ONKYO® SERVICE MANUAL
Contents
1. d a NN MEN NN NN NN ms QD mm ds M M 32018 WSINVHO3W 15 D IE P 4 1 203 27 RA x 4 a Q gt e 3OScI Lad 8 AN TA 1040 8 i T sb ci T Q __ 1 _ AS 2 222022 gt C 25 x 2 S 2 AL 5 265 i NND 1061 z 3 BOVIIOA 9 9110 4 INVISNOO OSSADOAdOHIDIN 3 2010 wading 09 ODSUN 9010 9 PL 6 5 9 iv Wr 0505 3208 1025 20121 ONDIOViLL SD203 Q E avg HOLON 15 1102 TL OgS OVOOSCaXO E HOSSHOOd IVNDIS 1010 SNOHdQV3H 1554 lt 533 20 16 EP PU LEE TU IE e 4 e m 7 ELLEN ADJUSTMENT PROCEDURES It is not necessary to perform the adjustment of optical pickup This confirmation should be made when replacing the optical pickup Focus Tracking Gain Adjustment 1 Connect the oscilloscope to test points RF and VC Osilloscope DC range The following is a simple A freque2. 731 Ref No OM3507 ONE YO SERVICE MANUAL COMPACT DISC PLAYER MODEL DX 7310 ase te 773520 8074 Black model SAFETY RELATED COMPONENT WARNING COMPONENTS IDENTIFIED BY MARK ON THE SCHEMATIC DIAGRAM AND IN THE PARTS LIST ARE CRITICAL FOR RISK OF FIRE AND ELECTRIC SHOCK REPLACE THESE COMPONENTS WITH ONKYO PARTS WHOSE PARTS NUMBERS APPEAR AS SHOWN IN THIS MANUAL MAKE LEAKAGE CURRENT OR RESISTANCE MEA SUREMENTS TO DETERMINE THAT EXPOSED PARTS ARE ACCEPTABLY INSULATED FROM THE SUPPLY CIRCUIT BEFORE RETURNING THE APPLIANCE TO THE CUSTOMER SPECIFICATIONS Compact Disc Player Model DX 7310 Signal readout system Optical non contact Reading rotation About 500 200 r p m constant linear velocity Linear velocity 1 2 1 4 m s Error correction system Cross Interleave Reed Solomon code D A converter bit PWM ACCUPULSE D A CONVERTER Sampling frequency 352 8 kHz Eight times oversampling Number of channels 2 stereo Frequency response 5 Hz 20 kHz Tota harmonic distortion 0 004 at Dynamic range 96 dB Signal to noise ratio 100 dB Channel separation 90 dB at kHz Wow and Flutter Below threshold of measurability Output level 2 volts r m s Headphone jack Optimum load impedance 8 to 200 ohms Power consumption 13 watts Power supply rating European and Australian models AC 230 50 Hz USA and Canadian models AC 120 V 60 Hz Wor
3. Note Since exact adjustment cannot be performed remem ber the positions of the controls before performing the adjustment if the positions after the simple adjust ment are only a little different return the controls to the original position oscilloscope Procedure DC range main board TP FEO E gt TN TP TEO O 7 Keep the set horizontal if the set is not horizontal this adjustment cannot be performed due to the gravity against the 2 axis device 29 Insert disc YEDS 18 and press D PLAY button Connect oscilloscope to main amp board TP FEO gt 9 Adjust RV103 so that the waveform is as shown in the figure below focus gain adjustment VOLT DIV 100mV TIME DIV 2 mS e Incorrent Examples DC level changes more than on adjusted waveform tow focus gain TIME DIV 2mS VOLT DIV 100 high focus TIME DIV 2 5 VOLT DIV 100mv 7310 5 Connect oscilloscope to main board TP TEO 6 Adjust RV104 so that the waveform is as shown in VOLT OIV t V TIME DIV 2 5 d ov Incorrect Examples fundamental wave appears low tracking gain TIME DIV 2mS high tracking gain higher fundamental wave than for low gain VOLT DIV TIME DIV 2mS Adjustment Location main board 10 GND9 le IC10 18 7310 Cray 10 a P
