ONKYO@ SERVICE MANUAL COMPACT DISC
Contents
1. 1 Description Output terminal of APC amplifier Input terminal of APC amplifier Inversion input terminal for RF I V amplifier Connect to photo diode A C I Inversion input terminal for RF I V amplifier Connect to photo diode B D az 16 Inversion input terminal amplifier Connect to photo diode F Inversion input terminal for E I V amplifier Connect to photo diode E DC voltage output of Vcc V EE 2 Middle point voltage input terminal Monitor output terminal for I V amplifier E Gain adjustment terminal for I V amplifier E Tracking error amplifier output terminal The signal E F is output from this terminal I Bias adjustment terminal for non inversion side of focus error amplifier Focus error amplifier output terminal gt BIAS RF amplifier output terminal Inversion input terminal of RF amplifier Change over terminal for APC amplifier 11 11 gt D ON DX 703 DX 705 13725 Servo Signal Processor N HOlVMJYdWO2 MOONIM 448 os1v 35 VHd 0204 43151934 z z gt 4300230 104100 SS3HM 0Gv 43151934 42165 LAN NOI LYSN3dWOS JG Ha ONIMOVHL 4300330 10 DESCRIPTION DESCRIPTION Tracking error input terminal Peak setting input of phase correction of focus track Capacitor connection terminal2. L SCOR 5V XRST 5V 5V ADO AD3 AD4 ADS o m gt A 0 0108 63 2112 RESET e EM LR 6 R UTC FF 10 k DX 705 ONLY P CL 2 DISP X 0 DIMMER _ EIRASE FILE 2 2 USE PLAY UP 2 2 DOWN M51943ASL Rest IC ta LE 11 DX 703 DX 705 Pin No 1 Description Music file address signal Fluorescent indicator tube segment drive output terminals uorescent indicator tube grid drive output terminals nchronizing signal detection input terminal of sub code frame mbol 0 A3 1 9 1G 8G 5 5 XRST 33 34 15 ADO AD6 C G DATA SQSO to D In ID Reset input terminal Reset at the low level A D input terminal Connect to the operation key hip enable terminal Un Co ES Cn tA CA in Iin 4 I gt gt pe IN p gt 99 ON IR Jo jemah erial data output terminal bcode Q input terminal ubocde Q read clock input output terminal erial data transmission clock output terminal mmand execution output terminal uting ON OFF control output terminal at the high level ray open control output terminal Open at the low level ray close control output terminal Close at the low level olume control output olume control ou
3. 601071068 OZY 89097vvt8 61V bp005SZLZ 144 SPICOLCLZ A6PIELCLC EIV vCS061LC 1167 V OSLOOELT 6V ASSIIZILZ ASOSITILZ AE9SITILT ATISITLLT 9V ATZSIPILZ 0 AIZSIPLLZ EV AOZSIPILZ zv AHLZZOOLLZ ON L8 Vd 338 EOLXO 151 SLUVd 15 16 des pug AVECCSCIASC Asse od mama A ddns 02 54 2 02506 1 en des AVZZZSZISZ Asse peog od TeUTUU91 6197 4 2 615061 lt g gt Asse jaued 10024 10 161 Asse preog od euoudpea c 8Tyt dV VN 2 815061 n lt g gt Asse poued wos 3101061 Icy Asst poq od n Avidsiq 2 L 1 py SIO VN 15061 1 en UOSN DSL x 8 X 08909187 cov lt O M d gt Asse peog od urew vC 9Ltrb W V VN VZ 91S061HI mans Suiddei nes Og de4SLLe 88006968 lt q gt Asse preoq 102112 ure z 91 eb 3 V VN Z 91SO6THI In 19402 do 60898187 TyV D muuojsuen JOMOd ORELT LAN Wy ABLLOOEL S 3181d pronus SPEOSILZ BEY lt m gt musojsuen DARE LAN V ALLIDORE lt S gt 4 PNS vEEOSTIZ LEV lt g gt jeuuojsuen j Od d8Ell LdN V7 A9LLOOEC S NAL WSL SPZERZ qe Puuojsuen 4 1 14 Y ASLLOOEZ 106 NIL 90 AvLSVCEBC DEV 0 Arddns 1204 V OLI SC S JTY ALLSVCESC Ad p109 Addns amod V 671652 qouy AYLSPZERZ 091419345 Luvd 10 9
4. 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 conductive 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 15 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 tip of the iron well grounded 5 Do not check the laser diode terminals with the probe of a circuit tester or oscilloscope Care Should be taken with the optical pickup The optical pickup is sensitive to static electricity surge currents and other high electrical noise and because there is the possibility of damage to performance in the handling of the pickup the utmost care must be taken particularly with regard to static electricity 1 When checking the laser terminal avoid making connections using the probes of a tester or oscilloscope or an ordinary power supply 2 When replacing the optical pickup first short the LD terminals and remove the connector Also when attaching the new optical pickup
