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Gasboy CFN Series Diagnostic Manual User Manual

Page 348

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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

See also other documents in the category Gasboy Hardware: