MAIN UNIT:
<External Input (HDMI_1)>No picture on the display (3)
Does not the picture display when HDMI cable plugged into HDMI_1?
Terminal
Is TMDS signal input into pin
HDMI3_RX2+,HDMI3_RX2-,
HDMI3_RX1+,HDMI3_RX1-
HDMI3_RX0+,HDMI3_RX0-
HDMI3_RC+,HDMI3_RC-,of IC U502?
Refer to “The picture doesn't appear in
all modes.”
Check the circuit between pin K29) of
IC U502 and CN620.
Check the circuit between IC U502
and CN620.
NO
NO
YES
YES
Is the HDMI1_HPD detection function of
pin (19) of HDMI terminal (CN620)
normal?
Check the connection and setup with
the external HDMI devices.
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