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+11V
R70
10
CR16
CR17
CR18
ALL CIRCUITRY TO THE
LEFT OF THE ISOLA
TION
BOUND
ARY IS AT POWER LINE
POTENTIAL AND REQUIRES
AN ISOLATION TRANSFORMER
TO SERVICE.
CAUTION
:
MOUNTING
C74
.022UF
REAR
PANEL
J8
5 OHM COLD
90-250V
C75
.068UF
F1
2A
C66
.022UF
R118
121K
R117
121K
R123
CR32
CR33
CR34
CR35
DS7
R116
8
L8
1MH
C71
330UF
SNUBBER
INSTALLED
NORMALLY
BOUNDARY
ISOLATION
C52
.47UF
12
J7
P9
OUTPUT FIL
TERS
C
A
H
L4
47UH
C31
560UF
CR16
W3
0 OHM
+11V
+11A
C34
100UF
B1
C40
100UF
1
2
J5
W2
0 OHM
R69
4.7
C32
10UF
-11A
-11V
+40VA
+40V
+5V
C37
100UF
C35
330UF
H
H
L3
4.7UH
L6
47UH
C41
560UF
L5
47UH
C33
10UF
C29
1000UF
C36
1000UF
CR18
CR19
CR17
L7
4.7UH
C51
.47UF
C59
330PF
3
10
8
14
13
12
11
9
2
1
4
5
6
7
T3
CR22
CR25
CR23
INSTALLED
NORMALLY
+16V
2W 5%
R120
100K
R122
100K
R88
2.4K
+16VPRI
C62
330UF
12
J6
P8
5.6V
R119
150K
R121
150K
+5VC
VR3
SHUTDOWN LOGIC
R99
2.00K
+5VPRI
R113
499K
R112
499K
+5VPRI
CR30
R111
44.2K
C72
100PF
R109
301K
6
7
1
U7B
LM339
R108
2.00K
R101
2.00K
+5VPRI
+16VPRI
+5VPRI
R115
147K
CONTROLLER
R94
40.2K
C53
470PF
COMP
1
VFB
2
ISEN
3
RT/CT
4
REF
8
VCC
7
OUT
6
GND
5
U6
UC3842
+5VPRI
Q15
SWITCHER
BASE DRIVE
C63
.1UF
C64
.1UF
+5VPRI
+16VPRI
+16VPRI
CR24
CR26
H
Q14
TP2
5.1V
OVERVOL
TAGE
PROTECTION
G
A
Q11
R63
10.0
R64
10.0
+5V
+5V
VR1
Q11
W1
0 OHM
R52
1.00K
+5V
+5D
+5VA
C21
10UF
.2V
VOLT
AGE
REFERENCE
PROTECTION,TOUCH
TO TEST OVERVOL
T
NOTE:
R74 AND R78 TOGETHER
WITH SCREWDRIVER TIP .
R80
24.9K
C43
.1UF
+5V
K
KA
G
NC
ERROR AMPLIFIER
R62
100
C42
.01UF
R77
45.3K
DS6
BOUNDARY
ISOLATION
R91
1.00K
R96
22.1
R90
.51
CR28
R92
1.33K
C57
.033UF
C55
150PF
R97
2.21K
R93
178
IF V > 1V = SHUTDOWN
C60
.0047UF
R98
4.53K
+5VPRI
2.5V
+3V
C67
100PF
R87
10.0K
R107
3.01K
C68
100PF
8
9
14
U7C
LM339
C65
.1UF
R102
1.00K
+5VPRI
R105
301K
R100
100K
CR31
R106
33.2K
R110
22.1K
C70
.1UF
4
5
2
3
1
2
U7A
LM339
R86
4.32K
C69
.1UF
11
10
13
U7D
LM339
R114
33.2K
+5VPRI
+5VPRI
ERROR VOLTAGE
NC
NC
R95
4.99K
+5VC
TRANSFORMER DRIVER
NC
NC
C
L
1
1
CX
6
RX
7
B
10
A
9
Q
12
Q
5
U5B
74HC221
NC
1
2
5
4
6
U4
MOC1005
+5VPRI
R76
2.00K
R72
10.0K
R71
2.00K
C38
.1UF
R75
15.0K
2
5
6
3
U3B
LM10
R79
1.00K
+5V
+5V ADJ
NC
2.5V
<22>
D5
A4
R78
2.15K
R74
10.0K
8
7
1
4
U3A
LM10
R73
50K
FOCUS
+5V
NC
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
J4
CONNECTS
A3
MAIN
BOARD
TO J6
J4
<11>
ON
+100V
+11V
-11V
+40V
+5V
<22>
ZAXIS
SECONDARY GROUND
TEST JUMPER
ON
1
2
J3
TP1
C45
.1UF
C54
.1UF
C44
.0047UF
C47
.047UF
R124
22.1K
R82
22.1K
R84
2.74K
+5VC
Q13
T2
R81
22.1K
C49
.1UF
C46
.1UF
R85
1.00M
R83
221K
C48
.1UF
+5VC
+5VC
Q12
CR20
LINE SIDE COMMON
NC
C
L
3
VCC
16
GND
8
CX
14
RX
15
B
2
A
1
Q
4
Q
13
U5A
74HC221
C61
.1UF
R103
10.0K
C76
.1UF
R125
1.00M
+5VPRI
R89
68.1K
C58
.047F
C56
47UF
R104
332K
CR29
CR21
NC
PR
4
D
2
CK
3
CL
1
VCC
14
Q
5
Q
6
GND
7
U8A
74HC74
+5VC
+5VBU
CR27
PR
10
D
12
CK
11
CL
13
VCC
7
Q
9
Q
8
GND
7
U8B
74HC74
+5VBU
1740A/1750A/1760–SERIES
TP3
REV APR 1994
LOW VOLTS POWER SUPPL
Y <21>
AND SERIAL NUMBER RANGES.
SEE PARTS LIST FOR EARLIER VAL
UES
NOTE:
PART OF A1 POWER SUPPL
Y
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com
Содержание 1740A Series
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