Sharp LC-32D44U Service Manual page 44

LC-32D44U
PC: No external input video [INPUT-6]
Is INPUT-6 selected on the input select menu screen?
Select INPUT-6 on the input select menu
screen for the right input signal.
Is IC2202(EEPROM) accessed by I2C,
with PC connected, to read the DDC_I2C
SCL/SDA data?
Check the DDC line and its peripheral cir-
cuits.(IC2202 and its peripherals).
YES
Are there the video signal inputs at pins(AN15)(G), (AM15)(B) and
(AK16)(R) of IC8001(CPU)?
Are there the VSYNC/HSYNC signal inputs at pins(AJ16) and
(AH16) of IC8001?
Are digital video (LVDS) signals sent from pins B5~7, C5~7,
D5~7, and E5~7 of IC8001?
Are digital video (RSDS) signals sent from IC5103 to SC5201 and
SC5202?
Check between (SC5201, SC5202) and LCD Panel.
NO
YES
YES
YES
No video (6)
Check the line between SC2201 and IC8001 (Q2211, IC2201,
NO
etc.).
NO Check the line between IC8001 and IC5103.
Check IC8001 and peripheral circuits.
NO Check the line between IC5103 and SC5201 and SC5202.
Check IC5103 and peripheral circuits.
6 – 6