Disassembly - JVC PD-42V475 Service Manual

3.1 SYSTEM SETTEING
When the DIGITAL SIGNAL PWB is replaced or the DIGITAL
INPUT is not normal, SYSTEM SETTING in the following
procedure.
(1) Press the [SLEEP TIMER] key, and set it to 0 minutes.
(2) Press the [DISPLAY] key and the [VIDEO STATUS] key
simultaneously, then the SERVICE MENU screen will be
displayed.
(3) In the SERVICE MENU, press the [2] key. Then, the SELF-
CHECK screen will be displayed.
(4) Turn off the power by pressing the [POWER] key on the
remote control unit.
SERVICE MENU SCREEN
SERVICE MENU SERVICE MENU
1.ADJUST 1.ADJUST
2.SELF_CHK 2.SELF_CHK
3.I2C STOP 3.I2C STOP
SELF-CHECK SCREEN
LOB LOB OK OK FAN FAN
SYNC M:OK S:OK HD:NG SYNC M:OK S:OK HD:NG
TIM TIM OK OK
MSM MSM OK OK DIGI 0000 DIGI 0000
MEM MEM OK OK AVSW OK AVSW OK
YC YC OK OK AIO AIO
TUN TUN OK OK GCR GCR
IP IP OK OK RGB RGB
DVI DVI OK OK HDMI OK HDMI OK
3.2 DISASSEMBLY PROCEDURE
CAUTION:
•
When exchanging parts etc. with the front side (PDP side)
facing down, please place a protection sheet below before
starting, so as to prevent scratches on the front side.
•
Pay extra attention in the following matter when turning the
power on with the REAR COVER removed.
(1) Prior to disassembly, unplug the power cord from the AC
outlet without fail. (Turn the power "off".)
(2) Make sure that the RECEIVER PWB: IC3106 is completely
covered with black masking tape. (Fig.2)
(3) Make sure to remove the masking of RECEIVER PWB:
IC3106 when attaching the REAR COVER.
(4) Do not turn the power on until the REAR COVER is
attached properly, after the masking is removed.

DISASSEMBLY

OK OK
OK OK
NG 1 NG 1
OK 8 OK 8
Fig. 1
SECTION 3
RECEIVER PWB
3.2.1 REMOVING THE REAR COVER (Fig.3)
(1) Remove the power cord.
(2) Remove the 4 screws [A], and remove the STAND COVER.
(3) Remove the 2 screws [B] and the 6 screws [C].
(4) Remove the TABLE TOP STAND.
(5) Remove the 15 screws [D], the 4 screws [E], the 8 screws
[F], and remove the REAR COVER.
CAUTION:
•
Prior to starting the work, be sure to read the following written
instructions on the CAUTION LABEL attached to the REAR
COVER.
3.2.2 REMOVING THE TERMINAL COVER AND CENTER COVER
(Fig.3)
•
Remove the REAR COVER.
(1) Remove the 7 screws [G], and remove the CHASSIS
SHIELD COVER.
(2) Remove the 6 screws [H], and remove the CENTER
COVER.
(3) Remove the 6 screws [I], the 12 screws [J], the 1 screw
[K], the 1 nut [L], the 1 washer [M], and remove the
TERMINAL COVER.
SOLDER SIDE
IC3106
Masking tape
Fig. 2
(No.YA099) 1-11