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HDD/DVD RECORDER SERVICE MANUAL MODEL : RH7521W/7823W/7926W CAUTION BEFORE SERVICING THE UNIT, READ THE “SAFETY PRECAUTIONS” IN THIS MANUAL. APRIL, 2005 P/NO : 3829RHP042G Printed in Korea...
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CONTENTS SECTION 1 ..SUMMARY SECTION 2 ..CABINET & MAIN CHASSIS SECTION 3 ..ELECTRICAL SECTION 4 ..RL-05 LOADER PART SECTION 5 ..REPLACEMENT PARTS LIST...
7. KEY P.C.BOARD 8. TIMER(LED) P.C.BOARD ( 5TOOL ONLY ) ( 5TOOL ONLY ) ( TOP VIEW ) ( BOTTOM VIEW ) ( TOP VIEW ) ( BOTTOM VIEW ) ( 6TOOL ONLY ) ( 6TOOL ONLY ) ( TOP VIEW ) ( BOTTOM VIEW ) ( TOP VIEW ) ( BOTTOM VIEW )
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Reset or Power Check. Check it after connecting the power cable only for NO Reset or Power ON. •Check the power(5V,12V)short. Are the pin 4, 1 of LCN202 •Check the power cable. +12V, +5V respectively after the power •Repair the power part. cable connecting? Does the pin 3 •Check the LIC505(3.3V reg.IC).
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System Check Load tray without inserting disc. Does tray operate normally? Go to “Tray operating is abnormal” Does pick-up move to inside? Go to “Sled operating is abnormal” Go to “Focus Actuator operating is Does pick-up lens move abnormal” up/down? Go to “Laser operating is abnormal”...
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Tray operating is abnormal Tray open doesn ’t work. Is the Input voltage 0V at LIC301 •Check the connection of LIC301 pin 106. pin 60 when push the •Replace the EJECT SW. EJECT SW? Is there tray •Replace the LIC502. control signal input? •Check the communication line between (LIC502 pin46)
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Sled operating is abnormal Is there sled control signal output? Replace the LIC301 (LIC301 pin 126, 127) Is there •Replace the IC102. sled drive signal input? •Check the LR532, LR533. (LIC502 pin 29, 30) Is there Is DRV-CTRL1 sled drive voltage output? signal “H”? (LIC502 pin 37~40) (LIC502 pin35)
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Spindle operating is abnormal Is there Is there spindle control DSP spindle control signal input? output(LIC301 pin 123)? (LIC502 pin 26) •Replace the LIC301 Replace the LIC301. Is there Is there spindle drive voltage output? SFG signal input? (LIC502 pin 11,13,16) (LIC301 pin 53) Replace the Spindle Motor •Replace the LIC102.
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Focus Servo is unstable Is FE signal output normal in Focusing Replace the LIC201. Up/Down? (LIC201 pin 87) Is FDRV signal output normal in Focusing •Check the R534. Up/Down? •Replace the LIC201. (LIC301 pin 124) Go to “Focus Actuator operating is abnormal” Focus Actuator operating is abnormal.
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Track Servo is unstable Is TE signal Is pick-up output normal in focusing (E, F, G, H)output normal? ON and tracking OFF? (LCN201 pin 5, 8, 9, 12) (LIC201 pin 85) Replace the LIC201. •Check the pick-up FFC. •Replace the pick-up. •After replacing Perform 5.
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Recognition Fail Case 1: CD-ROM Fail Check pick-up read power Go to “LD CHECK”. is 0.9~1.3mW? Does focus servo Go to “Focus Servo is unstable”. operate normally? Check pick-up •Check the pick-up FFC and LCN201. RF signal LIC201(Pin113) is •Replace the pick-up unit. 500~1000mVpp? Check RFEQO waveform Replace the LIC201...
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Recognition Fail Case 2:DVD Fail Check pick-up read power Go to “LD CHECK”. was 0.9~1.1mW? Is LIC201 pin 51(CD/DVD) level Replace the LIC201. was about 0V? Is there RF signal at LCN201pin 13,14. Replace the pick-up. Is there RF signal Replace the LIC201 at LIC201 pin 95.
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LD CHECK (Laser operating is abnormal) Perform 6. Optical Power Setting parameter check from‘How to use Test tool’. Execute “C.Laser Power Setup”of Is ALPC parameters “How to use Test Tool” valid? Perform 4. LD Test check from ‘How to use Test tool’. Check reference voltage.
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CD/DVD ? Select Mode: CD, Test and perform Select Mode: DVD, Test and perform Test from 4. LD Test of ‘How to use Test from 4. LD Test of ‘How to use Test tool’ Test tool’ Check the input of CD/DVD. Check the input of CD/DVD.
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Select Mode: DVD, Test and perform Select Mode: DVD, Test and perform Test from 4. LD Test of ‘How to use Test from 4. LD Test of ‘How to use Test tool’ Test tool’ Check the input of CD/DVD. Check the input of CD/DVD. (pin 17 of LCN201 : ‘L’) (pin 17 of LCN201 : ‘L’) Check the input of VWDC.
