PDP-4271HD
86
1
2
3
4
1
2
3
4
C
D
F
A
B
E
5.1.6 FLOWCHART OF FAILURE ANALYSIS FOR THE VIDEO SYSTEM
Flowchart of Failure Analysis for The Video System
Is the selected input signal a
composite signal?
Are the data displayed on the
"HDMI SIGNAL INFO" page of
the Factory menu correct?
The source equipment previously
used is in failure.
No problem with the MAIN Assy.
Is the sync signal output from
IC5401?
Does the result of SIG mode
detection on the Factory menu
coincide with the input signal data?
Is a video signal output from
IC5401?
(110 to 113, 116 to 119)
(123 to 126, 129 to 132)
(133, 136, 137, 140 to 144)
Info Frame data have not been acquired.
Check if Function corresponding to the input signal is selected.
Yes
No
No
No
OK
After changing the source
equipment, check the "HDMI
SIGNAL INFO" data again.
NG
Replace the MAIN Assy.
IC5401 and its peripheral circuits
are in failure.
No
Replace the MAIN Assy.
The input signal is not displayed.
⇒
COMP / S1
Is the selected input signal a
s-video signal?
Yes
No
⇒
COMP / S1
⇒
COMP / S2
Is the selected input signal a
PC signal?
Yes
⇒
COMP / PC2
Is the selected input signal a
analog component signal?
Is the selected input signal an
analog TV signal?
Yes
No
Is the selected input signal an
HDMI signal?
Yes
Yes
⇒
DTV
Is the selected input signal a
digital TV signal?
Yes
⇒
USB
Is the selected input signal a
USB signal?
No problem with the MAIN Assy
Yes
No
No
Yes
Yes
Yes
Is the sync signal input to IC8001?
The signal identification path is
in failure.
No
Replace the MAIN Assy.
IC8001 and its peripheral circuits are in failure.
Replace the MAIN Assy.
Yes
IC8001 and its peripheral circuits are in failure.
Replace the MAIN Assy.
Yes
No
No
No
⇒
COMP / PC1
Failure analysis for the
MAIN Assy.
⇒
MA3
Содержание PDP-4270HD
Страница 20: ...PDP 4271HD 20 1 2 3 4 1 2 3 4 C D F A B E 2 6 PANEL CHASSIS SECTION 1 2 3 6 4 5 8 8 8 8 8 8 9 13 7 10 12 11 14 ...
Страница 55: ...PDP 4271HD 55 5 6 7 8 5 6 7 8 C D F A B E ...
Страница 189: ...PDP 4271HD 189 5 6 7 8 5 6 7 8 C D F A B E Block Diagram R2S11002AFT MAIN ASSY IC4701 AV SW ...
Страница 190: ...PDP 4271HD 190 1 2 3 4 1 2 3 4 C D F A B E Block Diagram R2S11001FT MAIN ASSY IC4901 Component SW IC ...