JVC PD-Z50DX4, Руководство по обслуживанию

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1-16 (No.YA229)
3.2 DISASSEMBLY PROCEDURE (RECEIVER UNIT)
CAUTION AT DISASSEMBLY:
• Be sure to perform the SYSTEM SETTING on the page 1-6, at the end of the procedure.
• Make sure that the power cord is disconnected from the outlet.
• Pay special attention not to break or damage the parts.
• When removing each board, remove the connectors as required. Taking notes of the connecting points (connector numbers)
makes service procedure manageable.
• Make sure that there is no bent or stain on the connectors before inserting, and firmly insert the connectors.
3.2.1 REMOVING THE TOP COVER
(1) Remove the 9 screws [A] then remove the TOP COVER.
3.2.2 REMOVING THE FRONT PANEL
• Remove the TOP COVER.
(1) Remove the 3 screws [B] and the 1 screw [C] .
(2) Remove the 3 claws [D] and the 2 claws [E] .
(3) Remove the FRONT PANEL toward you.
3.2.3 REMOVING THE FRONT CONTROL PWB
• Remove the TOP COVER.
• Remove the FRONT PANEL.
(1) Remove the [CN00F] connector on the ANALOG SIGNAL
PWB.
(2) Remove the 4 screws [F] , then remove the FRONT
CONTROL PWB.
3.2.4 REMOVING THE REAR COVER
• Remove the TOP COVER.
(1) Remove the 10 screws [G] , the 2 screws [K] , the 2 screws
[L] , the 2 screws [M] and 1 screw [N] .
(2) Remove the REAR COVER toward you.
3.2.5 REMOVING THE RECEIVER PWB
• Remove the TOP COVER.
• Remove the REAR COVER.
(1) Remove the [CN00A] / [CN00T] connectors on the
RECEIVER PWB.
(2) Remove the RECEIVER PWB.
3.2.6 REMOVING THE REAR JACK PWB
• Remove the TOP COVER.
• Remove the REAR COVER.
(1) Remove the [CNJ0J1] / [CNJ0J2] connectors on the
ANLOG SIGNAL PWB.
(2) Remove the 2 screws [S] , then remove the REAR JACK
PWB.
3.2.7 REMOVING THE DIGITAL SIGNAL PWB
• Remove the TOP COVER.
• Remove the REAR COVER.
(1) Remove the [CN001] / [CN002] connectors on the ANLOG
SIGNAL PWB.
(2) Remove the [CN003] connector on the REGULATOR
PWB.
(3) Remove the 4 screws [T] , then remove the TUNER
HOLDER.
(4) Remove the 4 screws [U] , then remove the DIGITAL
SIGNAL PWB.
CAUTION:
Make sure to perform the "SYSTEM SETTING" on page 1-6,
when DIGITAL SIGNAL PWB is replaced.
3.2.8 REMOVING THE REGULATOR PWB
• Remove the TOP COVER.
• Remove the FRONT PANEL.
(1) Remove the [CN00D] connector on the ANLOG SIGNAL
PWB.
(2) Remove the [CN003] and [CN00B] connector on the
REGULATOR PWB.
(3) Remove the 4 screws [V] , then remove the REGULATOR
PWB.
3.2.9 REMOVING THE SYSTEM POWER PWB
• Remove the TOP COVER.
(1) Remove the [CN00G] / [CN00K] connector on the ANLOG
SIGNAL PWB.
(2) Remove the [CN00B] connector on the REGULATOR
PWB.
(3) Remove the [CN00Q] / [CN0PW] connector on the
SYSTEM POWER PWB.
(4) Remove the 7 screws [W] , then remove the SYSTEM
POWER PWB.
3.2.10 REMOVING THE ANLOG SYGNAL PWB
• Remove the TOP COVER.
• Remove the REAR COVER.
• Remove the RECEIVER PWB.
(1) Remove the [CN001] / [CN002 ] / [CN00D] / [CN00F] /
[CN00G] / [CN00K] / [CNJ0J1] / [CNJ0J2] connector on the
ANLOG SIGNAL PWB.
(2) Remove the 2 screws [X] , then remove the ANLOG
SYGNAL PWB.