Hitachi 42HDM12 Service Manual page 16

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No PC signal (Analog RGB)
No PC signal.
Check if PC source is
working on other
display?
Check if the D-Sub cables
have been well connected
to the PDP?
Check if the signal
frequency is higher than
1024x768 ?
Take off the back cover.
Change the
PCB-Main
Yes
Yes
No
No
Check PC by PC
Service Provider
No
Connect the D-Sub
cables properly
Yes
Adjust the signal
frequency.
16
Test
again

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