Specific Service Instructions - JVC AV28CH1EUS Service Manual

AV28CH1EUS
AV28CH1EUB

SPECIFIC SERVICE INSTRUCTIONS

DISASSEMBLY PROCEDURE
REMOVING THE REAR COVER
1. Unplug the power c ord.
2. Remove the 14 screws marked
3. Withdraw the rear cover toward you.
REMOVING THE CHASSIS
" After removing the rear cover.
1. Slightly raise the both sides of the c hassis by hand and remove
the two claws under the both sides of the chassis from the front
cabinet.
2. Withdraw the chass is backward.
(If necess ary, take off the wire clamp, connectors etc.)
REMOVING THE AV TERMINAL BOARD
" After removing the rear cover.
1. Remove the 2 screws marked
2. Remove the claws marked
Fig. 2.
3. Slightly in the direction of arrow
REMOVING THE SPEAKER
" After removing the rear cover.
1. Remove the 2 screws marked
2. Follow the s ame 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 c hassis vertically so that you c an easily check the
back side of the PW Board.
[CAUTION]
" When erec ting the chassis, be careful s o that there will be no
contacting with other PW Board.
" Before turning on power, make sure that the wire connector is
properly connec ted.
" When conducting a check with power supplied, be sure to c onfirm
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 c able tie used for tying the wires together.
Should it be inadvertently removed, be sure to tie the wires with
a new c able tie.
6
! !
! !
as shown in the Fig. 1.
" " " "
as shown in the Fig. 1.
# #
# #
under the CHASSIS as shown in
$ $
$ $
as shown in Fig. 2.
% %
% %
as shown in Fig. 1.
AV TERMINAL
BOARD
No.51944
D
C
AV SEL PWB
C
Fig. 2