5. U701 5701 5712 5713 5715 5716 5719 5720 5731 5721 5730 0701 C701 PART NO 24130003 25035548 25035548 25035548 25035548 25035548 212109 353721019 27190754Y DESCRIPTION GP1U50XS Remote control sensor NPS 111 S510 Push switches NPS 111 S510 Push switches NPS 111 S510 Push switches NPS 111 S510 Push switches NPS 111 S510 Push switches 8 BT 125GK FL tube 100 F 6 3V Elect capacitor Holder FL 30 HEADPHONE AMPLIFIER PC BOARD NAAF 4418 1 2 CIRCUIT NO PART NO DESCRIPTION Q501 222654 NJM4556D IC C501 C502 354744709 47 F 16V Elect capacitor R501 5142005A N16RGM20KB30F Variable resistor 5104242 N16RGM20KB30F Variable resistor HEADPHONE TERMINAL PC BOARD NAAF 4419 1 2 CIRCUIT PART NO DESCRIPTION P551 25045139 HSJ 0540 01 010 Headphone jack POWER SUPPLY CIRCUIT PC BOARD NAPS 4420 1 2 CIRCUITNO PARTNO DESCRIPTION C95 3500065A DE7150FZ103PAC400V 125 15 capacitor 595 25035558 A NPS 111 S520P Power Switch TERMINAL PC BOARD NAPS 4421 1 2 CIRCUIT PART NO DESCRIPTION 2001191615 NSAS 16P0295 Socket VOLTAGE SELECTOR SWITCH PC BOARD NASW 4438 1 2 Worldwide model only CIRCUIT NO PART NO 5952 25065287 DESCRIPTION A NSS 22113P Slide switch NOTE DX 703 only Q DX 705 only lt P gt Except 120V model THE COMPONENTS IDENTIFIED BY MARK N ARE CRITICAL FOR RISK OF FIRE AND ELECTRIC SHOCK REPLACE ONLY WITH PART NUMBER SPECIFIED BLOCK DIAG
6. after attaching the connector unsolder the LD terminals Terminal LD Optical pickup DX 703 2 705 PROTECTION OF EYES FROM LASER BEAM DURING SERVICING Laser Diode Properties This set employs a laser Therefore be sure to follow carefully the instructions below when servicing WARNING WHEN SERVICING DO NOT APPROACH THE LASER EXIT WITH THE EYE TOO CLOSELY IN CASE IT IS NECESSARY TO CONFIRM LASER BEAM EMMISION BE SURE TO OBSERVE FROM A DISTANCE OF MORE THAN 30cm FROM THE SURFACE OF THE OBJECTIVE LENS ON THE OPTICAL PICK UP BLOCK LASER WARNING LABELS The label shown below are aff xed 1 Warning labeis These labels are located on the arm of mechanism and the back panel DANGER wwisiece LASER RADIATION WHEN OPEN AND INTERLOCK FAILED OR DEFEATED AVOID DIRECT EXPOSURE OR BEAM UTION HAZARDOUS Laser ELECTROMAGNETIC RADIATION WHEN OPEN AND INTERLOCK DEFEATED ENTION Ravonnement LASER ET ELECTROMAGNETIQUE DANGEREUX SI OUVERT AVEC L ECLENCHEMENT DE SECURITE ADVARSEL USYNLIG LASERSTRALING VEO ABNING NAR SIKKERHEDSAF BAYDER ER UDE AF FUNKTION UNDG UDS ETTELSE FOR STR LING VARO AVATTAESSA JA SUOJALUKITUS OHITETTAESSA OLET ALTTIINA NAKYMATTOMALLE LASERS TEILYLLE ALA KATSO S TEESEEN Danger label Except 120V m model VARNING Except 120V OSYNLIG LASERSTR LNING N R DENNA DEL model AR PPNAD SP RREN AR URKOPPLAD B
7. for time constant when defect This terminal is flowed the current so that the focus Window comparator input terminal for ATSC detec search tracking jump and sled kick height is decided Inner switch selection input terminal This terminal is used when a track jump The sled runaway prevention circuit operates at the low level Serial data transfer clock input from microprocessor Latch input from microprocessor 2 Serial data input from microprocessor o 0 I o o tion Focus zero cross comparator input terminal Focus error input terminal Capacitor connection terminal for time constant when detect Mid point voltage input terminal Connect the capacitor between pin 9 and this pin when the high frequency gain of focus servo is dropped Reset input terminal Active low Focus servo high frequency gain changeover input ter Signal output to count the track numbers This terminal outputs FZC and SSTOP to according command from microprocessor minal Input terminal for the low frequency boost of focus Focus drive output terminal Defect comparator output terminal Inversion input terminal of focus amplifier Auto asymmetry control input terminal Time constant terminal to make the focus search wave EFM
8. lt S gt 44 NM HLIM AINO JOVAN AOOHS JALI lt q gt Pros dins samog VJ APLIESZ Po ces JO TVOLLISO JAY Y qUO 2n Sv LEOTE 1064 a gt da 00A HAVN Ad GSIHILNAGI SLN3NOdNOD ALON 5 Ae dgouy VILSPZERZ 2100 862 8 054 01602 1067 lt g gt Kejd gouy AOLSHTEST EEV Kquo AOyz lt D gt S Asse WJI 10014 AO6901 LLZ uO Asse 13y521q 10014 68901 112 TEV Kquo AQEZ lt a gt 393905 6110401 5 8 02016200 68 M 28 H01 01069918 Kquo pou 4021 lt 0 gt NO HO even Bn N Suiddei Jos Og de d LLe OSODEFEES Ezy Ajuo JoA IS g EDO OGS SVEN 607 sev 449198 Bude Jos ag MLLE 89006 1158 IKA Kuo tapout yoeglg lt gy gt LLON mais SmddetrJoS D8 98 SJLLE 8800 8 IKA lt O M d gt ISSV TO PAYT 18909662 8V mars 08 001621 15 lt g gt NIJ W3S 12071 mars Og H9 S LL9 C 8909771768 61V lt d gt 19921 80966 8v d O N1 s2 POOSSZLZ 91 lt O M d gt UASVT PWET 81219662 28 JaoedS 971202212 YHONVA PWT 10809662 18 69161212 ely d WAS 19461 W86TI9E6Z 08Y J9DIOH HP T S TOM 82506112 S 401 ASISPZERT durusng 06400617 APISHTERT D pwed 9S9TZTLZ 5 1oo0d qouy VRIPCESC lt A gt pwd xoeg ABISIZIIZ Jomod qo
