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Sony BU-K4BD43 Service Manual Download Page 78

78

HCD-M10

7-7. CD MECHANISM DECK-1 (CDM55A1-K4BD43)

Ref. No.

Part No.

Description

Remarks

Ref. No.

Part No.

Description

Remarks

505

504

507

509

510

511

512

506

502

503

508

501

515

514

517

M901

#8

BU-K4BD43

501

4-925-315-31 DAMPER

502

4-224-894-01 TRAY

503

1-674-336-12 LOADING BOARD

504

4-220-229-01 LEVER (SW)

505

4-220-239-01 SPRING, TORSION

506

4-220-233-01 CAM (CDM55)

507

4-220-238-01 GEAR (B)

508

4-227-598-01 SPACER (55)

509

4-221-816-01 BELT (CDM55)

510

4-220-234-01 PULLEY (LDG)

511

4-220-237-01 GEAR (A)

512

4-221-815-01 ROLLER

514

A-4735-082-A MAGNET ASSY

515

A-4735-081-A PULLEY (AT-55F) ASSY

517

4-985-672-01 SCREW (+PTPWHM2.6), FLOATING

M901

A-4735-337-A MOTOR (LD) ASSY

#8

7-685-533-19 SCREW +BTP 2.6X6 TYPE2 N-S

Summary of Contents for BU-K4BD43

Page 1: ...ifier section European model DIN power output Rated 10 10 watts 6 ohms at 1 kHz DIN Continuous RMS power output Reference 15 15 watts 6 ohms at 1 kHz 10 THD Music power output Reference 25 25 watts Other models DIN power output Rated 10 10 watts 6 ohms at 1 kHz DIN Continuous RMS power output Reference 15 15 watts 6 ohms at 1 kHz 10 THD Inputs ANALOG IN phono jacks voltage 250 mV impedance 47 kilo...

Page 2: ...s unbalanced Intermediate frequency 10 7 MHz AM tuner section Tuning range European model 531 1 602 kHz with the interval set at 9 kHz Other models 531 1 602 kHz with the interval set at 9 kHz 530 1 710 kHz with the interval set at 10 kHz Aerial AM loop aerial External aerial terminals Intermediate frequency 450 kHz General Power requirements European model 230 V AC 50 60 Hz Other models 220 240 V...

Page 3: ... in the MD deck or the MD is protected against erasure There is no time remaining on the MD continued Self diagnosis display This system has a Self diagnosis display function to let you know if there is a system malfunction The display shows a code made up of three letters and a message alternately to show you the problem To solve the problem refer to the following list If any problem persists con...

Page 4: ...ecording level after recording you pressed ENTER YES without actually changing the recording level so no change was made No Disc There is no disc in the MD deck OVER You have reached the end of the MD while pressing M during playing pause Step Full You tried to programme 26 or more tracks steps Push STOP You pressed PLAY MODE DIRECTION or PLAY MODE on the remote during play Rehearsal The MD is pla...

Page 5: ...59 6 17 PRINTED WIRING BOARD AMP BOARD POWER BOARD 60 6 18 SCHEMATIC DIAGRAM AMP BOARD 61 6 19 SCHEMATIC DIAGRAM POWER BOARD 62 6 20 IC PIN FUNCTION DESCRIPTION 63 7 EXPLODED VIEWS 72 8 ELECTRICAL PARTS LIST 80 TABLE OF CONTENTS SAFETY RELATED COMPONENT WARNING COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINEWITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS LIST ARE CRITICAL TO SAFE OPERATION R...

Page 6: ...OPTICAL PICK UP BLOCK OR BASE UNIT The laser diode in the optical pick up block may suffer electrostatic break down because of the potential difference generated by the charged electrostatic load etc on clothing and the human body During repair pay attention to electrostatic break down and also use the procedure in the printed matter which is included in the repair parts The flexible board is easi...

Page 7: ...for adjustments When performing adjustments use the specified values for adjustments 0 9 mW power Specified value 0 80 to 0 96 mW 7 0 mW power Specified value 6 8 to 7 2 mW Iop at 7 0mW Labeled on the optical pick up Iop value 10mA Unsatisfactory if displayed as NG XXXX NG XXXX are arbitrary numbers Unsatisfactory if displayed as T NG NG are both arbitrary numbers Laser power check 6 2 See page 33...

Page 8: ...n as follows GND Ground I 3V For measuring Iop Check the deterioration of the optical pick up laser Iop For measuring Iop Check the deterioration of the optical pick up laser TE TRK error signal Traverse adjustment VC Reference level for checking the signal RF RF signal Check jitter FE Focus error signal I 3V CN105 Iop TE VC GND FE RF I 3V Iop GND TE FE VC RF I 3V Iop GND TE FE VC RF 1 7 for MDM 7...

Page 9: ... the lens block by cotton swab Optical pick up Note 1 In cleaning the lens do not apply an excessive force As the optical pick up is vulnerable application of excessive force could damage the lens holder Note 2 In cleaning do not use a cleaner other than exclusive cleaning liquid KK 91 or isopropyl alcohol Note 3 Wipe the obujective lens spirally from center toward outside See Figure A FIGURE A ...

Page 10: ...32 34 MD insertion slot 5 MD NX 3 15 17 18 21 25 PHONES jack qk PLAY MODE DIRECTION qh 9 11 13 15 17 24 30 46 48 REC MODE qd 26 Remote sensor 6 REPEAT qg 10 16 SYNCHRO MODE qd 22 24 46 47 TAPE nN w 46 48 TUNER BAND ql 43 44 TUNING MODE qh 43 44 TUNING 8 44 VOLUME 0 BUTTON DESCRIPTIONS 1 power 1 8 20 30 43 44 50 52 Z PUSH OPEN CLOSE 7 46 m M 8 10 16 37 39 43 44 46 l L 8 10 11 13 16 18 26 31 33 38 4...

Page 11: ...7 18 21 25 26 31 39 41 46 48 53 GROUP wl 18 20 22 32 34 GROUP SKIP qk 18 22 32 34 MD z 0 21 25 28 MD NX wj 15 17 18 21 25 MENU NO qf 14 26 30 32 35 37 41 43 NAME EDIT SELECT 3 13 30 32 45 Number buttons w 10 13 16 31 44 PLAY MODE wg 9 11 13 15 17 30 REPEAT wh 10 16 SCROLL wk 14 19 32 33 SLEEP qh 49 TAPE nN 7 46 48 TUNER BAND 6 43 44 TUNING MODE ql 43 44 VOL wf BUTTON DESCRIPTIONS 1 power 1 8 20 30...

