Fender Mustang III Schematic
MUSTANG III
!
!
WHITE
BLACK
GREEN/YELLOW
SGND
+27V
-27V
+18V
-18V
L
N
CHGND
+27V
-27V
SGND
-18V
+18V
N
L
E
1
2
3
4
POWER_SWICH
CHGND
L
N
CHGND
1
SMPS + AMP Schematic Diagram 1/3
MUSTANG III
/3
FROM PRE-AMP SECTION
Left
GND
GND
+15V
-15V
8 OHM
TO PRE-AMP SECTION
VDD
Right
GND
8 OHM
+8V
DGND
PA_MUTE
For MUS-III only
For MUS-IV/ V only
AC_SENSE
R-SPK+
R-SPK-
L-SPK+
L-SPK-
For MUS-IV/ V only
Location MUS-III MUS-IV / V
R421
R423
R455
R429
C411
C423
R418
C451
R436
R438
2.7K
8.2K
OPEN
8.2K
OPEN
47n
2.7K
47P
22K
0R
1.8K
7.5K
4.7K
7.5K
220n
220n
1.5K
100P
10K
10K
R442 11K 1.1K
R457 0R OPEN
C444 330P 470P
C446 330P 470P
C457 330P 470P
C458 330P 470P
Z400 18V 30V
R472 0 ohm0.1 ohm/5W
R426 1K1.5K
C480 220PN/A
C481 220PN/A
Note: 1. DO NOT STUFF THESE PARTS WITH "*"
2. SEE TABLE FOR SOME STUFFED PARTS W/O VALUE
R432
1K
R414
10R/1W
R413
10R/1W
R439
30K
R412
10R/1W
R411
10R/1W
R416
100R
R427
100K
R426
R452
10R/3W
R453
10R/3W
R424
39K
R425
3.9K
R459
4.7k
C441
100n
C409
100n
C445
47p
C459
470n
C407
100n
C456
15n
C457
C458
C425
0.33u/5%
C462
0.33u/5%
C444
C446
C416
100n
C402
100n/250V
C455
15n
C406
100n
C426
0.33u/5%
C463
0.33u/5%
C405
100n
C401
100n
C400
100n
C404
100n
C403
100n
C415
100n
C414
100n
C417
100n
C418
100n
C419
100n
C410
100n
C421
100n
C422
100n
C447
100n
C448
100n
C408
100n
C439
470p
C450
100p 5% X7R
C440
470p
C451
C453
100p 5% X7R
C452
100p 5% X7R
C435
4.7u/25v
C436
4.7u/25V
C454
47uF/100V
C433
220uF/50V
C434
220uF/50V
C427
1000uF/50V
C428
1000uF/50V
C449
100uF/25V
C460
220uF/25V
C461
220uF/25V
L405
21uH
L404
21uH
L400
FERRITE BEAD
L401
FERRITE BEAD
Z400
1234567
8
CN400
PIN-8
123
4
CN401
PIN-4
R400
22R/2W
R401
22R/2W
Q401
KTC3875
Q400
KTC3875
R419
10K
R434
22K
R449
0.1R/5W
R441
1.1k 1%
R437
10K 1%
R440
1.1k 1%
R435
10K 1%
R417
1.5K 1%
R422
7.5k
R420
1.8K
R430
3.3K 1%
R428
7.5K 1%
R443
1.1K 1%
R438
R442
R436
R418
R423
R421
R431
3.3K 1%
R429
R447
0R
R455
Z401
5.6V
1
2
CN402
1
2
CN403
L406
16uH
L407
16uH
3
IN
1
ADJ
2
OUT
U403
LM317
2
IN
1
ADJ
3
OUT
U404
LM337
2
3
1
84
U401-A
TL072
6
5
7
U401-B
TL072
2
3
1
84
U402-A
TL072
6
5
7
U402-B
TL072
2
IN1P3IN1M
8
VDDP1
19
SGND
4
N.C
22
IN2P
11
VSSP1
5
N.C
6
N.C
17
VSSD
20
VDDA
21
IN2M
18
VSSA
1
OSC
23
MODE
10
OUT1
9
BOOT115BOOT2
14
OUT2
16
VDDP2
13
VSSP2
7
PROT
12
STAB1
U400
TDA8950J-1
C471
100n
C470
100n
C469
100n
C468
100n
C472
100n
C473
100n
2
3
1
8 4
U405-A
BA4560
6
5
7
BA4560
R465
10K 0.1%
R466
10K 0.1%
R467
10K 1%
R470
10K 1%
R402
10R/1W
R403
10R/1W
C411
C412
150n
C423
C424
150n
R468
1k
C429
120p
C430
120p
SCREW7 SCREW8
R471
3.9k
R457
R464
*
R463
*
C466
*
C467
*
D401
ES1D
D402
ES1D
D403
ES1D
D404
ES1D
R448
0.1
R460
0.1
C464
47uF/50V
C465
47uF/50V
D405
1N4148
D406
1N4148
R472
1
8
R473-A
*
3
6
R473-C
*
7 2
R473-B
*
5 4
R473-D
*
R474
10K 0.1%
R475
10K 0.1%
R476
0R
R478
2.2K
R477
200
R479
2.2K
R480
200
R460A
0.1
R448A
0.1
