Drive Assy - Pioneer PDP-4280HD Service Manual

1

5.2.3 DRIVE ASSY

Flowchart of Failure Analysis for The Drive Assy
A
Failure analysis for the
drive system => DR1
Reset lighting is not displayed.
X/Y DRIVE Assys
Is the waveform normal when the
B
voltage is applied to the panel?
Yes
Are the panel FPC and SCAN Assys
connectors properly connected to
the X/Y DRIVE Assys?
Yes
Replace the panel chassis.
C
D
E
F
48
1
2
No
No
Properly connect the panel FPC
and SCAN Assys connectors.
NG
PDP-4280HD
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