4. jspindte motor servo control 45 loj pao 5 MDS Spindle motor servo cont 46 4 MNrsoupu 6 Lock H when GFS is the high tevet 47 Oo pao MNT2oupu 3 inc lp oloaan 8 Joccillation circuit output for analog EFM PLL 49 paoi MNTOoupt Oscillation circuit input for analog EFM PLL 2 farr ou for apenre when Ret 8 6436MHz Control output for aperture correction when L ch 10 TEST 1 Tes emina 3 ys jomedeminl 5 Cnarge pump output analog EFM PLL XTAI ld corr np 2 Ground terminal 33 8688 input Basie 1 sa ixro Crystal oscillation circuit output of 16 9344MHz M EU usc aee ind Clock input for variable pitch from VCO H when 33 8688MHz 18 FLO Filter output for master PLL 42336 MHz output 9 1 Filter input for master PLL sg 16 9344 MHz output 20 PCO Charge pump output of master PLL so Digital output contro input On at high level AVs flamggond 5 1 5 22 1 VCO control voltage input for master 6 Emphasis control output Active high 23 Anal
5. O Rch PWM output 7 1 l interface switching control 22 AVDD3 SV for analog section LRC Sampling rate clock of input data H L ch L R ch 21 AVDD2 5V for analog section 9 BCKI I Bitclockofinpurdata 20 L ch PWM output Di 1 19 Ground for analog section 0000 10 EM CN AMNES EIE 12 1 When FSELI FSEL2 and MCOML are the low leve 17 AVDDI SV foranalogsection 13 DEEM 1 De emphasis conwrol input 16 DVDD 5V for digital section JRSTN System reset L Reser 15 DVSS Ground fordigital section A3507 de rs DISASSEMBLING PROCEDURES l Tray ass y Remove the top cover Remove the holder T and the retainer M Turn the power switch to ON Press the OPEN CLOSE button to open the tray ass y Remove the chucking ass y Remove the stopper Press the tray stopper to the arrow mark direction and remove the tray ass y 7 M 2 CD mechanism ass y Remove the tray ass y Remove the four screws holding the mechanism and the holder M 314 pumM H ERI A UR vOv Z SS 88812289 11 88 111 t TIT 8043 9019 OL tote we 5 L 414 413334
6. O DA13 Bit clock of 68 bits slot 36 1 Track jump numbers count signal input 38 12 DAI2 LR clock of 68 bits slot _ DATO O Serial data output 10 SSP 39 pan 8 Serial data latch output to SSP Latch at wailing 4 o XUGFoupt T 0 Serial data transfer clock owtput 1o SSP Note 55 1 101 CXA1372Q M51943ASL System reset 74HCUO4P Hex inverters Vcc V C C 3 7310 CXA1372Q Servo Signal Processor o 9 22 4 04 35 2 EEK N 90vcc l 4 M lt a 5 3 E 14 41 ge 2 9 lt 8 occ gt p eli A o gt dii v gt AE row T erm 7 C43 gt 29 Je E T 3 xz 7 2217 8833 Zs 52 83 lt 9774 g gt 13 209 1353 TITO PIN NO DESCIRPION PIN SYMBOL VO DESCIRPION __ gt n Mid point voltage input terminal 2 23 XLT _ 1 Lach input terminal for microprocessor Connect the capacitor between FS3 and this pin 24 Serial data input terminal for microprocessor FGD when the high frequency gain focus servo 25 XRST
7. PRODUCT ADVARSEL USYNLIG LASERSTRALING NAR DEKSEL PNES OG SIKKERHEDSLAS BRYTES UNNGA EKSPONERING FOR STR LEN SN 29361581Y 25 1 E St 4 2 tox 2 4 fe Re 8 2 Ex tae 8 4 DU DX 7310 gt EXPLODED VIEW EG M TE 12 4 tn 91315945 SOV 5 ORLLOT TA auld 40 ASIA TVOLLTHO WODIV SLNS8NOdWOO THL ALON Asse uisrueqooWN 42 5061 4 A SSE 0 Dd YUAMS 1012925 IFRI A 1 8226 MSVN SS ISULOJSUEN J940d VI L7CS SdVN d s 19uuojsuer 1 226 54 SSe 1 9220 54 Asse euu Asse 220 4 Asse 110210 e dsiq T 226 SIT VN A Sse IMOM UN L CCCS SH V VN M RUUOJSUEIL Imod 6611 14 5 V d 19unojsuer 46611 14 V 30D HH2 SV V 910D 00 VHSC a V NOI LdIHOS3Q0 9S9UEATE L UO pIOA M ATUO A0 Z d 960000855 2 AT 8CS097HI Ln AVI CCSO9CHI AT LCSO9CHT on 1 925092 1 9 AT CS09CHT 9 in A 40660062 18860062 1061 A