Page 12: ...oard mechanism deck MAIN board tuner AMP board POWER board MD mechanism deck MD DIGITAL board CD mechanism deck Top cover section Chassis section Cam CDM55 LOADING board Holder section Over write head BD board OP Sub section Loading motor assembly spindle motor assembly sled motor assembly Base unit BU K4BD43 CD board CD optical pick up block KSM 213DHAP Back panel ...

Page 13: ... Two screws case 3 TP2 2 Two screws case 3 TP2 3 Screw BVTP3X10 4 Case R 8 Case L 9Ground terminal 5 Two screws case 3 TP2 6 Two screws case 3 TP2 7 Screw BVTP 3X10 0 6 Back panel 1 Four screws BVTP3X10 2 Screw BVTP3X8 7 Two screws BVTT3X6 4 Screw BVTP3X10 8 Shield plate Micro Computer 3 Two screws BVTP3X10 9 Two screws BVTP3X10 0 Screw BVTT3X6 qs Front panel section Chassis section qa Wire flat t...

Page 14: ...N502 4 Wire flat type CN501 qs JACK board Front panel 8 Two solderings qa Ground plate HP 0 Mechanism deck Top cover 6 Connector mechanism deck 9 pins 4 Screw BVTP3X8 3 Screw BVTP3X8 8 Three screws BVTP3X8 Hook Crack 7 TC board 2 Wire flat type CN1002 1 Wire flat type CN1001 5 Remove a crack of TC board from a hook on mechanism deck by sliding TC board in the arrow Adirection 9 Screw BVTP3X8 Groun...

Page 15: ...Connector CN202 7 Wire flat type CN102 8 Wire flat type CN103 9 Connector CN101 qd MAIN board 1 Wire flat type CN903 6 Wire flat type CN105 5 7 Connector of power cord CN991 Ground lug 6 Connector CN992 5 Connector CN993 9 POWER board 4 AMP board 8 Two screws BVTT3X6 2 Two screws BVTP3X10 3 Board to board connector CN900 CN901 1 Screw BVTT3X6 ...

Page 16: ... Screw BTN1 7X3 1 Screw BVTT3X6 8 MD mechanism deck 2 Screw BVTT3X6 3 Shield MDM 6 Wire flat type CN703 5 Wire flat type CN702 Ground lug Ground lug 4 Screws BVTT3X6 3 Two screws BVTT3X6 2 Wire flat type CN703 1 Wire flat type CN702 7 MD DIGITAL board 5 Bracket MDM 6 Two screws BVTT3X6 ...

Page 17: ...17 HCD M10 3 10 HOLDER SECTION 3 9 CD MECHANISM DECK 4 CD mechanism deck 2 Two hooks 1 Screw BVTT3X6 3 1 Tension spring holder 5 Holder section 2 Hook 4 3 ...

Page 18: ... S102 1 Remove two solderings sled motor 2 Remove two solderings spindle motor 3 Remove two solderings loading motor 4 Remove three solderings switch 5 Two screws BP TRI 2X6 CZN 8 BD board 7 Connector CN104 6 Flexible board CN101 1 Screw P1 7X6 2 Over write head HR901 ...

Page 19: ...CZN 5 Base BU A 1 Screw BP TRI 2X6 CZN 6 Main shaft 2 Base BU D 4 Base BU A 8 Flexible board 9 OP sub section 7 7 Spindle motor assembly M101 5 Loading motor assembly M103 9 Sled motor assembly M102 1 Lever head 3 Torsion spring CLV 2 Belt loading 4 Two screws PWH1 7X3 5 6 Three tapping screws M1 7 8 Two screws PWH1 7X3 5 ...

Page 20: ...f the arrow C q Cam CDM55 3 Pull out the tray qa Two screws BTP2 6X6 qs LOADING board 5 Spacer 55 C A B B Release the lock 1 Pull out the tray in the direction of the arrow A While pushing this claw in the direction of the arrow B release the lock 2 Remove the base unit BU K4BD43 in the direction of the arrow A 3 Chassis F A 1 Floating screw PTPWHM2 6 ...

Page 21: ...p KSM 213DHAP 7 Two insulators 8 Two insulators 5 Two compression springs 6 Two compression springs qa CD board 4 Holder 213D 3 Two floating screws PTPWHM2 6 2 Two floating screws PTPWHM2 6 1 Wire flat type CN102 q Remove the four solderings from the bottom 9 Screw BTP2 6X6 ...

Page 22: ...r once a button is pressed it is no longer taken into account It is end at K21J 0V 0 2 To exit from this mode press three buttons in the same manner as step 1 or disconnect the power cord Note 1 About R As this unit has only a few buttons some operations require the use of remote commander RM SM100E provided with unit buttons These operations are indicated as R in this manual Example MENU NO R Pre...

Page 23: ... Tt Service Tt Develop Tt Note Do not use the test mode in the Develop group If used the unit may not operate normally If the Develop group is set accidentally press the MENU NO R button immediately to exit the Develop group 3 RELEASING THE TEST MODE Press the REPEAT button twice and 1 button to turn the power off the set goes to the standby mode 4 BASIC OPERATIONS OF THE TEST MODE All operations ...

Page 24: ...mmediately Display AUTO CHECK Err Display TEMP ADJUST LDPWRADJUST Iop Write Iop NV Save EF MO ADJUST EF CD ADJUST FBIAS ADJUST AG Set MO AG Set CD TEMP CHECK LDPWR CHECK EF MO CHECK EF CD CHECK FBIAS CHECK ScurveCHECK VERIFYMODE DETRK CHECK 0920 CHECK Iop Read Iop Compare ADJ CLEAR INFORMATION CPLAY 1MODE CREC 1MODE Details Automatic self diagnosis Error history display clear Temperature compensat...

Page 25: ...ed shows you the recording position addresses 2 Changing the parts to be recorded 1 When the ENTER YES R button is pressed during continuous recording the display changes as below When pressed another time the parts to be recorded can be changed MD goes off 2 When access completes the display changes to CREC 1 and MD lights up Note The numbers displayed shows you the recording position addresses 3...

