Pioneer PDP-427CMX - Page 23

PDP-427CMX
23
5678
56
7
8
C
D
F
A
B
E
Examination of INPUT1
Failure in the MAIN PWB
Failure in the IC5002
Failure in the IC5603
Failure in the IC5604
Failure in the IC5301
Failure in the IC5301
Failure in the IC5605
Failure in the IC5606
Failure in the IC9504
Are signals input to the input terminals?
Are signals input to Pins 7 and
9 of IC5603?
Are signals input to Pins 4 and
10 (for sync) of IC5002?
Are the voltages at Pins 2 and
14 of IC5603 0 V and 0 V DC?
NO
YES
YES
YES
NO
NO
NO
NO
YES
YES
Are signals input to Pins 2, 30
and 31 (for control) of IC5301?
Are signals input to Pins 4 and
7 of IC5604?
Is the voltage at Pin 1 of
IC5604 0 V DC?
NO
NO
NO
YES
Failure in the MAIN PWB
Failure in the MAIN PWB
NO
NO
YES
YES
YES
YES
Are signals input to Pins 2, 30
and 31 (for control) of IC5301?
Are signals input to Pins 11 and 13 of IC5605?
Are signals input to Pins 3 and 6 of IC5606?
Are signals input to Pins 8 and 11 of IC9504?
Examination of the MAIN board
No image
In a case of input to INPUT1
Waveform 2
Waveform 3
Waveform 5
Waveform 7
Waveform 8
Waveform 9
Waveform 4
Waveform 6
Waveform 1-1, 1-2