JVC RC-EZ31
Contents
1. RICH R264 820 e AN e AC B gt O N CN N CN201 C2222 L2 L2 L2 L LLL _ _ _ __ 5 S201 6 A 1 h23 AGND R801 T801 A C801 21 BN C B C225 C260 223 223 O 1 5K R221 10K R R 8 fe 6 36 8V R L C219 CN204 SYNC 202 CN304 2 23 5 3 5 Tuner section R109 10K SOLO 4089 111 dO VOLO VZ0LMS OL LOLNO Q O lt Z 9 2 X amp C int 2010 O H8L a lt x Lore gt HOOL 400 ZOLY LLLO NEGL HOOL 80 2 O z 41220 OR 2 m 7 7 Oe m ELLO 14 2 259 LOL49 5 l e 2059 10071 a31 1S A N 197 O e09 9112441 E ul XdN 9012 SON ec 2 8 LI S Oc OSO WV 02 OSONA INO XIN yT 20 44 LNO 35 pz NV LO LM ML S dz GLLO OLLY i e 01 HE HE FAR 8rLPNI COLT Z lt gt LL 2 24 lt gt Victor company of Japn Limited Audio Video S2. EQ BASS VOL CONTROL R P AMP AM ANT AM MSN R P HEAD vO 1M i RESET MOTOR DOOR SW DECK SW L SPEAKER BOX IC301 POWER AMP 901 D SERVO MP3 DECODER 1M DRAM SPEAKER BOX ME SPINDLE MOTOR 902 SERVO DRIVER RECTIFIER ee SLED MOTOR E AC IN 2 13 5 1 2 Block diagram for RC EZ31 R P HEAD DISC SPINDLE MOTOR SLED MOTOR CD DOOR LEAF SW 201 MOTOR ACTUATOR DRIVER FM ANT FM RF FM OSC WY 101 FM F E IF DET MPX RF IF DET AM ANT AM OSC 501 SIGNAL SELECT SW TU 5V REG L SPEAKER IC301 POWER AMP VE RSPEAKER 55 RECTIFIER AC INPUT DC SUP SW TRANSFORMER 5 2 STANDARD SCHEMATIC DIAGRAMS for RC EZ35 5 2 1 Primary Amplifier section TO P R BOARD CN202 TO MCU BOARD CN701 TO CD DOOR LEAF SW TO TUNER BOARD CN101 TO CD BOARD CN901 TO CN801 OOOO O 0O OO 0 0 470 1 4W 4 144 148 i Sk 5 E Les E Ou CN905 R523 IN4148 LC75342 10K 0403 To IN4148 C411 R423 R418 pen 10 AN TO AUDIO BOARD CN206 1 TO CONTROL BOARD CN707 2 AN R805 CN711 10 SW719 Rese t R420 5 6
3. com 8 8 92095 5598 BRB HEE BG 25 J OSSE ON Are z LXX LLL COM Y T gt VDD2 02 coms 888 BL 01 06 5 zo 1 S 64 coma 514 7 01 CN703 06 P 513 B02 O 10 n NERA x FF EE vss3 s x NREM701 Po 12 R785 R783 R786 R784 R787 vons st E Bo M 16 ns 06 mm 71 39K o 390 i 1 2K id e AMUTE 0 CM 510 T CERCN sls Pu a C NIO Ojo CD 0 ne 701 CN706 SW714 e E 5 TLC IF_IN O Nch 57 Wi PRESER UP FM MODE TUNER PROGR EQ 72 O TR_M 0 Nch LC877C64C 57K1 S6 e REPEAT ICLK CN702 R726 73 C TR M 0 Nch s O gt RR RE 3 tk a Tor sa O 54 OT cx ae MEN S 5 Q TUEV_CE 0 Nch s s e 104 1 R781 780 C 5 EE rma 4 n CLK R728 R729 1K IF CLK 0 CM TX e j 5 Q l MES A Lom LT i o SS wer 100 R730 1K o 3 lt 100 05 l sO BEBE ee ee 6 AAO up pp esuB amp BURBS 0 9 0 0 0 0 0 0 0 S8 5 3 4 4 5 17 B06 SW711 SW712 VOL DOWN HBS eb
4. 8 R751 R709 390 AN R7 lt e ges CE t oss vk g e LES Lele SL FIX me ARE 820 p gt 1 gt gt H DER ds x e STOP x SW701 SW702 SW703 SW708 SW704 R703 791 R792 R793 R794 R795 3 IN4148 aK 47K _ 68K 8 2K _ 10K 12K R717 100K b n OS E d N eo N e e 5 gt ul 2 EE ns ON C719 104 D705 IN4148 IN4148 2 16 5 2 3 CD servo section CN902 PICKUP SW901 Limit Switch 1 MOTOR SLED 0 1 20 PHLPF 683 SCAN x ex Mill MOTOR2 SPINDLE R940 76 LRVDD R938 C 1 902 LA6548NH R943 TESTO d J wg C938 102 C937 102 CN901 TO AUDIO BOARD CN905 TO MCU BOARD CN702 2 17 5 2 4 Cassette mechanism section IC201 BA3308 J 9 9 Q C259 C258 205 SW201 1 A SW201 D 100P N NU O CES C216 5 47K L CH 1 L CH 0201 6 mE ze ES MITIS ar z e SW201 1 B SW201 5 A D m R CH cw201 CN201 O O
