General Information; Diagnosis; Troubleshooting - Pioneer PDP-R06G Service Manual

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7. GENERAL INFORMATION

7.1 DIAGNOSIS

7.1.1 TROUBLESHOOTING

Image for the composite or S or TV signal is not displayed
Image for the composite or
S signal is not displayed
No
Is the function corresponding
to selected signal input
selected?
Yes
Is the Component Signal is
connect to jack?
(Input 1, Input 2)
No
Is the HDMI Input is set to
disable? (Input 3)
Yes
Has the signal arrived
at IC4804?
Yes
Which signal is not output,
main or sub signal?
Main signal
Is a signal output from
IC4804?
2 3
(pin 47) (pin 49)
Yes
Has the signal arrived at
IC6003?
6 7
(pin 148) (pin 158)
Yes
Is the communication
between each IC on the MR
MAIN Assy and the
microcomputer normal?
Yes
Has the symptom been
settled when the MR MAIN
Assy is replaced?
Yes
Finishing troubleshooting
5
6
No Select the corresponding
signal with the Input selector.
Yes Disconnect Component and
confirm again.
No Set the HDMI Input set to
disable and confirm again.
No
Check the contact between
the pin jack and IC4804.
Sub signal
Check around IC4804 and
No
check the communications
between IC4804 and the
microcomputer.
No
Check the communications
between IC4804 and IC6003.
Check around the IC that is
No
found to have a failure in
communication and the
microcomputer.
No
The panel is defective.
6
7
TV signal is not displayed
on the screen.
No
Is the Input selector set to
TV?
Yes
Has the signal arrived
at IC4804?
(pin 57)
Yes
Is a signal output from
No
IC4804?
4
(pin 42) (pin 45)
Yes
Has the signal arrived at
IC6001?
8
(pin 1) (pin 2)
Yes
Note:
• Diagnosis points
MR MAIN ASSY
• 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.
PDP-R06G
7
8
No
Set the Input selector to TV.
Check around the FE and
No
check the communications
1 between FE and IC4804 and
the microcomputer.
5
No
Check the communications
between IC4804 and IC6001.
9
8
A
B
C
D
E
F
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