9. 0196 Y RC 196C Remote control transmitter lt DX 703 gt 24140221Y RC 221C Remote control transmitter lt DX 705 gt 29341705Y Instruction manual lt D gt 29341707Y Instruction manual lt C P W Q gt 3010054 UM 3 Two batteries 29100097 350 X 250 Styrene bag 29365019A Warranty card 29365024A Warranty card 29358002 Service station list lt N gt 29100107 Styrene bag for warranty card lt F gt 25055040 CV K 2 Conversion plug 13 NOTE DX 705 Hemote control unit Cord Battery lt BH gt Black model only lt S gt Silver model only lt D gt 120V model only lt P gt 230V model only lt W gt Worldwide model only lt Q gt 240V model only N U S A model only lt F gt French model only lt C gt Canadian model only CHASSIS EXPLODED VIEW 4 4 lt KOO N N 41 N N ur gt 77 21 A62 14 DX 705 31412945 LAVd HLIA ATNO dOV ddH HOOHS OND ANY Sula JO MSIH TVOLLDHO JAY N7 X4WVIN GSIHLENSGI SLN3NOdWOO JHL 3LON quo opour 0 2 lt 0 gt 3ptA DIO Asse wstueysow T SETE d2N lt M gt Asse preoq od UNMS 10122125 IFMA IFET AAS WN NOILdIH9S30 ATWO AQ z q ppow AQZU lt gt JoBAfS lt S gt ATUG xoepg g AT00008vC 8 S 761HT ON 1uVd Asse DIE0
10. 5MIT 222790155MIT 222780053 Transistors 2211503 or 2211504 221281 222 221281 2211455 2213090 2212524 2211705 or 2211706 Opto module 24120031 IC protectors 252112 Diodes 223163 or 223205 224450562 223191 22380032 22380045 223163 or 223205 224452202 224450512 X tal 3010159 Coil 233411K100 DESCRIPTION 15715 CKA 13725 LA6510 CXD2500AQ CXP50116 369Q LC3664NL 12 74HC164 M51943ASL LB1639 74 YM3433 8 5861 NJM4565D B MSF78M05L 79L05 5 78 151 M5F79M15L 781 05 25 950 25 950 DTC114YS STA341M L DTCI14YS 2SA1015 GR DTA114YS 2SK363 GR 2SD655 E or 2SD655 F TOTX178 Transmitter A ICP N15 lt P gt 155133 or 155270 MTZS 6B SD101 15 139 100 RL203 155133 or 155270 MTZ22B MTZ5 1B AT 38 169 NCH 1383 29 CIRCUIT NO C101 C105 C103 C137 C106 C109 C120 C110 111 112 141 C113 C124 114 116 C118 C144 C119 C122 C125 C130 C127 C128 C152 C129 C131 C136 C132 C133 C156 C134 C135 C139 C138 C155 C140 C143 C145 C146 C147 C151 C148 C149 C153 C154 C163 C165 C167 C169 C170 C175 C304 C306 C308 C310 C311 C312 C313 C314 C401 C402 C403 C406 C407 C408 C413 C414 C415 C416 C417 C418 C419 C420 C421 C422 C423 C424 PART NO Capacitors 354721019 374724724 354721019 354742219 374722234 374721044 374724734 374721034 374721044 354780479 374721044 354742219 354780109 354744709 374724744 374721034 354784799 354
11. 705 TABLE OF CONTENTS Specifications Ne I Service 2 Note on compact disc 2 Caution on replacement of optical 3 Protection of eyes from laser beam during servicing 4 Laser warning jabel e eene nnne 4 IC block diagrams and descriptions 5 Packing view ee 13 Chassis exploded VIeW esses 14 Parts list 703 et 15 DX 705 nennen 16 Mechanism exploded view 17 Mechanism parts 15t 444 ee eee hehe 18 Removement of disc tray 4 18 Adjustment PTDCeQGUTES ene nenne ee hr anara 20 Printed circuit board view Main circuit Headphone PCb pe 23 Display Power supply Terminal 35 Schematic diagram D X 705 ee 25 DX 703 eese heme 27 Printed circuit board parts List 29 Block 31 Trouble shooting gEUlde nenn 33 NOTE ON COMPACT DISC e Holding Compact Discs Hold Compact Discs by the edges so that you do not touch the surface of disc Remember that the side of the disc with the rainbow reflection is the side containing the audio information Do not attach tape or paper to the label side of the disc and always be careful not to leave fingerprints on the side that is played Storing Compact Discs Store Compact Discs in a location protected from direct sun
12. 764709 374723334 354721019 374722224 374721524 354721019 354721029 354784799 374721034 354721019 374721044 354744709 354721019 354742219 354762209 354721019 3000058 374722224 354721019 354742219 354721019 374722244 354721019 373301014 373302714 374722224 374722224 372122024 354742219 374723334 374722224 373302714 DESCRIPTION 100 4 F 6 3V Elect 4700pF 5 50V Plastic 100 F 6 3V Elect 220 F 16V Elect 0 022 F 5 50V Plastic 0 14 F35 50V Plastic 0 047 u F 5 50V Plastic 0 01 x F 5 S0V Plastic 0 1 u F 5 50V Plastic 4 7 u F 50V Elect 0 1 u F 5 50V Plastic 220 4 F 16V Elect 1 u F 50V Elect 47 u F 16V Elect 0 47 F 5 50V Plastic 0 01 u FF 5 50V Plastic 0 47 u F 50V Elect 47 u F 35V Elect 0 033 u FF 5 50 Plastic 100 F 6 3V Elect 2200pF 5 50V Plastic 1500pF 596 50V Plastic 100 u F 6 3V Elect 1000 u F 6 3V Elect 0 47 F 50V Elect 0 01 F 595 50V Plastic 100 4 F 6 3V Elect 0 1 u F 5 50V Plastic 47 F 16V Elect 100 F 6 3V Elect 220 F 16V Elect 22 u F 35V Elect 100 x F 6 3V Elect 1 F 5 5V Super 2200pF 5 50V Plastic 100 F 6 3V Elect 220 u F 16V Elect 100 F 6 3V Elect 0 22 u F 5 50V Plastic 100 F 6 3V Elect 100 5 125V PP 270pF 5 125V PP 2200pF 5 SOV Plastic 2200pF 5 50V Plastic 2000pF 5 50V Styrole 220 F 16V Elec
