES NO Is the D127 normal Replace the D127 YES NO Replace the D128 YES NO Is the D124 norm...

Страница 24: ...heck or Replace the Q801 No REG 12V Is the Vcc 13V supplied to Q802 collector Check or Replace the D122 YES NO NO Is the Q802 Base H Check the 33V Line or ZD816 YES Check or Replace the Q802 No 33V Is the Vcc 34V supplied to Q803 Emitter Check or Replace the D126 YES NO NO Is the Q804 Base L Check the PWR CTL H signal from IO u COM IC601 29 YES Check or Replace the Q804 VCR MAIN ...

Страница 25: ...e Vcc 3 8V supplied to IC153 pin1 Check or Replace the D127 YES NO Is the IC153 pin4 H Check the DVD CTL H signal from IO u COM IC601 29 YES NO Check or Replace the IC153 No 12VL YES Is the Vcc 13 5V supplied to IC155 pin 1 Check or Replace the D124 YES NO Is the IC155 pin4 H Check the DVD CTL H signal from IO u COM IC601 29 YES NO Check or Replace the IC155 ...

Страница 26: ... the D128 YES NO Is the IC156 pin4 H Check the DVD CTL H signal from IO u COM IC601 29 YES NO Check or Replace the IC156 No 2 5V YES Is the Vcc 13 5V supplied to D156 anode Check or Replace the D156 YES NO Is the IC154 pin4 H Check the DVD CTL H signal from IO u COM IC601 29 YES NO Check or Replace the IC154 ...

Страница 27: ...501 YES Check the Power Circuit YES NO 2 2 The unstable loading of a Cassette tape Note Auto stop can occur because Grease or Oil has dried up NO YES Is 12V applied to PMC01 Pin8 Check the power The unstable loading of a Cassette tape Check the Deck Mechanism Check IC501 Pins86 87 88 89 YES YES YES NO NO Does the H signal appear at IC501 Pin32 during inserting of the CST Does the L signal appear a...

Страница 28: ...ES On tracking do the CTL pulses move Replace IC501 NO Do the DFG Pulses appear at PMC01 Pin11 NO Refer to 2 No 12VA of Power section Aren t the foil patterns and the Components between IC501 Pin34 and PMC01 Pin12 shorted Are the connecting patterns and the Components between IC501 Pin34 and PMC01 Pin12 shorted Replace the Cap M Aren t the foil patterns and the Components between IC501 Pin65 and P...

Страница 29: ...CAPSTAN 13 5VA Trouble Shooting YES NO NO YES Does 2 8V appear at PCM01 Pin9 YES Does the PWM signal appear at IC501 Pin33 YES Aren t the foil patterns and Components between IC501 Pin33 and PMC01 Pin9 shorted Check the PMC01 and the Capstan Motor Ass y Aren t the foil patterns and Components between IC501 Pin33 and PMC01 Pin9 short NO NO NO Does the CFG signal appear at PMC01 Pin1 Check the Capst...

Страница 30: ...t NO YES Does the normal RF signal appear at IC301 Pin79 YES Is the V H S W signal applied to IC301 Pin70 Clean the Drum NO Check the System Circuit IC501 Pin23 YES Is the V H S W H about 3 4V at the IC301 Pin70 NO Check the V H S W level Check R323 NO Check the IC301 NO YES Is I2C BUS signal applied to the IC301 Pin68 69 Refer to SYSTEM I2C BUS CHECK Trouble Shooting When the Y Luminance signal d...

Страница 31: ...n18 24 42 55 72 91 Check the line of the 5 0V 5 3VA Line Power Circuit NO Does the Color signal appear at IC301 Pin21 YES YES Does the X301 4 43MHz osxillate Replace the IC301 NO Replace the X301 YES NO Does the waveform RF signal appear at IC301 pin79 Replace the IC301 YES When the C Color signal doesn t appear on the screen in PB Mode Replace the IC301 ...

Страница 32: ...parts of μ COM IC501 Pins17 18 NO NO Do Audio Signals appear at IC802 Pin1 7 Check the IC402 Pins14 15 NO YES YES YES Check the IC802 Pin2 6 Check the Jack JK901 JK905 Do Audio Signals appear at JK901 JK905 Check the DVD Board Audio path NO YES Check the Hi Fi Selection switch IC801 Pin17 and the Tape quality Check IC501 Pin35 A H SW NO YES Do Audio Signals appear at IC801 Pin58 L CH 56 R CH Check...

Страница 33: ...plied to TU701 Pin7 Does the Clock Data signal appear at TU701 Pin23 24 Is 3 3V applied to TU701 Pin3 26 Is 1 2V applied to TU701 Pin27 YES YES Check the IC803 Check the IICClock Data signal of the IC601 Pin17 18 Check the IC703 NO YES Does the Video signal appear at IC401 Pin8 Check the Pattern between TU701Pin9 and IC401 Pin8 NO YES Does the Video signal appear at IC901 Pin2 Check the DVD Board ...

Страница 34: ...59 67 Check D3 3V Line YES NO Check the Tuner SiF signal at IC404 Pin33 Check the Tuner SIF of TU701 Pin10 YES NO Check the oscillator of IC404 Pins53 54 Replace X401 YES NO Check the I2C at IC401 Pins 44 45 I2C SCL SDA at PVM02 Pins31 32 YES NO Check the Audio of IC402 Pin14 15 Check the DVD Board Audio Path YES NO Check the Audio of IC802 Pin2 6 Check the IC802 YES YES 6 2 No Sound ...

Страница 35: ...3 16 WAVEFORMS 1 AUDIO BLOCK WHEN 1kHz SIGNWAVE IS OUTPUT 1 2 3 4 3 AOUT_D0 4 AOUT_MCLK 1 AOUT_FSYNC 2 AOUT_SCLK ...

Страница 36: ...3 17 6 7 5 SPDIF_OUT IC1101 6 7 A OUT_R A OUT_L 5 ...

Страница 37: ...3 18 MEMO ...

Страница 38: ...OCK D123 C123 C133 L123 RECTIFIER SMOOTING BLOCK D127 C127 C137 L127 RECTIFIER SMOOTING BLOCK D126 BC102 R126 C126 RECTIFIER SMOOTING BLOCK D128 C128 5 3VA 3 3V 5V 12V 34VA 2 5V REG BLOCK D156 IC154 R154 C154 12V REG BLOCK IC155 R155 C155 3 3V REG BLOCK IC153 C152 R153 5V REG BLOCK IC156 C156 R156 Cap Vcc RECTIFIER SMOOTING BLOCK D122 C122 C132 L122 Drum Vcc 14VA 2 5V DVD PWR CTL RECTIFIER SMOOTIN...