Page 26: ...d a test disc MDW 74 GA 1 which can be recorded 3 If a disc is loaded at step 2 the check will start automatically 4 When XX CHECK is displayed the item corresponding to XX will be performed When 06 CHECK completes the disc loaded at step 2 will be ejected DISC IN will be displayed Load the check disc TDYS 1 5 When the disc is loaded in step 4 the check will automatically be resumed from 07 CHECK ...

Page 27: ... match for L CH and R CH turn the adjustment screw so that outputs match within 1 dB of peak L CH peak R CH peak screw position output level within 1 dB L CH peak R CH peak screw position within 1dB DECK SECTION 0 dB 0 775V 1 Demagnetize the record playback head with a head demagne tizer 2 Do not use a magnetized screwdriver for the adjustments 3 After the adjustments apply suitable locking compou...

Page 28: ...pe to TP TE and TP DVC 1 65V 2 Turn the power on 3 Load a disc YEDS 18 and playback the number five track 4 Press the u button Becomes the 1track jump mode 5 Confirm that the level B and A DC voltage on the oscilloscope waveform Specification level x 100 less than 22 TP RFAC TP DVC 1 65V CD BOARD oscilloscope VOLT DIV 200mV TIME DIV 500ns level 1 1 0 3Vp p CD BOARD Oscilloscope TP TE TP DVC 1 65V ...

Page 29: ... to TP XPCK with lead wire 2 Turn the power on 3 Put the disc YEDS 18 in to play the number five track Confirm that reading on frequency counter is 4 3218MHz Test Point Location CD BOARD SIDE B frequency counter CD BOARD TP XPCK TP DVC 1 65V TP TE IC101 IC103 TP XPCK TP RFAC ...

Page 30: ... the use of remote commander RM SM100E provided with unit buttons These operations are indicated as R in this manual Example MENU NO R Press the MENU NO button of the remote commander Note 2 Incorrect operations may be performed if the MD test mode is not entered properly In this case press the 1 button to turn the power off and retry to enter the MD test mode 1 PARTS REPLACEMENT AND ADJUSTMENT If...

Page 31: ...alue See page 36 9 Temperature compensation offset adjustment See page 36 10 Laser power adjustment See page 36 OP IC102 IC190 or IC195 replacement OP IC101 IC151 or IC195 replacement OP replacement Spindle motor replacement 6 4 Auto check See page 34 End 11 Iop NV save See page 37 12 Traverse adjustment See page 37 13 Focus bias adjustment See page 38 16 Auto gain control output level adjustment ...

Page 32: ... No 4 229 747 01 Laser power meter LPM 8001 Part No J 2501 046 A or MD Laser power meter 8010S Part No J 2501 145 A 1 Oscilloscope Measure after performing CAL of prove Digital voltmeter Thermometer Jig for checking BD board waveform Part No J 2501 196 A pick up flexible board laser tap 5 When observing several signals on the oscilloscope etc make sure that VC and ground do not connect inside the ...

Page 33: ...time the ENTER YES R button is pressed the display will be switched to L 0 7mW and L 6 2mW Nothing needs to be performed here Checking Location BD board see page 40 6 3 Iop Compare The current Iop value at laser power 7 mW output and reference Iop value set at shipment written in the nonvolatile memory are compared and the rate of increase decrease will be displayed in percentage Note Perform this...

Page 34: ...pick up 6 5 Other Checks All the following checks are performed by the Auto Check mode They therefore need not be performed in normal operation 6 6 Traverse Check 6 7 Focus Bias Check 6 8 C PLAY Check 6 9 Self Recording Playback Check 6 6 Traverse Check Connection Procedure 1 Connect an oscilloscope to CN105 pin 4 TE and CN105 pin 6 VC on the BD board 2 Load a disc any available on the market Refe...

Page 35: ...o display a Check that the C error is about 220 and ADER is below 2 9 Press the MENU NO R button then press the Z MD button and take out the test disc 6 8 C PLAY Check MO Error Rate Check Procedure 1 Load the test disc MDW 74 GA 1 2 Press the R or R button to display CPLAY 1MODE C34 3 Press the ENTER YES R button to display CPLAY1MID 4 The display changes to C AD _ _ 5 If the C error rate is below...

Page 36: ...dicates the Iop value after adjustment 4 To end press the MENU NO R button to display Iop Read C26 9 TEMPERATURE COMPENSATION OFFSET ADJUSTMENT Save the temperature data at that time in the non volatile memory as 25 C reference data Note 1 Usually do not perform this adjustment 2 Perform this adjustment in an ambient temperature of 22 C to 28 C Perform it immediately after the power is turned on w...

Page 37: ... to display EFB MO R Laser power READ power Focus servo ON tracking servo OFF spindle S servo ON 6 Press the R or R button so that the waveform of the oscilloscope becomes the specified value When the R or R button is pressed the of EFB changes and the waveform changes In this adjustment waveform varies at intervals of approx 2 Adjust the waveform so that the specified value is satisfied as much a...

Page 38: ...averse Waveform 18 Press the ENTER YES R button display EFB SAVE for a moment and save the adjustment results in the non volatile memory Next EF CD ADJUST C08 will be displayed 19 Press the Z MD button and take out the check disc Adjustment Location BD board see page 40 13 FOCUS BIAS ADJUSTMENT Procedure 1 Load the check disc MDW 74 GA 1 2 Press the R or R button to display CPLAY1 MODE C34 3 Press...

Page 39: ... the ENTER YES R button and display b Check that the C error is below 220 and ADER is below 2 8 Press the ENTER YES R button and display a Check that the C error is below 220 and ADER is below 2 9 Press the MENU NO R button then press the Z MD button and take out the disc Note If the C error and ADER are above other than the specified value at points a step 8 in the above or b step 7 in the above ...

Page 40: ...d checking Loacation Note It is useful to use the jig for checking the waveform Refer to Ser vicing Notes on page 8 D101 CN101 CN103 CN102 CN105 NOTE IC151 IC102 IC101 IC195 IC190 1 1 1 7 27 23 BD BOARD Side A BD BOARD Side B ...

Page 41: ...l produc tion tolerances Circled numbers refer to waveforms Signal path F FM J CD ANALOG c CD DIGITAL p PB MD k REC MD I DIGITAL IN OPTICAL d PB TAPE a REC TAPE Abbreviation HK Hong Kong model SP Singapore model KR Korea model AUS Australian model THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS In addition to this the necessary note is printed in each block Note The components...

