Olivetti PG L22 Special, Service Manual, Page: 79 / 165

Y103920-3 Service Manual
79
• HEAD Connector Pin Assignment
(To LED head)
1
3
5
7
9
11
13
15
17
19
21
23
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
C
O
C
C
O
O
O
O
O
O
O
O
O
O
C
O
C
O
C
O
C
O
C
O
Signal Function
SG
HDCLK-P
HDCLK-N
SG
HDLD
HDSTB1
HDDATA3
HDDATA2
HDDATA1
HDDATA0
HDSTB0
HDSTB3
HDSTB2
+3.3V
0VPHD
HEAD
0VPHD
HEAD
0VPHD
HEAD
0VPHD
HEAD
0VPHD
HEAD
Ground for Logic
Clock
Clock
Ground for Logic
Load
Hsync/CSN
Data 3
Data 2
Data 1
Data 0
Strobe/SI
SCLK
SO
+3.3V for Logic
Ground for LED
+5V for LED
Ground for LED
+5V for LED
Ground for LED
+5V for LED
Ground for LED
+5V for LED
Ground for LED
+5V for LED
PIN NO. I/O*
2
4
6
8
10
12
14
16
18
20
22
24
* O: Out
C: Common