3KH
2-2-3
Connector
Pin No.
Signal
I/O
Voltage
Description
YC1
A1
NC
-
-
Not used
Connected
to the
machine
main PWB
(via inter-
face PWB)
A2
NC
-
-
Not used
A3
AUDIO
O
3.3 V DC
Speaker control signal
A4
+3.3 V
I
3.3 V DC
3.3 V DC supply
A5
GND
-
-
Ground
A6
A13
-
-
Not used
A7
A11
I
3.3 V DC
Address bus A11
A8
A9
I
3.3 V DC
Address bus A9
A9
GND
-
-
Ground
A10
A6
I
3.3 V DC
Address bus A6
A11
A4
I
3.3 V DC
Address bus A4
A12
A2
I
3.3 V DC
Address bus A2
A13
GND
-
-
Ground
A14
OP2IFn
I
3.3 V DC
Fax control signal
A15
OP2IRn
O
3.3 V DC
Fax control signal
A16
RDY
I
5 V DC
Fax ready signal
A17
GND
-
-
Ground
A18
IORn
I
5 V DC
Fax control signal
A19
RESETn
I
5 V DC
Reset signal
A20
D15
I
5 V DC
Data signal D15
A21
GND
-
-
Ground
A22
D12
I
5 V DC
Data signal D12
A23
D10
I
5 V DC
Data signal D10
A24
D8
I
5 V DC
Data signal D8
A25
GND
-
-
Ground
A26
D5
I
5 V DC
Data signal D5
A27
D3
I
5 V DC
Data signal D3
A28
D1
I
5 V DC
Data signal D1
A29
GND
-
-
Ground
A30
NC
-
-
Not used
B1
NC
-
-
Not used
B2
TXDREQ
O
3.3 V DC
DREQ transmission signal
B3
+3.3V
I
3.3 V DC
3.3 V DC supply
B4
A15
I
3.3 V DC
Address bus A15
B5
A14
-
-
Not used
B6
A12
-
-
Not used
B7
A10
I
3.3 V DC
Address bus A10
B8
A8
I
3.3 V DC
Address bus A8
B9
A7
I
3.3 V DC
Address bus A7
B10
A5
I
3.3 V DC
Address bus A5
B11
A3
I
3.3 V DC
Address busA3
B12
A1
I
3.3 V DC
Address bus A1
B13
+3.3V
I
3.3 V DC
3.3 V DC supply
B14
OP2ACKn
O
3.3 V DC
Fax control signal
B15
+5V
I
5 V DC
5 V DC supply
B16
RXDREQ
O
5 V DC
DREQ reception signal
B17
RXDMACKn
I
5 V DC
DMACK reception signal
B18
IOWn
I
5 V DC
Fax control signal
Summary of Contents for FaxSystem(M)
Page 1: ...SERVICE MANUAL Published in March 2007 843KH113 3KHSM063 Rev 3 FaxSystem M...
Page 4: ...This page is intentionally left blank...
Page 10: ...This page is intentionally left blank...
Page 12: ...3KH 2 2 2 Operation of the PWBs 2 2 1 Fax control PWB 2 2 1 2 2 2 NCU PWB 2 2 5...
Page 26: ...3KH 2 1 2 8 This page is intentionally left blank...
Page 76: ...3KH 1 5 2 This page is intentionally left blank...
Page 78: ...3KH 1 6 2 This page is intentionally left blank...
Page 80: ...3KH 2 1 2 This page is intentionally left blank...
Page 87: ......
Page 88: ......