PDP-R06XE
62
1
2
3
4
1
2
3
4
C
D
F
A
B
E
No picture displayed when an RGB signal is input
No picture displayed when
an RGB signal is input 1.
Yes
Is the function corresponding
to selected signal input
selected?
No
Select the input select
function corresponding to
the signal being input.
Check the communications
between the CN4003 and
IC4806, and CN4003 and
the microcomputer.
No picture displayed when
an RGB signal is input 3.
Yes
Is the function corresponding
to selected signal input
selected?
Yes
Is the signal that is not
displayed the main or sub
signal?
Yes
Yes
No
No
No
No
Are the signals output from
IC4806?
(pin 30), (pin 32), (pin 34)
Check around IC4806 and
communication between
IC4806 and the
microcomputer.
Main signal
Are the signals output from
IC4804?
(pin 42), (pin 45)
Is the main display an
analog/digital TV?
No
Subsignal
Check around IC4804 and
communication between
IC4804 and the
microcomputer.
No
Check between IC4804 and
IC6001.
No
Yes
Are communications
between the microcomputer
and each IC on the MR
MAIN Assy OK?
Check the IC with a
communication failure and
around the microcomputer.
Yes
No
Does the symptom
disappear after the MR
MAIN Assy is replaced?
Failure in the panel
Yes
No
Finished
Yes
Are the signals input to
IC4806? (pin 8), (pin 10),
(pin 12)
Yes
Yes
39
38
37
Are the signals detected at
IC6003?
(pin 160), (pin 164), (pin 172)
Check between IC4806 and
IC6003.
No
42
41
40
Are the signals detected at
IC6001?
(pin 1), (pin 2)
10
9
Yes
Yes
36
35
34
Are the signals input to
IC4806? (pin 2), (pin 4),
(pin 6)
33
32
31
6
5
The signal is not to be
displayed on the sublevel
side.
