Hitachi P50T01E Service Manual page 22

P50T01U/E P50TP01U/E P42T01U/E P42TP01U/E
[Picture: HDMI troubleshooting]
HDMI1
Are waveforms at
pin13/14/16/17/20/21/23/24 of I405 of
MAIN PCB normal?
Change MAIN PCB
Does a phenomenon appear
if you change a HDMI
Are both inputs abnormal?
HDMI1
Which input is abnormal?
No
Change SD PCB or EMH (FFC cable)
Yes
If no improvement,
change MAIN PCB
c
HDMI
cable?
No
Yes
No
Change MAIN PCB
21
Yes
Change HDMI cable
Change MAIN PCB
HDMI2
HDMI2