Sharp LC-19SK25U Service Manual page 51

TROUBLESHOOTING TABLE (Continued)
No video output from HDMI input (INPUT3)
Are signals fed from HDMI (SC402) connector to input
terminals RRX0± (pins 16 and 17),RRX1(pins 19 and
20),RRX2(pins 22 and 23),DDCSCL and DDCSDA(pins 31
and 32?
Yes
Are signals fed from SC402 to input terminals of IC801?
Yes
Are signals from A6, A1, E1, E2, W5, W6, W7, Y6, AA6 of
IC801 normal?
Yes
Check IC9201 and peripheral circuits.
2
Is IC403(E PROM) accessed with IIC when connectiong
No
HDMI device and is DDC_IIC_CLOCK/DATA data read
out?
Yes
Check IC403 and peripheral circuits.
Are cables connected securely?
Check the setting of HDMI device.
No
Check IC801 and peripheral circuits.
No
Check IC801 and peripheral circuits.
51
LC-19SK25U/U-W
LC-19SB25U/U-W
LC-19SB15U
LC-19D45U
No