JVC RX-8030VBK Service Manual Download Page 15 | Manualshive

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(No.MB103)1-15

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Summary of Contents for RX-8030VBK

Page 1: ... 5 4 ADJUSTMENT 1 13 5 TROUBLESHOOTING 1 14 MASTER VOLUME PUSH OPEN SUBWOOFER OUT ON OFF SPEAKERS ON OFF PHONES 1 STANDBY RX 8030V AUDIO VIDEO CONTROL RECEIVER CC CONVERTER ANALOG DIRECT 2 STANDBY ON TV SOUND DBS VIDEO VCR 2 VCR 1 DVD DVD MULTI AM FM TAPE MD CDR CD PHONO SETTING ADJUST QUICK SPEAKER SETUP EXIT SURROUND DSP SURROUND DSP OFF 2 3 1 5 6 4 8 9 7 P 0 10 A V CONTROL RECEIVER 10 0 Area Su...

Page 2: ...B DVD IN VCR 1 IN VCR 2 IN TV SOUND DBS IN VIDEO 87 dB 67 dB CD IN CDR IN TAPE MD IN 87 dB 67 dB Frequency Response 8 Ω PHONO IN 20 Hz to 20 kHz 1 dB DVD IN VCR 1 IN VCR 2 IN TV SOUND DBS IN VIDEO 20 Hz to 100 kHz 1 dB 3 dB CD IN CDR IN TAPE MD IN 20 Hz to 100 kHz 1 dB 3 dB RIAA Phono Equalization 1 dB 20 Hz to 20 kHz Equalization 5 bands 63 Hz 250 Hz 1 kHz 4 kHz 16 kHz 8 dB Bass boost 6 dB 1 dB a...

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: ...1 4 No MB103 SECTION 2 SPECIFIC SERVICE INSTRUCTIONS This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS ...

Page 5: ...procedures remove the top cover and rear panel 1 From the top side of the main body remove the two plastic rivets in the direction of the arrow 1 and remove the stop per boards in the direction of the arrow 2 2 Remove the tie bands bundling the wires 3 Disconnect the wire from the connector CN722 on the cen ter board 4 Disconnect the wire from the connector CN714 on the front board L 5 Disconnect ...

Page 6: ...N402 on the power supply board See Fig 4 7 Disconnect the card wire from connector CN400 on the mi con board See Fig 4 8 Remove the tie band and wire protection board fixing the card wire See Fig 4 9 Remove the three screws F and screw G attaching the front panel assembly See Fig 4 REFERENCE When attaching the screw G attach the earth wire with it 10 From the bottom side of the main body remove th...

Page 7: ...on the S Video board 11 Disconnect the S Video board from the connector CN241 on the micon board and take out the S Video board Fig 6 3 6 Removing the micon board See Fig 7 Prior to performing the following procedures remove the top cover rear panel I O board tuner DSP board Audio board Audio2 board Video board and S Video board 1 From the top side of the main body disconnect the card wire from th...

Page 8: ...n the pow er transformer board 1 4 Disconnect the relay board from the connector CN71 CN81 on the power supply board and micon board 5 Disconnect the parallel wire from the connectors CN831 CN881 on the main board 6 Disconnect the wire from the connectors CN723 CN813 CN814 on the main board 7 Disconnect the wire from the connector CN722 on the cen ter board 8 Disconnect the wire from the connector...

Page 9: ...From the reverse side of the main board remove the two screws P attaching the main board to the heat sink See Fig 10 2 Disconnect the connectors CN701 to CN706 on the main board remove the main board See Fig 10 3 Remove the two screws Q attaching the center board See Fig 12 4 Remove the two screws Q attaching the front board L See Fig 12 5 emove the two screws Q attaching the surround back board S...

Page 10: ...emove the solders from the soldered sections b on the power transformer board 2 4 Remove the four screws S attaching the power transform er 3 13 Removing the power fuse board See Fig 15 Prior to performing the following procedures remove the top cover 1 From the back side and top side of the main body remove the tie band from the bundling the wires and the power cord 2 Remove the screws T and scre...

Page 11: ... the headphone bracket to the front bracket See Fig 17 3 Remove the three screws V attaching the power supply board See Fig 16 4 Take out the headphone jack board from the inside of the chassis base while lifting the power supply board Fig 16 Fig 17 3 16 Removing the switch board See Fig 18 Prior to performing the following procedures remove the top cover rear panel I O board and front panel assem...

Page 12: ...embly in the direction of the arrow 1 See Fig 20 4 Remove the sub panel assembly while releasing the claws h in the direction of the arrow 2 See Fig 20 and 21 5 From the front side of the front panel assembly disconnect the wire from the connector CN412 on the front key sys tem control board and take out the front video board See Fig 22 6 Remove the claws i attaching the front key system con trol ...

Page 13: ... fully counterclockwise to warm up before adjustment If the heat sink is already warm from previous use the correct adjustment can not be made 4 For L ch connect a DC voltmeter between B2204 and B2205 Lch and connect it between B2213 and B2214 Rch 5 30 minutes later after power on adjust VR787 for Lch or VR788 for Rch so that the DC voltmeter value has 1mV to 10mV It is not abnormal though the idl...

Page 14: ...ply voltage at the A D input port pins 2 to 5 and 7 is monitored and when an error is detected continuously for 1 second the unit immediately enters the standby mode When the power is switched on again the unit is turned on in the same abnormal status as before The supply voltage error detection is not performed for 4 seconds after power on The following table shows the error detection thresholds ...

Page 15: ... No MB103 1 15 ...

Page 16: ... No MB103 AV MULTIMEDIA COMPANY AUDIO VIDEO SYSTEMS CATEGORY 10 1 1chome Ohwatari machi Maebashi city 371 8543 Japan VICTOR COMPANY OF JAPAN LIMITED WPC Printed in Japan ...

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