Table of Contents
Advertisement
LC-32/40/46LE600E/RU/S
<When EXT3/4/8 is used for external input>
No Component video output when the EXT3 external input is
used.
Checklist:
1) Is "INPUT SOURCE" button
the remote control.
2) Is MENU-Picture-Backlight/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.
4) Attention: The terminal of IC3303 (VCT) cannot be actually checked by hiding oneself, and check it with another terminal of the same line,
please.
Is the component video signal sent to pin (3) (5) (7) of EXT3 ter-
minal (J503)? (Y, Pb, Pr)
Is the component video signal (COMP_Y/Pb/Pr) sent to input ter-
minal pin (AE21) (AD22) (AF22) of IC3303 (VCT)?
Is the LVDS video signal (LVDS0_D [0:4] ±) input to pins (40)-
(28) of LW Connector (P2601), and is CLK signal (TCLK±) input
to pins (32)/(33)?
Is the I2C signal (VCOM_SDA/SCL) send to pin(12)/(13) of LP
Connector (P2602)?
Is the PNL12V output to pin (1)/(2) of PL Connector (CN7004(32
inch)/CN7503(40/46 inch)) of POWER UNIT?
Exchange LCD-CONT-UNIT and do it operate normally?
Check the contact of the LCD-CONT-UNIT connection harness
(LW/LP/PL).
Exchange LCD-PANEL if it is useless even if it exchanges it.
No picture on the display (4)-1
on the remote control set up correctly? ••• set it as "EXT3"/"EXT4"/"EXT8" with the INPUT SOURCE button on
YES
YES
YES
YES
YES
NO
NO
Check external connection, input setting, EXT3 terminal (J503)
and peripheral circuits.
NO
Check between pins (3) (5) (7) of EXT3 terminal (J503) and pins
(AE21) (AD22) (AF22) of IC3303 (VCT) and peripheral circuits.
NO
Check whether there is short circuit between [A6:A11], [B6:B11]
pin of IC3303 (VCT) and (40)-(28) pin of LW Connector (P2601),
and peripheral circuits.
NO
Check the I2C signal of IC2602 and peripheral circuit.
NO
Check PL connector of POWER UNIT and U7053(32inch)/
IC7502(40/46inch).
5 – 20
Advertisement
Table of Contents
