JVC RC-EZ31BB Service Manual Download Page 26

Page: 26 / 26

(No.MB593)

VPT

Printed in Japan

Victor company of Japn, Limited
Audio/Video Systems category 10-1,1chome,Ohwatari-machi,Maebashi-city,Gumma-ken, 371-8543,Japan

Summary of Contents for RC-EZ31BB

Page 1: ...C EZ31BB RC EZ31BE RC EZ31BEN RC EZ31BEV COPYRIGHT 2006 Victor Company of Japan Limited Lead free solder used in the board material Sn Ag Cu melting point 219 Centigrade TABLE OF CONTENTS 1 PRECAUTION 1 3 2 SPECIFIC SERVICE INSTRUCTIONS 1 5 3 DISASSEMBLY 1 6 4 ADJUSTMENT 1 11 5 TROUBLESHOOTING 1 12 SERVICE POLICY No service part is available for this model Exchange only ...

Page 2: ... DC 12 V R20 D 13F cells 8 Power consumption 17 W at operation 1 5 W at standby Dimentions 435 mm W 156 mm H 241 mm D Mass Approx 2 8 kg without batteries Compact disc player section Type Compact disc player Signal detection Non contact optical pick up semicondicator lazer Number of channels 2 channels Radio section Frequency ranges FM 88 MHz 108 0 MHz AM 530 kHz 1 600 kHz Antennas Telescopic ante...

Page 3: ...ack 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 the 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...

Page 4: ... 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 are defeated It is dangerous to defeat the safety switches 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 s...

Page 5: ... No MB593 1 5 SECTION 2 SPECIFIC SERVICE INSTRUCTIONS This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS ...

Page 6: ...nect 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 Fig 1 Fig 2 Fig 3 Fig 4 A B B B Rod antenna wi...

Page 7: ...ker 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 Fig 5 4 Remove the three screws C attaching the Top cabinet as sembly See Fig 6 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 assem...

Page 8: ... connector wire from CD door switch con nected to connector CN906 of the Amplifier board assem bly See Fig 8 4 Disconnect the connector wire from Amplifier board as sembly connected to connector CN101 of the Tuner board assembly See Fig 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 scr...

Page 9: ...ction board assem bly connected to connector CN707 of the Headphone board assembly Fig 10 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 Function board assem bly connected to connector CN102 of the Tuner board as sembly 3 Remove the tree screws G attaching th...

Page 10: ...board assem bly 2 Remove the four screws H attaching the Function board assembly Fig 12 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 Fig 13 CN103 H H H H J J CN709 ...

Page 11: ...move the two screws K attaching the LCD board assem bly Fig 14 3 1 10 Removing the CD mechanism assembly See Fig 15 1 Removing the four screws L attaching the CD mechanism assembly Fig 15 SECTION 4 ADJUSTMENT This service manual does not describe ADJUSTMENT K K L L L L ...

Page 12: ... M E M O ...

Page 13: ...1 FUNCTION SELECT EQ BASS VOL CONTROL PLAY OUT REC IN IC201 R P AMP 8V BIAS OSC R P HEAD TA SW DECK SW M TAPE MOTOR RESET TU SW 8V CD DOOR SW DISC PICKUP RF D SERVO IC901 MP3 DECODER 1M DRAM IC701 MCU LCD KEY R C IC301 POWER AMP L SPEAKER BOX R SPEAKER BOX AC IN RECTIFIER 5V Q411 P CON POWER SW Q401 D2061 8V Q902 IC902 SERVO DRIVER SPINDLE MOTOR SLED MOTOR 8V CD SW M M ...

Page 14: ...F DET MPX AM RF IF DET L SPEAKER R SPEAKER TU 5V REG IC301 POWER AMP AM OSC VOL IC501 SIGNAL SELECT SW DISC LCD M M CASS MOTOR RECTIFIER AC INPUT TRANSFORMER DC SUP SW Q401 TU SW TA SW KEY IC902 MCU IC901 DSP PICKUP M M SPINDLE MOTOR SLED MOTOR CD DOOR LEAF SW IC903 MOTOR ACTUATOR DRIVER Q902 CD SW ...

Page 15: ...501 0 1M 4 7U R503 R304 3 9K 18K R414 470 Q408 Q409 9014 8550 Q410 R415 10K 9014 R407 47K R416 5 6 1 4W ZD403 3V R427 1K C532 102 C516 C515 C517 1U 1U 1U 1U C527 C514 C513 272M 1U R512 1 2K R516 22K Q501 9014 C528 22U R422 2 2K Q414 9014 C526 500P R424 SHORT R426 1K R511 68K C512 C511 0 1M 0 1M R506 3 9K R305 18K C509 4 7U 22U C510 C519 100U C530 102 R504 15K R428 C412 68K 47U Q413 9014 D403 IN414...

Page 16: ...23 C722 C721 680P 680P 680P 100 100 100 R741 R742 R743 X701 32 768KHz C709 15P 15P C708 C711 22P C710 22P C702 102 R723 4 7M R724 680K X702 8MHz R706 R707 68K R708 R711 R750 4 7K 4 7K 4 7K 6 8K R705 56K 102 C704 C707 102 R751 R736 5 6K 390 R715 10K D702 IN4148 R717 100K Q702 9014 2 2UF C714 R714 47K Q703 9015 Q704 9015 R720 1K D705 IN4148 L701 100UH C715 102 C720 102 R716 47K C703 104 D701 IN4148 ...

