Hitachi 42PD9800TA Service Manual page 33

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Photo Input Unit
No Picture
Are waveforms at
10pin, 12pin, and 14pin of
PMB1 on Main PWB ?
No
Check photo Input unit or cable.
( Photo Input unit Main PWB. )
HDMI Picture [ Main PWB Circuit ]
No Picture
Are the output
other than HDMI of the AV
device nomal ?
*1
No
*1 DVD Player or STB
Check AV device
42PD9800TA (FW1)
Yes
Check Main PWB
Yes
Recommended Signal ?
(Table 1)
No
Check AV device
33
Yes
Check to Main PWB
or AV device