Pioneer PDP-427CMX - Page 30

PDP-427CMX
30
1234
1234
C
D
F
A
B
E
Verification of the video section
In a case of PCOUT
Examination of the MAIN board
Check the connected
equipment and its cables.
Are signals input to the input terminals?
Are signals input to the input terminals?
NO
Failure in the MAIN PWB
Failure in the MAIN PWB
Failure in the IC5004
Failure in the IC5007
NO
YES
Failure in the IC5301
YES
YES
YES
NO
YES
Are signals input to Pins 21, 19
and 15 (for video) of IC5004?
Are signals input to Pins 15, 13
and 10 (for video) of IC5007?
Is the voltage at Pin 16
of IC5004 5V DC?
Check the signal output equipment and its cables.
Check the signal output equipment and its cables.
NO
Verification of the sync section
Examination of the MAIN board
Check the connected
equipment and its cables.
NO
Failure in the IC5604
Are signals input to Pins 2, 30
and 31 (for control) of IC5301?
Failure in the IC5008
NO
NO
YES
YES
YES
NO
YES
Are signals input to Pins 4
and 7 (for sync) of IC5005?
Are signals input to Pins 3
and 6 (for sync) of IC5008?
Is the voltage at Pin 1 of
IC5005 5V DC?
NO
Waveforms 20-1, 20-2
Waveform 21
Waveform 22
Waveform 23
Waveform 24
Waveform 25
Waveform 26