78
Date:
April 10, 1996
Sheet
3
o
f
9
Size
Document Number
REV
B
VALVE DRIVERS
D
Title
SCHEMATIC, MAIN BOARD ISE/PH
(404)587-4040
30077
Roswell, Georgia
33 Mansell Court
AVL Scientific Corp.
"+22V/12.5V"
1
2
C32
0.1uF
1
TP16
UT35-017
VALVE+
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
R19
1.82K 1%
1
2
R20
1.5K
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
R20 WAS 1K
R17 WAS 100K
C R19 WAS 2.37K
OPEN5
OVERTEMP-
SGND
1
2
R15
1K
1
2
R16
360K
Q13
MJE800
1
2
R17
180K
SGND
THERM-
mb3.sch
SBC PCB - VALVE DRIVERS - 9120, 30, 40