Страница 39: ...3 21 3 22 2 SYSTEM BLOCK DIAGRAM ...

Страница 40: ...X XW qr WX yjhGqhjr qr WY vw pjhs zwkpm jvh hs l iVw v l yVw v l nV v iVw yVw nV l j iz v h X v h kpvGt lGisvjr htw h s htw h y t l y t l s t l j s o h kpv t l s htw h s htw h y vG pklvVh kpvGjvklj h X pu h X h s h X h y 3 23 3 24 3 A V CODEC BLOCK DIAGRAM ...

Страница 41: ...y h s vGhV G jvklj vG z z lt h o zV ppj jsr th ppj kh h th h t l o tvuv h v opTmp wi i opTmp wi h vG h jw htw h s htw h y pVvG qhjr k k h s k k h y vGhV GG jvklj vG ztwz YU pj_WZ stZ XWYk vG uly XU_ 3 25 3 26 4 HI FI BLOCK DIAGRAM ...

Страница 42: ...i h zwGiGwi swGiGwi swGhGwi UoUz k Uz uj oUhtwUz h t l o j yv h ppj jsr th ppj kh h th vG z z lt wZkWY vG z z lt vGo Tm h kpv opmpGiGwi opmpGhGwi uvtv h v j sORP j sOTP lu jvtw zlj kl pklv lu tpjvt pklv h jw pklv vGhV G jvklj U Z t o 3 27 3 28 5 AVCP BLOCK DIAGRAM ...

Страница 43: ...3 29 3 30 6 TUNER BLOCK DIAGRAM ...

Страница 44: ...zhjhy h YG Upu JY qhjr Omyvu GpVvGqhjrP pjZWX sh X W h jw pj WX tpjvt pjYWX sh WXWW zljht kljVluj pklv z z lt Oktu_ YZGR zhh XZ_P k kG j iz ppjGjsr ppjGkh h h jwG pklv wiG jvsvy j iz UGv yni w w yni UGv w w UGv 3 31 3 32 7 VIDEO SIGNAL BLOCK DIAGRAM ...

Страница 45: ...sVyGpu JXY SJXY k khj Omyvu GpVvGqhjrP pj_WX sh Y Z opTmp pj WX tpjvt pjZWX sh X W h jw kljVluj pklv z z lt Oktu_ YZGR zhh XZ_P kpnp hsG h kpv ppjGjsr ppjGkh h jyGsVy h kpv uvythsG h kpv k kGhUGsVy v pj_WY tj _W htw htwGh kpv sVy v htwGh kpv sVy v h kpv v h kpv v 3 33 3 34 8 AUDIO SIGNAL BLOCK DIAGRAM ...

Страница 46: ...RCUIT DIAGRAMS 1 POWER SMPS CIRCUIT DIAGRAM WHEN SERVICING THIS CHASSIS UNDER NO CIRCUMSTANCES SHOULD THE ORIGINAL DESIGN BE MODIFIED OR ALTERED WITHOUT PERMISSION FROM THE LG CORPORATION ALL COMPONENTS SHOULD BE REPLACED ONLY WITH TYPES IDENTICAL TO THOSE IN THE ORIGINAL CIRCUIT SPECIAL COMPONENTS ARE SHADED ON THE SCHEMATIC FOR EASY IDENTIFICATION THIS CIRCUIT DIAGRAM MAY OCCASIONALLY DIFFER FRO...

Страница 47: ...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 37 3 38 2 TUNER CIRCUIT DIAGRAM ...

Страница 48: ...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 39 3 40 3 AVCP CIRCUIT DIAGRAM ...

Страница 49: ...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 41 3 42 4 HI FI CIRCUIT DIAGRAM ...

Страница 50: ...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 43 3 44 5 SYSTEM CIRCUIT DIAGRAM ...

Страница 51: ...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 45 3 46 6 I O MICOM CIRCUIT DIAGRAM ...

Страница 52: ...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 47 3 48 7 I O JACK CIRCUIT DIAGRAM ...

Страница 53: ...3 49 3 50 8 HDMI CIRCUIT DIAGRAM HDMI MODEL ONLY ...

Страница 54: ...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 51 3 52 9 VIDEO AUDIO CODEC MSP CIRCUIT DIAGRAM ...

Страница 55: ...3 53 3 54 10 KEY CIRCUIT DIAGRAM ...

Страница 56: ...0V 60 0V 0V 61 0 54V 0 35V 62 0V 0V 63 0V 0V 64 0V 0V 65 0 15V 1 31V 66 0 54V 0 31V 67 2 46V 2 35V 68 0 48V 0 27V 69 2 48V 2 49V 70 2 48V 2 49V 71 0V 0V 72 2 47V 2 48V 73 4 96V 4 98V 74 2 47V 2 48V MODE PIN EE PLAY 75 2 47V 2 48V 76 2 47V 2 48V 77 0 01V 0V 78 0 55V 0 40V 79 4 96V 4 98V 80 4 96V 4 98V 81 0 53V 0 40V 82 0 32V 2 04V 83 0 02V 3 91V 84 0 47V 0 61V 85 1 15V 0 15V 86 0V 4 96V 87 0V 4 96V...

Страница 57: ...uF 16V 1 808V 0mV 1 808V 0mV C451 1uF 16V 1 81 0mV 1 81 0mV C454 47uF 6 3V 3 295V 0 3mV 3 295V 0 3mV C468 47uF 6 3V 3 295V 0 3mV 3 295V 0 3mV C470 10uF 16V 0 5mV 0 3mV 0 5mV 0 3mV C474 47uF 6 3V 3 295V 0 2mV 3 295V 0 2mV C492 47uF 6 3V 4 96V 0mV 4 96V 0mV C493 10uF 16V 2 472V 0mV 2 472V 0mV C494 1uF 16V 3 294V 0mV 3 294V 0mV C496 10uF 6 3V 3 295V 0mV 3 295V 0mV PART HI FI F JACK AMP C801 10uF 16V ...

Страница 58: ...Q803 KTA1268 BL 35 5V 36V 36V 35 5V 36V 36V Q804 KTC3198 0 686V 12 3mV _0 7mV 0 686V 12 3mV _0 7mV PART JACK Q906 KRA103S 5 29V 5 26V 13 1mV Q904 KTA1504S 5 29V 5 29V 4 53V Q905 KTA1504S 5 29V 5 29V 4 53V Q906 KTA1504S 5 29V 5 27V 13 6mV Q907 KRA103S 5 29V 5 27V 12 9mV Q909 KTC3875S _O 4mV 253 3mV 0 780V Q910 KTC3875S 1 5V 5 12V 17 8mV Q911 KTC3875S _0 5mV 2 5mV 0 696V Q912 KTC3875S _O 2mV 2 9mV 0...

