PDP-507CMX
111
5
6
7
8
5
6
7
8
C
D
F
A
B
E
Failure in the IC5308
Install the video slot card properly.
No
Failure in the AUDIO Assy
No
No
No
Yes
Yes
No sound from the speaker
Failure analysis for the
audio system
⇒
AU1
A
With the speaker cables
disconnected, are audio signals
output from the speaker terminals?
Waveform 41
Are audio signals inputted to
IC5308 pin5?
Waveform 42
Yes
Yes
Is an audio signal input of the
video slot to the main unit NOT
output although an audio signal
input to AUDIO 1 or 2 is output?
Failure in the VSIF Assy, PCB
connectors, or video slot card.
If the audio signal is output after
the video slot card is replaced by
a normally operating one, the
removed video slot card was
defective.
Failure in the speakers or
speaker cables
Yes
Is the video slot card properly
installed?
Failure in the MAIN Assy or the
CN3004 (AU connector) cable
No
Is either of the audio signals input
to AUDIO INPUT 1 or 2 of the
monitor output when selected?
No
Is the green POWER indicator
repeating a burst of 5 flashes?
No
No
Is the voltage at Pin 9 of IC3002
4 V or higher?
Yes
Failure in the IC5308 or the poor
connection of the AUDIO input
terminal
Yes
Does the green POWER indicator
repeat a burst of 5 flashes even
after the CN3004 (AU connector)
cable is disconnected?
Failure in the IC3002
No
Yes
Failure in the MAIN Assy or the
CN3004 (AU connector) cable
Yes
Is the voltage at Pin 9 of IC3002
4 V or higher after the CN3004
(AU connector) cable is
disconnected?
Flowchart of Failure Analysis for The Audio System (AUDIO Assy)
Note:
Before performing a failure diagnosis, be sure to check that the settings of the unit are properly made by referring to its
specifications and instruction manual.
If speaker outputs with different polarities or a speaker output and ground are short-circuited, the protection circuit is activated,
and audio will not be output. In this case, turn the power off at the Main Power Switch, make connections properly, then turn the
power back on again. The protection circuit will then be released.
Summary of Contents for PDP 507CMX
Page 44: ...PDP 507CMX 44 1 2 3 4 1 2 3 4 C D F A B E 4 2 OVERALL CONNECTION DIAGRAM 2 2 ...
Page 45: ...PDP 507CMX 45 5 6 7 8 5 6 7 8 C D F A B E ...
Page 84: ...PDP 507CMX 84 1 2 3 4 1 2 3 4 C D F A B E 500ns div 500ns div 200ns div ...
Page 104: ...PDP 507CMX 104 1 2 3 4 1 2 3 4 C D F A B E ...