AV-27F802
SPECIFIC SERVICE INSTRUCTIONS
DISASSEMBLY PROCEDURE
REMOVING THE REAR COVERREMOVING THE DAF PW BOARD
1. Unplug the power supply cord.YAfter removing the rear cover and chassis.
1. Lift the right side of the DAF PWB while pressing the PWB stopper
2. Remove the 12 screws marked A as shown in Fig.1.
marked J and claw marked K in the arrow direction marked L as
3. Withdraw the REAR COVER toward you.
shown in Fig.1.
[CAUTION]2. Then remove the DAF PWB.
When reinstalling the rear cover, carefully push it inward after in-(If necessary, take off the wire, connectorOs etc.)
Y
serting the MAIN PWB into the rear cover groove.
REMOVING THE SPEAKER
REMOVING THE CHASSISYAfter removing the rear cover.
1. Remove the 4 screws marked M as shown in Fig.1.
YAfter removing the rear cover.2. Withdraw the speaker backward.
1. Slightly raise the both sides of the chassis by hand and remove the
3. Follow the same steps when removing the other hand speaker.
3 claws marked B under the chassis from the front cabinet as
shown in Fig.1.
2. Withdraw the chassis backward along the rail in the arrow direction
marked C as shown in Fig.1.
CHECKING THE MAIN PW BOARD
(If necessary, take off the wire clamp, connectorOs etc.)
1. To check the back side of the MAIN PW Board.
When conducting a check with power supplied, be sure to confirm
*1) Pull out the chassis. (Refer to REMOVING THE CHASSIS).
that the CRT earth wire is connected to the CRT SOCKET PWB2) Erect the chassis vertically so that you can easily check the back
and the MAIN PWB.side of the MAIN PW Board.
[CAUTION]
YWhen erecting the chassis, be careful so that there will be no con-
REMOVING THE TERMINAL BOARDtacting with other PW Board.
After removing the rear cover.Before turning on power, make sure that the CRT earth wire and
YY
1. Remove the 6 screws marked D as shown in Fig.1.other connectors are properly connected.
2. When you pull out the TERMINAL BOARD in the direction of arrow
marked E as shown in Fig.1, it can be removed.
WIRE CLAMPING AND CABLE TYING
1. Be sure clamp the wire.
REMOVING THE FRONT AND POWER SW PW BOARDS2. Never remove the cable tie used for tying the wires together.
After removing the rear cover and chassis.Should it be inadvertently removed, be sure to tie the wires with a
Y
1. Remove the 4 screws marked F as shown in Fig.1.new cable tie.
2. Then remove the FRONT PWB and POWER SW PWB.
(If necessary, take off the wire, connectorOs etc.)
REMOVING THE LF PW BOARD
YAfter removing the rear cover and chassis.
1. Lift the left side of the LF PWB while pressing the 2 PWB stoppers
marked G in the arrow direction marked H as shown in Fig.1.
2. Then remove the LF PWB.
(If necessary, take off the wire, connectorOs etc.)
6No. 51785 |
ACEC
