System Microcomputer Test Program - Pioneer DEH-P3950MP Service Manual

1

6.4 SYSTEM MICROCOMPUTER TEST PROGRAM

A
- PCL Output
In the normal operation mode (with the detachable panel installed, the ACC switched ON, the standby mode cancelled),
shift the TESTIN IC601(Pin 112) terminal to H. The clock signal is output from the SCET IC601(Pin 43) terminal.
The frequency of the clock signal is 1 Hz. The clock signal should be 1 Hz ± 0.000 04 Hz.
If the clock signal is out of the range, the X'tal (X601) should be replaced with new one.
B
C
D
E
F
50
1
2
DEH-P3950MP/XU/ES
2
3
3
4
4