5. 0 OF 2 Boo E 10 m 12 13 7 e STS R209 8K2 N N 211 222 SW201 6 C210 333M QO Q 1 2 3 R801 100 804 MUTE 10 o 223M C806 Q801 500P NSS Beat Cutg 5 N 4 ES Y Mic Rec 8 Im o ROut6 CN202 GND 5 o B In3 219 103 MAIN BD CN305 24 8 STDS13 108 BIAS 80 2 Q203 Q202 9014 9014 2 18 5 2 5 Tuner section FMVT 1 1 8 0 1V H 7 2 0 SV ALL AMVT 1 1 4 0 1 2 0 5V XE UK R143 L 1 0 01V H 7 2 0 5V CA KR AU FM ANT 2 OK E GND TP8 E QO BPF 87 108MHz m 103 SENE N eu 19 P n e Dt S 92 B TP11 R SF x So DER e E I LO S gt 2 le 29 2 r Of 5 2 2 3 qs R135 1 124 127 104 16 X85 L j 18K 103 O TU R 20 GND 20 R121 HO 8V CN101 GND2 23 2 22 101 R122 10 1 AMRF R 3 AMOSC 4 21 2 FMIFOUT FMOSC 6 GND1 DETOUT FBUFF MPXIN ROUT AMIFOUT LOUT 16 FMIFIN FM AM 15 AMIFIN ST MONO 14 a AGG DET 13 i LA1823 TO AUDIO BOARD CN105 STER AM COIL ANT 65 25 0108 25 33300 25 ps 108 390P P
6. Warning 1 This equipment has been designed and manufactured to meet international safety standards 2 It is the legal responsibility of the to ensure that these safety standards are maintained 3 Repairs must be made in accordance with the relevant safety standards 4 It is essential that safety critical components are replaced by approved parts 5 If mains voltage selector is provided check setting for local voltage 1 3 Caution Burrs formed during molding may be left over on some parts of the chassis Therefore pay attention to such burrs in the case of pre forming repair of this system 1 4 Critical parts for safety In regard with component parts appearing on the silk screen printed side parts side of the PWB diagrams the parts that are printed over with black such the resistor diode and ICP e or identified by the mark nearby are critical for safety When replacing them be sure to use the parts of the same type and rating as specified by the manufacturer This regulation dose not Except the J and C version No MB593 1 3 Important for laser products 1 CLASS 1 LASER PRODUCT 2 CAUTION For U S A Visible and or invisible class laser radiation when open Do not stare into beam Others Visible and or invisible class 1M laser radiation when open Do not view directly with optical instruments 3 CAUTION Visible and or invisible laser radiation when
7. open andinter lock failed or defeated Avoid direct exposure to beam 4 CAUTION This laser product uses visible and or invisible laser radiation and is equipped with safety switches which prevent emission of radiation when the drawer is open and the safety interlocks have failed or defeated It is dangerous to defeat the safety switches For U S A CAUTION Visible and or invisible class II laser radiation when open Do not stare into beam Others CAUTION Visible and or invisible class 1M laser radiation when open Do not view directly with optical instruments ACHTUNG Sichtbare und oder unsichtbare Laserstrahlung der Klasse 1M bei offenen Abdeckungen Nicht direkt mit optischen Instrumenten betrachten ATTENTION Rayonnement laser visible et ou invisible de classe 1M une fois ouvert Ne pas regarder directement avec des instruments optiques VOORZICHTIG Zichtbare en of onzichtbare klasse 1M laserstralen indien geopend Bekijk niet direct met optische instrumenten ATTENZIONE Radiazione laser in classe 1M visibile e o invisibile quando aperto Non osservare direttamente con strumenti ottici VARNING Synlig och eller osynlig laserstralning klass 1M denna del ppnad Betrakta ej str len med optiska instrument VARO Avattaessa olet nakyvalle ja tai n kym tt m lle luokan 1M lasersateilylle Ala tarkastele sita optisen laitteen lapi ADVARSEL Synlig og eller usynlig klasse 1M laserstrali