Страница 59: ...3 61 3 62 PRINTED CIRCUIT BOARD DIAGRAMS 1 VCR P C BOARD TOP VIEW ...

Страница 60: ...3 63 3 64 VCR P C BOARD BOTTOM VIEW ...

Страница 61: ...3 65 3 66 2 SMPS P C BOARD TOP VIEW BOTTOM VIEW 3 HDMI P C BOARD TOP VIEW BOTTOM VIEW ...

Страница 62: ...3 67 3 68 4 KEY P C BOARD TOP VIEW BOTTOM VIEW ...

Страница 63: ...3 69 3 70 MEMO MEMO ...

Страница 64: ...Q909 Q913 Q914 NO Check the PVM02 Pin44 Check the PVM02 Pin42 Check the PVM02 Pin40 Check Connection of the Connector PVM02 YES YES Check the Comp mute H signal Q909 Q913 Q914 IC902 Pin6 Check Input C902 Pin8 Check Input YES IC902 Pin7 Check Input YES YES YES YES YES NO NO NO IC902 Pin1 2 3 signal check Check IC1101 Power and Other Circuits Check the PVM02 Pin42 L1313 Check Signal in DVD Board YES...

Страница 65: ...MPOSITE No Signal R911 YES NO C919 IC901 Pin15 Check input Check TP1 on DVD Board NO NO YES IC901 Pin4 No Signal IC901 Replace NO Check IC1101 Power and Other Circuits Check Connection of the PMV01 PVM02 YES YES VDR ELECTRICAL TROUBLESHOOTING GUIDE ...

Страница 66: ...ck Signal IC401 Pin8 Check X401 Clock Oscillated IC401 Pin51 HIGH RST_VDEC NO NO YES Check IC401 Pin72 VI_CLK NO YES Check the I2C Signal SDA SCL of the 2C401 Pins44 45 NO YES Check IC401 Power and other Circuits Check IC401 Pin56 57 VI_D0 VI_D7 NO YES TU701 Pin1 27 Check signal And circuit YES When playing DISC no COMPONENT COMPOSIT S VIDEO Signal Check VDR ELECTRICAL TROUBLESHOOTING GUIDE ...

Страница 67: ... L Is there a Signal IC402 Pins1 16 Z_mute H IC501 Pin58 A_mute H IC501 Pin56 D_mute H 4 WHEN PLAYING DISC NO AUDIO OUTPUT IN VCR BOARD NO IC1101 Defect NO Replace PMI01 PVM02 NO YES YES Check Cable connection TV Audio mute YES Check PMI01 PVM02 PMI01 Pins22 23 24 26 PVM02 Pins25 27 28 29 IC802 Pin1 7 Is there a Signal Check IC1101 AR1105 AO_DO AO_MCLK AO_SCLK AO_FSYNC Check IC402 Pins2 4 SPI Pins...

Страница 68: ...eck L920 Check Vcc T5 0V of the JK902 Check PVM02 Pin26 SPDIF YES R1105 NO Check PCB Pattern between PVM02 Pin26 and R923 YES Check JK902 JK901 Cable Connection YES No Optical Digital Output 5 NO OPTICAL DIGITAL OUTPUT Check R923 VDR ELECTRICAL TROUBLESHOOTING GUIDE ...

Страница 69: ...D L1105 1 25V L1141 2 5V L1104 3 3V L1110 5V Check IC1201 Pin45 46 SDRAM_CLK The Frequency is about 162MHz NO Check PVM01 Pin2 3 1 25V Pin4 2 5V Pin5 6 3 3V Pin9 5V NO NO NO YES Replace X1101 Check IC1301 Pin11 12 26 28 Pin11 Flash_WE Pin12 SYS_RST Pin26 Flash_CS Pin28 Flash_OE NO Check X tal X1101 13 5MHz NO YES Check IC1302 Pin2 23 BA Signal and Pin25 E5_ ALE Check SDRAM_CLK About 162MHz Yes Abo...

Страница 70: ...3 77 1 SYSTEM BLOCK WAVEFORMS 1 Main Clock Frequency 13 5MHz 2 DDR RAM Clock Pins45 46 Frequency 162MHz 1 2 ...

Страница 71: ...3 78 3 5 6 4 DDR Bank Address 4 5 DDR RAS CAS 6 DDR Write Enable Pin21 Pin22 Pin23 3 Pins26 27 ...

Страница 72: ...3 79 2 DV BLOCK TPA TPB 4 3 2 1 1 2 3 4 ...

Страница 73: ...3 80 3 USB BLOCK D 1 2 1 2 ...

Страница 74: ...C958 SCART 1 2 A_R L 3 YPbPr RGB YPbPr Coaxial Optical COAXIAL OPTICAL TUNER TU_AV_in 2 4 VI _ CLK I2C SCL SDA E5_ Y Pb PrRGB AO _ I 2S Audio 4 E5_ CVBS 3 ATA_INT IORDY DMARQ SIF E5_ Y C 2 DSCL DSDA HDMI_ CEC HDMI BOARD HDMI BOARD AV1_IN 3 DVD DVD TP 1395 Signal USB HDMI TX_SIGNAL 8 3 USB Signal 8 Vi _ D 0 7 DVD IR UART TX RX AI _ I2S Audio 4 VO _ D 0 7 8 VO _ CLK HDMI IRQ HDMI _ RST VCEC IRQ VDEC...

Страница 75: ...TAG Interface IO u COM IC601 DVD_RESET SPI_CS0 SPI_MISO SPI_MOSI SPI_CLK AUDIO DAC PCM1780 AO_D0 AO_MCLK AO_SCLK AO_FSYN C SPI_CS1 DECORDER SAA7138 AI_FSYN AI_SCLK AI_MCLK AI_DO SCL SDA 8 VI_CLK VI_D 2 9 VDEC_RST VDEC_IRQ HDMI HDMI_RST HDMI_IRQ VO_CLK VO_D 0 7 AO_IEC958 8 ATAPI_DATA 0 15 ATAPI_CON TROL 16 12 DSP MN 103SC7G FrontEnd 8 4 1394 DV Input PHY TSB41AB BIO_PHY_DATA 0 7 BIO_PHY_CON TROL 7 ...

