AV28T25EKS
AV28T25EKB
AV28T55EKS
AV28T25EIS
SPECIFIC SERVICE INSTRUCTIONS
DISASSEMBLY PROCEDURE
REMOVING THE REAR COVERREMOVING THE SPEAKER
" After removing the rear cover.
1. Unplug the power cord.
1. Remove the 2 screws marked D, and remove the speaker holder
2. Remove the 13 screws marked A as shown in the Fig. 1.
3. Withdraw the rear cover toward you.as shown in Fig. 1.
NOTE : When removing the screws marked D of the speaker
remove the lower side screw first, and then remove the
REMOVING THE SIDE CONTROL JACK ASSEMBLYupper one.
" After removing the rear cover.2. Remove the 2 screws E attaching the speaker.
1. Remove the screw marked B as shown in the Fig.1.3. Follow the same steps when removing the other hand speaker.
2. While slightly raise the side control jack assembly, remove the 2
claws under the side control jack assembly.
REMOVING THE AV TERMINAL BOARD
3. Disconnect the connector ?SR?, ?SL?, ?S?, ?F? and ?CN016? as
" After removing the rear cover.
shown in Fig 2.1. Remove the 3 screws marked F as shown in the Fig. 1.
2. Remove the 2 claws marked G under the CHASSIS as shown in
REMOVING THE SIDE CONTROL PWBFig. 3.
" After removing the rear cover and side control jack assembly.3. Remove the AV TERMINAL BOARD slightly in the direction of
1. Remove the 3 claws C from back side of the side control jackarrow X as shown in Fig. 3.
assembly as shown in Fig.2.
2. Pull out the SIDE CONTROL PW B.CHECKING THE PW BOARD
To check the back side of the PW Board.
REMOVING THE CHASSIS1) Pull out the chassis. (Refer to REMOVING THE CHASSIS).
" After removing the rear cover.2) Erect the chassis vertically so that you can easily check the
1. Slightly raise the both sides of the chassis by hand and removeback side of the PW Board.
the two claws under the both sides of the chassis from the front
cabinet.[CAUTION]
2. Withdraw the chassis backward." When erecting the chassis, be careful so that there will be no
(If necessary, take off the wire clamp, connectors etc.)contacting with other PW Board.
" Before turning on power, make sure that the wire connector is
properly connected.
REMOVING THE POWER & DEF. PWB
" After removing the CHASSIS." When conducting a check with power supplied, be sure to confirm
that the CRT EARTH WIRE (BRAIDED ASS?Y) is connected to
1. Remove the 3 screws marked H as shown in the Fig.1.
2. Remove the POWER & DEF. PWB up ward.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.
AV SW PWB
X
Connector
AV TERMINAL
SRC
BOARD
SL
SIDE
S
CONTROL
PWB
FG
CN016C
(Back view)G
Fig. 2Fig. 3
6No.51942 |
ACEC
