JVC HV-32D25EUW Service Manual page 10

HV-32D25EUW
HV-32D25EJW
2.4 DISASSEMBLY PROCEDURE
2.4.1 REMOVING THE SUB WOOFER UNIT & THE REAR
COVER
(1) Unplug the power cord.
(2) Remove the SUB WOOFER CORD from the TERMINAL
AV TERMINAL BOARD.
(3) Pull up the SUB WOOFER UNIT on the top of the REAR
COVER upward.
(4) Remove the 13 screws [A] as shown in the Fig. 1
(5) Withdraw the REAR COVER toward you.
2.4.2 REMOVING THE SIDE CONTROL JACK ASSEMBLY
*Remove the REAR COVER.
(1) Remove the 1 screw [B] as shown in the Fig.1.
(2) While slightly raise the SIDE CONTROL JACK ASSEMBLY,
remove the 2 claws under the SIDE CONTROL JACK
ASSEMBLY.
(3) Disconnect the connector F and CN8016 as shown in Fig.
2.
2.4.3 REMOVING THE SIDE CONTROL PWB
* Remove the REAR COVER.
* Remove the SIDE CONTROL ASSEMBLY.
(1) Remove the 3 claws [C] from back side of the SIDE
CONTROL JACK ASSEMBLY as shown in Fig. 2.
(2) Pull out the SIDE CONTROL PWB.
F Connector
CN8016 Connector
2.4.4 REMOVING THE MAIN CHASSIS
* Remove the REAR COVER.
(1) Slightly raise the both sides of the MAIN CHASSIS by
hand and remove the two claws under the both sides of
the MAIN CHASSIS from the front cabinet
(2) Withdraw the MAIN CHASSIS backward.
(If necessary, take off the wire clamp, connectors etc.)
2.4.5 REMOVING THE POWER & DEF. PWB
* Remove the MAIN CHASSIS.
(1) Remove the 3 screws [D] as shown in Fig. 1.
(2) Remove the POWER & DEF. PWB upper.
(If necessary, take off the wire clamp, connectors etc.)
2.4.6 REMOVING THE CENTER SPEAKER
* Remove the REAR COVER
* Remove the MAIN CHASSIS.
(1) Remove the 2 screws [E] as shown in Fig. 1.
(2) Remove the CENTER SPEAKER. If necessary, detach
the cables.
2.4.7 REMOVING THE SIDE SPEAKER
*Remove the REAR COVER
(1) Remove the 2 screws [F], and remove the speaker
adapter as shown in Fig. 1
NOTE:
When removing the 2 screws marked [F] of the speaker
adapter remove the lower side screw first, and then
remove the upper one
10
C
SIDE
CONTROL
PWB
C
(Back view)
Fig.2
(2) Remove the 4 screws [G] attaching the SIDE SPEAKER.
(3) Follow the same steps when removing the other hand
speaker.
2.4.8 REMOVING THE AV TERMINAL BOARD
* Remove the REAR COVER.
(1) Remove the 8 screws [H] as shown in the Fig. 1.
(2) Remove the 3 claws [ I ] under the CHASSIS as shown in
Fig. 3
(3) Remove the AV TERMINAL BOARD slightly in the
direction of arrow [J] as shown in Fig. 3.
(4) After removing the 1 clow [K] on the connector for SUB
WOOFERS pull out the connector for SUB WOOFER.
(Fig. 4)
J
AV
TERMINAL
BOARD
I
WOOFER
CORD
K
CONNECTOR for
SUB WOOFER
2.4.9 CHECKING THE PW BOARD
(1) Pull out the MAIN CHASSIS. (Refer to REMOVING THE
MAIN CHASSIS)
(2) Erect the MAIN CHASSIS vertically so that you can easily
check the back side of the PW board.
CAUTION:
• When erecting the MAIN CHASSIS, 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.
2.4.10 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
I
Fig.3
AV TERMINAL BOARD
SUB WOOFER
K
CORD
Fig.4