Страница 76: ... 2 5V 1 25V 1 25V IC1201 1202 HYB25D512160CE VREF VTT IC1101 DMN 8623 IC1302 74LV16373ADGG IC1301 MX29LV320CTTC IC1601 TSB41AB1PHP DVDD AVDD PLLVDD V33PHY PMH01 1 2 25 26 28 29 30 5VD 3V3D 1 8V LIC601 AP1122EA VDD VDD VPPEX DRAMVDD AVDD_TX AVDD_RX AVDD VDD 1 2V 3 3V 5V LIC201 MN 103SC7G 3 3V 1 2VD 3 3V 5V VCC VCC 3 3V 5V LIC101 AN 22117A VHALF VHALF SVREF STMD STMDN HDVREF CORF VC DVCC AVM VHALF 5...

Страница 77: ...3 128 127 15 14 100 99 98 VCR_A_L_IN VCR_A_R_IN C481 C480 126 125 AV2_A_L_IN AV2_A_R_IN C478 C479 123 122 AV1_A_L_IN AV1_A_R_IN DVD_A_L_OUT DVD_A_R_OUT SIF AI_MCLKI 95 AO_DO AO_FSYNC AO_SCLK AR1105 6 7 8 AO_MCLKO AUDI AUDIO DAC DAC PCM178 PCM1780 C855 1 16 Z_MUTE_L Z_MUTE_R Q404 Q403 IEC958 VCR VCR BOARD 5 CE SCL SDA IDC_CLK DAT 45 44 R1105 R670 DVD DVD BOARD OARD Analog og Circui Circuit AR1106 ...

Страница 78: ...OUT L1308 L1311 L1312 L1313 DAC1 DAC4 DAC5 DAC6 35 8 14 L1514 L1520 L1519 TU_V_IN AV1_V_IN AV2_V_IN 27 L1518 MI MIXER XER VI VIDEO DECODER DECODER SAA7138 SAA7138 RR1501 VI_D 5 2 VI_D 7 4 VI_D 3 0 VI_CLK R1520 VI_CLK VCR VCR BOARD VO_D 7 4 VO_D 11 8 VO_D 15 12 AR1701 AR1702 AR1703 AR1704 R1701 GPIO5 R1458 CE SCL SDA IDC_CLK DAT 51 44 43 65 64 63 62 61 58 57 56 72 ...

Страница 79: ...3 91 3 92 6 DV1394 USB BLOCK DIAGRAM TP_A1 TP_A1 TP_B1 TP_A TP_A TP_B TP_B TP_B1 VCR R DVD UBS_BDPO UBS_BDMO USB_OC_O UBS_VCC UBS_BDPO UBS_BDMO UBS_VCC UBS_BDPO UBS_BDMO TP_A1 TP_A1 TP_B1 TP_B1 ...

Страница 80: ...3 93 3 94 CIRCUIT DIAGRAMS 1 MPEG CIRCUIT DIAGRAM ...

Страница 81: ...3 95 3 96 2 DDR LATCH FLASH RESET CIRCUIT DIAGRAM ...

Страница 82: ...3 97 3 98 3 DV1394 INTERFACE CON CIRCUIT DIAGRAM ...

Страница 83: ...3 99 3 100 4 RF IC MOTOR DRIVE IC CIRCUIT DIAGRAM ...

Страница 84: ...3 101 3 102 5 DSP CIRCUIT DIAGRAM ...

Страница 85: ... 2 388V 018V 2 367V 020V C1208 22uF 10V 20 2 391V 018V 2 371V 020V C1217 22uF 10V 20 2 390V 018V 2 371V 020V C1226 22uF 10V 20 1 195V 018V 1 187V 020V C1227 22uF 10V 20 1 195V 018V 1 186V 020V C1706 22uF 10V 20 1 809V 018V 1 809V 020V AL Cap C1147 220uF 6 3V 20 3 168V 018V 3 160V 020V C1705 220uF 6 3V 20 4 925V 018V 4 874V 020V LC414 100uF 16V 20 12 160V 018V 12 121V 020V LC751 100uF 16V 20 3 152V...

Страница 86: ...3 105 3 106 PRINTED CIRCUIT BOARD DIAGRAMS 1 VDR LOADER P C BOARD TOP VIEW BOTTOM VIEW ...

Страница 87: ...3 107 3 108 MEMO MEMO ...

Страница 88: ...r Jog 4 12 DECK MECHANISM ADJUSTMENT Fixtures and tools for service 4 13 1 Mechanism Assembly Mode Check 4 14 2 Previous Preparation for Deck Adjustment 4 15 3 Torque Measuring 4 15 4 Guide Roller Height Adjustment 4 16 4 1 Prior Adjustment 4 16 4 2 Fine Adjustment 4 16 5 Audio Control A C Head Adjustment 4 17 5 1 Prior Adjustment 4 17 5 2 Tape Path Check between Pinch Roller and Take up Guide 4 1...

Страница 89: ... Arm T up 1 hook A 5 T 20 Supporter capstan Chassis Hole A 6 B 17 18 21 Belt Capstan Motor Capstan 3 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 A7 B 24 2526...

Страница 90: ...pe seen in the reverse direction 1 Disassembly of Drum Assembly Figure A 1 1 Separate 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 Cautions in assembly of FPC ...

Страница 91: ...ND ASSEMBLY OF DECK MECHANISM 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 92: ...the left part after inserting the E part of the holder assembly CST into the groove on the E part of chassis 4 Disassembly of Gear Assembly Rack F L Fig A 2 3 1 Separate the hook H3 while bending 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 For re assembly mate the gear part of gear assembly rack F L ...

Страница 93: ...e screw S4 from the chassis and lift motor up 9 Gear Wheel Fig A 3 2 1 Release the hook H5 of the gear wheel and lift it upward 10 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 counter clock wise 11 Head F E Fig A 3 4 1 Separate the A part of the head F E from the embossing of chassis and hold it up while turning it ...

Страница 94: ...he lever spring hook H6 2 Disassemble the brake assembly T while lifting it upward 14 Arm Assembly Tension Fig A 4 2 1 Release the spring tension H7 from the arm assembly tension 2 After releasing the hook H8 of the base tension sepa rate it while lifting it up 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...

Страница 95: ... P4 up while turning it counter clockwise 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 coun ter clockwise 18 Arm Assembly Pinch Fig A 5 3 1 Lift 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 lift it upward For the assembly ...

Страница 96: ...apstan Fig A 6 1 1 Turn the supporter and Capstan by 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 disassemble 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...