Page 42: ...TAL SERVO 64 D OUT RFAC 50 28 RFDCO 15 26 RFAC 16 FE 18 TE 12 SW 17 FEI 29 RFDCI RFDC 43 FE 39 TE 41 SE 40 4 DATA 3 3V DATA 6 CLOK CLK 5 XLAT XLT 76 SQSO SQSO 7 SENS SENS 26 SSTP 2 XRST 9 STBY1 20 STBY2 69 XTSL MASTER CONTROL IC306 1 3 21 OPT SEL CD DATA 34 8 SCLK 77 SQCK SCLK 15 SCOR SCOR 71 XTAI 72 XTAO CD CLK 27 XLT 22 SQ DATA IN 32 SENS 23 SQ CLK 33 SCOR 19 XTSL CTRL1 1 2 3 LDON LDON 25 CD_XRS...

Page 43: ...UT I2C CLK I2C DATA I2C CLK R CH MD L 29 I2C BUSY I2C BUSY 23 53 LIMIT IN OUT SW PWON MUTE SLICER SEL RESET LOCK LIMIT IN OUT PLAY REC PLAY SW REC SW XBCKI LRCKI 11 9 8 4 1 2 3 48 47 46 40 33 38 37 36 32 35 34 26 28 18 17 16 20 12 30 29 5 6 7 10 Q101 LASER ON SWITCH LD PD AMP I V AMP I V AMP FOCUS ERROR AMP TRACKING ERROR AMP RF AMP B P F PEAK BOTTOM 6 8 92 91 88 89 86 85 81 80 83 13 67 65 66 75 7...

Page 44: ...01 REC BIAS ERASE HEAD ERASE BIAS 5 24 L IN A IN L 19 A B SW REC IN L TAPE REC 24 21 15 PB L 20 4 44 REC PB PASS REC MUTE 48 12V Q1006 1007 5V Q1013 P R REC PB HEAD X IC1001 PB AMP REC AMP ALC 73 D902 D901 B SWITCH Q911 912 AMP PER TC 12V M 10V CD 10V D651 653 CD 5V D929 CD 10V BUP 3 3V SYSCON B D 3 3V A 3 3V A 7V CD 7V T900 MAIN TRANSFORMER T901 SUB TRANSFORMER D 57V REG IC905 3 1 4V REG IC907 3 ...

Page 45: ... S809 813 S817 823 DISC TRAY OPEN DETECT DISC TRAY CLOSE DETECT DISC TRAY OPEN CLOSE S902 S901 FL801 LIQUID CRYSTAL DISPLAY UNIT SDA SCL CS VDD 5V BACK UP Q809 D 5 7V D815 816 WHITE MODEL D818 820 BLACK SILVER MODEL BACK LIGHT IC603 LOADING MOTOR DRIVER RIN FIN OUT1 OUT2 SIRCS POWER KEY VOL_A VOL_B KEY2 KEY1 89 FUNCTION KEY S825 832 KEY0 OPEN SW IN SW LCD DATA LCD SCK LCD CS 77 RS LCD RS SWITCH Q8...

Page 46: ...41 for Circuit Boards Location IC101 IC103 IC702 A MAIN BOARD Page 53 TP DVC1 65V TP RFAC TP XPCK S101 LIMIT IN TP TE 40 21 20 214 41 60 61 80 13 13 13 13 Ref No Location D101 C 1 IC101 C 6 IC103 C 5 IC702 B 5 Q101 C 5 Q102 B 5 Q103 C 1 Semiconductor Location ...

Page 47: ...80p 0 1 7 5k 680p 7 5k 680p 7 5k BA5982FM 130k 100k 47 16V 0 1 150k 10k 0 1 100k 22k 22k 0 022 7 5k 7 5k 0 022 0 1 0 1 100 6 3V 10 12 2SB710 1000p 100k 0 1 47 16V 0 1 470p 15k 47 16V 0 1 KRA102S 33p 120k 120k 0 1 120k 160k 100k 0 1 47 16V 47 16V CXA2581N 470p 0 1 100k 3300p 1k 15k 3300p 18k 18k 1 1 16P CXD3068Q 47 16V 2SD1664 220 33 8MHz SLED MOTOR MOTOR CLK DATA SENS XRST XLT LDON SCOR GND 5V MGN...

Page 48: ...D DIGITAL BOARD Page 54 17 12 13 15 20 24 25 30 35 36 37 40 45 48 1 5 10 Ref No Location D181 A 1 D183 A 1 IC101 D 1 IC102 C 1 IC141 B 3 IC151 B 2 IC153 B 1 Semiconductor Location SIDE B Ref No Location IC181 A 2 IC190 A 3 IC195 A 3 Q121 C 1 Q122 C 1 Q181 A 1 Q182 A 1 Ref No Location D101 D 3 Q101 C 3 Q131 B 3 Q132 C 3 Q133 C 3 Q134 B 3 Semiconductor Location SIDE A ...

Page 49: ...49 49 HCD M10 6 6 SCHEMATIC DIAGRAM BD BOARD 1 2 See page 41 for Waveforms See page 63 for IC Pin Function Description See page 70 for IC Block Diagrams 0 0 0 0 0 1 2 3 ...

Page 50: ...HCD M10 50 50 6 7 SCHEMATIC DIAGRAM BD BOARD 2 2 See page 41 for Waveforms See page 64 for IC Pin Function Description 153 IC153 MSM51V4400E 70FS K C D 702 Page 55 Page 55 MD MD 703 4 ...

Page 51: ...A GND H P L H P R H P MUTE AEP UK EXCEPT AEP UK RDS DATA RDS INT H P GND PODWN MUTE 12CCLK 12CDATA BUP 3 3V D 3 3V AMP POWER ON AMP MUTE B 5V BUS1 BUS2 BUS3 BUS3 VSS D 5 7V PWM3 PWM2 PWM1 SCOR XLT XRST DATA SENS LDON CLK SCLK SDATA CTRL IN SW OUT SW RIN FIN CE DIN CL DOUT TUNED PLAY REC PB SIRCS KEY1 KEY2 POWER KEY LCD RS TUNER LED CD LED MD LED TC LED LCD CS LCD SCK LCD DATA CAPM CNT SOL CNT SHUT...

