Gasboy CFN Series Diagnostic Manual User Manual
Page 348
Site Controller III
12-14
1116
Switches S1 and S2
Switch S1 – PC IRQ
Indicates the interrupt. Only one can be selected. SC3.EXE defaults to interrupt 10. No other
device can use this interrupt.
Switch
Function
Default
S1-1
IRQ-15
Open
S1-2
IRQ-12
Open
S1-3
IRQ-11
Open
S1-4
IRQ-10
Closed
Switch S2 – PC Address
Sets PC dual RAM address. SC3.EXE currently defaults to D0000.
Switch
Switch
Address
1
2
3
4
Address
1
2
3
4
C0000
C
C
C
C
D6000
O
C
C
C
C3000
C
C
C
O
D9000
O
C
C
O
C6000
C
C
O
C
DC000
O
C
O
C
C7000
C
C
O
O
DF000
O
C
O
O
CC000
C
O
C
C
E0000
O
O
C
C
CF000
C
O
C
O
E3000
O
O
C
O
D0000*
C
O
O
C
E6000
O
O
O
C
D3000
C
O
O
O
E9000
O
O
O
O
O=Open; C=Closed *=Default
Switch S3 – Default Sign-on
Position 4 defaults to Open (backup sign-on enabled); Closed backup sign-on disabled.
Switch S4 – Weights and Measures
Set to Open for enable; Closed for disable.
Test Points - CPU PCB
Test Point
Function
Voltage
TP1
Ground
0 VDC
TP2
+5
+4.9 to +5.1 VDC
TP3
+12
+11.5 to +13.5 VDC
TP4
-12
-11.0 to –12.5 VDC