Sharp LC-26GA4D Service Manual page 45

TROUBLE SHOOTING TABLE
Are there signal inputs from HDMI
(SC1901) connector to each input pin of
RX0±} (pins (86) and (87)), RX1±} (pins
(91) and (92)), RX2±} (pins (96) and (97))
and RXC±} (pins (83) and (84)) of IC1912
(HDMI Receiver)?
YES
Are there HDMI Y/Pb/Pr and HDMI H/V
signal outputs from MF connector?
YES
Are there HDMI Y/Pb/Pr and HDMI H/V
signal inputs to IC3703 (L.P.F.) and
IC3701 (SYNC SELECTOR) of the main
PWB?
YES
Check IC3703, IC3701 and the
peripheral circuits.
No HDMI input picture
2
Is IC1913 (E PROM) accessed by
NO
2
I C
read out DDC CLOCK/DATA when
HDMI equipment is connected?
NO
Check IC1913 (CONTROL) and the
peripheral circuits.
YES
Is there HDMI RST signal output at
output pin (6) of IC1914 (CONTROL)?
NO
Check IC1914 (CONTROL) and the
peripheral circuits.
YES
Check IC1912 (HDMI Receiver) and the
peripheral circuits.
YES
Check MF harness for disconnection.
45
(Continued)
2
I C
to
YES
Check HDMI equipment settings.
YES
Check IC1912 and the peripheral
circuits.
LC-26GA4D
LC-26GA4U