Hitachi 42HDF52A Service Manual page 19

NTSC TV source no signal
No NTSC TV Signal
Make sure the OSD TV
source option is correct
(Cable/Air)
Check if the TV cable has
been well connected to the
PDP?
Check if the "Channel
Search" function has been
done?
Check if the Assembly
PCB-Video has been well
connected?
Change the NTSC Tuner
Board and check if it works.
Change the
PCB-Main
Yes
Yes
Yes
Yes
No
19
No
Select to the correct
option
No
Connect the TV
cable properly
No
Execute the "Channel
Search" function.
No
Connect the Assembly
PCB-Video properly.
Yes
Test
again