13. DX 703 DX 705 NO 3422 ONKYO SERVICE MANUAL COMPACT DISC PLAYER Biack and Silver models BHMD BHMDN BHMDC 120V AC 60Hz BHMP BHMPF MP MPF 230 AC 50Hz BHMW 120 220V AC 50 60Hz 240V AC SOHz SAFETY RELATED COMPONENT WARNING SPECIFICATIONS COMPONENTS IDENTIFIED BY MARK A ON THE Signal readout system Optical non contact SCHEMATIC DIAGRAM AND IN THE PARTS LIST ARE Reading rotation About 500 200 r p m CRITICAL FOR RISK OF FIRE ANDELECTRIC SHOCK constant linear velocity REPLACE THESE COMPONENTS WITH ONKYO PARTS Linear velocity 1 2 1 4m s WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS Error correction system Cross interleave readsolomon code MANUAL D A converter 1 bit PWM Accu Pulse D A converter Sampling frequency 352 8kHz 8 times oversampling MAKE LEAKAGE CURRENT OR RESISTANCE MEA Number of channels 2 Stereo SUREMENTS TO DETERMINE THAT EXPOSED PARTS Frequency response 5 20 7 ARE ACCEPTABLY INSULATED FROM THE SUPPLY Total harmonic distortion 0 004 at 1 2 CIRCUIT BEFORE RETURNING THE APPLIANCE TO Dynamic range 96dB THE CUSTOMER Signal to noise ratio 100dB Channel separation 90dB at 1kHz Wow and Flutter Below threshold of measurability Power consumption 12 watts Output level 2 volts r m s Dimensions WxHxD 455x110x306mm 18 x4 3 8 x 12 Weight 5 0kg 11 0 Ibs Specifications are subject to change without notice ONKYO AUDIO COMPONENTS DX 703 DX
14. ETRAKTA EJ STR LEN 0 6 Only 230V model Material GaAS GaAlAs Wavelength 780nm Emission Duration continuous Laser output max 0 5mW This output is the value measured at a distance about 1 8mm from the objective lens surface on the Optical Pick up Block 2 Certification label 120V model This label is located on the back panel PRODUCT 5 CERTIFIED BY THE MANUFACTURER TO COMPLY WITH DHHS RULES 21 CFR SUBCHAPTER J APPLICABLE AT THE DATE OF MANUFACTURE MANUFACTURED J Class 1 label Except 120V model This label is located on the back panel LUOKAN 1 CLASS 1 LASER LASERLAITE PRODUCT KLASS 1 ADVARSEL Denna maekning er anbragt apparatets h jre side og indikerer at apparatet arbejder med laserstr ler af klasse 1 hvilket betyder at der anvendes laserstr ler af svageste klasse og at man ikke p apparatets yderside kan blive udsat for utilladelig kraftig str ling APPARATET KUN BNES AF FAGFOLK MED SE RLIGT KENDSKAB TIL APPARATER MED LASERSTRALER Indvendigt i apparatet er anbragt den her gengivne advarselsm rkning som advarer imod at foretage s dnne indgreb apparatet at man kan komme til at udsaette sig for laserstr ling VAROITUS LAITTEEN KAYTTAMINEN MUULLA KUIN TASSA KAYTTOOHJEESSA MAINTULLA TAVALLA SAATTAA ALTISTAA KAYTTAJAN TURVALLISUUSLUOKAN 1 YLITTAVALLE NAKYMATTOMALLE LASERSATEILYLLE LASER APPARAT DX 70 IC BLOCK DIAGRAM AND DESCRIPTIONS CXA1571S RF Amp
15. ITBOYEST 81219662 10809662 V86c19 6C ASOSPTERT APOSPTEBT 8 OPI PCESZ OBODEFEER 8800 vT 8 APSZSLILT AVECOT6T8C 86011212 9681112 on sn en en In 1061 1064 10671 66V L6V 68V 88V 98 S8V r8V ERY c8 18V 08v CLV TLV tov COW 19V 09 ON 14Vd ON 334 de pug de S Asse oued 14014 Asse sued 11014 Usno 081 xX 8 50 mas Budda jos Og gg s LLe 13409 do lt S gt ned prams 6 d 91814 PIOUS lt 5 gt NAL qouy NAL qouy lt S gt 443 qouy d 9017 lt S gt 44 44 S Ae d gouy lt g gt ejd qouw S SSE 19XOPIQ IUO SSE 19 0819 10014 I9Use M 8 J0T x EM malas Surddei os Og d8 d LIE mains Suiddei Tnos ger ALLE mans Surddei joS Dg q8 S LLE Mains Sutdde1 72S D4 D01 2 LLY mans 46 5 24 89 611972 MINISD 199eds Pmodunorf AFL STON dutusng lourd lt M gt sued xoeg d sued x eg pued xoeq dH 1942219 eg eig 1932919 SISSE NOILdIHDS3A AVECCSCISC ANCCLSCASC XIOLS6IHI MIOLP6THI ISv 08907182 8800 Ptt8 A69PP8187 BEV VPEOSILT LEW VSLSUCESC APLSVCESC 9EY AI8SPCESC AOSSPZESC SEV A6LSPTERT ABLSPZERT VILSPTERT AOLSTCESC v A06901 LLT 468901107 t v OTOEFILS OR00EPEES ETY 88006 1168 Cv 8800
16. L LINEAR SYSTEM CLOCK INTERPOL ATION OPERATION SECTION SYSTEM CLOCK NOISE SHAVER OPERATION QUANTIZA TION DVOD 8 POWER SUPPLY FOR Dvss T DIGITAL POWER POWER SUPPLY FOR SUPPLY ANALOG FOR ANALOG AVSSI AVDD2 I 1 Serial input data bit clock 15 AVDD3 5V supply for analogue section word 18 TS Data output __3 COMPN select of PWM output 17 AVSS2 Ground for analogue section 4 TSTN __ Testterminal 18 RO 5 MUTEL Mutingoutputforleftchanne 19 AVDD4 Ground for analogue section 6 MUTER Mutingoutputforright channel 20 NC 7 DVSS Ground for digital section 21 XVDD SV supply for clock section 8 DVDD _ 5 power supply for digital section 22 XVSS Ground for clock section _ 9 10 __ 1 25 12 26 __13 Data output Crystal oscillator input Crystal oscillator output LO jDaaoupt 25 XDIVN System clock select Ground for analogue section 26 CKO Clock output Serial data input for left channel 14 AVDD2 15V supply for analogue section Serial data input for right channel 2 3 A 5 7 10 11 12 13 14 10 DX 705 CXP50112 369Q Microprocessor QIIO QII2 MEMORY IC gt u A4 80 SFT 75 0 U7OI RMCN REMOTE CONTROL NRSCI SENSOR a 4 RI BUFFER IN OUT DEE Om MOTOR 2 18 24 FL
