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5

7.1.7 TROUBLESHOOTING

Video
Image of INPUT 1 not
displayed (RGB)
Yes
No
Is INPUT 1 selected
with the input selector?
Yes
Is INPUT 1 SELECT
No
(D-SUB/HDMI) on the
menu correctly set?
Yes
AV I/O Assy 1 2 3 4 5
No
Has the signal arrived at
CN7605 on the AV I/O
Assy?
Yes
Which signal is not output,
main or subsignal?
Main
A
RGB Assy 6 7 8
No
Has the signal arrived at
IC6001 on the RGB
Assy?
Yes
B
Image of INPUT 2 not
displayed
Yes
No
Is INPUT 2 selected
with the input selector?
Yes
Output pin of IC6810
No
Is a signal output from
IC6810 on the AV I/O
Assy?
Yes
Input pin of IC5701
Has the signal arrived at
No
IC5701 on the RGB
Assy?
Yes
B
Is the communication
No
between each IC and
the main microcomputer
normal?
Yes
No
Does the symptom go
away when the RGB
Assy is replaced?
Yes
Finishing
troubleshooting
5
6
Select INPUT 1.
Set INPUT 1 SELECT
correctly.
Check communication from
the input terminal to IC7610
to CN7605.
Sub
C
Check the communication up
to IC6001 on the RGB Assy.
Select INPUT 2.
Check around IC6810.
Check the connection between
the AV I/O Assy and RGB Assy.
Check around the IC that is
found to have a failure in
communication and the
microcomputer.
Does the symptom go
away when the DIGITAL
VICEO Assy is replaced?
Yes
The panel is
Finishing
defective.
troubleshooting
6
7
Image of INPUT 3 not
displayed (Y/C)
Yes
VIDEO SLOT Assy - = ~ ! @
Is a signal output from IC6255
on the VIDEO SLOT Assy?
Yes
Which signal is not output,
main or subsignal?
Main
Input pin of IC5801
Has the signal arrived at
IC5801 on the RGB
Assy? (Digital RGB)
Yes
B
Image of INPUT 4 not
displayed (CVBS)
Yes
VIDEO SLOT Assy 2 3 4 5 6
Is a signal output from IC6107
on the VIDEO SLOT Assy?
Yes
Which signal is not output,
main or subsignal?
Main
Input pin of IC5801
Has the signal arrived at
IC5801 on the RGB
Assy? (Digital RGB)
Yes
B
Image of INPUT 5 not
displayed
Yes
VIDEO SLOT Assy ^ & *
Is a signal output from IC7902
on the VIDEO SLOT Assy?
Yes
Which signal is not output,
main or subsignal?
Main
A
C
RGB Assy ! @ #
No
Has the signal arrived at
IC6602 on the RGB
Assy?
Yes
B
PRO-1010HD
7
8
No
Check communication
between the input
terminal and IC6255.
Sub
C
Check communication
No
between the IC6255 and
RGB Assy.
No Check communication
between the input
terminal and IC6107.
Sub
C
Check communication
No
between the IC6107 and
RGB Assy.
No Check communication
between the input
terminal and IC7902.
Sub
C
Check communication up
No
to IC6602 on the RGB
Assy.
8
A
B
C
D
E
F
141

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