Страница 97: ... then line up the gear cam hole C to the chassis hole 25 Gear Sector Fig A 7 3 1 Release the hook H11 of the gear sector and then lift 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 lifting it up 28 Lever Tension Fig A 7 6 1 R...

Страница 98: ...ard For the assembly check that the holes of both the gear assembly P2 and P3 are adjusted straightly and then line up 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 moving it toward the arrow A direction along with the guide hole of chassis 2 Disassemble the base assembly P2 downward w...

Страница 99: ...the A part of the base tension from the emboss ing of chassis 2 Lift 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 Take care to ensure that the D part in the drawing is not hung on chassis in disassembly CAUTIONS ...

Страница 100: ... V HT T 300 250 200 150 50 0 300 250 200 150 50 0 100 1 Cassette Torque Meter SRK VHT 303 Not SVC part Part No D00 D006 2 Alignment tape Part No NTSC DTN 0001 PAL DTN 0002 3 Torque gauge 600g Cm ATG Part No D00 D002 4 Torque gauge adaptor Part No D09 R001 5 Post height adjusting driver Part No DTL 0005 6 Type driver ø5 ...

Страница 101: ...2 3 If it is done as in the paragraph 2 Turn the gear cam as in No 2 after dismantling the motor assembly L D 4 Undo the screw fixing the deck and the main 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 ...

Страница 102: ...k followings when the tape is not smoothly wound or the tape velocity is abnormally proceeded Fixtures and tools used VCR VCP status Measuring method Torque Gauge Play FF or Review Try to operate the VCR VCP per mode with the 600 g cm ATG REW Mode tape not inserted See 2 Prior Preparation for Torque Gauge Adaptor Deck Adjustment Cassette Torque Meter Measure after adhering and fixing the torque SR...

Страница 103: ... height Standard test tape CH 2 NTSC SW 30Hz tape adjusting screw Post height adjusting PAL SW 25Hz driver Head switching output point RF Envelope output point Adjustment Procedure 1 Move the tape and check the bottom surface of the tape travels along with the guide line of the lower drum 2 If the tape travels toward the lower part of guide line on the lower drum turn the guide roller height adjus...

Страница 104: ...k Tape Play the blank tape Tilt adjusting screw C Empty Tape empty tape Height adjusting screw B Driver Type ø 5 Azimuth adjusting screw A Adjustment Procedure Adjustment Diagrams 1 Basically use the A C head assembly adjusted as in SPEC 2 Check if there is crumpling and folding of the tape around the A C head If it is Turn and adjust the tilt adjusting screw to ensure that the tape corresponds to...

Страница 105: ...re the RF waveform is flat tened CAUTIONS 5 3 Fine Adjustment Azimuth Adjustment Fixtures and tools used Connection position VCR VCP status Adjustment position Oscilloscope Audio Output Jack Play the standard test Azimuth Adjusting Standard test tape Tape 1KHz 7KHz Screw A only for SP Height Adjusting Screw Driver Type ø 4 B Adjustment Procedure 1 Connect the probe of Oscilloscope to the audio out...

Страница 106: ...e of adjustment To adjust and stabilize the height change X distance change etc depending on the guide roller after assembling the drum 8 Check of Traveling Device after Deck Assembly 8 1 Audio RF Normalization Time Locking Time Check in Play after CUE or REV Fixtures and tools used Measuring standard Connection position VCR VCP status Oscilloscope RF Locking Time Within CH 1 PB RF Envelope Play t...

Страница 107: ...tch 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 Torque Pollution of Drum and Traveling Device Tape loosely wound in REV or Unloading o F...

Страница 108: ...ela tionship between using time and checking time 4 Tools for Check and Repair 1 Grease Floil G 3114 KANTO or equivalent grease Green 2 Grease Kanto G 754 PL 433 Yellow 3 Alcohol Isopropyl Alcohol 4 Cleaning Patch cloth 5 Maintenance Process 5 1 Removal of Foreign Material 1 Removal of foreign material from video head Fig C 9 4 First try to use a cleaning tape Use a cleaning patch if foreign mater...

Страница 109: ...r Side Surface and Top Surface of Loading Path 2 Stable Adhesion Part of Base P2 P3 3 Arm Pinch Shaft 4 Gear Wheel Shaft 5 Reel S T Shaft 1 2 3 4 KG 684G Green 5 PL 433 Yellow 1 Inner Side Surface and Top Surface of Loading Path 2 Stable Adhesion Part of Base P2 P3 Coil 3 Gear Cam Shaft 4 Gear Drive Shaft 5 Clutch Shaft Groove 6 Guide Part on the Plate Slider Side Wall Left 7 Guide Part on the Pla...

Страница 110: ...4 23 PROTECTION MAINTENANCE AND CHECK OF VIDEO FUNCTION 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 111: ...e mode SW assembled correctly refer to Pages 4 14 Replace LED Replace End sensor YES No F R modes YES NO Does the Capstan Motor rotate Is the normal voltage supplied to the Capstan Motor Vcc1 Vcc2 YES NO YES YES Does the T Up Supply Reel rotate Is terminal voltage Vctl of Capstan Motor supply side more than 4V YES Check Servo Power Circuits NO Check the syscon power Is the Vcc voltage of End senso...

Страница 112: ...lace Drum Motor Is the output of DFG DPG OK Check aligment positions page 4 14 Check Pinch spring NO NO NO YES D No cassette loading Does the lever Assembly S W work normally Check CST Holder Assembly Insert the cassette YES NO Check Syscon Circuit Check Syscon Circuit YES YES NO 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...

Страница 113: ...minal voltage of Capstan Motor supplied more than 4V NO YES YES Are the T Up Supply Reel Sensors ok Replace the Capstan Motor YES Check Syscon Circuit Check Servo Syscon Is the Vcc voltage of the Drum Motor normal NO NO YES Check Syscon Circuit Is the terminal voltage of the Drum Motor more than 2 3V NO YES Replace the Drum Motor Does the Drum Motor turn Is the Voltage supplied to the Capstan Moto...

Страница 114: ... syscon circuit Check power circuit Is the Vcc of Main P C Board 5V Check Mode switch location and syscon circuit YES YES Does the Lever Assembly Switch work Replace lever Assembly Switch NO YES Does the F L Arm Assembly work normally Replace F L Arm Assembly NO YES Does the Door Opener work Replace the Door Opener NO Is there a short circuit between cassette switch and GND on main P C Board Is th...

