JVC AV-27D201 Service Manual page 6

AV-27D201
AV-32D201
SPECIFIC SERVICE INSTRUCTIONS
DISASSEMBLY PROCEDURE
REMOVE THE REAR COVER
" Unplug the power cord plug.
12
1. Remove the screws marked
2. Remove the rear cover toward you.

When reinstalling the rear cover, carefully push it inward after
inserting the chassis into the rear cover groove.
REMOVING THE CHASSIS
" After removing the rear cover.
1. Slightly raise the both sides of the chassis by hand and remove
2
the claws under the both sides of the chassis from the front
cabinet.
2. As shown in the Fig.2, withdraw the chassis backward along the
rail in the arrow direction marked
(If necessary, take off the wire clamp, connector's etc.)

When conducting a check with power supplied, be sure to
confirm that the CRT earth wire is connected to the CRT
SOCKET PWB and the MAIN PWB.
REMOVING THE TERMINAL BOARD
" After removing the rear cover.
1. As shown in Fig.2, remove the
2. As shown in Fig.1, after removing the claw marked
direction of arrow mark.
3. When you pull out the TERMINAL BOARD in the direction of
E E
E E
arrow marked as shown in Fig.1, it can be removed.
4. Thus the connector should be securely inserted when the
TERMINAL BOARD is installed again.
REMOVING THE FRONT CONTROL PW BOARD
" After removing the rear cover and chassis.
1. As shown in Fig.2, remove the
2. Then remove the FRONT CONTROL PWB.
REMOVING THE FRONT AV IN PW BOARD
" After removing the rear cover and chassis.
1. As shown in Fig.2, remove the
2. Then remove the FRONT AV IN PWB.
6
A A
A A
as shown in Fig.2.
B B B B
.
C C C C
4
screws marked .
D D D D
in the
F . F
F F
3
screws marked
G . G G G
2
screws marked
REMOVING THE SPEAKER
" After removing the rear cover and chassis.
1. As shown in Fig.2, remove the
2. Follow the same steps when removing the other hand speaker.
CHECKING THE MAIN PW BOARD
1. To check the backside of the MAIN PW Board.
(1) Pull out the chassis. (Refer to REMOVING THE CHASSIS).
(2) Erect the chassis vertically so that you can easily check the
backside of the MAIN PW Board.
[CAUTION]
When erecting the chassis, be careful so that there will be no
•
contacting with other PWB.
• Before turning on power, make sure that the CRT earth wire and
other connectors are properly connected.
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.
TERMINAL BOARD
E
D
No. 51686
H H H H
4
screws marked .
Fig. 1