Sharp LC-32SV40U Service Manual page 49

Does not the picture display when HDMI cable plugged into HDMI1 ?
Terminal
Is the HOT_PLUG detection function of pin (19) of
HDMI terminal (CN8103) normal?
YES
Main UNIT:
Is TMDS signal input into pin
RX3_2/ RX3_2B,
RX3_1 /RX3_1B,
RX3_0/RX3_0B
RX3_C/RX3_CB of IC U2102?
YES
Refer to "The picture doesn't appear in all
modes."?
<External input Input(Side HDMI)>No picture on the display (3)
NO
NO
48
Check the line between pin (78) of IC U2102 and
CN8103.
Check the connection and setup with the
external HDMI devices.
Check the line between IC U2102 and CN8103.