Sharp LC-26GA4D, Service Manual

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45
LC-26GA4D
LC-26GA4U
TROUBLE SHOOTING TABLE
(Continued)
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)?
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?
Is IC1913 (E
2
PROM) accessed by
I
2
C
to
read out DDC
I
2
C
CLOCK/DATA when
HDMI equipment is connected?
Check HDMI equipment settings.
Check IC3703, IC3701 and the
peripheral circuits.
Are there HDMI Y/Pb/Pr and HDMI H/V
signal outputs from MF connector?
Check IC1912 (HDMI Receiver) and the
peripheral circuits.
Check MF harness for disconnection.
Check IC1913 (CONTROL) and the
peripheral circuits.
Is there HDMI RST signal output at
output pin (6) of IC1914 (CONTROL)?
Check IC1914 (CONTROL) and the
peripheral circuits.
Check IC1912 and the peripheral
circuits.
No HDMI input picture
YES
YES
NO YES
YES
YES
YES
YES
NO
YES
NO