149
150
151
If configuration of the USB controller has not been completed
Communication failure of the North CPU, which cannot be judged with the status LEDs,
can be judged with the pulse waveform output from Pin 2 of the CPLD (IC1700).
CH1
If communication with the video encoder failed
CH1
If communication with the center panel microcomputer failed
CH1
1.0V/div
20µs/div
1.0V/div
20µs/div
20µs/div
1.0V/div
No.(SCH/PCB)
CH1 - 151 IC1700(2P)
No.(SCH/PCB)
CH1 - 151 IC1700(2P)
No.(SCH/PCB)
CH1 - 151 IC1700(2P)
[15] NMAIN: DEBUG SIGNAL WAVEFORMS
Voltage
Time
Signal Name
Measurement Point
Voltage
Time
Signal Name
Measurement Point
Voltage
Time
Signal Name
Measurement Point
CPLD waveform for auto device diagnosis