Sanyo DVD-9201 Service Manual Download Page 23

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DVD P.W.BOARD OPERATION(SIGNAL)

C. Focus and Tracking Gain Adjustment

Zoom

FDO

SPD

FDO

SPD

a. Focus gain Adjustment

b. Tracking Gain Adjustment

Zoom

FDO

TDO

FDO

Summary of Contents for DVD-9201

Page 1: ...1 80 Schematic diagram DG FRONT for 9201 82 Schematic diagram DG FRONT for 9501 84 Schematic diagram DG FRONT for 9501PR 86 Schematic diagram DG FRONT for 9501KR 88 Wiring diagram FRONT for 9201 9501 9501KR 90 Wiring diagram FRONT for 9501PR 92 Wiring diagram DG SOCKET for 9501KR and POWER SW for 9501KR 9201 and 9501 94 Wiring diagram DG SOCKET for 9201 SS and POWER SW for 9501PR 96 Wiring diagram...

Page 2: ...to change without notice Pickup that emits a laser beam is used on this DVD section CAUTION USE OF CONTROLS OR ADJUSTMENTS OR PERFORMANCE OF PROCEDURES OTHER THAN THOSE SPECIFIED HEREIN MAY RESULT IN HAZARDOUS RADIATION EXPOSURE LASER OUTPUT 1 0 5 mW Max CW WAVE LENGTH 650 790 nm LASER BEAM SAFETY PRECAUTION DIGITAL OUT OPT R L VIDEO OUT MIXED 2CH AUDIO OUT S VIDEO OUT TV SYSTEM PAL NTSC VIDEO OUT...

Page 3: ...ial shock equivalent to a drop from a height of approx 90 cm under the packed condition After the initial shock the resistivity will still remain at a level of 50 to 60 G but the mechanical robustness will weaken Do not place in a dusty location The entry and deposition of dirt into or on the pickup lens or moving section will cause malfunction or degradation Connectors Do not connect or disconnec...

Page 4: ...emove the pick up from base mechanism because of adjustment difficulty 3 TRAY PART MOLYKOTE EM 50L GREASE CDF 409 GREASE CDF 409 FLOIL OIL G 474B MOLYKOTE EM 50L MOLYKOTE EM 50L MOLYKOTE EM 50L MOLYKOTE EM 50L SILICON GREASE KS 64 1 TRAY AND BASE MECHANISM PART 2 Base mechanism mounting PART ...

Page 5: ...the SLIDE left side 2 Match the Hole of GEAR 5 and Hole of CHASSIS 4 6 Match the hole of GEAR 7 and hole of chassis while turning GEAR 6 7 Match the mark of LOADING GEAR 8 and gear of TRAY where see horn hole 9 of tray 8 Push a tray with the state that turned the entire surface of a tray into approximately 5 degrees the lower part slowly CHASSIS FRONT SIDE MOTOR MARKER MARKER 1 2 2 3 3 RIB RIB GRE...

Page 6: ... DEF DEFECTO XHTR FE DEF_INH FE ANALOG SWITCH LSI_RESET HDAT 0 7 HADR 0 12 HRDB HERB HCSB HWAITB RDY HBUSYB HIRQB INT_DEC WRQ MICRO COMPUTER HALL SPINDLE MOTOR U V W U U V V W W SPD FG FR DMUTE 9V 9V IC602 BA6849 IC601 BA5937 3 PHASE MOTOR DRIVER 4 CH BTL DRIVER FDD TDD SLD OPEN CLOSE DMUTE2 CD x2 CD x4 CAO CAN LDON1 LDON2 RFSCT EQSCT PP TE DPD TE VREF MD MD LD LD LOADING MOTOR M M OPEN CLOSE SWIT...

Page 7: ...L OFSET BCA BOOT3T RFVCA TBAL FBAL SGC HFLBIAS TESBIAS FDO TDO SPDO SLDO SLCBTAS RFPI RFOP RFON DEF PH BH BCA TE WO FE RREC TOST FOST BST VGA TEBL FEBL SGC SERVO VREFS VREFS TH CPOF XHTRC DPD TE XQBH PP TE EQSCT RFSCT VREFP LDON1 LDON2 PICK APC1 RR 1 B FE 1 FE 2 RR 2 APC2 VREFP1 MTX A D C C A DVD PU DVD PU B F E DPD 2C A B 3 BEAM PUSH PULL REN REP LPF BCA TH DEFECT PEAK HOLD BOTOM HOLD TE HOLD LPF...

Page 8: ...assing defection TOST TP246 IC200 29 Trk Offset Control analog FOST TP247 IC200 30 Focus Offset Control analog BOOST3T TP248 IC200 31 RF EQ Control analog RFVCA TP249 IC200 32 RF Voltage Control analog TBAL TP250 IC200 33 Trk Balance Control analog FBAL TP251 IC200 34 Fcs Balance Control analog SGC TP252 IC200 35 Signal Gain Control anlog HFBUSYB TP254 IC200 50 Function Busy Low during jump adjust...

Page 9: ...matic diagram and signal check Top left zoon There is the drawing which zoomed to 10 11 page Top right zoon There is the drawing which zoomed to 12 13 page Bottom left zoon There is the drawing which zoomed to 14 15 page Bottom right zoon There is the drawing which zoomed to 16 17 page ...

Page 10: ... 11 10 DVD P W BOARD OPERATION SCHEMATIC DIAGRAM FOR SIGNAL CHECK for top left This is a basic schematic diagram and signal check ...