Страница 115: ... the Door Opener work Replace the F L Rear Rack NO Does the F L Arm Assembly work Is the Door opener assembled correctly YES NO Does the L D Motor work Replace the F L Arm Assembly YES NO Does the Cassette Holder Assembly move the F L Arm Assembly Check the power of L D Motor YES NO Replace the Front Loading Mechanism Assembly Is the Cassette Holder Assembly assembled correctly ...

Страница 116: ...4 29 EXPLODED VIEWS 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 117: ...4 30 EXPLODED VIEWS 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 118: ...4 31 EXPLODED VIEWS 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 119: ...4 32 MEMO ...

Страница 120: ...INTERNAL STRUCTURE OF THE PICK UP 5 25 1 BLOCK DIAGRAM OF THE PICK UP HOP 7232TL 5 25 2 PICK UP PIN ASSIGNMENT 5 26 3 SIGNAL DETECTION OF THE P U 5 27 DESCRIPTION OF CIRCUIT 5 28 1 ALPC AUTOMATIC LASER POWER CONTROL CIRCUIT 5 28 2 FOCUS TRACKING SLED SERVO CIRCUIT 5 29 3 SPINDLE SERVO CIRCUIT 5 30 MAJOR IC INTERNAL BLOCK DIAGRAM AND PIN DESCRIPTION 5 31 1 LIC101 AN22117A FEP RF ANALOG SIGNAL PROCE...

Страница 121: ...C101 NO Reference 1 65V VHALF Check pin116 of LIC101 2 2V HDVREF Check pin80 of LIC101 Check the LIC401 YES NO Does the pin1 Reset of LIC401 change 0V to 3 3V at the power supply initial input mode Check the LX201 16 9MHz Check the LIC201 YES NO Are the LX201 oscillating Check the LIC701 YES YES NO Power Is the pin2 of LIC701 3 3V Check it after connecting the power cable only on interface cable f...

Страница 122: ...Recognition fail Case1 CD ROM Disc NO Does Disc rotate continuously and the drive recognize the disc Go to Recognition fail Case2 DVD Disc NO Does Disc rotate continuously and the drive recognize the disc After eject tray Insert CD ROM Disc and check rotation After eject the tray Insert DVD Disc and check rotation YES YES Go to Recognition fail Case3 Blank DVD R RW NO Does Disc rotate continuously...

Страница 123: ... pin14 15 When LPF303 is open Is there Tray drive signal output YES YES Is there Tray control signal input LIC301 pin20 NO NO NO Check the connction of LIC201 pin70 Replace the LIC201 Check the communication line between LIC201 Is the input voltage 0V at LIC201 pin49 when push the EJECT SW NO Check the connction of LIC201 pin49 YES YES YES ...

Страница 124: ...s there Sled drive voltage output LIC301 pin29 30 31 32 Is CTL2 signal H LIC301 pin17 YES YES Replace the LIC101 YES Is there Sled drive voltage input LIC301 pin25 26 NO NO NO Replace the LIC201 Is there Sled control signal output LIC201 pin75 76 NO YES Replace the Sled Motor Is there Sled drive voltage output LPM302 pin1 2 3 4 NO YES YES ...

Страница 125: ...LIC301 Replace the LIC201 OK Check the Connection LPM301 Is there Spindle drive voltage output LIC301 pin35 36 37 Is there FG signal input LIC201 pin65 YES YES Is there Spindle control DSP output LIC201 pin77 NO NO NO YES Replace the Spindle Motor Is there spindle Motor input voltage LPM301 pin1 2 3 NO YES ...

Страница 126: ...Power is 1 3 1 7mW YES YES Is FDRV signal output normal in focusing Up Down LIC201 pin 69 NO NO NO YES Focus actuator operating is abnormal Check the connection of LIC101 pin127 Replace the LIC101 Check the connection LPM101 pin5 6 Is there focus search drive voltage output LIC301 pin7 8 Is CTL2 signal H LIC301 pin17 YES Replace the pick up Replace the LIC301 YES Is there focus search control sign...

Страница 127: ...uator operating is abnormal LIC101 pin20 is MOUT1 FEP Monitor1 After disc recognition action Monitor port is off So please check TE signal during disc recognition Is TE signal output normal in focusing ON and tracking OFF LIC101 pin20 Is PICK UP E F G H output normal LPM101 pin35 38 39 42 YES YES Is there TDRV signal output in tracking ON LIC201 pin73 NO NO NO YES ...

Страница 128: ... unstable YES NO Does focus servo operate normally Check the pick up FFC and LPM101 Replace the pick up YES NO Check pick up RF signal LIC101 pin83 RFOUT was about 400mV Replace LIC101 YES NO Check EQOUTP waveform LIC101 pin65 was about 400mV Go to Tracking servo is unstable YES NO Check after replacing LIC201 It is OK OK ...

Страница 129: ...pin78 Replace the LIC101 YES NO Is there RF signal at LIC101 pin88 RFP and pin87 RFN Replace the LIC201 YES NO Check again after the replace LIC101 It is OK OK Recognition fail case 3 Blank DVD R RW Replace LIC201 Replace LIC101 Is there WBL LIC101 pin63 Signal Is there WBL LIC201 pin63 Signal YES Check the connection between LIC101 and LIC201 YES NO NO ...

Страница 130: ...k the media DVD R RW Remove the dust fingerprint and if the disc has long width scratch change it YES Does the disc have any dust scratch fingerprint Eject disc YES NO Finalized disc Go to Writing part check If DVD R disc use new DVD R disc If DVD RW disc erase the disc ...

Страница 131: ...tray Load tray with DVD R RW disc Press the REC key YES Does writing finish without any error YES NO NO Is the written file read normally YES Is the re written file read normally Go to LD CHECK Check and replace LIC201 LIC101 YES OK ...

Страница 132: ...ow to use test tool Check reference voltage NO YES Is ALPC parameters valid Perform 6 Optical power setting parameter check from How to use Test tool OK Perform 5 Optical Power Setting N G OFF level OK N G W1SET level FPD OK N G W2SET level FPD OK N G W3SET level FPD OK E F G ...

Страница 133: ...of 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 pin10 of LPM 101 Check the input of CD DVD pin10 of LPM101 Check the input of W1SET pin12 of LPM101 Check the input of FPD pin123 of LIC101 END E ...

Страница 134: ...e input of recording pulse pin19 20 21 22 23 24 of LPM101 Check the input of FPD pin123 of LIC101 END F Check the input of CD DVD pin10 of LPM101 Select Mode DVD Test and perform Test from 4 LD Test of How to use Test tool Check the input of W3SET pin14 of LPM101 Check the input of recording pulse pin19 20 21 22 23 24 of LPM101 Check the input of FPD pin123 of LIC101 END G ...

