Flowchart Of Failure Analysis For The Drive Assy - Pioneer PDP-4270XA Service Manual

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5.1.4 FLOWCHART OF FAILURE ANALYSIS FOR THE DRIVE ASSY

A
Flowchart of Failure Analysis for The Drive Assy
Failure analysis for the
drive system ⇒ DR1
Reset lighting is not displayed.
X/Y DRIVE Assys
B
Is the waveform normal when the
voltage is applied to the panel?
Yes
Are the panel FFC cables properly
connected to the X/Y DRIVE Assys?
Yes
C
Replace the panel chassis.
D
E
F
78
1
2
No
No
Properly connect the panel
FFC cables.
NG
PDP-427XD
2
3
Are the FFC cables properly
connected?
Yes
Is the input signal normal?
Yes
Replace the X/Y DRIVE Assys.
3
4
No
Properly connect the FFC cables.
NG
No
Replace the FFC cables.
NG
Replace the DIGITAL Assy.
4