8. I JReset input terminal Active low is dropped 26 0 Signal output to count the track numbers input terminal according command from the microprocessor FLB Input terminal for the low frequency boost of 29 MIRR Mirror comparator output terminal E EN focus servo 30 DFCT O Defect comparator output terminat FEO 0 drive output terminal 3ijASY asymmetry control input terminal 6 1 inversion input terminal of focus amplifier 32J EFM J comparator output terminal 7 SRCH Time constant terminal to make the focus search 33 FOK OK comparator output terminal TGU high frequency changeover input 35 CC2 I Defect bottom hold input terminal from terminal 3 CB Defect bottom hold capacitor connection terminal O Tracking drive ourputterminal 38 11 Mirror hold capacitor connection terminal Inversion input terminal of tracking amplifier 39 RFI I RF summing amplifier input terminal 135 1 No inversion input terminal of sled amplifier 40 RFO O RF summing amplifier output terminal O Sled drive output terminal 42 TZC Tracking zero cross comparator input terminal ASISL inversion input terminal of sled amplifier 43 TE 1 Trakinge
9. Tray gear Chucking plaic 2 6TTW 7B Sclf tapping screw Chucking yokc Magnet Damper Chucking P Sub chassis Spring Screw with washer KSM 2401 Pickup drive unit CD servo pc board ass y Main chassis 2 6TTW 16B Sclf tapping screw Drive gear Control cam REF NO 21 22 23 24 25 26 27 28 101 102 103 104 105 106 107 108 109 110 114 PART NO 24840064 25055369 24840066 24840067 24810022 24810025 24816008 24828006 24836014 24840068 24822015 24820024 24824003 24110011 24810023 24802014 24804012 82112003 DESCRIPTION Leafswitch NPLG 5P352 Plug Loading motor pc board Loading motor Middle your Loading 2 6B 2 5F Screw Sled shaft Insulator 2 X5 Special screw Plate S Spring Center ring 55 240 Optical pickup Wheel Chassis Motor gear ass y 2P 3FN head screw iad vw de 109 101 110 REMOVEMENT OF TRAY ASS Y Remove the top cover Turn the locked screw to the clockwise to release the lock of gear Refer fig 1 Pull out the tray ass y Remove the stopper Refer fig 2 Press the tray stopper to the arrow mark direction and remove the tray ass y Stopper Q Front Panel zi Tray stopper Clear Plate Stopper JE Tray Chassis fig a E DX 7310 MICROPROCESSOR CONNECTION DIAGRAM CXP50116 527 M
10. 1 x4 922 5 11 4157 1 19 Lo Afa i 4 C423 C 2 1e t wore M iis 8402 19 cut s 8402 mo 9 ALi ALE JE dta 52 x Dagr yr Nei xot 0303 PAL 2 4 Si 2 M o niat C432 C431 LEUR eu 0225 e o 21 cmo rm 5 MAIN CIRCUI 7310 22053 777 sam NOT PAUSE Be 06015 52234 2 its DW ot fon s Ref Sum 422256152 me T 5 2 N t 5 mE ME i ovd g nt oa ginem ES 2a IDIA S n E 3 7 123 CRE 64 1 E 65 ol uy i 4 nidi 15 5 4 1013 3 A 5 Bla E 5 1243 POWER TRANSFORMER MAIN CIRCUIT PC BOARD 20 PC BOARD LS Pu Dat e Riu tem mci came m ace A B C D E SCHEMATIC DIAGRAM 3 qoeA MM KR ee ie m U ec D g D Q t a Q o o b 9 o 1 b M H t N 5 8791 1 3 3 48419 127 5
