2FT
2-3-6
Connector
Pin No.
Signal
I/O
Description
YC1
1
CCDO
I
CCDPCB image scanning signal
Connected
to the CCD
PCB
2
CCDON
-
Ground
3
CCDE
I
CCDPCB image scanning signal
4
CCDEN
-
Ground
5
+5V
O
5 V DC power supply for CCDPCB
6
SGND
-
Ground
7
+12V
O
+12 V DC power supply for CCDPCB
8
SGND
-
Ground
9
CCDCLK
O
CCDCLK signal
10
SGND
-
Ground
11
CCDCLKN
O
CCDCLKN signal
12
SGND
-
Ground
13
RS
O
CCDPCB RS signal
14
SGND
-
Ground
15
CP
O
CCDPCB CP signal
16
SGND
-
Ground
17
SH
O
CCDPCB SH signal
18
SGND
-
Ground
YC2
1
PDN
I
Laser sync signal
Connected
to the APC
PCB
2
SGND
-
Ground
3
OUTPEN
O
Laser diode output signal
4
SAMPLEN
O
Laser light signal
5
VDON
O
Image differential signal (negative)
6
VDOP
O
Image differential signal (positive)
7
+5V1
O
5 V DC power supply for APCPCB
YC5
1
SCAN7N
O
Key switch scan signal 7
Connected
to the opera-
tion unit
PCB
2
SCAN6N
O
Key switch scan signal 6
3
SCAN5N
O
Key switch scan signal 5
4
SCAN4N
O
Key switch scan signal 4
5
SCAN3N
O
Key switch scan signal 3
6
SCAN2N
O
Key switch scan signal 2
7
SCAN1N
O
Key switch scan signal 1
8
SCAN0N
O
Key switch scan signal 0
9
BUZERDRN
O
OPCB buzzer signal
10
+5V
O
5 V DC power supply for OPCB
11
SGND
-
Ground
YC6
1
POWERKEYN
I
Power key operating signal input
Connected
to the opera-
tion unit
PCB
2
LED0
O
LED lighting selection signal 0
3
LED1
O
LED lighting selection signal 1
4
LED2
O
LED lighting selection signal 2
5
LED3
O
LED lighting selection signal 3
6
LED4
O
LED lighting selection signal 4
7
KEY9
I
Key switch return signal 9
8
KEY8
I
Key switch return signal 8
9
KEY7
I
Key switch return signal 7
10
KEY6
I
Key switch return signal 6
11
KEY5
I
Key switch return signal 5
12
KEY4
I
Key switch return signal 4
13
KEY3
I
Key switch return signal 3
14
KEY2
I
Key switch return signal 2
15
KEY1
I
Key switch return signal 1
16
KEY0
I
Key switch return signal 0
Summary of Contents for KM-2550
Page 1: ...SERVICE MANUAL Published in June 2005 842FT112 Version 3 0 KM 2550...
Page 4: ...This page is intentionally left blank...
Page 10: ...This page is intentionally left blank...
Page 123: ...2FT 1 1 4 56 This page is intentionally left blank...
Page 249: ...2FT 2 3 2 Figure 2 3 2 Power source PCB silk screen diagram 220 240 V AC 120 V AC...
Page 267: ...2FT 2 3 20 Figure 2 3 10 Operation unit PCB silk screen diagram...
Page 282: ......
