JVC AV-21KJ1SPFB
Service Manual

SECTION 3 DISASSEMBLY
3.1 3.1.1 (1) (2) (3) DISASSEMBLY PROCEDURE REMOVING THE REAR COVER Unplug the power cord. Remove the 7 screws [A] as shown in the Fig. 1. Withdraw the REAR COVER toward you. 3.1.6 CHECKING THE PW BOARD � To check the back side of the PW Board. (1) Pull out the PW Board. (Refer to REMOVING THE MAIN PWB). (2) Erect the PW Board vertically so that you can easily check the back side of the PW Board.

3.1.2 REMOVING THE MAIN PWB � Remove the REAR COVER. (1) Slightly raise the both sides of the chassis by hand and withdraw the MAIN PWB backward. (If necessary, take off the wire clamp, connectors etc.)

3.1.3 REMOVING THE SPEAKER � Remove the REAR COVER. (1) Remove the 4 screws [B], and remove speaker as shown in Fig. 1. (2) Remove the speaker. (3) Remove the other side speaker by same procedure.

3.1.7 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 wire connector is properly connected. � When conducting a check with power supplied, be sure to confirm that the CRT EARTH WIRE (BRAIDED ASS'Y) is connected to the CRT SOCKET PW board.

3.1.4 REMOVING THE FRONT AV PWB � Remove the REAR COVER. � Remove the MAIN PWB. (1) Remove the 2 screws [C] as shown in Fig. 1. (2) Remove the FRONT AV PWB.

3.1.8 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.

3.1.5 REMOVING THE HEADPHONE PWB � Remove the REAR COVER. � Remove the MAIN PWB. (1) Remove the 1 screw [D] as shown in Fig. 1. (2) Remove the HEADPHONE PWB.

1-6 (No.52135)