Page 52: ...5P 100 10V 33k 33k 1k 47k 47k 11ES2 TA5 11ES2 TA5 11ES2 TA5 FFC 1A 23P JW MA8062 L TX 330 6 3V 0 0 390 100 2SC3624 2SC3624 100 16V 100 16V 100 16V 2SC2603 1k 10k 2SC2603 11ES2 TA5 0 100 10V 100 16V 22P JW 10 50V 10 50V 470 BA6956AN 00BA6956AN 5P 47k 47k 33k 33k 10p 10p M4565M 2 2 50V 2SC2603 10000p 1k 1k 100 16V 10k 100 16V 1k 33p 33p 2 2M 1000p 0 1 JW 560p 4 332MHz BU1924 TORX178B XA BX VOL DATA ...

Page 53: ...624 C614 C372 JW285 JW173 D653 C112 JW175 JW176 JW178 JW177 JW144 C661 JW143 JW145 JW133 JW129 JW131 JW132 JW130 JW124 JW168 CN103 JW205 JW152 JW109 JW194 JW153 JW283 CN102 CN500 JW219 JW281 JW230 JW221 JW257 JW160 JW282 X801 X802 JW267 JW258 JW259 JW166 C105 C104 JW255 JW260 JW237 JW277 JW245 JW243 JW244 JW187 R121 CN202 C603 E E C650 C605 C651 C652 C607 JW264 JW236 C606 JW265 JW284 JW238 JW228 J...

Page 54: ...s Location IC701 IC871 IC861 IC201 IC211 B MAIN BOARD Page 53 D BD BOARD Page 48 C BD BOARD Page 48 E MAIN BOARD Page 53 Ref No Location D211 A 3 IC201 B 1 IC211 B 2 IC701 D 2 IC861 D 5 IC871 D 5 Semiconductor Location Ref No Location Q201 D 7 Q202 C 7 Q211 A 2 Q861 D 5 Q871 D 3 Q872 C 3 ...

Page 55: ...HEMATIC DIAGRAM MD DIGITAL BOARD See page 41 for Waveforms See page 68 for IC Pin Function Description See page 71 for IC Block Diagrams 10K 1 16W 10K 1 16W 07 E MAIN 102 Page 52 B MAIN 2 2 2 2 101 Page 52 Page 50 Page 50 1 ...

Page 56: ...3 R1001 R1039 R1002 R1019 R1004 R1023 R1005 R1043 R1022 R1045 R1009 C1029 R1007 C1007 C1008 R1006 C1042 R1015 R1081 R1082 Q1013 JW1015 RV1004 RV1003 CN1001 JW1021 JW1002 Q1006 JW1020 JW1014 JW1011 C1028 JW1009 JW1005 JW1010 JW1023 JW1004 C1027 JW1025 CN1002 L1001 C1031 C1036 C1037 JW1024 C1011 C1001 C1010 C1003 C1033 Q1011 Q1009 JW1007 JW1008 JW1012 JW1026 RV1005 JW1006 JW1030 C1009 C1045 L1002 C1...

Page 57: ...068N 0 1 0 0033 JW 220 16V 4 7 50V JW 22mH 100p 0 0 10 63V 10 63V 22mH 100p 0 10k 0 01 47 47 25V 0 0047 0 0068 0 001 0 001 22k 22k 0 0068 10 100 25V 10k 2 2k 2SC2001TP LK 4 7k 4 7k 4 7k 47k 22k 10k 47k 1SS355T 1SS355T 9P UN2212 4 7k 2SB1116 22k UN2212 22k 2SB1116 2 2k 17P 10k 4 7 50V 1k 10k 1k 1k 4 7 50V 1 5k 1 5k 1k 0 1 0 0033 10k 100 68k 1k 1000p 1k 1000p 68 22k 22k 10 50V 10 50V 100 16V 1SS355T...

Page 58: ...BLACK SILVER MODEL S833 IC801 S810 1 2 3 TUNING S811 S812 S813 D814 D805 S818 S822 S823 S817 S820 S821 D809 D807 D806 D808 D820 D819 D818 BL AMBER BOARD 11 13 1 683 065 BL WHITE BOARD 11 13 1 683 064 11 13 1 683 062 PANEL BOARD C850 C851 C853 C852 EP6 R856 R855 R854 R853 R852 R851 J301 PHONES REPEAT PLAY MODE DIRECTION STEREO MONO TUNING MODE SYNCHRO MODE REC MODE ENTER START MD TAPE TAPE S825 S82...

Page 59: ...A AMBER SEL5923A AMBER SEL5923A AMBER SEL5923A AMBER SEL5923A AMBER UN2211 TX 100 UN2211 TX 100 UN2211 TX 100 UN2211 TX 100 UN2211 TX 100 UN2211 TX 100 330 330 330 SEL5223S RED UN2211 TX 100 330 330 SELS6B14C TP5 SELS6B14C TP5 SELS6B14C TP5 1 5k SEL5923A AMBER NJL64H400A 100 1000p NSSW450 BRS TVR NSSW450 BRS TVR 100 100 220 220 220 JR JR JR 100 10k VOL VOL TAPE MD CD BAND TAPE MD CD BAND VOL VOL D...

Page 60: ...JW918 C961 C963 THP901 IC901 C902 CHASSIS 2 3 4 5 6 7 8 9 10 11 12 A 1 B C D E F G H CN900 CN993 Q991 E C903 C993 C995 C994 D994 C996 1 15 1 15 C904 D998 D997 C918 D991 R992 C992 D992 D993 R993 R995 JW997 JW995 C919 JW990 JW994 JW996 JW993 R994 EP4 R901 JW991 C997 JW992 R991 C991 RY991 D901 D902 T992 LINE FILTER C905 C901 D996 D995 IC991 CN991 1 3 1 3 1 3 1 3 1 3 JW902 CN992 JW989 LP2 LP1 POWER BO...

Page 61: ...5V TA7812S 10 50V 100 25V 10 50V 100 16V 10 50V TA7812S 100 16V 10 50V TA78057S TA7805S 100 16V 10 50V 2P 0 22 0 22 10 1 2 0 22 0 22 10 1 2 2 2 0 1 0 1 R914 R924 10 10 R915 10 R925 10 0 1 0 1 2 2 0 1 0 1 0 1 0 1 22k 220p 220p 47 25V 0 01 HZS12C1LTD UN4211 UN4211 0 01 0 001 1000 25V 22k JW FFC 1A 23P B TO B 3A 15P 10k 2 2 2 2 4 7 50V 22k 22k 0 01 TA7807S LA4663 0 22 50V 0 22 50V SPEAKER CAUTION The...