17. RAM DIGITAL LOCK OUT RIO6 0103 TRACKING PHASE OFFSET RIIG OPTICAL PICKUP ORRECTION KSS210A SWITCH TRACKING 980 4405 0403 wn of g 5 m m o amp 9 ut x rw o 2 x o o e gt o 0 a N x u o au 5 x 9 0 tr a x n M Er 31 XRST 70 4 mew Oo gt 2 o 5 anon me o 2 mo DIGITAL PROCESSOR 0105 20 SLIDE MOTOR 0104 SPINDLE MOTOR 0113 0114 GATE CIRCUIT UP DOWN POWER SUPPLY CIRCUIT MICROPROCESSOR SV 0906 V RI OUTPUT 13V 5V DIGITAL SECTION ANALOG SECTION D912 X D905 8 MEMORY FILE Ys 15 a903 lt OPERATION 13V 1 KEY 5 0902 D901 4 5 2901 0905 TO FL TUBE X DX 705 ONLY F2 PE 32 mm HEADPHONE AMPLIFIER NG gt HEADHONE AMPLIFIER 5951 POWER SW POWER TRANSFORMER NPT 1138 VARIABLE S FIXED OUTPUT TERMINALS FIXED 6 VARIABLE P901 AC INPUT
18. _ __ v 9106 El 20201668 9109 i CXD2500AQ SEE TE CXP50112 zm uli ur oja 2 Se 25 1 Sis EA BEES ize unn H muli P ro 12 119 Dale b 10 i 9102 44 0 2 i lt TT m MI 5 0 zn TEL 2 Ki 1 su EEE Ae e ot T aoM 04 etm le SER Hei Ga 1 S sr mr x x ET 13 5 1 gt EE Pros Kanne eus m as tod llam ap ie C417 R431 PET 5 mes Q eg 9407 md Dean 37 a us c gt spass T e re muli f 5 D 3 L _ __ TRS l fo nen j 8 24 p Olten mr 1 404 2 2 oMi z a i 14 2 d och Fi n 7 RENE Lr 55 1 ore Op or 9 R 1 1 sarina cosi Jos101 192 120 50 1138003 1259 250 50 1136 03 400 ICP N1S eu 5 ONKYO CORPORATION MECHANISM EXPLODED VIEW PICKUP DRIVE UNIT EXPLOVED VIEW 8 9 PARTS LIST Sied shaft 8 Turntable chassis 2X5 Self tapping screw Motor gear Motor pc board Leafswitch NSCT 4P223 Connector 17 PARTS LIST 26 Tray Belt Damper 27 Washer Front tape 28 Loa
19. comparator output terminal form Focus OK comparator output terminal Tracking high frequency gain changeover input termi Defect bottom hold output terminal nal Defect bottom hold input terminal from Tracking high frequency changeover input terminal Defect bottom hold capacitor connection terminal Tracking drive output terminal Mirror hold capacitor connection terminal Inversion input terminal of tracking amplifier RF summing amplifier input terminal No inversion input terminal of sled amplifier RF summing amplifier output terminal Sled slide drive output terminal Tracking zero cross comparator input terminal Inversion input terminal of sled amplifier YM3433 18 bits 8 times Oversampling Digital Filter SM MORE THAN 400xFs SHL ACCUMULATOR gt S P x du KE adu gt 585 O ola SHIFTER voo fa k 0 SDI TEMPORARY RAM L SHL ST L DAC L channel deglitch signal output ST H 2 DACs L R channels deglitch signal output Not used 2 terminals Power supply terminal for crystal oscillator and deglitch signal system Connect the crystal oscillator for the system clock to these SDSY Clock input terminal to show
20. ding pulley 833430108 3TTB 10B BC Self tapping screw 29 2TTP 4S Tapping screw 24506959 Chucking pulley 30 Middle gear 24506876 Chucking chassis 3l Tray holder 834126069 2 6TTS 6C Self tapping screw 32 Tray guide left 248 18004 Yoke damper 33 Tray guide right 24832003 Magnet 34 838426038 2 6TTB 3C BC Self tapping screw 24830001 Chucking yoke 35 27301228 Tray holder front 24506879 Gear cover 36 27301224 Main chassis 801424 Screw with washer 37 24506890 Boss back KSM 2101 AAM Pickup drive unit 38 834120049 2TTS 4C Self tapping screw 24506870 Roller 39 Plate 40 Sub chass s 41 Insulator 42 Spring A 43 Spring B 44 Shaft 45 Hinge holder 46 Hinge 47 2 6TTW 8S Self tapping screw 2 6TTB 10B BC Self tapping screw 48 Connector pin W3 X 10F Washer 49 Motor pc board Drive gear 50 Motor ass 00 CO fF D REMOVEMENT OF DISC TRAY Screw for stopper Screw for stopper 1 Loosen the screw for stopper until the head of screw and the tray are the same height 2 Turn POWER switch to on 3 Prees OPEN CLOSE button to open the tray 4 Turn POWER switch to off 5 Remove the tray 18 DX 705 5 40 0 gear gt Sw 87 D A ne IN X C AN Y ERTL Q I AN a 16 15 14 19 703 705 ADJUSTMENT PROCEDURES Instruments required Dual trace oscilloscope Frequency counter AF oscillator Test disc SONY YEDS 18 AC vo
21. erminal No Repeat the low and high level GFS turn the high level is 5 of P105 high Optical pickup Focus servo circuit Is the curve S correct Yes Hold the high level than 1 sec Yes No Yes Tracking circuit 15 the the greating Tracking adjustment miss tracking OK greating Uh Optical pickup Yes No Is the Voltage of 0104 37 approx 2 54 Higher speed Lower speed No Q104 Q106 Optical pickup Q107 Slide mechanism Optical pickup Confirmation of grating Yes 1 Connect the oscilloscope across the ground of P106 and Terminal TE Range 5 0mV Div 20ms Div Use the high impedance probe 10 1 2 Play the eccentric disc 3 Turn fulley the semi fixed resistor R116 to the counter clockwise If the disc turns the higher speed brake by the hand When the shift of grating Grating is OK Does the pickup return to inner Is the rotation of disc correct No Mechanism Yes Normai speed Jitter trouble 9199 microprocessor 0108 CXD2500AQ Focus offset jitter trouble 0105 CXD2500AQ DX 705 CAUTION ON REPLACEMENT OF OPTICAL PICKUP The laser diode in the optical pickup block is so sensitive to static electricity 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