11. PACKING VIEW REF NO PART NO 29110071 2910037 1Y 29091637 1AY 29091636 1 Y 282321 29052850Y Accessary bag ass y 2010244Y 2010200 24140278Y 3010054 29342102Y 29342103Y 29100097 1Y 25055040 QV CA C D NOTE lt gt 230 model only W World wide model only DESCRIPTION 50 X 60cm PP tape 650 X 500mm Styrene bag Pad R PadL Staple Master carton box Connection cable Connection cable for remote control RC 278C Remote control transmitter UM 3 Two batteries Instruction manual P Instruction manual lt W gt 350 X 250mm Styrene bag CV K 2 Conversion plug lt W gt 25 DX 7310 ONKYO CORPORATION Sales Planning amp Promotion Dept 2 1 Nisshin cho Neyagawa shi OSAKA 572 JAPAN Tel 0720 31 8111 Fax 0720 33 5222 ONKYO U S A CORPORATION 200 Williams Drive Ramsey N J 07446 U S A Tel 201 825 7950 Fax 201 825 8150 ONKYO DEUTSCHLAND GMBH ELECTRONICS Industriestrasse 18 20 82110 Germering GERMANY Tel 089 84 9320 Fax 089 84 93 226 ONKYO FRANCE Immeuble Le Diamant Domaine Technologique de Saclay 4 Rue Ren 91892 SACLAY FRANCE Tel 1 69 33 14 00 Fax 1 69 41 35 84 26 No 0M3507 505 Printed in Japan
12. TE 1 5055 5360 0 0 060805006090900008 1 1 LIT 2 11411 i 11110111 001110 05400 06999999 ii 2 AS b 4 1 A M Rem de GR dE d m mr Q102 CXP50116 546Q E it 41124241442 B 8 9 e n 191 8 8T 125GK 3 4 amp 1 53 323314 36 16 17 10 19 20 21 2 38 24 25 Q102 CXPS0116 546Q WATISA er 199155 or 15 270 em Tm TR PRINTED CIRCUIT BOARD PARTS LIST Main circuit PC Board NAAR 5222 1 CIRCUIT NO PART NO DESCRIPTION Semiconductors Q101 22240487A CXD2500BQ Q102 22240753 CXP50116 546Q Q103 22240018 51943 0104 221281 DTC114YS Q105 2213355 or 28A933S S or 2211455 2SA1015 GR Q106 2213090 DTAIL4YS Q107 24120038 GP1F32T MOD Q108 22240322 LB1639 Q301 22240726 5 5872 0401 404 22240191 NJM4S65D D 405 408 2214281 2SD2144S U Q901 222780055MIT 5 78 05 Q902 222780053 78L05 Q903 22278007SMIT 5 78 07 Q904 222780085 MSF78MO08L Q905 222790085MIT MSF79MO08L Q906 2211504 25 950 D101 104 223222 WG713A D106 223205 1
13. Tn 443 ttt d 4 4 SS AEN Na Mb MIA CND A 2 MANSIS Connect oscilloscope to mair 3 4 Adjust 103 so that the in the figure below focus ga e The time until music starts becomes longer for STOP gt DPLAY or automatic selection 4 PPtbutions pressed Normally takes about 2 seconds low low or high 6 6 4 4 t 8 5 0 ns ao 4 amp 3 disc continues to rotate 2 E UL MES for STOP gt DPLAY or ON 5440 NN automatic selection hed buttons pressed e Music does not stari and Photo 1 Disc table opens shortly low or high after STOP DPLAY A 1 2 0 3Vp p Sound 15 interrupted dur Incorrent Examples DC lev ing PLAY Or time count on adjusted waveform et display stops progress ing Morc porse during 2 axis device operation low focus gain as high focus gain uy 2 15 necessary in exactly rgin so even if it is Therefore do not es the pick up follow lative to mechanical en the 2 axis device gt the adjustment is at d dise when the 2 axis more susceptible to Ig Occurs more easily the symptoms below low or high The following ts a simple adjustment method Simple Adjustment
