Specific Service Instructions - JVC AV32T25EKS Service Manual

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AV32T25EKS
AV32T55EKS
AV32T25EIS

SPECIFIC SERVICE INSTRUCTIONS

AV32T25EKS / AV32T55EKS / AV32T25EIS
DISASSEMBLY PROCEDURE
REMOVING THE REAR COVER
1. Unplug the power c ord.
2. Remove the 13 screws marked A as s hown in the Fig. 1.
3. Withdraw the rear cover toward you.
REMOVING THE SIDE CONTROL JACK ASSEMBLY
" After removing the rear cover.
1. Remove the screw marked B as shown in the Fig.1.
2. While slightly raise the side c ontrol jack assembly, remove the 2
claws under the side control jac k assembly.
3. Disc onnect the c onnector "SR ", "SL", "S", "F" and "CN016" as
shown in Fig 2.
REMOVING THE SIDE CONTROL PWB
" After removing the rear cover and side control jac k ass embly.
1. Remove the 3 claws C from back side of the side control jack
assembly as s hown in Fig.2.
2. Pull out the SIDE CONTROL PWB.
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 POWER & DEF. PWB
" After removing the CHASSIS.
1. Remove the 3 screws marked D as shown in the Fig.1.
2. Remove the POWER & DEF. PWB upper.
(If necess ary, take off the wire c lamp, connectors , etc.)
Connector
SR
SL
S
F
CN016
6
C
SIDE
CONT ROL
PWB
C
(Back view)
Fig. 2
No.51968
Global electronic heritage manuals
REMOVING THE SPEAKER
" After removing the rear cover.
1. Remove the 2 screws marked E, and remove the speaker holder
as s hown in Fig. 1.
NOTE : When removing the screws marked E of the speaker holder
remove the lower side screw first, and then remove the
upper one.
2. Remove the 2 screws F attaching the speaker.
3. Follow the s ame steps when removing the other hand speaker.
REMOVING THE AV TERMINAL BOARD
" After removing the rear cover.
1. Remove the 3 screws marked G as shown in the Fig. 1.
2. Remove the 2 claws marked H under the CHASSIS as shown in
Fig. 3.
3. Remove the AV TERMINAL BOARD slightly in the direction of
arrow I as shown in Fig. 3.
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.
I
AV TERMINAL
BOARD
H
Fig. 3
AV SW PWB
H
26/1/2014