8. pick up semicondicator lazer ennas or ds 5 Sig Radio section Frequency ranges FM 88 MHz 108 0 MHz AM 530 kHz 1 600 kHz Ant Telescopic antenna for FM Ferrite core antenna for AM Cassette deck section 4 track 2 channel stereo Electronic governor DC motor for capstan Hard permalloy head for recording playback magnetic head for erase Fast wind time Approx 120 sec C 60 cassette General Speaker 10cmx2 40 3W Power output 4 W 2 W 2 W at 4 10 THD IEC268 3 Output terminals 5 x 1 3 5 mm stereo Power supply AC 230 V 50 Hz DC 12 V R20 D 13F cells x 8 Power consumption 13 W at operation 1 5 W at standby Dimentions 435 mm W 156 mm H x 241 mm D Mass Approx 2 8 kg without batteries Design and specifications are subject to change without notice 1 2 No MB593 SECTION 1 PRECAUTION 1 4 Safety Precautions 1 This design of this product contains special hardware and many circuits and components specially for safety purpos es For continued protection no changes should be made to the original design unless authorized in writing by the manufacturer Replacement parts must be identical to those used in the original circuits Services should be per formed by qualified personnel only 2 Alterations of the design or circuitry of the product should not be made Any design alterations of the product should not be made Any design alterations or additions will void the
9. 00 2200 104 103 2 D902 1 4148 25 1342 R946 SX ZZ 470 C919 X901 C942 220U e 16 934MHz 22 27 MS Zn EH ROUT 2SA608NF AMUTE GND BE BE R902 100K oes TET TT TT 2 2 R903 100K x gp 8 8 5 8 8 lt x c a DMUTE CN903 D C FE o 16 PINS R904 100 i FSEO 47 VREF 1 16 10 coo RANDOMKEYO2 46 15 RANDOMIKEYO2 3 14 KEYIN KEY11 180K E 2 MEET 12 DIGI KEY13 6 KEVINKEVH 4 11 DIGIKEY14 8 C901 104M R908 150K R909 VVDD PROG KEY12 Y LIT 9 SEG2 COM2 GND 8 SEG3 COM3 LD ED FR DIG4 KEY13 42 7 SEG4IS1 VR 6 SEG5 S2 1 902 Er MD 2 em IC901 vss DIG2 KEY14 41 5 R944 LC78601RE E d T LA9242M EFMO DSP NC 40 3 SEG8 S5 n HD Aus lm a TO CD DECK El TMDO SEG1 COM1 38 T E Midi i i CSC1469XH C917 104 C916 220U SPIN GND 6 2 22 5 3 4 Cassette mechanism section 1 DISCONNECT POWER CORD BEFORE SERVING 2 RECOMMEND THE UNIT BE OPERATED BY DC 12V VOLTS DURING TROUBLE SHOOTING 3 COMPONENTS MARKED WITH HAVE CRITICAL CHARACTERISICS ONLY REPLACE WITH THE COMPONENT OF THE SAME TYPE NUMBER 4 SUBJECT TO CHANGE WITHOUT NOTICE LICH R265 820 Dee o