14. 55270 223163 155133 D105 224450562 MTZS 6B Zener D901 905 22380032 15 139 100 907 908 906 224452202 MTZ22B Zener 0909 224450512 MTZ5 1B Zener Coils X301 3010159 AT 38 169 CRYSTAL Capacitors C101 374721034 50 1037 TF C C103 374721524 ECQ B50V 152 TF C C104 374724734 50 4737 TF C 105 374721044 50 1041 TF C C332 334 374724744 50 4747 C C407 408 374721824 ECQ B50V 182 TF C C409 410 374721034 50 1037 TF C C413 414 374728214 50 821J TF C C415 416 374724724 50 472 TF C C427 428 374721034 50 1031 TF C C901 393344727 CE04W16V 4700M C Resistors R118 49163472407 4 7K 7 R NET R901 902 443622214 RS1WBJ 220 METAL OR CIRCUIT NO PART NO DESCRIPTION Switches Terminals 101 25050866 NSCT 37P661 or 25050977 NSCT 37P764 SOCKET P103 25050854 or NSCT 22P649 or 25050962 NSCT 22P749 SOCKET P104 25045330 NPJ 2PDBL184 JACK 401 25045397 NPJ 4PDWR222 PIN JACK P901b 25051111 NSCT 7P898 WIRE Display circuit PC Board NADIS 5223 1 CIRCUIT NO PART NO DESCRIPTION Semiconductors Q701 212109 8 125 FL TUBE Q702 24130010 HC 312 REMO SENS Switches Terminals 9701 2707 25035548 NPS 111 S510 SW 710 728 P1016 25050898 NSCT 37P693 SOCKET 25050943 NSCT 37P730 SOCKET 27190754AY HOLDER FL Headphone amplifier PC Board NAAF 5224 1 CIRCUIT NO PART NO DESCRIPTI
15. ON Semiconductor 0501 22240369 M5218AP Resistor R501 5104327Y N16RGM20KB20F VARIR Power switch PC Board NAAF 5225 1 M a as a ce ae CIRCUIT NO PART NO DESCRIPTION Terminal P551 25045441 YKB26 5801 JACK Power transformer PC Board NAPS 5226 1 CIRCUIT NO PART NO DESCRIPTION Terminals 25060092 1533 P901A 25051111 NSCT 7P898 WIRE HOL Voltage selector switch PC Board NAPS 5227 1 CIRCUIT NO PART NO DESCRIPTION Capacitor C951 3500065A DE7150FZ103P AC400V 125V IS C Switch S951 A 25035636 NPS 111 L590P P SW 23 DX 7310 Mechanism PC Board CIRCUIT NO PART NO DESCRIPTION IC101 24840089 CXA1372AQ IC E M 45 L luc Eid 5 IC102 22240551 LA6532M TI IC EYN 2 11103 22240101 546411 1 RV101 102 24840085 10K Trim resistor 001 e PS SW101 2480070 Leafswitch n 224 ge RTE 101 24840072 Connector CN102 24840071 Connector socket A mA mi TENE mS PE 4 ne ret v 5 0286 IL 1 ee 5 dm 3 1 5 5228 2513522 J97 Y 775852 5 471 4 s 2 4 PC BOARD POWER SWITCH PC BOARD NOTE THE COMPONENTS IDENTIFIED BY MARK A ARE CRITICAL FOR RISK OF FIRE AND ELECTRIC SHOCK REPLACE ONLY WITH 2 PART NUMBER SPECIFIED 2 24
16. RINTED CIRCUIT BOARD VIEW FROM BOTTOM SIDE E Eds BESTE 2 Lc te X E CE REN SEHE S a tir 1 nc ae 4 50 2 1 gt 14 a C904 Am neam m PAR T na nm CRY 551 i E 2 24527 N 8 2 4 LI 19 X301 as 2 MU PUT E 5 UN dis way ud TERN 84 S lt e 1 12 15 t 91014 ZIN SIS 7 121 15 19 y Gon aep co 5 AD aera J246 de lt 12 i i 5 Is 1S 45 ct 1 12 1245 8 2 10 gt t A 2 o 228 2044 F i I c ist 222835 TOT Res TT Q j in 1 2225 FI 2 2 17172 notik az 8 C402 1 Cicero 15 3 SERRATE 18 A438 Lei Bae prt 15 20 25 28 TE IX EM I og Fio foe c 19 1 8 eee 25 AS 1 43 1 J26 SET s 04 Let C 62 0 0 R40 61 end A 84 Gt 212 C ja
17. SLIEST 106d ST60EZ 1061 1HVd 334 1614 915 9 8 11 9155 301441 ggg LLe 397 100q Jomod qouy pa y de pug deo pug SO 3U 11014 919 30144 1 6 0448 4116 19409 doy Matos Surddei jros DH HOT SLLE 4915s Suiddei yros D4 d01 D LL 9195 Suiddei 3 oS Da d0Ul ALLE MaS Suiddei jjag 54 48 4 LLE Moros gg ALLLE 128 Sutddei J 28 gg ALLLE MIOS peau 04 49 46 susug V J9PIOH lt gt oued A oued wy d oued SISEQ aed SSE JOLT NOILdIH9S3a ATIOITTLTOT 28 080087558 85 880061858 LS AC6CSLlLC bs 8 AOPIVTEST 6r 8v A9 6vCSc18C AD B8PTSTI BT vt 10 0168 ty 8 44 68911212 Ip 8800578 8 t AV6LVV8ISC 16 801057788 02 601077058 61 001057158 81 080057558 LI 880051158 91 880061868 ST 900tr1C8 pI 05 006 8 AVS8C6061LC 9 ATOICCTLC ATETCTILT ATEOCCTILC KALTCOOT LE v 991618 2 AVOLLOTTLT I ON LHVYd 33H 1511 PARTS LIST REF NO 0 00 A b PART NO 24340060 24822014 24810020 24840061 24830003 24832004 24336013 24810024 24302012 24820023 24840062 24840075 24802013 24810021 24840063 DESCRIPTION Tray Stopper Gear cover
