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Troubleshooting Table (continued)
TROUBLESHOOTING TABLE
<When EXT2 is used for external input>
No EXT2-Composite output of the external
input system.
Checklist:
1) Is "INPUT SOURCE" button
2) Is MENU-PICTURE-CONTRAST/BRIGHTNESS set to "MIN"? ··· Set it to an appropriate level.
3) Check the connection to the external device ··· Connect it correctly as per the operation manual for the device.
Is composite video
Check external
signal sent to pin
connection, input
NO
(41) of SCART2
setting, SCART2
(J1101)?
(J1101) and
peripheral circuits.
YES
Is composite video
Check
signal (VIN_2)
NO
CONNECTOR
sent to input
(SC2702/P1101),
terminal pin (4) of
SCART2 (J1101)
IC2702 (SW)?
and peripheral
circuits.
YES
Is composite video
Check IC2702
signal
NO
(SW) and
(CVBS2=VIN2)
peripheral circuits.
sent to input
terminal pin (190)
of IC3002 (VCT)?
YES
Is LVDS signal (LVDS_0N/0P-3N/3P) sent from pins (141) and (140) - (129) and (128) of IC3002
(VCTP), and is CLK signal (LVDS_CN/CP) sent from pins (132) and (131)?
Is LVDS signal (LVDS_0N/0P-3N/3P) sent to pins (12) and (13) - (24) and (25) of CONNECTOR
CN1 in LCD-CONT-UNIT, and is CLK signal (LVDS_CN/CP) sent to pins (21) and (22)?
Is power (LCD5V) supplied to pins (2) – (5) of CONNECTOR CN1 in LCD-CONT-UNIT?
Check IC1705 and peripheral parts.
No picture on the display (4)
No EXT2-RGB output of the external input
system.
on the remote control set up correctly? ··· See the operation manual and set "INPUT SOURCE" to "EXT2".
Is RGB signal sent
to pins (36), (32)
and (28) of
SCART2 (J1101)?
YES
Is RGB signal
(R2/G2/B2=VIN_1
5/16/17) sent to
input terminal pins
(178), (177) and
(176) of IC3002
(VCT)?
YES
YES
YES
YES
Replace LCD-CONT-UNIT.
(Continued)
No EXT2-Y/C output of the external input
system.
Check external
Is Y/C signal sent
connection, input
to pins (41) and
NO
setting, SCART2
(36) of SCART2
(J1101) and
(J1101)?
peripheral circuits.
Check
Is Y/C signal
NO
CONNECTOR
(VIN2=Y2/C2) sent
(SC2702/P1101),
to input terminal
SCART2 (J1101)
pins (190) and
and peripheral
(178) of IC3002
circuits.
(VCT)?
NO
Check pins (192), (170) and (133) of BU3.3V
power line and pins (185), (169) and (142) of
BU1.8V power line of IC3002 (VCTP), and
peripheral circuits.
NO
Check CONNECTOR (P2305, CN1) and
Harness Wire (LV).
NO
Is LCD5V supplied to pins (31) - (28) of
CONNECTOR (P2305)?
YES
Is IC 1705 supplying LCD 5V?
Change IC1705.
35
51
LC-26GA5E
LC-32GD9E
LC-32GA5E
LC-37GD9E
LC-32/37GD8E/RU
LC-32/37BT8E/RU
Check external
connection, input
NO
setting, SCART2
(J1101) and
peripheral circuits.
YES
Check
NO
CONNECTOR
(SC2702/P1101),
SCART2 (J1101)
and peripheral
circuits.
YES
YES
NO
Check HARNESSWIRE (LV).
NO
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