10. 01 0 04 s Box 2 5 5 2 e 5 2 501 4052 e TO CN1101 3 3U 18K o 5 P BATT 12V CD L LO ik em SELE Less Les 28 1UF R391 3 9K co N O CD 8V R395 2 2K IN4148 5 3 2 Front sction REM 01 ee AS 20 4 81 SW705 SW704 SW706 REPEAT O O m O O SW703 STOP SW702 mn SW701 MEMORY 18PINS V V V NV NV VV ON ON NV V CN701 CNS 9935 7235 59 5 9345 1235 9 CWO9 PLAT e LA3A COA3 O O CN702 CN203 2 21 5 3 3 CD servo section C950 C938 O 104 104 SEG3 COM3 C923 sur SEG4 S1 SEG5 S2 TES SEG6 S3 R917 3K3 5 JP 3 9 CLOCK T SEG8 S5 2 8 SEGTIS4 9 pour amp noise 2 PLK sLo 5 SLEO 53 sLEO 5 R920 22K AN 911 R918 68K R934 150 0901 IN4148 CW904 M M m 41211111 T m gs C930 1000 gY C949 L 10 C928 A 100P 0904 934 935 R907 C953 C960 1001 100 103 1
11. 5 314 Oy B 8 Q L302 10T pe i 2 Coll x a o O C313 rey L301 VR301 B 228 24 ATOUE 16V ou JK301 HEAD SOKA C301 N Olo C369 102PF i x x C325 1UF 1UF el 5 SP301 Y CN307 TO Rec BD CN202 R369 1K c N 2 3 IC301 UTC8227 102P 102P 102P R222 10 GTS IG LE qd RR 9 Nl SOKA C324 C302 1UF M e RR STR 5 lu T 8 GND Nox 1UF 470uF 16V n 8V 9 55 ac 828 18 C314 R L _ lt dk oos e LO 9 o SP302 2 SYNC E Q302 ES 5 LO e 5 CN307 D1936 LO C402 rA S ARS pl geo 2200UF 25V 220U 25V e 91 6 Q 5 R381 1 2K lt O 5 2 5 26 LEAF SW Q371 N vw Y 2 CN1102 os 58050 A g S 3 m C318100UF 0314 gt S aia a 28 i REMARK wo D 0309 JP VERSION 110 1 2A125V VERSION F1101 T2AL250V R396 DC 10K 5 lt 5 C1102 0 04 di AS LO gt AC 5 9 me LO 2 gt 2 ui D1102 IN4001 AC LINE O e i x D 1 R373 33 x Su 3 C372 0 1UF L m 5 s 4 7 3 gt 5 o D1103 IN4001 Te LO LO Oo AS 5 e o z S8 11
12. 612R z VD103 0109 8050 SVC348 C107 E ner z 2 re R117 T 56 10 S R106 O ST 680 Do R101 C105 Oe 5 CE 4K GUN 223 e 8 So Sie SCHO 3 an STS 1000 Of DI SK O CL CN102 TO CONTROL BOARD CN708 R140 2K2 C147 10 R139 2K7 R144 10 140100 X R142 207 104 D C150 C148 gt 223 amp ns C152 10100 BIS S Low 100U 223 DIN e N GND C154 L 20 GND GND R110 680 D104 R132 10K IN4148 R129 5 3 STANDARD SCHEMATIC DIAGRAMS for RC EZ31 DISCONNECT POWER CORD BEFORE SERVING 5 3 1 Primary Amplifier section RECOMMEND THE UNIT OPERATED BY DC 12V VOLTS DURING TROUBLE SHOOTING COMPONENTS MARKED WITH HAVE CRITICAL B C Rch Lch GND CHARACTERISTICS ONLY REPLACE WITH THE COMPONENT OF THE SAME TYPE NEMBER SUBJECT TO CHANGE WITHOUT NOTICE 8V o O gt Q301 56 S A R313 120 L303 10T 2 01936 e gt LS D 2 R314 Tv vs NS 2
13. JVL SERVICE MANUAL ah ON CD PORTABLE SYSTEM RC EZ35SB RC EZ35SE RC EZ35SEN RC EZ35SEV RC EZ31BB RC EZ31BE RC EZ31BEN RC EZ31BEV SERVICE POLICY No service part is available for this model Exchange only 2355 Lead free solder used in board material Sn Ag Cu melting point 219 Centigrade TABLE OF CONTENTS PR CAUTIONS ee a ce 1 3 SPECIFIC SERVICE 8 1 5 DISASSEMBLY hia mah Suet tense hear kde eK oe 1 6 ADJUSTMENT ee uad Pues eee 1 11 TROUBLESHOOTING EE ee Ere doser 1 12 COPYRIGHT 2006 Victor Company of Japan Limited No MB593 2006 12 SPECIFICATION RC EZ35 Compact disc player section Compact disc player Signal detection Non contact optical pick up semicondicator lazer Radio section Frequency ranges FM 87 5 MHz 108 0 MHz 522 kHz 1 629 kHz Ferrite core antenna for AM General 10 x 4 0 Power output 4 W 2 W 2 W at 4 Q 10 THD IEC268 3 Output terminals PHONES x 1 3 5 mm stereo Power supply AC 230 50 Hz DC 12 V R20 D 13F cells x 8 Power consumption 17 W at operation 1 5 W at standby Dimentions 435 mm W x 156 mm H x 241 mm D Mass Approx 2 8 kg without batteries RC EZ31 Compact disc player section Compact disc player nal detection Non contact optical