22. ertical 0 2V div Holizontal 0 2 ms div Adjust R117 until IKHz components of channels 1 and 2 on oscilloscope become same level After adjustment disconnect the AF oscillator and the oscilloscope 4 Tracking gain adjustment Set the output of AF oscillator to 1 2kHz 1 1 5Vp p Play the track 2 of test disc Connect the oscilloscope and the AF oscillator as shown below AF Oscilloscope oscillator GND CH1 CH2 Photo 4 Adjust R116 until 1 2kHz components of channels 1 and vertical 0 2 on oscilloscope become same level ohzontal 0 2 ms div After adjustment disconnect the AF oscillator and the oscilloscope After adjustment confirm that the center of tracking error signal becomes GND level 21 NIVO 50204 mG NIV Nl 135430 50204 9119 D 135440 231 9014 13118 233 amp 4018 34 TE 901 PRINTED CIRCUIT BOARD PARTS LIST MAIN CIRCUIT PC BOARD NAAR 4416 1 1A 2 2A CIRCUITNO Q101 Q104 Q106 Q108 0109 Q110 0111 0112 0120 Q301 Q302 Q303 Q401 Q404 Q901 Q902 Q903 Q904 Q906 0102 0905 0103 0105 0113 0115 0114 0116 0117 0405 0406 Q407 0408 Q119 QF101 QF102 D101 D104 D108 D109 D105 D110 D901 D904 D905 D908 D909 D912 D915 0910 0911 X301 L101 PART NO ICs 22240404 22240366 22240034 22240487 22240585 22240198 222741645 22240018 22240322 222755 22240321 22240520 22240201 222780055MIT 222790053 22278015
23. hen pickup lights on correct CAUTION 1 CAUTION 1 Turn the power switch to OFF Less than approx 1 7V Connect the DC voltmeter across the carbon resistor R103 Turn the power switch to ON Does the objeci No Does the triangle No Does the triangle No Measure the voltage and turn the power switch to OFF lens move to up and waveform output from waveform output from down sides pin 7 of Q105 pin 11 of Q104 4 4 Ber H Al Yes P101 QF101 QF101 120V model is not used 11531111 V ri Confirmation of Curve S 1 Put the disc into the tray 2 Set the semi fixed resistor R116 of focusing gain to the minumum position 3 Connect the oscilloscope to 1 of P107 4 Do the operation of focusing search Repeat the power switch to ON and Yes Test point QF102 Range 0 5s Div 0 5V Div Does the object len No Optical pickup move to up and down sides smoothly Q104 Q109 Focus servo circuit Does the disc No Does 39 of OK start to turn Q104 turn at the high Check the curve S Focus adjustment 7 Focus circuit clockwise level Does terminal No MON turn at the high level 7 0104 0108 pickup Yes Yes Spindle motor 0106 and Spindle motor Servo circuit Test point 1 of P107 Range 2ms Div 1V Div GFS 42 of Q109 No Does t
24. light high heat and humidity and extremely high and low temperatures Discs should never be left in the trunk or interior of an automobile in the sun since the temperature can become very high in such a closed environ ment Always store Compact Discs in the holders in which they were sold Never leave a disc in the player s disc holder for a long period of time Not this way 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 in user s area before turning the power switch on Voltage is changed by sliding the groove in the switch with a screw driver to the right or left Confirm that the switch has been moved all the way to the right or left before turning the power switch on 220V 10 at AC120V 220V 120V at AC220V Cleaning Compact Discs Before playing a disc wipe off the playing surface with a soft cloth to remove dust and other soil Wipe the surface in straight lines from the center of the disc outward not in a circular motion as you would with a phonograph record Do not u
25. ltmeter Jitter meter and Socket P4 Part no 25050138 1 Focus offset adjustment Load the test disc YEDS 18 on the tray and play the track 2 Connect the oscilloscope or jitter meter to terminal P106 Oscilloscope Adjust R109 until a clear trace of waveform pattern as shown photo 1 appear on the oscilloscope When the amount of jitter is broad set R109 to mechanical center Jitter meter Adjust R109 until the jitter meter reading becomes minimum Less than 10ns After adjustment disconnect the oscilloscope or jittter meter Oscilloscope range Vertical 0 5 V div Holizontal 0 5 ps div DC Ground Center NE a 1 2 Tracking offset adjustment Load the test disc YEDS 18 on the tray and play the track 2 Turn R116 to minimum position Counter clockwise Connect the oscilloscope between pin 3 TR of P107 and pin 2 GND of P106 Adjust R106 until the center of tracking error signal on the oscilloscope becomes GND level Turn R116 to the mechanical center After adjustment disconnect the oscilloscope P107 TR Oscilloscope P106 Vertical 500mV div Holizental 1 ms div Photo 2 GND DC Ground Center 20 3 Focus gain adjustment Set the output of AF oscillator to 1kHz 1 1 5Vp p Play the track 2 of test disc Connect the oscilloscope and the AF oscillator as shown below AF Oscilloscope oscillator GND Photo 3 V
