Sharp LC-19LE430E Service Manual page 58

LC-19LE430E/UK, LC-22LE430E/UK, LC-26LE430E/UK, LC-32LE430E/UK
Does not the picture of the HDMI signal input to HDMI1 go out?
MINI AV_UNIT:
Is the HOT_PLUG detection function of pin (19) of a HDMI terminal
(CN502) normal?
Are EDID data pin (6) (SCL) of IC U503 (EEPROM), pin (5) (SDA)
accessed, and is it read from pin (15), pin (16) of a HDMI terminal
(CN502)?
Is TMDS signal input into pin(63, 62)/RX2-2±,(60, 59)/RX2-1±, (57,
56)/RX2-0±, (54, 53)/RX2-C± of IC U501?
Is TMDS signal output from pin(17, 18)/ 2±,(20, 21)/ 1±, (23, 24)/ 0±,
(26, 27)/_C± of IC U501?
Refer to "The picture doesn't appear in all modes."
<External input HDMI1>No picture on the display (8)
↓
↓
YES
YES
↓YES
↓YES
NO
Check the line between pin (50) of IC U501 and CN502.
Check the connection and setup with the external HDMI devices.
Is access possible in the re-writing or exchange of EDID data of
NO
IC U503?
Check CN502, IC U503 and peripheral circuits.
NO
Check the line between IC U501 and CN502.
Check IC U501 and peripheral circuits.
58
↓NO
↓NO