Page 62: ... 11ES2 TA2B 100 16V 11ES2 TA2B 470 10V 3300 16V 22000 16V D3SBA20 0 1 0 1 D3SBA20 4700 25V 0 15 1 2W 0 01 B TO B 3A 15P LINE FILTER 0 01 250V 0 01 250V 0 01 250V BA05T 2SC2603TP C2603TP EF 2P 4P T0 5A 250V NEUTRAL LIVE NEUTRAL NEUTRAL LIVE LIVE FOR 9V FOR 9V FOR 15V FOR 15V FOR 9V FOR 9V FOR 15V FOR 15V AC DET POWER ON POWER GND M GND AMP PWR SUB 5 6V SUB GND 15V PWR M H GND PRE 9V 7V GND CDM GND ...

Page 63: ...Center frequency setting pin for the internal circuit EQ Center frequency setting pin for the internal circuit BPF3T 3V power supply Center frequency setting pin for the internal circuit BPF22 Tracking error signal output to the CXD2662R External capacitor connection pin for the sled error signal LPF Sled error signal output to the CXD2662R FM signal output of ADIP ADIP signal comparator input ADF...

Page 64: ... Almost all H is output Digital In U bit CD format or MD format subcode Q sync SCOR output to the system control Laser power switching input from the system control H Recording L Playback Interrupt status output to the system control Recording data output enable input from the system control System clock input 512Fs 22 5792 MHz System clock output 512Fs 22 5792 MHz Not used System clock frequency ...

Page 65: ... input from the CXA2523AR Monitor output of the A D converter input signal Not used 3V power supply Analog A D converter operational range upper limit voltage input Fixed at H A D converter operational range lower limit voltage input Fixed at L Ground Analog Sled error signal input from the CXA2523AR Tracking error signal input from the CXA2523AR Connected to 3V power supply Error signal input for...

Page 66: ...l output H REV L FWD L STOP Not used ground Connected ground Sub clock input 32 768kHz Sub clock output 32 768kHz System reset signal input Main system clock output 16MHz Ground Main system clock input 16MHz Power supply 5V Not used connected to Vcc RDS interrupt signal input CD Q data request signal input MD P DOWN control signal output Optical select signal output CD latch signal output CD sense...

Page 67: ... used Not used Power supply 5V Not used Ground Not used FM ON OFF signal output H ON L OFF Tuner power ON OFF signal output H ON L OFF TUNED detect signal input Tuner data signal input Tuner clock output Tuner data signal output Tuner chip enable output Reset signal input Power key detect signal input PC power detect signal input for PC LINK LCD back light LED control signal output LCD reset signa...

Page 68: ... Main clock output 10MHz Ground Main clock input 10MHz Power supply Fixed at H Pull up Digital in sync input Record system Power down detection input L Power down ADIP MO sync or sub code Q PIT sync input from CXD1662R Playback system Not used Not used I2C cable connect check L Active Not used Interrupt status input from CXD2662R Not used Not used Not used I2C serial clock input output I2C serial ...

Page 69: ...OFF control signal output H Laser ON SENS signal input from CXD2662R Track jump signal input from CXD2662R Data input output to from EEP ROM Detection signal input from the reflect detection switch L Low reflection rate Power supply 3 3V Not used Ground Voltage control signal output to loading motor L High voltage H Low voltage Loading motor control signal H Out Loading motor control signal H In N...

Page 70: ...D CONVERTER OPAMP ANALOG SW PWM GENERATOR DIGITAL CLV SERVO BLOCK RW ROM RW ROM EQ ON OFF VOFST VOFST DVC VC VC VC RW ROM VC DVC 30 29 28 DVC VCC DVC 27 26 25 24 RW ROM EQ 23 22 21 20 19 RFAC VCA VCC DVC RW ROM VC RW ROM DVC 3 A B C D B C A A A B C D B C D D 1 2 APC AMP 5 6 7 8 9 4 RFAC SUMMING AMP RW ROM APC OFF Hi Z RW ROM H L VOFST VC RW ROM 10 11 GM GM 18 17 16 B D A C 13 14 15 12 EQ IN LD PD ...

Page 71: ...4 VSSD C 5 L3DATA 6 L3CLOCK 7 DATAI 8 BCKI 9 WSI 10 L3MODE 11 NC VDDD C RESET VDDA PLL 31 VSSA PLL 27 VDDA 26 VSSA 25 VSSA DAC 24 VREF 23 12 TC BCKO 29 30 CLKOUT 28 NC PREEM1 MUTE 44 RTCB 43 VDDD 42 PREEM0 41 NC 40 NC 37 WSO 36 DATAO 39 TEST2 38 NC 35 SELSTATIC 34 TEST1 13 SELCHAN 14 NC 15 SPDIF0 16 SPDIF1 17 VDDA DAC 18 VOUT L 19 SELCLK 20 SELSPDIF 21 LOCK 22 VOUT R L3 INTERFACE IEC 958 DECODER D...

Page 72: ...21 TUNER 1 7 685 646 71 SCREW BVTP 3X8 TYPE2 IT 3 2 7 685 647 91 SCREW BVTP 3X10 TYPE2 TT B 3 7 685 781 01 SCREW BVTP 3X6 S SECTION 7 EXPLODED VIEWS NOTE XX X mean standardized parts so they may have some differences from the original one Items marked are not stocked since they are seldom required for routine service Some delay should be anticipated when ordering these items The mechanical parts w...

Page 73: ...4 236 669 01 SPACER LCD 60 1 773 217 11 WIRE FLAT TYPE 25 CORE 61 A 4728 616 A PANEL BOARD COMPLETE AEP UK 61 A 4728 622 A PANEL BOARD COMPLETE EXCEPT AEP UK 62 1 683 060 21 JACK BOARD 63 4 985 672 31 SCREW PTPWH M2 6 FLOATING 64 4 231 954 01 SPRING LID MD TORSION 65 4 231 949 21 LID MD 66 4 236 665 01 SPRING LID REC LEAF 67 4 951 620 01 SCREW 2 6X8 BVTP 68 X 4954 559 5 PANEL ASSY S FRONT AEP UK S...

