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5
Flowchart of Failure Analysis for The MAIN BLOCK Assy
Failure analysis for the
MAIN BLOCK Assy => MA3
The input signal is not displayed.
Is the selected input signal a
terrestrial analog TV?
No
Is the selected input signal a
composite signal?
No
Is the selected input signal a
S-video signal?
No
Is the selected input signal a
RGB signal (SCART)?
No
Is the selected input signal a
component signal?
No
Is the selected input signal a
PC signal?
No
Is the selected input signal a
digital TV signal?
No
Is the block noise generated?
No
Is the selected input signal an
HDMI signal?
No
Are the data displayed when using
the Home Media Gallery function?
Yes
No problem with the MAIN BLOCK
Assy.
5
6
Yes
=> ATV
Yes
=> COMP / S1
Yes
=> COMP / S1
Yes
=> RGB
Yes
=> COMP / PC1
Yes
=> COMP / PC2
Yes
=> DTV1
Yes
=> DTV2
Are the data displayed on the
Yes
"HDMI SIGNAL INFO" page of
the Factory menu correct?
Yes
Does the result of SIG mode
detection on the Factory menu
coincide with the input signal data?
Yes
Replace the MAIN BLOK Assy.
No
=> HMG
6
7
No
After changing the source
equipment, then check again.
OK
The source equipment previously
used is in failure. No problem
with the MAIN BLOCK Assy.
No
Is the sync signal output from
IC4901 (HDMI RX)?
Yes
Is the sync signal input to IC6501
(ARIA)?
Yes
Check around the IC6501 (ARIA).
If there was no problem, replace
the MAIN BLOCK Assy.
KRP-M01
7
8
NG
Replace the MAIN BLOCK Assy.
No
Replace the MAIN BLOCK Assy.
No
Replace the MAIN BLOCK Assy.
8
A
B
C
D
E
F
39

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