PDP-4280HD
46
1
2
3
4
1
2
3
4
C
D
F
A
B
E
Check with the animated slanting ramp mask.
A main microcomputer may stop in the state
that it hung a panel mute due to something.
Is the on-screen display (OSD)
properly displayed?
Is the audio signal output?
Is the panel mask properly
displayed?
No
No
Yes
Check on the Factory menu.
Is an external video signal
displayed properly?
Specific failure whose cause is
difficult to identify in the initial stage
No
No
Failure analysis for the
audio system => AU1
Yes
Yes
Yes
In the subsequent diagnostic steps, it is most likely that the multi base section is in failure.
Problems concerning video display
Problems concerning the audio output
A
Is it return to properly indication
when a command (PMTS00) is
issued?
No
Failure analysis for the
drive system => DR2
No
Failure analysis for the
MAIN Assy => MA4
Failure analysis for the
DIGITAL Assy => DG1
Failure analysis for the
MAIN Assy => MA3
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 ...