Page 74: ...W TC BLACK 104 4 236 676 01 SPRING TC TORSION COIL 105 4 236 673 01 CASE T WHITE 105 4 236 673 11 CASE T SILVER 105 4 236 673 21 CASE T BLACK 106 4 224 104 41 DAMPER 107 4 224 116 01 BRACKET PUSH 108 4 224 117 11 SPRING PUSH COMPRESSION 109 4 236 678 01 CATCHER PUSH 110 1 796 101 21 DECK MECH 111 A 4728 617 A TC BOARD COMPLETE AEP UK 111 A 4728 623 A TC BOARD COMPLETE EXCEPT AEP UK 112 1 773 051 1...

Page 75: ...NG 2104 CORD 0156 1 769 079 11 CORD POWER KR 0156 1 775 787 61 CORD POWER EXCEPT KR AUS 0156 1 696 845 11 CORD POWER AUS 157 A 4727 747 A POWER BOARD COMPLETE AEP UK 157 A 4728 620 A POWER BOARD COMPLETE EXCEPT AEP UK 158 1 792 830 11 WIRE FLAT TYPE 17 CORE 159 1 792 829 11 WIRE FLAT TYPE 27 CORE 160 A 4727 745 A MD DIGITAL BOARD COMPLETE 161 A 4727 748 A AMP BOARD COMPLETE AEP UK 161 A 4728 621 A...

Page 76: ...5 075 B HOLDER ASSY 305 X 4952 665 1 SPRING SHT ASSY LEAF 306 4 227 002 01 GEAR PULLEY 307 3 372 761 01 SCREW M1 7 TAPPING 308 4 227 025 01 BELT LOADING 309 A 468 063 8A LOCK HOLDER 310 4 229 533 02 SPRING STOPPER TORSION 311 4 231 118 01 SPRING HOLDER TENSION 312 A 4680 638 B RETAINER COMPLETE ASSY 313 4 226 995 01 SLIDER EJ 314 4 227 013 01 SPRING EJ TENSION 315 4 226 996 01 LIMITTER EJ 316 4 22...

Page 77: ...RACK COMPRESSION 359 1 678 514 11 PWB FLEXIBLE 0360 A 4672 541 A DEVICE MINIDISK KMS 260E Z NP 361 4 988 560 01 SCREW P 1 7X6 362 4 996 265 01 SHAFT MAIN 363 4 226 992 01 BASE SL 364 4 230 716 01 SPRING SPDL TORSION 365 4 227 004 01 GEAR LC 366 4 227 005 01 GEAR LD 367 4 226 990 04 BASE BU A 368 A 4726 344 A BD BOARD COMPLETE HR901 1 500 670 22 HEAD OVER LIGHT M101 A 4735 757 A MOTOR ASSY SPINDLE ...

Page 78: ... 1 674 336 12 LOADING BOARD 504 4 220 229 01 LEVER SW 505 4 220 239 01 SPRING TORSION 506 4 220 233 01 CAM CDM55 507 4 220 238 01 GEAR B 508 4 227 598 01 SPACER 55 509 4 221 816 01 BELT CDM55 510 4 220 234 01 PULLEY LDG 511 4 220 237 01 GEAR A 512 4 221 815 01 ROLLER 514 A 4735 082 A MAGNET ASSY 515 A 4735 081 A PULLEY AT 55F ASSY 517 4 985 672 01 SCREW PTPWHM2 6 FLOATING M901 A 4735 337 A MOTOR L...

Page 79: ...31 780 01 HOLDER 213D 553 4 229 004 01 SPRING COMPRESSION 554 A 4728 686 A CD BOARD COMPLETE 555 1 823 145 11 WIRE PARALLEL FFC 16 CORE 556 4 229 005 21 INSULATOR 557 4 985 672 01 SCREW PTPWHM2 6 FLOATING 0558 A 4735 357 A DEVICE OPTICAL KSM213DHAP Z NP 8 7 685 533 19 SCREW BTP 2 6X6 TYPE2 N S The components identified by mark 0 or dotted line with mark 0 are critical for safety Replace only with ...

Page 80: ...A78057S IC906 8 759 231 53 IC TA7805S COIL L911 1 422 009 13 COIL AIR CORE L912 1 422 009 13 COIL AIR CORE L921 1 422 009 13 COIL AIR CORE L922 1 422 009 13 COIL AIR CORE TRANSISTOR Q901 8 729 900 80 TRANSISTOR DTC114ES Q902 8 729 900 80 TRANSISTOR DTC114ES RESISTOR R902 1 249 433 11 CARBON 22K 5 1 4W R903 1 249 429 11 CARBON 10K 5 1 4W R911 1 249 433 11 CARBON 22K 5 1 4W R912 1 249 385 11 CARBON ...

Page 81: ...CERAMIC CHIP 100PF 5 50V C160 1 162 927 11 CERAMIC CHIP 100PF 5 50V C161 1 162 970 11 CERAMIC CHIP 0 01uF 10 25V C162 1 162 970 11 CERAMIC CHIP 0 01uF 10 25V C163 1 125 891 11 CERAMIC CHIP 0 47uF 10 10V C164 1 162 927 11 CERAMIC CHIP 100PF 5 50V C165 1 162 968 11 CERAMIC CHIP 0 0047uF 10 50V C166 1 125 891 11 CERAMIC CHIP 0 47uF 10 10V C167 1 164 245 11 CERAMIC CHIP 0 015uF 10 25V C169 1 164 156 1...

Page 82: ...216 819 11 METAL CHIP 680 5 1 16W R127 1 216 845 11 METAL CHIP 100K 5 1 16W R128 1 219 724 11 METAL CHIP 1 1 1 4W R129 1 216 298 00 METAL CHIP 2 2 5 1 10W R130 1 216 829 11 METAL CHIP 4 7K 5 1 16W R131 1 216 833 11 METAL CHIP 10K 5 1 16W R132 1 216 839 11 METAL CHIP 33K 5 1 16W R133 1 216 821 11 METAL CHIP 1K 5 1 16W R134 1 216 821 11 METAL CHIP 1K 5 1 16W R135 1 216 821 11 METAL CHIP 1K 5 1 16W R...

