Pioneer PDP-R04G - MR Main Board Assembly (12;13) - MR I;F Block

44
1
23
4
1234
C
D
F
A
B
E
PDP-R04G
B
Image for the component or RGB signals is not displayed
Image for the component or
RGB signals is not displayed
No
Is the function corresponding
to selected signal input
selected?
No
Select the corresponding
signal with the Input selector.
Has the signal arrived at
IC8005?
Check the communication
between the jack and
IC8005.
Yes
Which signal is not output,
main or subsignal?
Yes
No
B
Is a signal output from
IC8005?
(43), (44), (46), (Pr, Pb, Y)
Check around IC8005 and
check the communications
between IC8005 and the
microcomputer.
Main signal
Is a signal output from
IC8005?
(35), (36), (38),(Pr, Pb, Y)
No
Subsignal
No
B
Yes
Check the communications
between IC8005 and
IC6601.
No
Is the communication
between each IC on the
MR MAIN BOARD Assy and
the microcomputer normal?
Check around the IC that is
found to have a failure in
communication and the
microcomputer.
Yes
No
Has the symptom been
settled when the MR MAIN
BOARD Assy is replaced?
The panel is defective.
Yes
No
Finishing troubleshooting
Yes
Yes
21
181716
A
Has the signal arrived at
IC6401?
(1), (5), (25), (Y, Pb, Pr)
Check the communications
between IC8005 and
IC6401.
No
242322
Yes
A
Has the signal arrived at
IC6402?
TP6402, 6403, 6404
Check the communications
between IC6401 and
IC6402.
No
302928
A
Has the signal arrived at
IC6601?
(1), (5), (25), (Y, Pb, Pr)
272625
Yes
Yes
A
Has the signal arrived at
IC6602?
TP6604, 6605, 6606
333231
2019
Check the communications
between IC8005 and
IC6601.
No