JVC AV-29BF11ENS Service Manual page 6

AV-29BF11ENS
AV-29BF11EPS
AV-29BF11EES
SPECIFIC SERVICE INSTRUCTIONS
DISASSEMBLY PROCEDURE
REMOVING THE REAR COVER
1. Remove the 8 screws marked A.
2. Remove the 4 screws marked B.
3. Withdraw the rear cover toward you.
REMOVING THE MAIN PWB
" Removing the rear cover.
1. Slightly raise the both sides of the chassis by hand and withdraw
MAIN PWB back ward.
[CAUTIONS]
If necessary, take off the wire clamp, connectors etc.
Be careful enough when developing a main chassis.
REMOVING THE FRONT AV & HEADPHONE
BOARD ASS'Y
" Removing the rear cover.
" Removing the MAIN PWB.
1. Remove the 2 screws marked C, and remove the FRONT AV &
HEADPHONE BOARD ASS'Y.
REMOVING THE FRONT CONTROL PWB
" Removing the rear cover.
" Removing the MAIN PWB.
1. Remove the 3 screws marked D, and remove the FRONT
CONTROL PWB.
REMOVING THE WOOFER and TWEETER
" Removing the rear cover.
1. Remove the 4 screws marked E, and remove the WOOFER.
2. Remove the 2 screws marked F, and remove the TWEETER.
3. Remove an opposite side similarly.
REMOVING THE MAIN SWITCH
" Removing the rear cover.
" Removeing MAIN PWB.
1. Remove the 2 screws marked G, and remove the MAIN
SWITCH.
6
CHECKING THE PW BOARD
To check the back side of the PW Board.
1) Pull out the PW Board. (Refer to REMOVING THE MAIN
PWB).
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 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.
No.52084