MAIN UNIT:
<External Input (HDMI_2)>No picture on the display (4)
Does not the picture display when HDMI cable plugged into HDMI_2?
Is TMDS signal input into pin
HDMI2_RX2+, HDMI2_RX2-,
HDMI2_RX1+, HDMI2_RX1-
HDMI2_RX0+, HDMI2_RX0-
HDMI2_RC+ , HDMI2_RC-, of IC
U502?
Refer to “The picture doesn't appear in
all modes.”
Check the circuit between pin (K28) of
IC U502 and CN621
Check the circuit between IC U502
and CN621
NO
NO
YES
YES
Is the HDMI2_HPD detection function of
pin (19) of a HDMI terminal (CN621)
normal?
Check the connection and setup with
the external HDMI devices.
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