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In case of writing fail. Normal Case Check the media Check disc label. DVD ±R/RW? Does the disc Remove the dust,fingerprint and have any dust,scratch, if the disc has long width scratch, fingerprint …? change it. Finalized Disc? Eject disc. If DVD ±R disc,use new DVD ±...
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Writing Part Check Load tray with DVD ±R/RW disc. Press the “REC” key. Does writing finish without any error? Is the written file Eject tray. read normally? Go to “LD CHECK”. Is the re-written file read normally? Is SHAPCRE input signal pulse? (LIC01 pin 62) Check and replace the connection of Check and replace LIC201, LIC301.
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Recording data Twd ( 8T ) Twd (3T ) Ttop Ttop Write pulse for DVD R Zero Level Write pulse Ttop Ttop for DVD RW Zero Level...
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1) Layout of DVD-RO M disc Disc Center Diameter 120 mm Diameter 44mm Diameter 33mm Diameter 22mm Diameter 16mm Diameter 15mm Center Clamping 3th transition Inform ation Zone hole Zone area 1th transition area 2th transition area area Read Only Di s c Lead-in Zone Data Zone Lead-out Zone...
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3) Layout of DVD+RW disc Disc Center Diameter 120 mm Diameter 44mm Diameter 33mm Diameter 22mm Diameter 16mm Diameter 15mm Center Clamping 3th transition Inform ation Zone hole Zone area 1th transition area 2th transition area area Unrecorded Disc Lead-in Zone Data Zone Lead-out Zone Outer Disc...
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4) Layout of DVD-R/RW disc Disc Center Diameter 120 mm Diameter 44mm Diameter 33mm Diameter 22mm Diameter 16mm Diameter 15mm Center Clamping 3th transition Unrecorded Disc hole Area area 1th transition area 2th transition area area Inform ation Area R-Information Lead-in Lead-out Data Recordable Area...
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IC 106 ( uPC3330 ) RLDON ‘H’ CN 102 IC 201 SHAPCRE S/H & VRDC VRDC VR DCG & Gain Optical Pick-up VR DC_ HOP -7521T FPDVC uPD63630 FPDVR EF PDIN Write Strategy Write VWDC1 _ S/H Signal VWDC VWDC1 SHAPCW S/H &...
CIRCUIT VOLTAGE CHART MODE MODE MODE MODE MODE MODE MODE MODE MODE MODE MODE STATE STATE STATE STATE STATE STATE STATE STATE STATE STATE STATE PIN NO. PIN NO. PIN NO. PIN NO. PIN NO. PIN NO. PIN NO. PIN NO. PIN NO.
BATTERY,MANGANESE AAAM(R03) SEOTONG 1-5 V - 1PA 6850R-EA08Y CABLE,FLAT P=0.5 FFC UL2896 SPECIAL 80 40 6711R1P071C REMOTE CONTROLLER ASSEMBLY H3 RH4820WVL LG W/O TV/DVD 6871RZ8969C PWB(PCB) ASSEMBLY,OTHERS ATA16V2M2C4-LGDAV6(A) RH7000 S *** BOARD ASSEMBLY *** 3501RF5500P BOARD ASSEMBLY DVD RH7926CW1L NA2ALL .
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S AL LOCA. NO. PART NO. DESCRIPTION SPECIFICATION REMARKS R901 0RH1001C622 RESISTOR,METAL GLAZED(CHIP) 1K OHM 1 / 16 W 1608 5.00% D R902 0RH1001C622 RESISTOR,METAL GLAZED(CHIP) 1K OHM 1 / 16 W 1608 5.00% D R903 0RH1001C622 RESISTOR,METAL GLAZED(CHIP) 1K OHM 1 / 16 W 1608 5.00% D R904 0RH5602C622 RESISTOR,METAL GLAZED(CHIP)
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S AL LOCA. NO. PART NO. DESCRIPTION SPECIFICATION REMARKS A002 3041R-D026C BASE ASSEMBLY LOADING (DR-05 SLIM), DI 1009 4850R-0076B CUSHION DVD BASE UP/DOWN OTHER DR-02 1011 3040R-D010A BASE UP DOWN, MOLD 1012 4974R-0069A GUIDE DVD UP/DOWN(DR-02S) MOLD 1013 4970R-0217A SPRING COIL LEVER, SWITCH (DR-02) 1014 4510R-1054A...
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S AL LOCA. NO. PART NO. DESCRIPTION SPECIFICATION REMARKS P7902 561-711F CONNECTOR (CIRC),WAFER GIL-S-06P-S2T2-EF LG CABLE 6PI PN801 6630R-BE024 CONNECTOR (CIRC),BOARD TO BOAR 2254-30P-T/JE611-A2T-30T POWER PN802 6630R-BE024 CONNECTOR (CIRC),BOARD TO BOAR 2254-30P-T/JE611-A2T-30T POWER TU801 6700PFPL08A TUNER TADS-S101D LGIT PAL FS SILM- P...