Страница 135: ...5 16 THE DIFFERENCE OF DVD R RW DVD R RW DISCS AND DVD ROM 1 RECORDING LAYER DVD ROM Read Only Disc 0 74um 3T 0 4 um DVD R RW Disc ...

Страница 136: ...5 17 2 DISC SPECIFICATION 3 DISC MATERIALS 1 DVD ROM ...

Страница 137: ...principles Recording Recording is done by changing the organic dye layer and the substrate with 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 l...

Страница 138: ...ording When a high power laser is applied to the recording material it melts and then becomes amorphous with a low reflection coefficient when it quickly cools off When a mid power laser is applied to heat gradu ally the recording material and then gradually cools it off it becomes crystal with a high reflection coef ficient Playback A low power laser is used for playback The amount of reflected l...

Страница 139: ...nt separated short pulses In MP type each single mark is created by one continuous pulse Write Strategy for DVD RW has Type 1 and Type 2 In Type 1 the mark with nT width is created by one top pulse and n 2 mul ti 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 on...

Страница 140: ...5 21 4 ORGANIZATION OF THE INNER DRIVE AREA OUTER DRIVE AREA LEAD IN ZONE AND LEAD OUT ZONE 1 Layout of DVD ROM disc 2 Layout of DVD R disc ...

Страница 141: ...5 22 3 Layout of DVD RW disc ...

Страница 142: ...5 23 4 Layout of DVD R RW disc ...

Страница 143: ...e remote controller to enter 5 7 2 0 into the set When they are normally entered the GUI is displayed as shown at Fig 1 3 When you select Yes the optical power setting is automatically proceeded and it takes about 20 seconds 4 When setting is finished OK or NG is displayed on the screen The OK screen is displayed for the normal termination Fig 2 The NG screen is displayed for the abnormal terminat...

Страница 144: ...nd OEIC Vcc OEIC GainSw Gnd LDD ENBL IR I1 I2 I3 W1DIS W1DISN W2DIS W2DISN Tilt Tilt TR TR AF AF W3DIS W3DISN OSCEN OSCENN Vdd LDD Gnd LDD 18 CD VR IC2 FM IC1 LDD DVD LD CD LD Disc side Top View IC3 OEIC F4 D C A B F3 F1 F2 E4 E3 E1 E2 DVD V R In High Out Low Out Vref Out Gnd Vcc High Gain High Low Gain Low SW R14 0 R15 0 C16 R8 R7 R6 R5 R4 R3 R2 R1 R12 C1 C2 ENBL R9 R10 R11 C9 C8 C6 C18 C19 C7 EF...

Страница 145: ...supply for LDD 5 V 21 W2DIS LVDS control for output current Low active LVDS I 22 W2DISN LVDS control for output current LVDS I 23 Gnd LDD Ground connection for LDD 24 W3DIS LVDS control for output current Low active LVDS I 25 W3DISN LVDS control for output current LVDS I 26 Vdd LDD Power supply for DD 5 V 27 OscEn LVDS control for Oscillator High active LVDS I 28 OscEnN LVDS control for Oscillator...

Страница 146: ...ontrols the pick up s up and down to focus on Disc 2 Tracking Error Signal DPP Method A D B C k x EF1 EF4 EF2 EF3 This signal is generated in RF IC LIC121 AN22113A and controls the pick up s left and right shift to find track on Disc 3 RF Signal A B C D This signal is converted to DATA signal in DSP IC LIC201 MN103SA6G ...

Страница 147: ...s 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 aver age peak value detection path erase bottom value detection path space playback power value detection path MN103SC7G Write Strategy LIC201 LPM101 Optical Pick up HOP 7232TL LD PD LDD ...

Страница 148: ... D A B C D E F G H A B C D E F G H LIC101 AN22117A LIC201 Servo Control MN103SC7G TE FE A D A D D A C SLED COMPENSATOR A D TE FE PARALLEL DIGITAL COMPENSATOR SDRV 76 75 STEP2 STEP1 LIC301 BD7776ARFS 25 26 M Stepping Motor Logic A 30 29 31 32 A B B Tracking Focusing Actuator T T F F 6 5 LEVEL SHIFT FDRV TDRV 10 9 8 7 69 73 LEVEL SHIFT Focus Tracking Sled Servo ...

Страница 149: ...T 3 1 Spindle Servo Process F E D C A B H G Pick up Wobble Signal Generator RF LIC101 AN22117A WBLIN EFM SRF SERVO DSP Phase Controller Frequency Controller 77 SPDRV LIC201 MN103SC7G LIC301 BD7776ARFS M Spindle Motor Level Shift ...

Страница 150: ...LF 17 SEO1 18 SEO2 19 MOUT0 20 IWRT1 25 IWRT2 26 IWRT3 27 GND7 28 CLPCLPF 29 RVREF 30 VCC7 31 STMOUT 32 TC 33 WIDGT SH4 39 SH3 40 SH2 41 SH1 42 FEPIDGT SH6 43 SH5 44 VCC4 45 VCC51 34 OFTR 35 BDO 36 GND5 37 LSDAT 46 LSCK 47 LSEN 48 TGCHG 49 N C N C N C 50 CHSEL 51 SEN 52 SCK 53 SDAT 54 55 RSEN 56 RSDAT 57 58 VCC52 59 GND4 60 ASENV LPPM 61 LPPS 62 WBL 63 CLUMPGT 64 PAD0 65 PAD1 66 PAD2 67 PAD3 65 VC...

Страница 151: ...2 P03 P04 P05 P06 PI00 PI01 PIo2 PI03 PI04 EQOUTA EQOUTB FLTAMP RFIN2 RFIN1 RFOUT BDO RSEN RSDAT SDAT SCK SEN LSDAT SCK LSENI GCHG RREF MPX MPX TCOP TCON TCO TIOP TION SBDOAS TIO VREF VREF Block GATE Block To Each Block GATE From LOGIC VGA VGA To Each Block To Each Block To LPC Block From LOGIC To MFX OFST HPF EQ CLMP AMP RF Gene Block RF Gene Block LPCDAC Block JLINE Block RFEQ Block SRF P0 PI0 B...

Страница 152: ... of each error signal 20 MOUT0 O Analog monitor 0 21 MOUT1 I O Analog monitor 1 22 MOUT2 I O Analog monitor 2 23 VCC8 PS Power supply pin for LPC 5 0V 24 IREAD O DAC electric current output pin for READ 25 IWRT1 O DAC electric current output pin 1 for WRITE 26 IWRT2 O DAC electric current output pin 2 for WRITE 27 IWRT3 O DAC electric current output pin 3 for WRITE 28 GND7 PS GND pin for LPC 29 CL...

