JVC AV28X10EIS, Service Manual

Page: 8 / 74

No.51780
AV32X10EUS
AV28X10EUS
AV28X10EKS
AV28X10EIS
8
SPECIFIC SERVICE INSTRUCTIONS
DISASSEMBLY PROCEDURE
REMOVING THE REAR COVER
1. Unplug the power cord.
2. [32inch]
Remove the 13 screws marked
! ! ! !
as shown in the Fig. 1.
[28inch]
Remove the 12 screws marked
! ! ! !
as shown in the Fig. 1.
3. Withdraw the rear cover toward you.
REMOVING THE AV TERMINAL BOARD
"
After removing the rear cover.
1. Remove the 3 screws marked
"
" "
"
as shown in the Fig. 1.
2. Remove the 2 claws marked
# # # #
under the CHASSIS as shown
in Fig. 2.
3. Remove the AV TERMINAL BOARD slightly in the direction of
arrow
$ $ $ $
as shown in Fig. 2.
REMOVING THE CHASSIS
"
After removing the rear cover.
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
"
After removing the rear cover.
1. Remove the 2 screws marked
% % % %
as shown in Fig. 1.
NOTE
: When removing the screws marked
% % % %
of the speaker
remove the lower side screw first, and then remove the
upper one.
2. Remove the 2 screws
& & & &
attaching the speaker.
3. Follow the same steps when removing the other hand speaker.
CHECKING THE PW BOARD
To check the back side of the PW Board.
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.
Fig. 2
AV SW PWB
E
F
AV TERMINAL
BOARD
E