PDP-4280HD
51
5
6
7
8
5
6
7
8
C
D
F
A
B
E
Is the TCP control signal normal?
No
NG
NG
Yes
Yes
No
Are the FFC cables properly
connected?
Replace the DIGITAL Assy.
Properly connect the FFC cables.
The abnormality is associated with
one ADDRESS or one TCP?
Diagnose the ADDRESS Assy.
In most cases of damage on one line,
the panel chassis must be replaced.
If the FFC cable that connects the DIGITAL and ADDRESS Assys is in failure,
the abnormality is associated with one address in most cases.
Replace the panel chassis.
No
NG
Yes
Yes
Yes
No
Is the 15-pin bridge connector plug
connected properly to the socket?
Reconnect the plugs properly.
NG
Is the waveform of the SCAN IC
control signal from the Y DRIVE
Assy normal?
No
Replace the Y DRIVE Assy.
The abnormality is associated
with a single scan line.
Diagnose the SCAN A and B Assys.
Replace the SCAN IC.
Replace the panel chassis.
Failure analysis for the
drive system => DR3
Failure analysis for the
drive system => DR4
Is the waveform normal when the
voltage is applied to the panel?
Summary of Contents for PDP-4280HD
Page 10: ...PDP 4280HD 10 1 2 3 4 1 2 3 4 C D F A B E 2 2 SPECIFICATIONS Dimensions ...
Page 11: ...PDP 4280HD 11 5 6 7 8 5 6 7 8 C D F A B E 2 3 PANEL FACILITIES Front Section ...
Page 12: ...PDP 4280HD 12 1 2 3 4 1 2 3 4 C D F A B E Rear Section ...
Page 13: ...PDP 4280HD 13 5 6 7 8 5 6 7 8 C D F A B E Remote Control Unit ...
Page 19: ...PDP 4280HD 19 5 6 7 8 5 6 7 8 C D F A B E ...
Page 20: ...PDP 4280HD 20 1 2 3 4 1 2 3 4 C D F A B E 4 BLOCK DIAGRAM 4 1 OVERALL WIRING DIAGRAM 1 2 ...
Page 22: ...PDP 4280HD 22 1 2 3 4 1 2 3 4 C D F A B E 4 2 OVERALL WIRING DIAGRAM 2 2 ...
Page 23: ...PDP 4280HD 23 5 6 7 8 5 6 7 8 C D F A B E ...
Page 35: ...PDP 4280HD 35 5 6 7 8 5 6 7 8 C D F A B E ...
Page 168: ...PDP 4280HD 168 1 2 3 4 1 2 3 4 C D F A B E 10 6 PANEL CHASSIS SECTION ...
Page 172: ...PDP 4280HD 172 1 2 3 4 1 2 3 4 C D F A B E 10 8 PDP SERVICE ASSY 428 Exterior Section ...