Страница 153: ...le input pin for FEP pull down 53 SCK I Serial clock input pin for FEP pull up 54 SDAT I O Serial data input pin for FEP 55 NC 56 RSEN I Serial enable input for RF pull down 57 RSDAT I Serial signal data input for RF 58 VCC52 PS Power supply pin for CMOS I F internal current source power supply pin2 3 3V 59 GND4 PS Ground pin for internal LOGIC 60 ASENV LPPM O ASENV output LPP mark output pin 61 L...

Страница 154: ...onnection pin for VGA before SRL 94 CWAGC2 I AGC adjustment capacitor connection pin 2 for WBL extraction 95 CWAGC1 I AGC adjustment capacitor connection pin 1 for WBL extraction 96 VCC21 PS 97 NC 98 NC 99 NC 100 GND2 PS Power supply pin for RF gene WBL 5 0V 101 AIN I DVD Tracking input pin 1 102 BIN I DVD Tracking input pin 2 103 CIN I DVD Tracking input pin 3 104 DIN I DVD Tracking input pin 4 1...

Страница 155: ...21 VCC3 PS Power supply pin for APC OPC ASENV 5 0V 122 VREF25 O 2 5V reference voltage output pin 123 VPD I DVD front monitor signal input pin 124 VREFPD I Front light system reference level input pin 125 GND3 PS Ground pin for APC OPC ASENV 126 PO6 O Ground CMOS output pin 6 127 PO5 O Ground CMOS output pin 5 128 PO4 O Ground CMOS output pin 4 I Input pin O Output pin I O I O pin PS Power supply ...

Страница 156: ...123 VDD3 124 VSS 125 VDD12 126 OFTR 127 TC 128 VREFH 129 RVI 130 AVSSD1 131 CPOP2 132 CPOP1 133 AVDD33D1 134 SE02 135 SE01 136 AVSSA 137 AVDD33A 138 CDA1 139 REFTOP 140 REFBTM 141 REGDRC 142 EQOUTB 143 EQOUTA 144 AVDD33DRC 107 PK3MD 106 NPK2MD 105 PK2MD 104 NPKMD 103 PKMD 102 NBSMD 101 BSMD 100 VDD3 99 P06 98 VDD5 97 VDD3 96 VDD12 95 VDD18 94 VSS 93 LDDENA 92 P02 91 VPPEX 90 SEN 89 P30 88 SCK 87 N...

Страница 157: ...and Internal data memory On Chip Debugger Resistor bus Watchdog Timer Interrupt ion Timer General Purpose Ports PWM Serial I F 32 bit CPU Bus control System I F Clock Generator eDRAM I F LDD FEP CIRC DVD Formatter DVD CD error correction ATAPI I F HOST eDRAM 16 Mbit 16 9 MHz Flash ROM 2 Mbytes ...

Страница 158: ...data I O 12 HDD8 I O HOST ATAPI data I O 13 HDD6 I O HOST ATAPI data I O 14 HDD9 I O HOST ATAPI data I O 15 VSS GND GND Digital Vss 16 VDD3 Power supply Power supply I O pad VDD 3 3V 17 HDD5 I O HOST ATAPI data I O 18 HDD10 I O HOST ATAPI data I O 19 HDD4 I O HOST ATAPI data I O 20 HDD11 I O HOST ATAPI data I O 21 HDD3 I O HOST ATAPI data I O 22 HDD12 I O HOST ATAPI data I O 23 HDD2 I O HOST ATAPI...

Страница 159: ...16 General purpose I O GIO PWM0 49 NEJECT I O Mecha Tray eject signal SODC external interrupt P25 General purpose I O GIO 50 TRYLOAD I O Mecha Tray eject signal SODC external interrupt P26 General purpose I O GIO 51 PVPPDRAM Power supply Cap DRAM internal power supply output 52 TRCCLK I O Trace clock P20 General purpose I O GIO TxD0 PWM0 53 TRCST I O Trace status P21 General purpose I O GIO RxT0 P...

Страница 160: ...g drive differential PWM output 74 TX I O HOST IEC60958 compliant digital output P12 General purpose I O GIO TxD0 75 PWM3A I O DRIVER Traverse drive differential PWM output stepper 1 drive output P31 General purpose I O GIO PWM0 76 PWM3B I O DRIVER Traverse drive differential PWM output stepper 2 drive output P31 General purpose I O GIO RxD0 PWM1 77 PWM4 O DRIVER Spindle drive output 78 VSS GND GN...

Страница 161: ... NPEAK1 modulation signal differential current output 105 PK2MD O PU PEAK2 modulation signal differential current output 106 NPK2MD O PU NPEAK2 modulation signal differential current output PK3MD PEAK3 modulation signal differential current output 107 SRF1 I O PU OEIC gain switching timing adjustment 1 when using external WTST P00 General purpose I O GIO TxD0 PWM0 NPK3MD NPEAK3 modulation signal d...

Страница 162: ... input 129 RVI I O Res Fixed current source for LVDS WBL and analog blocks 130 AVSSD1 GND GND WOBBLE analog Vss 131 CPOP2 I O Cap Res Filter connection pin for wobble PLL 132 CPOP1 I O Cap Res Filter connection pin for wobble PLL 133 AVDD33DI Power supply Power supply WOBBLE analog VDD 3 3V 134 SE02 I FEP Error signal output after selection analog input 135 SE01 I FEP E rror signal output after se...

Страница 163: ...ng driver non inverted output 13 AGND BTL driver GND 14 LDO Loading driver inverted output 15 LDO Loading driver non inverted output 16 CTL1 Loading driver control input 17 CTL2 Loading driver control input 18 LDVM Loading driver power supply 19 Vcc Power supply 20 LDIN Loading driver input 21 PRTRST Protect input 22 PRTFLG Protect flag output No Pin name Description 23 SLVM Motor driver power sup...

Страница 164: ...Regulator 3 3v 1 20v 1chip Sensor less Motor driv e Rohm BD7776 Host Embedded Flash ROM SDRAM 16M eDRAM DRC SERVO ODC ECC CIRC ATAPI 32b CPU DEC ENC CD ENC 16Mbit Flash Memory 16x WTST RAM 16x RAM 16x FEP AN22117 Servo MTX WBL OPC TCTI DPD SYSCON LPC LASER POWER SODC MN103SC7G Serial ...

Страница 165: ...5 46 MEMO ...

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