14. K 410 2200 25V MOTOR CASSETTE DECK R312 10K R309 2 2 NO A R310 100 L301 15UH R311 1303 M 100 15UH 1302 15UH JK301 HEADPHONES JACK r 1 Cea a c c ee gt 6 e lt 5 01104 01103 1101 i IN4001 IN4001 2 125V 3 LA 9014 421 O i R402 ET TSA 22K a DC 55 2 ETSYES gt lt 2 9 ACINPUT o84 B 22 JA POWER TRANSFORMER 8580 58 2 52 1 9 3 C gt e H gt um NT BATT 95 S CW301 R 4 C312 3 10000 1 R SPEAKER L SPEAKER 2 15 5 2 2 Front section MP3 TRACK FOLDER REPEAT RANDOM KI NRO INTRO Ni SLEEP DN LN PN WMA STEREO 5 ROCK JAZZ CLASSIC PLAY RANDOM DISPLAY FOLDER FOLDER CN708 CN707 TUNER BOARD CN102 CUT BOARD CN711 COCO OO OO OO 01 Lo o KR ns E
15. ly sug rz s nyitott llapotban Ne n zze k zvetlen l Optikai m szerekkel FE FJ bos n FUP 1M ARREST 1 9 Wu up ud 1M Kil SEAT ENS HENE T RL 52031631 Bass 1M 4 27 45 LL te 55 4 1M AEP TPA W E IM AoA pile US UC FF TE AR EH A nl A REPRODUCTION AND POSITION OF LABELS and PRINT WARNING LABEL and PRINT 1 4 No MB593 INVISIBLE CLASS 1M VISIBLE ET OU INVISIBLE DE CLASSE VISIBLE Y O INVISIBLE LASERSTR LNING HET LEE CAE mame CON INSTRUMENTAL STRALEN MED OPTISKA lt EEV ENG OPTIQUES FRA OPTICO ESP INSTRUMENT SWE SECTION 2 SPECIFIC SERVICE INSTRUCTIONS This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS No MB593 1 5 3 DISASSEMBLY 3 1 Main body 3 1 1 Removing Rear cabinet assembly See Fig 1 to 4 1 Remove the four screws five screws attaching the Rear cabinet assembly See Fig 1 2 Disconnect the Rod antenna wire from post pin of the Tun er board assembly See Fig 2 3 Disc
16. manufacturers warranty and will further relieve the manufacture of responsibility for personal injury or property damage resulting therefrom 3 Many electrical and mechanical parts in the products have special safety related characteristics These characteris tics are often not evident from visual inspection nor can the protection afforded by them necessarily be obtained by us ing replacement components rated for higher voltage watt age etc Replacement parts which have these special safety characteristics are identified in the Parts List of Ser vice Manual Electrical components having such features are identified by shading on the schematics and by A the Parts List in the Service Manual The use of a substitute replacement which does not have the same safety charac teristics as the recommended replacement parts shown in the Parts List of Service Manual may create shock fire or other hazards 4 The leads in the products are routed and dressed with ties clamps tubings barriers and the like to be separated from live parts high temperature parts moving parts and or sharp edges for the prevention of electric shock and fire hazard When service is required the original lead routing and dress should be observed and it should be confirmed that they have been returned to normal after reassem bling 5 Leakage shock hazard testing After reassembling the product always perform an isola tion check on the exposed metal
