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FUSE F940
F940
220V 1A MEDIUM BLOW
FL950
2 AMP
110V 2A SLOW BLOW
150VA MAX
CGND
50/60 Hz
RT820
5
S930
POWER
R822
C820
E820
10M
.15UF
E920
J810
1
2
P810
3
110V
J820
1
220V
2
3
R152
10.0K
COM
HOUSEKEEPING SUPPLY
TRANSFORMER SWITCHING
R153
84.5K
COM
VREF
C727
.1UF
COM
R622
3.32K
U722
UC3844
4
8
RT/CT
VREF
2
6
VFB
OUT
C621
4700PF
3
ISEN
R722
7
10.0K
VCC
1
5
COMP
GND
COM
C722
470PF
R742
30.1K
PULSE WIDTH MODULATOR
R619
10.0K
VREF
VREF
VREF
R743
R717
8
18.2K
121K
2
COM
1
3
R718
VREF
255K
4
U615A
LM393
R616
COM
4.75K
R615
9.09K
COM
SPG 1000
NOT INSTALLED
R701
4.75K
R818
R865
150K
C865
C943
470K
390UF
L700
CR820
R819
150K
CGND
R845
C845
DS720
C944
470K
390UF
R700
4.75K
AC INPUT
&
LINE RECTIFIERS
W500
R921
150K
1W
CR500
T1
1
7
8
R656
C657
C500
.1UF
680PF
100
2
9
3
10
COM
L656
11
CR600
4
12
10UH
6
C656
5
COM
100UF
VISUAL AID
Q648
C650
.47UF
COM
HEATSINKS
G
S
FOR Q648
D
H4
H3
CR649
R100
C135
VREF
R215
590
470PF
10.0
Q648
R621
CR648
10.0K
COM
R630
COM
COM
.51
COM
CR200
Q100
R121
221
R625
1.21K
R110
124
U520
MOC1005
5
VREF
4
6
NC
R620
2.74K
VREF
C717
.47UF
R617
COM
5
Q717
10.0K
7
+5V ERROR AMP
6
&
U615B
FEEDBACK
LM393
R720
C521
5.62K
270PF
COM
COM
C5
.022UF
CGND
C700
1UF
C6
.022UF
COM
HEATSINKS
FOR CR575
C575
R320
.001UF
100
H6
H5
CR575
C350
C475
C464
C370
C360
.1UF
2700UF
2700UF
2700UF
2700UF
HEATSINKS
FOR CR320
H1
H2
C142
C145
C225
C143
.1UF
2700UF
2700UF
CR320
2700UF
C942
R922
.001UF
100
CR150
T2
C230
R125
.47UF
604
C200
.1UF
R105
8.25K
C222
R222
CR160
.001UF
100
U200
UC3843
4
8
RT/CT
VREF
R250
20.0
Q250
2
6
VFB
OUT
3
ISEN
R150
7
33.2K
VCC
1
5
COMP
GND
C151
.001UF
R140
C105
750
2200PF
R255
R260
C130
R135
.001UF
C220
10.0K
.27
10.0
.47UF
R923
1
2.74K
2
U723A
8
R316
LM358
3
R415
1.00K
1
1K
2
R925
4
R315
2.00K
2.74K
R314
C415
R416
3
10.5K
.0033UF
1.00K
C320
2.2UF
1
U410
431C
2
TP150
VISUAL AID
Q127
+/–5V OUTPUTS
C
G
TP140
A
L258
5UH
+5V
A
C254
C358
C480
C481
2700UF
2700UF
2700UF
VR120
2700UF
Q127
5.1V
C
G
C120
R120
.1UF
1.00K
L230
C144
C325
C253
5UH
2700UF
2700UF
2700UF
2
-5V
+5V
NOT INSTALLED
TP137
+/–12V OUTPUTS
TP180
L150
U150
100UH
LM2940-12
C150
C160
C180
C170
CR170
.1UF
47UF
1000UF
47UF
L162
C182
C172
C152
C162
CR180
100UH
.1UF
47UF
1000UF
47UF
U152
LM2990T-12
TP182
NOT INSTALLED
FAN DRIVE
W390
U370
0 OHM
7812
POWER SUPPLY
J160
34
+5V
33
32
31
30
29
28
Q718
27
MC34064
26
J160
1
25
24
CONNECTS
TO J3
23
22
21
5
20
3
19
18
A2
DIGITAL
17
16
BOARD
-5V
15
14
13
12
11
+12V
10
9
8
7
6
-12V
5
4
3
2
+12V
1
-12V
J370
2
2
1
1
C365
47UF
NOTE:
SEE PARTS LIST FOR
EARLIER VALUES AND
SERIAL NUMBER RANGES.
A4 POWER SUPPLY
1
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