Page 83: ...6V C230 1 126 206 11 ELECT CHIP 100uF 20 6 3V C231 1 126 206 11 ELECT CHIP 100uF 20 6 3V C234 1 162 968 11 CERAMIC CHIP 0 0047uF 10 50V C235 1 162 968 11 CERAMIC CHIP 0 0047uF 10 50V C236 1 125 891 11 CERAMIC CHIP 0 47uF 10 10V C237 1 115 412 11 CERAMIC CHIP 680PF 5 25V C238 1 115 412 11 CERAMIC CHIP 680PF 5 25V C239 1 115 412 11 CERAMIC CHIP 680PF 5 25V C240 1 115 412 11 CERAMIC CHIP 680PF 5 25V ...

Page 84: ...CK BOARD CAPACITOR C850 1 127 888 21 CERAMIC 0 1uF 10 50V C851 1 127 888 21 CERAMIC 0 1uF 10 50V C853 1 162 294 31 CERAMIC 0 001uF 10 50V C854 1 162 294 31 CERAMIC 0 001uF 10 50V JACK J301 1 764 106 21 JACK PHONES RESISTOR R850 1 249 417 11 CARBON 1K 5 1 4W F R851 1 249 421 11 CARBON 2 2K 5 1 4W F R852 1 249 421 11 CARBON 2 2K 5 1 4W F R853 1 249 425 11 CARBON 4 7K 5 1 4W F R854 1 249 429 11 CARBO...

Page 85: ...50V C372 1 136 165 00 FILM 0 1uF 5 50V C373 1 164 004 11 CERAMIC CHIP 0 1uF 10 25V C374 1 163 009 11 CERAMIC CHIP 0 001uF 10 50V C460 1 164 004 11 CERAMIC CHIP 0 1uF 10 25V C600 1 104 665 11 ELECT 100uF 20 10V C601 1 164 004 11 CERAMIC CHIP 0 1uF 10 25V C602 1 164 004 11 CERAMIC CHIP 0 1uF 10 25V C603 1 104 665 11 ELECT 100uF 20 10V C605 1 126 924 11 ELECT 330uF 20 6 3V C606 1 126 924 11 ELECT 330...

Page 86: ...C114ES Q912 8 729 040 20 TRANSISTOR RT1P137L TP Q941 8 729 620 05 TRANSISTOR 2SC2603 EF RESISTOR R110 1 216 073 00 RES CHIP 10K 5 1 10W R111 1 216 073 00 RES CHIP 10K 5 1 10W R112 1 216 073 00 RES CHIP 10K 5 1 10W R113 1 216 073 00 RES CHIP 10K 5 1 10W R114 1 216 025 11 RES CHIP 100 5 1 10W R115 1 216 025 11 RES CHIP 100 5 1 10W R116 1 216 025 11 RES CHIP 100 5 1 10W R117 1 216 049 11 RES CHIP 1K ...

Page 87: ...53 1 216 049 11 RES CHIP 1K 5 1 10W R455 1 216 025 11 RES CHIP 100 5 1 10W R456 1 216 025 11 RES CHIP 100 5 1 10W R457 1 216 025 11 RES CHIP 100 5 1 10W R458 1 216 025 11 RES CHIP 100 5 1 10W R466 1 216 049 11 RES CHIP 1K 5 1 10W R467 1 216 025 11 RES CHIP 100 5 1 10W R468 1 216 049 11 RES CHIP 1K 5 1 10W R469 1 216 025 11 RES CHIP 100 5 1 10W R470 1 216 025 11 RES CHIP 100 5 1 10W R471 1 216 025 ...

Page 88: ...NNECTOR FFC FPC 17P DIODE D211 8 719 104 34 DIODE 1S2836 FERRITE BEADS FB217 1 469 116 21 FERRITE 0UH FB701 1 469 324 21 FERRITE 0UH FB702 1 469 324 21 FERRITE 0UH FB703 1 469 324 21 FERRITE 0UH FB704 1 216 864 11 METAL CHIP 0 5 1 16W IC IC201 8 759 675 78 IC UDA1360TS N1 118 IC211 8 759 675 77 IC UDA1350AH IC701 6 801 355 01 IC M30803MG A07FP IC861 8 759 481 02 IC M62016L IC871 8 759 598 69 IC BA...

Page 89: ...16 073 00 RES CHIP 10K 5 1 10W R810 1 216 081 00 METAL CHIP 22K 5 1 10W R831 1 216 073 00 RES CHIP 10K 5 1 10W R833 1 216 053 00 METAL CHIP 1 5K 5 1 10W R834 1 216 037 00 METAL CHIP 330 5 1 10W R836 1 216 025 11 RES CHIP 100 5 1 10W R837 1 216 025 11 RES CHIP 100 5 1 10W R838 1 216 025 11 RES CHIP 100 5 1 10W R839 1 216 025 11 RES CHIP 100 5 1 10W R840 1 216 025 11 RES CHIP 100 5 1 10W R841 1 216 ...

Page 90: ... CERAMIC CHIP 0 001uF 5 50V C1009 1 126 935 11 ELECT 470uF 20 16V C1010 1 126 933 11 ELECT 100uF 20 16V C1011 1 126 963 11 ELECT 4 7uF 20 50V C1012 1 126 963 11 ELECT 4 7uF 20 50V C1013 1 126 964 11 ELECT 10uF 20 50V C1014 1 126 964 11 ELECT 10uF 20 50V C1015 1 126 933 11 ELECT 100uF 20 16V C1027 1 137 381 11 MYLAR 0 0001uF 5 100V C1028 1 137 381 11 MYLAR 0 0001uF 5 100V C1029 1 163 009 11 CERAMIC...

Page 91: ...00 RES CHIP 47K 5 1 10W R1057 1 216 025 11 RES CHIP 100 5 1 10W R1058 1 216 025 11 RES CHIP 100 5 1 10W R1061 1 216 295 00 SHORT 0 R1065 1 216 081 00 METAL CHIP 22K 5 1 10W R1066 1 216 081 00 METAL CHIP 22K 5 1 10W R1070 1 216 049 11 RES CHIP 1K 5 1 10W R1071 1 216 049 11 RES CHIP 1K 5 1 10W R1081 1 216 049 11 RES CHIP 1K 5 1 10W R1082 1 216 049 11 RES CHIP 1K 5 1 10W VARIABLE RESISTOR RV1005 1 22...

Page 92: ...TORY Clicking the version allows you to jump to the revised page Also clicking the version at the upper right on the revised page allows you to jump to the next revised page Ver Date Description of Revision 1 0 2002 02 New ...

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