No Hdmi - Pioneer PDP-42A3HD Training & Troubleshooting Manual

2. No HDMI Signal
Preliminary Checkpoints
Check the condition of Conection of the HDMI input Connector
Check the condition of Soldering state in HDMI input part.
Check for short circuits between each power terminal and the ground.
at JP4(HDMI Connector)

No HDMI

signal
#37,38
at U401
in digital B/D
Waveform 7
#108,109,111,112,
114,115,117,118
DC level At U401
In digital Board
Waveform 8
EDID data
at U4
In digi tal Board
No sound
in HDMI mode
Check the signal
Change Digital B/D
NG
Check the state of soldering
at U401,U800,U29
NG
Check input signal part of
NG
Check HDMI_PWR
NG
Check the EDID data
&Audio output at U401
NG
Change JP4
34
U401
&5VSTB