90
Date:
May 7, 1996
Sheet
4
o
f
11
Size
Document Number
REV
B
ZD5015
C
Title
SCHEMATIC, MAIN BOARD 9180
(404) 587-4040
Roswell, Georgia 30076
33 Mansell Court
AVL Scientific Corp.
"+22V/12.5V"
1
2
C32
0.1uF
VALVE+
1
TP16
TP
Q8
2N3904
VIN
3
VOUT
2
A D J
1
U5
LM317
1
2
C31
0.1uF
1
2
R21
4.7K
ZHS2
HEATSINK
1
2
R18
200 1%
1
2
R20
1.5K
1
2
R19
1.82K 1%
VALVE-
+24V
OPEN1
OPEN2
1
2
R11
1K
1
2
R12
1K
Q9
MJE800
Q10
MJE800
1
2
C36
2.2uF/50V
1
2
C37
2.2uF/50V
1
2
C38
2.2uF/50V
VALVE DRIVERS
VALVEA-
VALVEB-
VALVEC-
VALVEV-
VALVER-
1
2
R13
1K
1
2
R14
1K
Q11
MJE800
Q12
MJE800
1
2
C39
2.2uF/50V
1
2
C40
2.2uF/50V
OPEN3
OPEN4
OPEN5
OVERTEMP-
SGND
1
2
R15
1K
Q13
MJE800
1
2
R16
10K
1
2
D19
1N750
SGND
THERM-
SBC PCB - VALVE DRIVERS - 9180, 81