26. q od reuruuo tZrb Sd VN Asse od mana Apddns 13M04 1 0Ztt SdVN SSe preog od purua 6199 4 Asse preoq od 8199 4 Asse peog od Kgpdsiq t Ltpp SI WN O Md 4556 preoq od ute vT 9 c ppp V VN lt q gt Asse od mmo T 9 ptb W V VN D 1 uuojsuzn 08611 14 lt M gt IJ9UUOJSUET IIMOFDASELT LAN d 1suuojsue 1 48611 14 lt q gt JSUUOJSUEn 1240d 086811 14 Arddns amod Mid p103 Arddas Ve CAOSCHHO SY lt q gt 9109 Afddns 12404 8149 2 5 910 AOSTA ASAI pug SSE P107 19 205 61 TOdOt SYSN 19905 02 1048 575 191205 0 8 5 VSN 19750S 0648 5 O M d 1SSVT PAT lt d gt 19971 d 19421 lt O M d gt HAST PWI YAONYA 19471 lt d gt NAS 12421 S dao qouy lt g gt 9A9 qouy S 1omod qouy LLON lt g gt I9mod qouy mals durddvi js Dg d8g d LLE mains durddei Og g8 S LLE 391 7 216 4 aD S sued API 20 pued Avi ON 33H 5 lt 1 lt 1 lt 1 lt lt 5 6 T O SP6IHI I 61SP6IHI T STSP6lHt LISP6lHT VU SISP6THI 9ICP6THI ASLLOOEC ALLLOOET AYLLODET ASLLOOEC 021652 6PIEST 10 APOTEST AYLIEST 10 AEYIEST 0160 2 802092 001211190 02016 2002 0180657007 24560002 56000 18909662 VCr l9 6c V
27. s PCM peak and level data 16 bits output Clock input for read out SQSO Muting control output Active H Connect to the ground Connect to the ground EFM full swing output Connect to the ground Audio data output mode changeover input Serial data at L and paraller data at H D A interface fe for 4 48 bits slot Word clock 2Fs D A interface for 48 hits slot LR clock f Fs Power supply terminal 5V Data output terminals Serial data of 48 bits slot Bit clock of 48 bits slot Serial data of 64 bits slot Bit clock of 68 bits slot 1 8 clock of 68 bits slot GTOP output XUGF output DA09 XPLCK output Note SSP Q104 CXA1372S Sens output Output to microprocessor System r reset Rest at low level Serial data i input from microprocessor ee a e Latch input from microprocessor l atch the serial data at trailing P ower supply Serial data transfer clock Input from microprocessor Sens input from SSP Track jump numbers count signal input Serial data output to SSP Serial data latch output to SSP Latch at trailing 2 Serial data transfer clock output to SSP 1 MIRR Mirror signal input LA6510 Power OP Amp ul uj 2 gt SM5861AP D A converter INPUT TIMING DINR INFINITE ZERO CONTROL TECT DINL DETECTOR INTERNA
28. se benzene chemical cleansers or phonograph record cleaning solutions to clean Compact Discs Also avoid static electricity prevention solutions since they can damage the surface of Compact Discs Problems Caused by Dew Dew can form inside a Compact player when it is brought from a cold environment into a warm room when a room is rapidly heated and if a player is left in a humid environ ment This dew can prevent the laser pickup from reading the data contained in the pits in the disc surface If the player does not operate properly because of dew remove the disc and leave the player s power switch on for about one hour to remove all moisture TROUBLESHOOTING GUIDE 0109 50 amp 51 Open amp Close ports 0106 Loading driver Operate when the voltage between 1 and 2 cl P104 is approx 14 0 Does the tray close Does the 7 2 Yes tray open for some time Tray IN OUT switch The breaking of wire of the socket P104 Slide mechanism trouble No Does the No Is the movement pickup to of stide mechanism inner smoothly Yes The breaking of wire of socket P103 Does the No Does the No Slide motor circuit Q104 Q105 taser pin 20 of 0101 turn 0109 on at the low level Yes Yes More than approx 1 7V Optical pickup APC circuit trouble Optical pickup Is the voltage of both sides of R103 w
29. t 0 033 F 5 50V Plastic 2200pF 5 50V Plastic 270pF 5 125V PP CIRCUITNO C425 C432 C433 C434 C435 C436 C903 C904 C905 C906 C907 C918 C908 C909 C910 C911 C912 C913 C914 C915 C917 C919 C920 C921 C922 C924 R106 R109 R116 R117 R145 R146 P101 P102 P103 P104 P106 P107 P901 P105 P301 PART NO Capacitors 354742219 374723334 374722734 393163327 354742229 354764709 354780229 354744719 354742219 375624744 354721029 354762219 354764719 354764709 374722244 374724744 Resistors 5210066 5210060 5210066 49163472407 49163472407 Plugs 25055152 25055153 25055148 25055149 25055038 25055045 25055138 Jack 25045330 Terminal 25045353 25045351 Holder 2719075 DESCRIPTION 220 u F 16V Elect 0 033 F 5 50V Plastic 0 027 F 5 50V Plastic 3300 F 35V Elect 2200 F 16V Elect 47 F 35V Elect 2 2 F 50V Elect 470 F 16V Elect 220 F 16V Elect 0 47 F 5 50V Plastic 1000 F 6 3V Elect 220 F 35V Elect 470 F 35V Elect 47 F 35V Elect 0 22 F 5 50V Plastic 0 47 u F 5 50V Plastic NO6HR22KBD Semi fixed NO6HR2 2KBD Semi fixed NO6HR22KBD Semi fixed RMI1 101J 4 7K X 7 Array RM1 101 4 7K X 7 Array NPLG 8P136 NPLG 9P137 NPLG 4P 132 NPLG 5P133 NPLG 2P29 NPLG 4P33 NPLG 8P122 NPJ 2PDBL184 NPI2PDBL199 Output NPJ 4PDWR197 Ourput DISPLAY CIRCUIT PC BOARD NADIS 4417 1 2 CIRCUIT NO