17. ng ved abning Se ikke direkte med optiske instrumenter AVISO Radiacion laser de clase 1M visible y o invisible cuando esta abierto No mirar directamente con instrumental ptico PRECAUGAO Radiac o laser de classe 1M visivel e ou invisivel quando aberto olhe directamente com instrumentos pticos 5 CAUTION If safety switches malfunction the laser is able to function 6 CAUTION Use of controls adjustments or performance of procedures other than those specified here in may result in hazardous radiation exposure N CAUTION Please use enough caution not to see the beam directly or touch it in case of an adjustment or operation check PRECAUCAO Radiac o laser de classe 1M vis vel e ou invis vel quando aberto N o olhe diretamente com instrumentos ticos UWAGA Otwarcie spowoduje na widzialne i lub niewidzialne promieniowanie lasera klasy 1M Nie patrze bezpo rednio w przyrz dy optyczne UPOZORN N P i otev en vyd v viditeln pop neviditeln laserov oz en t dy 1M Ned vejte se do otvoru p mo s optick mi n stroji FIGYELMEZTET S L that s vagy l thatatlan 1M oszt
18. onnect the connector wire from Amplifier board as sembly connected to connector CN101 of the Power trans former board assembly See Fig 3 4 Disconnect the connector wire from Capstan motor con nected to connector CN102 of the Power transformer board assembly See Fig 3 5 Remove the solder the grand wire from Tuner board sol dered to shield plate See Fig 4 Power transformer board Fig 3 Fig 1 Rod antenna wire Tuner board assembly Fig 2 Post pin 1 6 No MB593 3 1 2 Removing Top cabinet assembly See Fig 5 6 1 Disconnect the connector wire from Cassette mechanism assembly connected to connector CN205 of the Amplifier board assembly See Fig 5 2 Disconnect the connector wire from speaker connected to connector CN301 of the Amplifier board assembly See Fig 5 3 Remove the solder the grand wire from Cassette mecha nism assembly soldered to Amplifier board assembly See x Fig 5 4 Remove the three screws attaching the Top cabinet as 4 Fa 3 j NG e s 5 C s sembly See Fig 6 Ground wire Fig 5 Fig 6 3 1 3 Removing the Cassette mechanism assembly See Fig 7 1 Remove the four screws D attaching the Cassette mecha nism assembly No MB593 1 7 3 1 4 Removing Amplifier board assembly See Fig 8 9 1 Disconnect the card wire from LCD board assembl
19. parts of the product an tenna terminals knobs metal cabinet screw heads headphone jack control shafts etc to be sure the product is safe to operate without danger of electrical shock Do not use a line isolation transformer during this check Plug AC line cord directly into the AC outlet Using a Leakage Current Tester measure the leakage current from each exposed metal parts of the cabinet particular ly any exposed metal part having a return path to the chassis to a known good earth ground Any leakage cur rent must not exceed 0 5mA r m s Alternate check method Plug the AC line cord directly into the AC outlet Use an AC voltmeter having 1 0000 per volt or more sensitivity in the following manner Connect 1 5000 10W resistor paralleled by a 0 15 AC type capacitor between an ex posed metal part and a known good earth ground Measure the AC voltage across the resistor with the AC voltmeter Move the resistor connection to each exposed metal part particularly any exposed metal part having a return path to the chassis and measure the AC voltage across the resistor Now reverse the plug in the AC outlet and repeat each measurement Voltage measured any must not exceed 0 75 V AC r m s This corresponds to 0 5 mA AC r m s AC VOLTMETER Having 1000 ohms volts or more sensitivity 0 154F AC TYPE Place this probe on each exposed metal part 1500 62 10W Good earth ground 1 22