18. heck the laser diode terminals with the probe of a circuit tester or oscilloscope DX 73 PROTECTION OF EYES FROM LASER BEAM DURING SERVICING Laser Diode Properties e Material GaAlAs Wavelength 760 800nm WARNING Emission Duration continuous WHEN SERVICING DO NOT APPROACH THE LASER Laser output 0 5mW EXIT WITH THE EYE TOO CLOSELY IN CASE IT IS This output is the value measured at a distance NECESSARY TO CONFIRM LASER BEAM EMMISION about 1 8mm from the objective lens surface BE SURE TO OBSERVE FROM A DISTANCE OF MORE on the Optical Pick up Block THAN 30cm FROM THE SURFACE OF THE OBJECTIVE LENS ON THE OPTICAL PICK UP BLOCK LASER WARNING LABEL These labels are located on the mechanism This set employs a laser Therefore be sure to follow carefully the instructions below when servicing DANGER INVISIBLE LASER RADIATION A VARNING AND INTERLOCK FAILED OR DIRECT EXPOSURE LASERSTAALNING NAR DENNA DEL AR OPPNAD OCH SPARREN AR URKOPPLAD HAZARDOUS LASER AND eu i WHEN OPEN BETRAKTA EJ STR LEN bte DEFEAT NN ONNEMENT LASER 2 ITION aay D DANGEREUX Si VARO Mus L ECLENCHEMENT DE SECURITE AVATTAESSA JA SUOJALUKITUS OHITETTAESSA OLET LASERSATEILYLLE KATSO S TEESEEN ADVARSEL USYNLIG LASERSTRALING VED ABNING NAR SIKKERHEDSAF BRYDER ER UDE AF FUNKTION UNDGA UDS ETTELSE FOR STRALING CLASS 1 LASER
19. icroprocessor Qa 2 2 3 2 55 9 1 juj gt 32 jl 10 0 1 1 N a 5 Slofapatal Slo 206 0702 REMOTE CONTROL SENSOR 9 RI BUFFER IN OUT FL TUBE m Q103 RESET oh oh of of DWN MEM FR CLR SHT NEXT i 4 j Symbol D Connect to pickup block 4 Not used Open FL tube segment output 28 FL tube grid output 9 SCOR Synchronizing signal detection of sub code frame Not used Open ee 2 DS 4 2 42 9 1G S 21717 2 e 2 Reset input terminal Reset at the low level 3 4 35 41 AD input terminal Connect to the operation key Chip enable terminal 44 2 3 MERE 5 Serial data output of command to signal processor IC Serial data input of sub code Q from signal processor IC SOCK serial transfer clock of sub code Q to signal processor IC LK T Serial transfer latch to signal processor IC MUTE Muting ON OFF control output terminal ON at the high level 1 Tray open close control output 2 CLOSE Tray open close control output 3 Not used Open 4 Not used Open 5 Sense input from signal processor 6 sw 7 INSW Tray close operation completion signal 8 OUTSW Tray open operation completion signal I
20. ldwide model AC 120 V and AC 220V switchable 50 60 Hz Dimensions W x x D 455 120 x 308 mm 17 15 16 x 4 3 4 x 12 1 8 Weight 4 8 kg 10 6 155 Specifications and external appearance are subject to change without notice because of product improvements TABLE OF CONTENTS Specifications 1 Service procedures 2 Caution on replacement of optical pickup 2 Protection of eyes from laser beem during servicing gt 3 Laser warming labels 3 Exploded view s t 4 Parts list 5 Mechanism exploded view gt 6 Drive unit exploded view 7 Parts list 7 Microprocessor connection diagram 8 Microprocessor