BGW 750D, Owner'S Manual, Page: 40 / 43

TANT
GRN
GRN
GRN
YEL
GRN
GRN
GRN
YEL
GRN
GRN
YEL
GRN
GRN
GRN
GRN
GRN
51 dB DISPLAY
RED
10V
1N751
TANT
GRN
YEL
GRN
GRN
GRN
RED
GRN
YEL
GRN
GRN
GRN
GRN
GRN
YEL
51 dB DISPLAY
GRN
GRN
GRN
35V
4X1N4004
D336 35V
AC
AC
D335
TANT
POWER SUPPLY
D334
IDLE
4.9V
0.5W
POWER ON
INDICATORS
0.05V
10V
XFMR OVER TEMP
0.5W
15.0V
INDICATOR RED
TURN-ON DELAY / TRANSFORMER OVER TEMP / IDLE BLINKING
GRN
1N751
TANT
GRN
9.7V
TANT
0 V
DC OFFSET
14.9V
25V
0.5W
RED
1/2W
DC OFFSET
INDICATOR
LEFT
RIGHT
RED
RED RED
RED
CLIPPING INDICATOR
POWER SUPPLY IMBALANCE
RED
0.5W
DC OFFSET
0.5W
14.9V
RED
0 V
25V
INDICATOR
TANT
DC OFFSET
1/2W
350A
onl
y
JP400
JP300
350A
onl
y
TURN-ON DC OUTPUT
B-
50V
1N4740
B+
1N4740
5.0V
+10V
+1V
CLOSE
100 DEG
NORMAL
48dB-Display A
48dB-Display
C
1 1 Monday, September 22, 2003
Title
Size Document Number Rev
Date: Sheet of
BGW Systems, Inc.
13130 Yukon Ave.
Hawthorne, CA 90250
+16V
+16V
B (+5.0V)
B
(
+
5.0V
)
B (+5.0V)
B
(
+
5.0V
)
B (+5.0V)
+16V
+16V
+16V
+16V
R323
10K
D419
D308
D407
Q328
2N4401
D303
R305
10K
N.C.
Q302
2N4401
R425
100K
D317
Q404
2N4401
D316
R-HI
REF OUT
REF ADJ
MODE R-LO V-
V+
SIGNAL
IC401
LM3915
1
2 4 9
8
7
6
5
10
11
12
13
14
15
16
17
18
3
D421
R330
0 Ohm
J5
D311
D313
R406
10K
+
-
IC303B
TL074
5
6
7
+
C307
47uF
R407
10K
R409
10K
R454
22K
R353
22K
+
- IC305C
LM339
9
8
14
D408
R345
1K
R405
10K
D426
1N4148
R341
47K
J6
+
C304
10uF/50V
D427
1N4148
D416
J302
A
B
C
Q303
2N4403
+
C405
1uF/25V
+
C305
1uF/25V
D412
R342
100K
+
-
IC304B
LM358
5
6
7
R340 47K
Q401
2N4403
+
C408
10uF
JP300-2
D418
R343
100K
J7
D330
D314
D420
N.C.
R304
10K
+
C309
47uF
+
- IC305D
LM339
11
10
13
D323
+
-
IC303C
TL074
10
9
8
R420
10K
B
R301
680
D324
D312
R354
22K
D415
Q403
2N4403
R320
10K
R418
820
R419
4.7K
D306
R346
1K
Q402
2N4401
R412
820
D326
1N4148
D307
D310
R319
4.7K
R426
1K
R348
1K
D320
R416
470
R453
22K
Q312
2N4401
Q305
2N4403
R424
240K
R322
180
R318
820
R423
10K
R347
3.9K
D402
+
_
D333
Q311
2N4401
R352
1M
B
R-HI
REF OUT
REF ADJ
MODE R-LO V-
V+
SIGNAL
IC402
LM3915
1
2 4 9
8
7
6
5
10
11
12
13
14
15
16
17
18
3
D321
D413
R338
47K
R350
47.5K 0.5W
+
C302
1000uF
R351
1M
R327
680
R313
4.7K
Q301
2N4403
Q310
2N4403
D325
1N4148
R421
10K
R311
47.5K
R321
10K
R326
1K
+
-
IC305A
LM339
5
4
2
3
12
D302
R337
1K
Q405
2N4403
R404
10K
R315
10K
D417
16V
+
-
IC305B
LM339
7
6
1
R417
10K
R349
47.5K 0.5W
R325
100K
R414
10K
N.C.
R336
10K
B
D409
R353
680
JP300-1 R308
10K
+
C308
1uF / 25V
R317
10K
+
C308
10uF
Q407
2N4401
R422
180
R411
47.5K
R310
1.54K
R335
1K
+
-
IC303D
TL074
12
13
14
D403
D401
D322
J301
A
B
C
D
E
F
JP400-1
R-HI
REF OUT
REF ADJ
MODE R-LO V-
V+
SIGNAL
U12
LM3915
1
2 4 9
8
7
6
5
10
11
12
13
14
15
16
17
18
3
R307
10K
+
-
IC303A
TL074
3
2
1
4
11
D428
+
C404
10uF/50V
D309
R324
240K
R410
1.54K
D422
JP400-2
D301
R401
680
R339
10K
R303
10.0K
R306
10K
Q307
2N4401
R-HI
REF OUT
REF ADJ
MODE R-LO V-
V+
SIGNAL
U13
LM3915
1
2 4 9
8
7
6
5
10
11
12
13
14
15
16
17
18
3
Q309
2N4403
Q304
2N4401
F301
1.5A (fast)
R344
680
D305
R314
10K
B
R403
10.0K
R413
4.7K
+
-
IC304A
LM358
3
2
1
4
8
D404
Q306
2N4401
R331
10K R332
1K
D327
1N4148
D410
N.C.
R329
200K
+
C310
10uF
R415
10K
R400
11.8K
D405
J4
D304
R309
10K
R334
680
R300
40.2K
D411
D318
R328
1K
R408
10K
+
C301
1000uF
R402
40.2K
D414 R427
680
R302
11.8K
D439
D406
R316
470
D315
R333
10K
Q406
2N4401
R312
820
D329
1N4148