Hdmi No Picture - RCA 50LB45RQ Service Manual

5.3 Function Exceptions
5.3.2 HDMI no picture
\\
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No signal or image abnormal under HDMI )
J
Replace the signal
source
No
the in
signal source under
HDMI is norma
Yes
Overhaul the relevant
circuits between HDMI
input channel and U7
No
if the input
on the pin under relevant
HDMI channel of U7
are norma
Yes
Replace U7
No
output signal on the pin
under HDMI channel o
J7 are norma
Yes
Overhual the circuit
between U8 and U7
No wheth_
signal on the pin _>
_relevant HDMI channelJ
Replace the master
chip(U8)
Version 1.0
20