Sharp LC-26SH7E/RU Service Manual page 54

LC-19SH7E/RU, LC-26SH7E/RU, LC-32SH7E/RU, LC-42SH7E/RU
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
(CN700) normal?
Are EDID data pin (6)(SCL) of IC U701 (EEPROM), pin (5)(SDA)
accessed, and is it read from pin (15), pin (16) of a HDMI
terminal(CN700)?
Is TMDS signal input into pin(AF18, AE18)/RX2±,(AF17,
AE17)/RX1±, (AF16, AE16)/RX0±, (AF15, AE15)/RXC± of IC U400?
Refer to "The picture doesn't appear in all modes."
↓
Does not the picture of the PC IN(ANALOG) video signal input to VGA(15pin-D-SUB terminal) go out?
↓
TERMINAL_UNIT:
Is R/G/B/H/V signal sent to pin (1)/R, (2)/G, (3)/B, (14)/H, (13)/V of
VGA (CN554)?
↓YES
MAIN_UNIT:
Is R/G/B/H/V signal sent to pin (AE20)/R, (AE19)/G, (AD19)/B,
(AC18)/H, (AB18)/V of IC U400?
↓YES
Refer to "The picture doesn't appear in all modes."
<External input HDMI1>No picture on the display (8)
↓
↓
YES
YES
↓YES
<External input VGA>No picture on the display (9)
NO
Check the line between pin (AB5) of IC U400 and CN700.
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 U701?
Check CN700, IC U701 and peripheral circuits.
NO Check the line between IC U400 and CN700.
NO
Check the setting of an external input device that connects of
CN554.
NO
Check the line between IC U400 and CN554.
54
↓
↓NO