NEC Advanced Personal Computer System Reference Manual page 84

CONTROLLER PCB
GDC
PIN ASSIGNMENT
1
CN4
10
12
16
18
20
~
Z
U
BRIGHTNESS CONTROL
CRT
DISPLAY
UNIT
INTERNAL
POWER
SUPPLY
BRIGHTNESS ADJUSTMENT
GROUND
/
A
1
/..--1
B
2
MONOCHRO ME
{r\
C
3
CRT
\
/
DISPLAY
D
4
UNIT
\! ./
.... _- GROUND E
5
HORIZONTAL DRIVE
F
6
NOT USED
7
VIDEO
J 8
VERTICAL DRIVE
K 9
GROUND
L
10
Figure 3-9 Monochrome-CRT Display Interface
Controller PCB
3-19