Page 11: ... 13 12 DVD P W BOARD OPERATION SCHEMATIC DIAGRAM FOR SIGNAL CHECK for top right This is a basic schematic diagram and signal check ...

Page 12: ... 15 14 DVD P W BOARD OPERATION SCHEMATIC DIAGRAM FOR SIGNAL CHECK for bottom left This is a basic schematic diagram and signal check ...

Page 13: ... 17 16 DVD P W BOARD OPERATION SCHEMATIC DIAGRAM FOR SIGNAL CHECK for bottom right This is a basic schematic diagram and signal check ...

Page 14: ... 18 DVD P W BOARD OPERATION WIRING DIAGRAM FOR SIGNAL CHECK A A side This is a basic wiring diagram and signal check ...

Page 15: ... 19 DVD P W BOARD OPERATION WIRING DIAGRAM FOR SIGNAL CHECK B B side This is a basic wiring diagram and signal check ...

Page 16: ...H BH DEFECT RF PH BH DEFECT Scratched defect Interruption defect 1 RF and Defection Signal 2 Servo and Tray Control A S Curve signal by Focus search Zero cross point RF FDO FE RF FDO FE S Curve of DVD Single Layed disc S Curve of DVD Dual Layed disc Each signal shown refers to WIRING SCHEMATIC DIAGRAM and Table of monitor signals This is a basic signal ...

Page 17: ...L B Focus In and Focus Jump Cross point RF FDO FE Zero cross point Brake pulse Kick pulse RF FDO FE Focus In Focus Jump C Tracking Servo RF TE a TE Tracking Error Signal TE Curve b Track Jump Signal One Track Jump 42 Track Jump Out In ...

Page 18: ...vo Sled motor drive signal RF TE TE SLDO SLDO Zoom RF E Spindle Servo Spindle motor drive signal U V W SPD U U FG Spindle Drive U V W Spindle W W FG F Tray open and close CLOSE OPEN OPEN SW CLOSE SW CLOSE OPEN OPEN SW CLOSE SW Tray Close Tray Open ...

Page 19: ... 4 3218MHz CD Normal speed RF EFMOUT SBAIS RF EFMOUT PCK 4 Reset Timing for Micom Cotroller Reset Timing 5 Anti Defect Processing A Disturbance by Defect RF TE Disturbance of tracking Defect RF TE FE DEFECT0 TE disturbance at Defect Suppressed disturbance by TE FE hold process ...

Page 20: ... 24 DVD P W BOARD OPERATION SIGNAL B Circuit block of Anti Defect 1 1 1 3 3 6 Start up program A Disc type Identification a In the case of DVD Dual Disc b In the case of DVD Single Disc ...

Page 21: ... case of CD Disc Spindle kick SPD FG 6 FG 1 revolution Tm 300ms B Disc diameter identification SPDO FG 6 FG 1 revolution Tm 155 ms SPDO FG 6 FG 1 revolution Tm 155 ms a In the case of 12cm Disc b In the case of 8cm Disc c In the case of NO Disc ...

Page 22: ... 26 DVD P W BOARD OPERATION SIGNAL 7 Adjustment Auto Adjustment A SGC Signal Gain Control Adjustment B Tracking Balance Adjustment Vref Zoom RF FDO TDO TE TE RF ...

Page 23: ... 27 DVD P W BOARD OPERATION SIGNAL C Focus and Tracking Gain Adjustment Zoom RF FDO FE SPD FE FDO RF SPD a Focus gain Adjustment b Tracking Gain Adjustment Zoom RF FDO TDO TE TE TDO RF FDO ...

Page 24: ...t Vref compensation Kick Spindle pk0 Th0 FG servo 500 rpm CD Mode DVD Mode Fofst Adj Fcs Aji data pk0 Fofst Adj Fcs Adj data pk1 pk2 one rev not yet done data Tm Rising Time Tm Th1 Tm Th2 Disc diameter identification NO NO pk2 pk1 3 pk0 pk1 YES NO CD Mode YES YES NO YES Th1 246 ms Th Time threshold pk0 S Peak value pk1 pk2 1st 2nd S Peak value YES Th0 Level threshold Disc Type identification NO YE...

Page 25: ...cus In CLV On 1 NG Dual OK Single CD Tbal adj Mirr adj Tbal adj Mirr adj Trk On Fgain adj Tgain adj Fgain adj Tgain adj Sled On Sled On Sld Off Trk Off Trk On RF adj RF adj Fcs jump Fbal adj Eccentricity measure L1 L0 Next Layer 1st layer DVD Mode Waiting Error check D type D type Fbal adj Trk shift EQ sdj Trk shift EQ adj Sled outer TOC read 2 DVD Single Dual NG CD Ok Trk shift EQ adj Fcs Jump ...

Page 26: ...SURR_R CENTER WOOFER FRONT_L FRONT_R SPDIF S RGB COMP NTSC PAL VCTRL VDAC1 4 5 1ch model use SOCKET section FRONT PWB STANDBY MATCH STANDBY MATCH STANDBY NOT MATCH POWER SUPPLY from POWER SUPPLY SOCKET board SCART PWB NT PAL SW VIDEO SW Q6707 Q6707 Q6708 5 1ch OUTPUT DS601 SENSOR COMPOSITE AUDIO L R S VIDEO SPDIF Y CB CR Q6602 Q6601 MUTE COMPONET 5 1ch MODEL A D INPUT SCART OUTPUT XE UK MODEL SW V...

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