
100NF
25V
100NF
25V
100NF
25V
100NF
25V
100nF
25V
100nF
25V
100nF
25V
100nF
25V
VRAM
+5VD
+5VD
220uF
25V
10nF
20K
20K
100K
30K
1%
82K
1%
+5VD
10K
DTC143ZKA
+5VD
10K
DTC143ZKA
BAS16
200K
+5VD
18K
+12VP
100K
20K
+12VP
SI9956DY
+5VD
+5VD
+5VD
BAS16
BAS16
10K10K
+5VD
10K
+5VD
10K
+5VD
10K
+5VD+5VD+5VD
BAS16
+12VP
+5VD
LM392
BAS16
+12VP
+12VP
+5VD
+12VP
HC14
SI9956DY
+5VD
20K
+5VD
KBS-20DB-4P
+5VD
+5VD
DTC143ZKA
2K21 2K21
74HC4060
GND
OSCIN
OSCOUT1
OSCOUT2
RESET
VCC
Q4
Q5
Q6
Q7
Q8
Q9
Q10
Q12
Q13
Q14
49K9
HC14
HC14
3K01
PALCE16V8
CLK
OE
I/O5
I7
I/O0
I/O1
I2
I3
I4
I5
I6
I1
I8
I/O2
VCC
GND
I/O4
I/O3
1%
1uF
SI9956DY
SI9956DY
DTA143XKA
SI9410DY
0R1
56K
1%
A'
B
B'
A
A
A'
B
B'
A
A'
B
B'
A
A'
B
B'
A
A'
B
B'
COM
CHA
CHB
HC14
10K
10K
HC14
LM392
VALVE SENSE LEVELS
0 = VALVE ON
1 1 = 3.73V
1 0 = 2.22V
1.25A = OVERCURRENT
U42
18
139
3
probe is in the holder
DTC143ZKA is a digital transistor with a 4K7 base resistor and a 47K base pull-down resistor
STAT
START/STOP
POWER
ROTOR
ALARM SILENCE
DTA143XKA is a digital transistor with a 4K7 base resistor and a 10K base pull-down resistor
Switch is closed when
DO NOT POPULATE
PROBE1
4
148
19
2.63V
0 0 = 0.00V
0 1 = 1.51V
VALVESENSE
DEFLATE
DUMP
DO NOT STUFF FOR PRO110/310
1
8
3
2
4
1
U23
OVERCURRENT
DUMP_VALVE
DEFLATE_VALVE
56
U15
R61
R131
12
U15
1
2
3
4
5
6
PL2
1
2
3
SW8
SW5
SW1
SW3
SW2
SW4
1
2
3
4
5
6
7
PL3
OVP_OVR
R102
3K01
R54
R8
5
6
7
8
2
3
4
Q8
Q5
3
4
5
6
Q1
1
2
7
8
Q1
C62
1
2
3
J1
R176
15K
PUMP-
1
11
17
8
12
13
3
4
5
6
7
2
9
14
20
10
16
15
U42
R103
11 10
U15
98
U15
R79
8
11
10
9
12
16
7
5
4
6
14
13
15
1
2
3
U1
R31R30
Q22
H8_RES[L]
1
2
WD1
PUMPC
R173
PNEU_RESET
FLT_0VP[L]
3
4
5
6
Q2
DEFLATE_VALVE_12
RESET2[L]
RESET[L]
34
U15
HALT[L]
D5
5
6
7
U23
D4
R132 R130 R133 R137 R136
D8
D7
1
2
7
8
Q2
R170
R142
R106
R148
PUMP_SWITCH
UNFIL_0VP[L]
LATCHED_0VC
LATCHED_0VP
12V_ON
DUMP[L]
PUMP_ON
DEFLATE
FAILSAFE[L]
D6
Q20
R134
Q21
R135
SEC_ALARM
R5
R150
R143
R171
R172
C78
C112
POWER[L]
DUMP_VALVE_12
VALVESENSE
C25
C32
C29
C31
C26
C27
C28
C30
ROTOR[L]
SWBUS4
SWBUS5
SWBUS6
SWBUS7
SWBUS[0:7]
SWBUS0
SWBUS1
SWBUS2
SWBUS3
Schematic, PRO Monitor Series 1-400
Main Board Assembly
P/N: 2008238-001 C
Sheet 5 of 9
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