Pioneer PDP-4270XA Service Manual page 89

5
Flowchart of Failure Analysis for The Video System
DTV doesn't work
⇒ DTV
DTV (Digital Terrestrial Video)
doesn't operate.
Yes
Is the function corresponding to
selected signal input selected?
Yes
Has the symptom been settled
when the Digital RF IN terminal
and Input cable are checked?
Yes
Has the symptom been settled when the FFC between
CN6003 and CN4013 is checked or replaced?
Has the symptom been settled when the cable between
CN6000 and CN4017 is checked or replaced?
Yes
Has the symptom been settled
when the R07 DT Assy is replaced?
Yes
Replace the MAIN Assy.
5
6
No
Select the corresponding signal
with the input selector.
No
Poor contact of the terminal part
or input cable is defective.
Poor contact of the connector, or
No
FFC or cable is defective.
Replace FFC or cable.
No
The R07 DT Assy is defective.
Replace the R07 DT Assy.
6
7
PDP-427XD
7
8
A
B
C
D
E
F
89
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