20. unction board assem bly connected to connector CN102 of the Tuner board as sembly 3 Remove the tree screws G attaching the Tuner board as sembly Solder point CN707 Ground wire Fig 10 2 Solder point CN102 No MB593 1 9 3 1 7 Removing the Function board assembly See Fig 12 1 Disconnect the card wire from LCD board assembly con nected to connector CN103 of the Function board assem bly m H 2 Remove the four screws attaching the Function board assembly fe in x LAS a vi 2 4 al 3 1 8 Removing the Power switch board assembly See Fig 13 1 Disconnect the connector wire from LCD board assembly connected to connector CN709 of the Power switch board assembly 2 Remove the three screws J attaching the Power switch board assembly 1 10 No MB593 3 1 9 Removing the LCD board assembly See Fig 14 1 Remove the two screws K attaching the LCD board assem bly Fig 14 3 1 10 Removing CD mechanism assembly See Fig 15 1 Removing the four screws L attaching the CD mechanism assembly SECTION 4 ADJUSTMENT This service manual does not describe ADJUSTMENT No MB593 1 11 lt gt SECTION 5 TROUBLESHOOTING 5 1 BLOCK DIAGRAM 5 1 1 Block diagram for RC EZ35 5 52222 22 IC101 T FM F E IF DET MPX 501 FUNCTION SELECT 201
21. y con nected to connector CN701 of the Amplifier board assem CN701 906 Amplifier board bly See Fig 8 be assembly 2 Disconnect the connector wire from Amplifier board as sembly connected to connector 901 of the CD servo board assembly See Fig 8 3 Disconnect the connector wire from CD door switch con nected to connector CN906 of the Amplifier board assem E n EE bly See Fig 8 6 D d 4 Disconnect the connector wire from Amplifier board as LR ER NX sembly connected to connector CN101 of the Tuner board assembly See 0 9 5 Disconnect the connector wire from Amplifier board as sembly connected to connector CN801 of the Headphone jack board assembly See Fig 9 6 Remove the three screws attaching the Amplifier board assembly See Fig 8 servo board CN901 assembly 1 8 No MB593 3 1 5 Removing Headphone jack board assembly See Fig 10 1 Remove the solder the grand wire from LCD board assem bly soldered to Headphone jack board assembly 2 Remove the one screw F attaching the Headphone jack board assembly 3 Disconnect the connector wire from Function board assem bly connected to connector CN707 of the Headphone board assembly 3 1 6 Removing the Tuner board assembly See Fig 11 1 Remove the solder of the grand wire from Function board assembly soldered to Tuner board assembly 2 Disconnect the connector wire from F
22. ystems category 10 1 1chome Ohwatari machi Maebashi city Gumma ken 371 8543 Japan No MB593 Ve Printed in Japan VPT
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