Pioneer PDP-507XC Service Manual page 196

5
Are all the connectors properly
connected?
Is the VXNRST set voltage
(-180 V) correctly set?
D
Another Assy may be in failure.
Is the input signal normal?
(See the oscilloscope photos.)
Replace the X DRIVE Assy.
Are all the connectors properly
connected?
Is the TCP control signal normal?
(See the oscilloscope photos.)
5
6
B
X DRIVE Assy
No
Yes
No
Yes
Yes
Is the waveform normal when the
voltage is applied to the panel?
(See the oscilloscope photos.)
No
Yes
C
ADDRESS Assy
No
Yes
No
Yes
Replace the panel chassis.
PDP-507XD
6
7
Reconnect the connectors.
Set the VXNRST voltage correctly.
No
Replace the FFC cables.
Replace the DIGITAL Assy.
Reconnect the connectors.
Is the input signal normal?
(See the oscilloscope photos.)
Yes
Replace the FFC cables.
Replace the DIGITAL Assy.
7
8
A
NG
NG
B
NG
C
NG
D
No
NG
E
F
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8