30. the input timing and L R channels partitioned of input data 7 Data input terminal 8 rp Power supply terminal Connect to 5V DLO ST LC DAC L and R channels data output terminal ST HC2 DAC L channel data output terminal 10 DRO R channel data output terminal 1 Word clock output terminal for output data DLO DRO 13 VSS Bit clock input terminal of input data Ground terminal DAC 2 DAC selection terminal DAC at low level and 2 DAC at high level 15 16 18 Bit number selection terminal 16 bits at low level and 19 bits at high level 16 DACCST L R channel deglitch signal output Not used gt gt ert DX 705 DX 703 DX 705 CXD2500AQ Digital Signal Processor oat DIGITAL PLL EFM ST DOUBLE SPEED SYNC PROTECTOR TIMING gt P W LB1639 Volume Motor Drive Voll Woul REGISTER RIAL PARALLEL PROCESSOR 5 74HC164 8 bits Serial Parallel Output Shift Register TRUTH TABLE HP H 1 H SERIAL A INPUTS QA OUTPUTS OUTPUTS QD CLEAR GND CLOCK SYMBOL 1 0 DESCRIPTION Focus OK input DESCRIPTION _ GFS output Output filter changeover output of spindle motor DAO RFCK output Spindle motor control output 2 output Spindle motor servo control DAG _ XRAOF output Spindle motor servo control DAO MNT3 o
31. tput gt 7 c 6 1 4 c e 50 5 52 idi S 2 LOSE SENS nterface of signal processor and microprocessor ICs ocus OK input terminal Focus OK at the high level 7 Tray close detection input terminal OUTSW Tray open detection input terminal MD2 Digital output control output Remote control signal RI signal output terminal NRSCI Remote control signal RI signal input terminal Remote control signal input terminal Music file data signal 7 Vss round terminal lock output terminal C3 45 stem clock input terminal J lt Ti Negative power supply terminal for fluorescent indicator tube Optical pickup control output terminal On at the low level Music file read write control signal Music file shift signal Control the serial data at the rise pulse usic file address signal I Un AJ gt m 1 gt o 12 PACKING VIEW REF NO A D N PART NO DESCRIPTION 29110071 Damplon tape 29100037A 500 X 650mm Styrene bag 29091434Y PadR 29091433Y 282301 Sealing hook 29052371Y Master carton box lt DX 703BH gt 29052390Y Master carton box lt DX 703S gt 29052374Y Master carton box lt DX 705BH gt 29052390Y Master carton box lt DX 705S gt Accessary bag ass y 2010098A Connection cord 2010200 Remote control cord 2414
32. utput when GFS 5 high _MNT2 output MNT output _MNTO output Oscillation circuit output for analog FEM PLL Oscillation circuit input for analog EFM PLL 8 6436MHz Test te rminal Control output for aperture correction H when Reh Control output for aperture correction when Ich Charge pump output for analog EFM PLL Ground terminal Crystal oscillation circuit input of 16 9344MHz or 33 B6ABMHz input Crystal oscillation ci circuit output of 16 9344 MHz PLL charge pump output for variable pitch Clock input for variable pitch from VCO 16 934MHz Filter output for master PLL Crystal selection input terminal 1 when 16 9414MIHz when 33 86B8MHz 2 3 divided output of pins 23 8 on 1 2330 output 16 output Digital output control input On aH H amp Off at L Filter input for master PLI Charge pump output for master PLL Analog ground VCO control voltage input for master DOU Digital output Analog section power supply 5 Emphasis control output Active H EFM signal input WECK Write frame clock output Sub code detection output H when is detected SO or Sl Serial output of sub code P W Clock input for read out SBSO Sub Q 80 bit
33. uy 0 1 2682 pued x eg ALOSIZILE mars Suiddvi Og d8 d LLE ORO0EPEER 9v q puedyeg 99612112 9v mas Surdder yrs Og g8 S L1c 8800 cov dH Pyg Asse 13 5611 A100008r7 IZ do APSTSLILZ I9v D 19219 ATF90 LLZ lt M gt Asse preoq od ed AVEZILEIST 09v xovg AIZSIPILZ V YOUMS 10199125 2 8 5 C 8ES061HT in 5 joued Kex 86611242 g KOTSIPILZ TY Asse preog od 1 0 1299 54 Z IZS06IHI 911 lt g gt ured AMGETITLZ 86v SISSE ASLCCO0TLZ Iv NOILdIH9S30 ON ON 33H 53 ONLHvd NOILdIlHOS3Q ON SLYVd S0L XQ 151 Siu Vd A B C D E F SCHEMATIC DIAGRAM MODEL DX 703 p 2311 1 111118 0000000 60009000 O O 0 O O O Or1 0 O 00 00 Bm 1 Ie 006 506 1855 000 00 180 000060185 O00 EL ECC ERE 2 Q108 1 CXD2500AQ TA BRE TD on 07 wen ri Hi NE 1 a ae Wu mm I Hl ONKYO CORPORATION A B C D SCHEMATIC DIAGRAM MODEL DX 705 en M Lc e aa LES E B 4 Q 8 50060018000 905007189 0096 007180055006 iia GAL emm SIL rm Lo ix m an BR ii _
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