Page1of 2
Filename: serps-gpg1.tcw
SERPS-G
SCHEMATIC
7805
7812
ac
ac
BR805
-
+
7912
C3
0.1uF
C4
0.1uF
C1
C2
1000uF
+12V
+5V
GND
-12V
1000uF
C5
0.1uF
R20
10K
Q9
2N3903
+5V
10K
R1
R2
ZERO
OHMS
2N3903
RELAY 1
NOCNC
A
LAWSON
BOARD
TO
+12V
A
1
3
4
5
2
8
7
6
+8V
+8V
R18
1M
C10
.01uF
U1
555
TIMER
R17
10M
C8
0.2uF
C9
.01uF
+8V
R19 1K
IN
OUT
GND
Q1
REMOTESTARTCIRCUIT#1
10K
R3
R4
ZERO
OHMS
2N3903
RELAY2
B
LAWSON
BOARD
TO
+12V
B
Q2
10K
R5
R6
ZERO
OHMS
2N3903
RELAY 3
C
LAWSON
BOARD
TO
+12V
C
Q3
10K
R7
R8
ZERO
OHMS
2N3903
RELAY 4
D
LAWSON
BOARD
TO
+12V
D
Q4
10K
R9
R10
ZERO
OHMS
2N3903
RELAY 5
E
LAWSON
BOARD
TO
+12V
E
Q5
10K
R11
R12
ZERO
OHMS
2N3903
RELAY6
F
LAWSON
BOARD
TO
+12V
F
Q6
10K
R13
R14
ZERO
OHMS
2N3903
RELAY7
G
LAWSON
BOARD
TO
+12V
G
Q7
10K
R15
R16
ZERO
OHMS
2N3903
RELAY8
H
LAWSON
BOARD
TO
+12V
H
Q8
R23
10K
Q10
2N3903
+5V
1
3
4
5
2
8
7
6
+8V
+8V
R22
1M
C13
.01uF
U2
555
TIMER
R21
10M
C11
0.2uF
C12
.01uF
+8V
R24 1K
IN
OUT
GND
REMOTESTARTCIRCUIT#2
(MOMENTARYGROUNDINGOFTHE INPUT
PRODUCESA2SECONDNEGATIVEGOINGPULSE
ONTHEOUTPUTWHICHTRIGGERSTHE
LAWSONBOARDREMOTESTARTFUNCTION.)
(MOMENTARYGROUNDINGOFTHE INPUT
PRODUCESA2SECONDNEGATIVEGOINGPULSE
ONTHEOUTPUTWHICHTRIGGERSTHE
LAWSONBOARDREMOTESTARTFUNCTION.)
+12V, -12V&GROUND
SUPPLYPOWERTO
THELAWSONBOARD
C7
C6
0.1uF
0.1uF
NOCNC
NOCNC
NOCNC
NOCNC
NOCNC
NOCNC
NOCNC
0.75A
35V
35V
RESETABLEFUSES
0.75A
24VacFROM
IF-2430ON-BOARD
TRANSFORMER
Date: 12/20/97
By:R. Fenske
Rev.Date: 12/16/02
By:M.Watts