terminal description SERVICE PROCEDURES 1 Safety check out After correcting the original service problem perform the following safety check before releasing the set to the customer Connect the insulating resistance tester between the plug of power supply cord and chassis Specifications More than 10Mohm at 500V 2 Voltage Selector Back panel Worldwide models are equipped with a voltage selector to conform with local power supplies Be sure to set this switch to match the voltage of the power supply IC block diagram and description 10 13 in user s area before turning the power switch on Dissembling procedure 14 Voltage is changed by sliding the groove in the switch Schematic diagram mechanism block 15 with a screw driver to the right lef
21. morinputterminal o NN focus tracking when defect This terminal is flowed the current so that the NE S uU Window comparator input terminal for ATSC I7 focus search tarcking jump and sled kick height detection is decided 46jFZC Focos zero cross comparator input terminal I8 SSTOP inner switch selection input terminal 1 Focusemorinputtermina O This terminal is used when track jump Capacitor connection terminal for time constant when defect at the low level aa DEN microprocessor SM5872CN D A Converter MCOM LRCI BCKI DI Od y MDT FSEL1 11 MICROPROCESSOR INPUT VETUS INFINITY ZERO DETECTOR j amp DE EMPHASIS SELECTOR FILETR PROCESSING amp ATTENATION PROCESSING PWM DATA NOISE GENERATION SHARPER BLOCK amp PROCESSING BLOCK 17 LO AVSSI LON AVDD2 AVDD3 RON 552 RO VO Function I xto 10 Resonatorsection 28 xm Resonator section 00000000 2 jOrowdforrsomuorsysem 27 5V forresonatorsystem 1 5 5 26 JAVDD4 5V for analog section 4 0 clock of resonator section 945 25 PWM output 5 MUTEO infinity zero detector output 24 AVSS2 Ground for analog section 6 MUTE 1 jMwingonpt 23 RON
22. ncy response analyzer is necessary in Simple Adjustment order to perform this adjustment exactly However this gain has a margin so even if it is 22 ber the positions of the contr slightly off there is no problem Therefore do not adjustment if the position perform this adjustment ment are only a little differe the original position Note Since exact adjustment cann Focus tracking gain determines the pick up follow RF Servo pc board up vertical and horizontal relative to mechanical TPRP Q noise and mechanical shock when the 2 axis device rocequre 3 operate main board 2 Tum the power switch on However as these reciprocate the adjustment is at TP FEO O e 7 the point where both are satisfied 3 Load the test disc YEDS 18 on the tray and press the play button Ws 2 4 T 4 Confirm that the waveform on the oscilloscope is optimum eye D device operates increases pattern and optimum level as shown photo 1 2 When gain is lowered it is more susceptible to Optimum eye pattern means that shape lt gt can be clearl i yep mechanical shock and skipping occurs more easily Keep the set horizontal distinguished at the center of the waveform If the set is not horizon When gain adjustment is off the symptoms below cannot be performed due t the 2 axis device 2 Insert disc YEDS 18 and pi appear HET
