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SC PCB
Signal Name
Pin No.
CN505-16 GND
CN505-17 nPRINT
CN505-18 N.C.
CN505-19 nCBSY
CN505-20 N.C.
CN505-21 nPRDY
CN505-22 N.C.
CN505-23 GND
CN505-24 pSAVE
CN509
SC PCB
Signal Name
Pin No.
CN509-1
EBC3A[27]
CN509-2
EBC3A[26]
Destination
Engine Control
PCB
CN001-9
Engine Control
PCB
CN001-8
Engine Control
PCB
CN001-7
Engine Control
PCB
CN001-6
Engine Control
PCB
CN001-5
Engine Control
PCB
CN001-4
Engine Control
PCB
CN001-3
Engine Control
PCB
CN001-2
Engine Control
PCB
CN001-1
Destination
FXB PCB
CN110-20
FXB PCB
CN110-19
Signal Waveform
0V
+5V
Print
Start
0V
+5V
Command
0V
+5V
Printer
Ready
0V
+5V
0V
Signal Waveform
+3.3V
0V
+3.3V
0V
202
Function
Ground
Print Start
No Connection
Busy Command
No Connection
Printer Ready
No Connection
No Connection
Power Save Control Signal
Function
System Address Bus
System Address Bus
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Troubleshooting
