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Specific Service Instructions - JVC AV-28WFR1EKS Service Manual

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AV-29RX

SPECIFIC SERVICE INSTRUCTIONS

DISASSEMBLY PROCEDURE
REMOVING THE REAR COVER
1. Disconnect the power plug from wall outlet.
2. As shown in the Fig.2, remove the
3. Withdraw the rear cover toward you.
REMOVING THE AV TERMINAL BOARD
" After removing the REAR COVER.
1. As shown in Fig.2, remove the
2. Then remove the AV TERMINAL BOARD.
REMOVING THE CHASSIS
" After removing the REAR COVER and AV TERMINAL BOARD.
1. Slightly raise the both sides of the chassis by hand and remove the
2
claws under the both sides of the chassis from the front cabinet.
2. Withdraw the chassis backward.
(If necessary, take off the wire clamp, connectors etc.)
REMOVING THE SPEAKER BOX
" After removing the REAR COVER.
1. As shown in Fig. 2, removing the
remove the speaker box.
2. Follow the same steps when removing the other hand speaker
box.
NOTE : When removing the screws marked
remove the lower side screw first, and then remove the
upper one.
REMOVING THE CONTROL BASE
" After removing the chassis.
1. As shown in Fig.1, while pushing down the claws marked
remove the CONTROL BASE in the arrow direction
6
A
A
A
A
16
screws marked
.
B
B
B
B
5
screws marked
.
C ,
C
C
C
2
screws marked
then
C
C
C
C
of the speaker box,
D
D
D
D
E
E
E
E
.
CHECKING THE PW BOARD
To check the PW Board from back side.
1. Pull out the chassis (refer to REMOVING THE CHASSIS).
2. Erect the chassis vertically so that you can easily check the back
side of the PW Board.
CAUTION
" When erecting the chassis, be careful so that there will be no
contacting with other PW Board.
" Before turning on power, make sure that the wire connector is
properly connected.
" When conducting a check with power supplied, be sure to
confirm that the CRT EARTH WIRE (BRAIDED ASS' ' ' ' Y) is
connected to the CRT SOCKET PW board.
WIRE CLAMPING AND CABLE TYING
1. Be sure to clamp the wire.
2. Never remove the cable tie used for tying the wires together.
Should it be inadvertently removed, be sure to tie the wires with a
new cable tie.
F
F
F
F
,
CHASSIS
No.51729
CONTROL BASE
E
E
E
E
CLAW
Fig. 1

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