JVC AV-21Q3/D Schematic Diagrams page 18

AV-21Q3
AV-21QMG3
AV-2115EE
SPECIFIC SERVICE INSTRUCTIONS
REMOVING THE REAR COVER
1. Unplug the power plug.
2. As shown in figure, remove the
" "
" "
screw marked and a screw marked
3. Remove the back board and remove the power cord from the
rear cover.
4. Withdraw the rear cover toward you.
REMOVING THE MAIN PW BOARD
" After removing the rear cover.
1. Slightly raise the both sides of the MAIN PW BOARD by hand
and remove the PWB stopper marked
bottom.
2. Withdraw the MAIN PW BOARD backward.
(If necessary, take off the wire clamp, connectors etc.)
REMOVING THE SPEAKER
" After removing the rear cover.
1. As shown in figure, remove the
CHECKING THE MAIN PW BOARD
1. To check the back side of the PW Board.
1) Pull out the MAIN PW Board. (Refer to REMOVING THE MAIN
PW Board)
2) Erect the PW Board vertically so that you can easily check the
back side of the PW Board.
[CAUTION]
" When erecting the PW Board, be careful so that there will be no
contacting with other PW Board.
" Before turning on power, make sure that the CRT earth wire and
other connector 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.
8
5 ! !
! !
screws marked and a
# #
# #
.
$ $ $ $
from the cabinet
2
% % % %
screws marked .
No. 52027