23. nhibiting signal of digital output of signal processor NRSCO 1 NRSCI 2 Remote control signal input terminal SS Serial transfer clock of command to signal processor IC Un No 3 4 N IN a JR 3 5 J i DO D7 D 1 Ground terminal X AL System clock output terminal 5V System clock input terminal T5V Negative power supply terminal for FL tube Optical pickup control output terminal ON at the low level Not used Open Not used Open Not used Open 8 9 A lif zu DX 7310 REGISTER SYNC PROTECTOR 19 1 16 TIMING 9 63 T SUBCODE o PROCESSOR SOCK SUBCODE Q n CORRECTOR NOISE I8 TIMES OVERSAMPLING SHAPER FILTER x nerve 2 o 286 52620 9 4 5 3 nn 224002 Try 4 2 PRO ah le 42 Suum oerte XA IAN 21 13 S D 7310 10 DESCRIPTION svwsor 1 jrjfocsOkips 42 pos 8 JGFsoupu 2 Fsw Output filter changeover output for spindle motor 43 pao7 3 Spindle motor control output 44 2406 _ olpao output 4
24. og section power supply 5V amp 0 Write frame clock output 24 ee i inp id Mi Sub code detection output H when is delected SO 25 BIAS 1 Asymmetry circuit constant current input or SI 26 asyi 1 Asymmetry comparator voltage input _64 SBSO Serial output of sub code P W 2 Jasyo o Oulp 65 1 Clock input for read out 5050 28 ASYE i Asymmetry control circuit Das ii Sub Q 80 bits PCM peak and level data 16 bits 29 nc output 64 PSSL ee 67 sock 1 Clock input for read out 5050 Serial data at L and paraller data at H MUTE Mutingconwrol output Active H D A interface for 48 bits slot Word clock f 2Fs 69 SENS Sens output Output io the microprocessor 32 1 D A interface for 48 bits slot LR clock f Fs 70 System reset Reset at the tow level VDD Power supply terminal 5V 1 Serial data input ftom the microprocessor 34441 10 Data output terminals XLTA Latch input from microprocessor Ll Jess O Latch the serial data at the wailing 34 O Serial data of 48 bits siot n Powersupply weminal 35 DAIS jBitclockof48b sslot 34 ctok 1 Serial data transfer clock input from microprocessor 36 Serial data of 64 bits slot Sens input from 5 O 37
25. t Block diagram 6 Confirm that the switch has been moved all the way to Adjustment procedure 17 18 the right or left before turning the power switch on Printed circuit board view frm bottom side 19 20 Schematic diagram 121122 Hu oo Printed circuit board parts list 23 24 Packing view 25 220V 120 220V 120 at AC120V at AC220V CAUTION ON REPLACEMENT OF OPTICAL PICKUP The laser diode in the optical pickup block is so sensitive to static lectricity surge current and etc that the components are liable to be broken down or its reliability remarkably deteriorated PRECAUTIONS 1 Ground for the work desk Place a conductive sheet such as a sheet of copper with inpedance lower than 10M 1 on the work desk and place the set on the conducuve sheet so that the chassis 2 Grounding for the test equipment and tools Test equipments and toolings should be grounded in order that their ground level is the same the ground of the power source During repair carefulley take the following precautions The following precautions are included in the service parts 3 Grounding for the human body Be sure to put on a wrist strap for grounding whose other end is grounded Be particularly careful when the workers wear synthetic fiber clothes or air is dry 4 Select a soldering iron that permits no leakage and have the of the iron well grounded 5 Do not c
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