Page 17: ...C932 104 R942 100 100 R943 C933 C934 330UF 104 X901 16 9344MHz C931 104 R936 150 C928 104 C929 1UF R934 22 C926 104 C927 104 EFMIN RFOUT LPF PHLPF AIN CIN BIN DIN FEC RFMON VEEF JITTC EIN FIN TEC TE TEIN LDD LDS AVSS AVDD FD0 TD0 SLD0 SPD0 VVSS1 PDOUT1 PDOUT0 PCKIST VVDD1 DMUTEB PUIN DEFECT FSEQ C2F DVDD DVSS DVDD1 8 VVDD3 VVSS3 LRSY DATACK DATA TEST1 STDATA STCK STREQ TEST0 CONT0 CONT1 CONT2 INTB...

Page 18: ...2M 15 R229 3K9 R225 3K9 R211 R210 5K6 27 C203 100U C208 222M C204 4U7 R208 6k8 C210 333M 9014 C217 7P R216 22K C207 4U7 R206 6K8 C212 102M C213 333M R205 5K6 R207 27 C215 1000U C214 104 R219 C206 100U 100 C226 7P SW201 6 A 1 2 3 C801 500P Q801 15K R804 9014 C219 103 T801 3630 C803 332M C225 223 C260 223 220U C805 10K R801 100 C804 C806 223M Q802 103M R803 8050 R802 5 6 R214 1 5K R220 10K R215 1 5K...

Page 19: ...C129 4U7 CF10210 7MA5 A R104 27K R111 150K T103 2070 CF105 450KHz C160 104 C114 223 R150 10K C102 C117 4U7 R107 100K R108 33K C93 102 R135 18K R134 18K C124 103 C123 103 C127 C128 104 104 TP11 R R109 27K TP12 L Q108 2SC3330U FMVT L 1 8 0 1V AMVT L 1 4 0 1V L 1 0 0 1V H 7 2 0 5V ALL H 7 2 0 5V XE UK H 7 2 0 5V CA KR AU 1 2 3 4 CN101 TU R GND TU L 8V TO AUDIO BOARD CN105 C92 102 C151 223 R144 10K C1...

Page 20: ...TOR LEAF SW CN1102 33K D300 IN4148 IN4148 R330 R300 R316 10K 10K D308 D309 100K 5 6K IN4148 IN4148 IN4148 IN4001 IN4148 D311 D314 D310 D301 5K6 5K6 5K6 8 2K 8 2K R371 R370 R312 R332 C318 C317 C323 100UF 100UF 47UF 120K 120K R379 500P 500P C373 C374 1 2K 1 2K R381 47UF 47UF C326 C371 DZ301 5 1V 330 R372 Q371 Q391 Q392 S8050 TO CN204 CN309 C327 0 01 4K7 4K7 R378 R398 9014 9014C C376 10K 3 2k R375 R3...

Page 21: ...F F SW702 F B SW704 SW706 REPEAT P P SW703 SW701 MEMORY STOP R706 2 7K Q702 9014 R702 1 5K 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 REM KEY02 KEY11 KEY12 KEY13 KEY14 COM1 COM2 COM3 SEG1 SEG2 SEG3 SEG4 SEG5 5V GND KEY01 S6 18PINS CN701 2 7K TO CN203 R703 CN702 LED701 ...

Page 22: ... 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 DEF1 4 2M PDO VVSS ISET VVDD FR VSS EFMO EFMIN TMDO CLV CLV HFL TES TOFF DRF RES XVDD XIN XOUT PMTSL1 CLOSE ROUT L RVSS L RVDD LOUT RW REMOTE MUTE DMUTE FSEO RANDOM KEY02 NC KEY01 KEYIN KEY11 PROG KEY12 DIG1 KEY13 DIG2 KEY14 NC VSS SEG1 COM1 SEG2 COM2 SEG3 COM3 SEG4 S1 SEG5 S2 SEG6 S3 SEG7 S4 SEG8 S5 NC S6 DOUT PUIN SLEO SLEO SLO PLK ...

Page 23: ...100U C205 C208 C211 C227 C261 C258 10U R202 R201 R204 R209 8K2 8K2 1 2 3 4 5 6 7 8 9 47P 100P R203 L201 15UH C226 7P R219 R205 R208 R229 5K6 100 C214 C206 C215 104 47K 1000U 100U C207 C212 C204 C203 C210 333M 333M 4U7 4U7 Q201 9014 102M C213 470K 47K 222M 222M 6k8 6K8 22K 27 3K9 GND GND 15 14 13 12 11 10 820 820 R265 R264 CN201 1 2 3 R225 R211 R210 R206 R216 R220 R221 R222 10U C220 10K 10K 10K R20...

Page 24: ...101 R102 R105 C102 1UF 1UF C101 C108 153M C107 153M 18K 100K 100K 18K SW102A 10 7M CF103 1 2 3 4 5 6 7 8 9 10 11 12 FM RFIN RF GND AM LOW MIX OUT VGC VCC AMIF IN FMIF IN GND TUN LED ST LED QUAD AM RFIN FMRF OUT RF VCC FM OSC AM OSC AFC DET OUT MPX IN LPF2 LPF1 L OUT R OUT 2111A FM ANT C127 473P 473P 102P C109 C117 C119 C120 0 47UF 22UF C121 C123 68P 5P CF102 10 7MHZ B C Rch Lch GND 8V TO CN201 CN1...

Page 25: ... M E M O ...

Page 26: ... No MB593 VPT Printed in Japan Victor company of Japn Limited Audio Video Systems category 10 1 1chome Ohwatari machi Maebashi city Gumma ken 371 8543 Japan ...

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