Specific Service Instructions; Disassembly Procedure - JVC AV-21E3 Service Manual

AV-21E3

SPECIFIC SERVICE INSTRUCTIONS

DISASSEMBLY PROCEDURE

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 c ord from the
rear c over.
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 of MAIN PW Board.
2. Withdraw the MAIN PW Board backward.
(If necess ary, take off the wire clamp, c onnectors 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 vertic ally so that you can easily check the
back side of the PW Board.
[CAUTION]
" When erecting the PW Board, be careful s o 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 c onnected.
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 cable tie.
6
! ! ! !
5
screws marked and a
# # # #
.
2
$ $ $ $
screws marked .
No. 52028