PDP-R06XE
58
1
2
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4
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4
C
D
F
A
B
E
7. GENERAL INFORMATION
7.1 DIAGNOSIS
7.1.1 TROUBLESHOOTING
No composite or S-video input pictures displayed
No composite or S-video
input pictures displayed
Yes
Is the function corresponding
to selected signal input
selected?
No Select the input select
function corresponding to
the signal being input.
Is a signal detected
at IC4804?
Check between the pinjack
and IC4804.
Yes
Is the signal that is not
displayed the main or sub
signal?
Yes
No
Are the signals output from
IC4804?
(pin 47) (pin 49)
Check around IC4804 and
communication between
IC4804 and the
microcomputer.
Main signal
Are the signals output from
IC4804?
(pin 42) (pin 45)
Are the signals detected at
IC6001?
(pin 1) (pin 2)
No
Subsignal
No
Are the signals detected at
IC6003?
(pin 148) (pin 158)
Check between IC4804
and IC6003.
Yes
Yes
No
Check between IC4804
and IC6001.
• For check the communication with the microcomputer,
refer to the section 6.3 SERVICE FACTORY MODE.
• The encircled numbers denote measuring point in the
Waveforms for Troubleshooting.
• Diagnosis points
Note:
No
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
No TV picture displayed
Yes
Is TV selected with the
Input Selector?
No Select TV with the Input
Selector.
Yes
Is the signal detected at
IC4804?
(pin 57)
Check around the FE,
between the FE and IC4804,
and communication between
IC4804 and the microcomputer.
Yes
Yes
MR MAIN ASSY
No
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