AV-32230
AV-32260
SPECIFIC SERVICE INSTRUCTIONS
DISASSEMBLY PROCEDURE
REMOVING THE REAR COVER
REMOVING THE SPEAKER
1. Unplug the power supply cord.
2. Remove the 11 screws marked A as shown in Fig.1.After removing the rear cover.
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3. Withdraw the REAR COVER toward you.1. Remove the 2 screws marked K as shown in Fig.1.
2. Withdraw the speaker backward.
[CAUTION]3. Follow the same steps when removing the other hand speaker.
When reinstalling the rear cover, carefully push it inward after in-
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serting the MAIN PWB into the rear cover groove.
CHECKING THE MAIN PW BOARD
1. To check the back side of the MAIN PW Board.
REMOVING THE CHASSIS1) Pull out the chassis. (Refer to REMOVING THE CHASSIS).
YAfter removing the rear cover.2) Erect the chassis vertically so that you can easily check the back
1. Slightly raise the both sides of the chassis by hand and remove theside of the MAIN PW Board.
3 claws marked B under the chassis from the front cabinet as
shown in Fig.1.[CAUTION]
2. Withdraw the chassis backward along the rail in the arrow directionWhen erecting the chassis, be careful so that there will be no con-
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marked C as shown in Fig.1.tacting with other PW Board.
Before turning on power, make sure that the CRT earth wire and
(If necessary, take off the wire clamp, connectorOs etc.)Y
other connectors are properly connected.
When conducting a check with power supplied, be sure to confirm
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that the CRT earth wire is connected to the CRT SOCKET PWB
and the MAIN PWB.
WIRE CLAMPING AND CABLE TYING
1. Be sure clamp the wire.
2. Never remove the cable tie used for tying the wires together.
REMOVING THE TERMINAL BOARD
Should it be inadvertently removed, be sure to tie the wires with a
After removing the rear cover.
Ynew cable tie.
1. Remove the 4 screws marked D as shown in Fig.1.
2. When you pull out the TERMINAL BOARD in the direction of arrow
marked E as shown in Fig.1, it can be removed.
REMOVING THE FRONT CONTROL AND FRONT AV
INPUT PW BOARDS
After removing the rear cover and chassis.
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1. Remove the 2 screws marked F and the 2 screws marked G as
shown in Fig.1.
2. Then remove the FRONT CONTROL PWB and FRONT AV INPUT
PWB.
(If necessary, take off the wire, connectorOs etc.)
REMOVING THE LF PW BOARD
After removing the rear cover and chassis.
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1. Lift the left side of the LF PWB while pressing the 2 PWB stoppers
marked H in the arrow direction marked J as shown in Fig.1.
2. Then remove the LF PWB.
(If necessary, take off the wire, connectorOs etc.)
8No. 51802 |
ACEC
