JVC PD-50X795 Service Manual page 23

3.3 DISASSEMBLY PROCEDURE [RECEIVER UNIT]
NOTE:
• 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.
3.3.1 REMOVING THE TOP COVER
(1) Remove the 9 screws [A] then remove the TOP COVER.
3.3.2 REMOVING THE FRONT PANEL
• Remove the TOP COVER.
(1) Remove the 1 screw [B] and the 1 screw [C].
(2) Remove the 3 claws [D] and the 2 claws [E].
(3) Remove the FRONT PANEL toward you.
3.3.3 REMOVING THE FRONT CONTROL PWB
• Remove the TOP COVER.
• Remove the FRONT PANEL.
(1) Remove the [CN800F]
PWB.
(2) Remove the 4 screws [F], then remove the FRONT
CONTROL PWB.
3.3.4 REMOVING THE REAR COVER
• Remove the TOP COVER.
(1) Remove the 12 screws [G], the 2 nats [H], the 2 washers
[J], the 2 screws [K], the 2 screws [L], the 2 screws [M]
and the 1 screw [N].
(2) Remove the REAR COVER toward you.
3.3.5 REMOVING THE COOLING FAN
• Remove the TOP COVER.
(1) Remove the [CN00Q]
PWB.
(2) Remove the 2 screws [O], then remove the FAN
BRACKET.
(3) Remove the 1 screw [P], then remove the COOLING FAN.
3.3.6 REMOVING THE ATSC TUNER MODULE
• Remove the TOP COVER.
• Remove the REAR COVER.
(1) Remove the [CN1302]
the ATSC TUNER MODULE.
(2) Remove the 5 screws [Q], then remove the ATSC TUNER
MODULE.
3.3.7 REMOVING THE SD CARD PWB
• Remove the TOP COVER.
• Remove the FRONT PANEL.
• Remove the COOLING FAN.
(1) Remove the [CN1001]
(2) Remove the 3 screws [R], then remove the SD CARD
PWB.
3.3.8 REMOVING THE RECEIVER PWB
• Remove the TOP COVER.
• Remove the REAR COVER.
(1) Remove the [CN00A]
RECEIVER PWB.
(2) Remove the RECEIVER PWB.
connector on the ANALOG SIGNAL
connector on the SYSTEM POWER
/ [CN1502] / [CN9601] connector on
connectors on the SD CARD PWB.
/ [CN00T] connectors on the
3.3.9 REMOVING THE REAR JACK PWB
• Remove the TOP COVER.
• Remove the REAR COVER.
(1) Remove the [CNJ0J1]
ANLOG SIGNAL PWB.
(2) Remove the 2 screws [S], then remove the REAR JACK
PWB.
3.3.10 REMOVING THE DIGITAL SIGNAL PWB
• Remove the TOP COVER.
• Remove the REAR COVER.
• Remove the ATSC TUNER UNIT.
(1) Remove the [CN001] /
SIGNAL PWB.
(2) Remove the [CN003]
PWB.
(3) Remove the 4 screws [T], then remove the DIGITAL
HOLDER.
(4) Remove the 3 screws [U], then remove the DIGITAL
SIGNAL PWB.
3.3.11 REMOVING THE REGULATOR PWB
• Remove the TOP COVER.
• Remove the FRONT PANEL.
• Remove the COOLING FAN.
• Remove the SD CARD2 PWB.
(1) Remove the [CN003] /
REGULATOR PWB.
(2) Remove the 4 screws [V], then remove the REGULATOR
PWB.
3.3.12 REMOVING THE SYSTEM POWER PWB
• Remove the TOP COVER.
(1) Remove the [CN00G]
PWB.
(2) Remove the [CN008]
PWB.
(3) Remove the [CN9601] connector on the ATSC TUNER
UNIT.
(4) Remove the [CN00Q]
TEM POWER PWB.
(5) Remove the 7 screws [W], then remove the SYSTEM
POWER PWB.
3.3.13 REMOVING THE ANALOG SIGNAL PWB
• Remove the TOP COVER.
• Remove the REAR COVER.
• Remove the RECEIVER PWB.
(1) Remove the [CN001]
[CN00G] / [CNJ0J1] / [CNJ0J2] connector on the ANALOG
SIGNAL PWB.
(2) Remove the 2 screws [X], then remove the ANALOG
SIGNAL PWB.
/ [CNJ0J2] connectors on the
[CN002] connectors on the ANLOG
connector on the REGULATOR
[CN008] / [CN00D] connector on the
connector on the ANLOG SIGNAL
connector on the REGULATOR
/ [CN0PW] connector on the SYS-
/ [CN002] / [CN00D] / [CN00F]
(No.YA100)1-23
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