Sharp LC-22LE320 Service Manual page 61

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(AP15, AT15)/RX2-2±,(AR14,
AU14)/RX2-1±, (AP13, AT13)/RX2-0±, (AR12, AU12)/RX2-C± of IC
U401?
Refer to "The picture doesn't appear in all modes."
LC-19LE320, LC-22LE320, LC-26LE320, LC-32LE320, LC-37LE320, LC-42LE320
<External input HDMI1>No picture on the display (7)
↓
↓
YES
YES
↓YES
2008-03-14
NO
Check the line between pin (AN16) of IC U401 and CN502.
Check the connection and setup with the external HDMI devices.
NO
Is access possible in the re-writing or exchange of EDID data of
IC U503?
Check CN502, IC U503 and peripheral circuits.
NO Check the line between IC U401 and CN502.
61
↓
↓NO