50
PDP-5020FD
1
2
3
4
A
B
C
D
E
F
1
2
3
4
• Check with the combination of the animated/slanting ramp or other mask patterns and mirror function.
* Animated pattern: For checking erroneously discharged cells, load change is constantly caused on a screen.
* Ramp pattern: For checking gradation expression
* Mirror function: For checking if a defective indication is interlocked with mirror inversion, in order to identify a defective point
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
Failure analysis for the
DIGITAL Assy => DG1
Failure analysis for the
MAIN Assy => MA3
Failure analysis for the
drive system => DR2
Is the abnormality associated
with one scan IC block?
Yes
Is there any local abnormality
on the screen?
Is the abnormality associated
with one ADDRESS or one TCP?
No
No
Yes
Failure analysis for the
drive system => DR3
Failure analysis for the
drive system => DR4
Yes
No
Replace the panel chassis.
Содержание ARP3476
Страница 10: ...10 PDP 5020FD 1 2 3 4 A B C D E F 1 2 3 4 2 2 SPECIFICATIONS ...
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Страница 12: ...12 PDP 5020FD 1 2 3 4 A B C D E F 1 2 3 4 2 3 PANEL FACILITIES Front Section ...
Страница 13: ...13 PDP 5020FD 5 6 7 8 5 6 7 8 A B C D E F Rear Section ...
Страница 14: ...14 PDP 5020FD 1 2 3 4 A B C D E F 1 2 3 4 Remote Control Unit ...
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Страница 21: ...21 PDP 5020FD 5 6 7 8 5 6 7 8 A B C D E F ...
Страница 22: ...22 PDP 5020FD 1 2 3 4 A B C D E F 1 2 3 4 4 BLOCK DIAGRAM 4 1 OVERALL WIRING DIAGRAM 1 2 ...
Страница 25: ...25 PDP 5020FD 5 6 7 8 5 6 7 8 A B C D E F OVERALL DIAGRAM PDP 5020FD ...
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Страница 192: ...192 PDP 5020FD 1 2 3 4 A B C D E F 1 2 3 4 9 6 PANEL CHASSIS SECTION ...