JVC AV21D73/VT
Service Manual

AV-21D73 AV-16N73

SPECIFIC SERVICE INSTRUCTIONS
DISASSEMBLY PROCEDURE
REMOVING THE REAR COVER
1. Unplug the power plug. 2. As shown in figure, remove the

7

screws marked

!

and a

screw marked " . 3. Withdraw the rear cover toward you.

REMOVING THE MAIN PW BOARD
" After removing the rear cover. 1. Slightly raise the both sides of the MAIN PW BOARD by hand. 2. Withdraw the MAIN PW BOARD backward. (If necessary, take off the wire clamp, connectors etc.)

REMOVING THE SPEAKER
" After removing the rear cover. 1. As shown in figure, remove the 4 screws marked # . 2. Follow the same steps when removing the other hand speaker.

CHECKING THE MAIN PW BOARD
1. To check the back side of the PW Board. 1) Pull out the MAIN PW Board. (Refer to REMOVING THE MAIN PW Board) 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 CRT earth wire and other connector are properly connected.

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.

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No. 52037