Pioneer PDP-5010FD Service Manual page 51

5
Failure analysis for the
drive system => DR3
The abnormality is associated with
one ADDRESS or one TCP?
Is the TCP control signal normal?
Yes
Replace the panel chassis.
In most cases of damage on one line,
the panel chassis must be replaced.
Failure analysis for the
drive system => DR4
The abnormality is associated
with a single scan line.
Is the waveform normal when the
voltage is applied to the panel?
Yes
Replace the SCAN IC.
NG
Replace the panel chassis.
5
6
Diagnose the ADDRESS Assy.
No
Are the FFC cables properly
connected?
Yes
NG
Replace the DIGITAL Assy.
Diagnose the SCAN A, B, C and D Assys.
No
Is the Three pieces connector
connected properly to the socket?
Yes
Is the waveform of the SCAN IC
control signal from the Y DRIVE
Assy normal?
Yes
6
7
No
Properly connect the FFC cables.
NG
If the FFC cable that connects the DIGITAL and ADDRESS Assys is in failure,
the abnormality is associated with one address in most cases.
No
Reconnect the connector properly.
NG
No
Replace the Y DRIVE Assy.
PDP-5010FD
7
8
A
B
C
D
E
F
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