2
1
HS-15V
HS-2
1
2
R490
*
1
2
R491
*
C480
C481
C482
220p
C483
220p
FB_GND
FB_GND
FB_GND
FB_GND
VDD
VDD
VSS
VSS
VDD
VDD
VDD
VSS
VSS
VSS
VDD
VDD
VSS
VSS
VDD
VSS
VDD
VSS
PGNDPGND
FB_GND
PGND PGND
VSS
FB_GND
FB_GND
FB_GND
FB_GND
VDD
VSS
SGND
VSS
VDD
+15V
+15V
+15V
+15V
-15V
-15V
-15V
-15V
VDDP
VDDA
VSSA
VSSP
VDDP
VDDP
VDDA VSSA VSSA
VSSPVDDP
VDDP VSSP
VSSA VDDP VSSP
VDDP VSSP
+8V
VSSP
+15V
-15V
VDD
AC-SENSE
VDD
VSS
VDD
VSS
PRE
PRE
PRE
PRE
PRE
PRE PRE
PRE
PRE
PRE
PRE
SMPS + AMP Schematic Diagram 2
2
MUSTANG III
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
EGND
For 220-240V units,R303-306 are all 150k
For 100-120V units, R303 & R304 are 36k
(R305 & R306 are not used for 100-120V units)
JP301 used for USA/JAPAN version only
GND
Black White
15V
For Mustang V only
Note: 1. DO NOT STUFF THESE PARTS WITH "*"
Location MUS-III MUS-IV / V
VDD
VSS
R307
C370
C371
C375
C376
Z302
R361
R338
+24V
-24V
+37V
-37V
0 OHM1.5 OHM
100n/50V
100n/50V
100n/50V
100n/50V
100n/100V
100n/100V
100n/100V
100n/100V
30V 47V
301K
150K110K
220K
R384 5.23K6.2K
C351 47p/1kV150p/1kV
R374 39K 150K
C361 1000p/1kV 2200p/1kV
R329 75K/3W 220K/3W
R329A OPEN 220K/3W
R352 0.22
0.22/M4, 0.15/M5
R352A
N/A N/A
YC300
680P/Y1 1000P/Y1
YC301
680P/Y1 1000P/Y1
R326 22 ohm 47 ohm
R350 510 ohm 1K
2. SEE TABLE FOR SOME STUFFED PARTS W/O VALUE
Q302 SPP08N80C3 SPP11N80C3
L307 180uH 240uH
DZ300 1.5KE300A M4:1.5KE300A
M5:1.5KE400A
C350 680uF/400V M4:680uF/200V
M5:1000uF/200V
C360 680uF/400V M4:680uF/200V
M5:1000uF/200V
Note For Transformer:
Only for M3, Shileding Foil connect to Pin 8, detail refer to Spec.
Only for M4/5, Shileding Foil connect to Pin 6, detail refer to Spec.
A
B
BEAD
BEAD
R344
1K
R335
51R/1W
R359
*
R360
2K
R349
1R
R336
51R/1W
R351
2.7K
R329
R324
1K/1W
R361
R326
R352
R337
51R/1W
R328
6.8R/1W
R346
1K
R334
51R/1W
R384
R327
22
R363
330K
R364
330K
R362
330K
R374
R381
100K
R377
100K
R379
100K
R380
100K
R378
100K
R385
100K
R383
100R
R325
33R/1W
R365
200K
R368
200K
R369
560K
R370
36K
R366
220K
R355
100K
R345
100K
R354
0R
R338
R330
*
R301
330K
C385
100n 5%
C386
*
C384
*
L309
1mH
3
1
2
U304
TL431C-SF/TL432BIDBZR
L310
2X10mH
L308
2X10mH
TH302
NTC 25deg@2.5R
TH301
PTC 25deg@470R
TH300
PTC 25deg@470R
CX300
330n/X1
YC300
YC301
C359
15n/630V
C358
15n/630V
C356
15n/630V
C357
15n/630V
C391
104
C392
104
C378
150P
C363
1n
YC303
680P
C361
C364
1n
C375
104
C376
104
CX301
*
YC302
680P
C372
104
C370
104
C371
104
C373
104
C362
1n
C365
1n
C393
104
C360
C366
1000uF/50V
C387
10uF/50V
C379
47uF/50V
C381
100uF/35V
C368
1000uF/50V
C382
220uF/25V
C367
1000uF/50V
C369
1000uF/50V
D303
1N4148
D305
UF1K
D304
UF1K
D300
1N4148
D302
1N4148
D310
BAV21
D311
BAV21
D306
SM310A
D307
SM310A
D315
ED1004CS
D314
ED1004CS
D312
ED1004CS
D313
ED1004CS
D316
1N4148
D317
MBR0520
Q311
KTC3875
Q312
KTC3875
Q308
KTC3875
Q309
KTC3875
Q310
KTA1504
Q303
KTA1504
Z310
5.1V
1 2
Z305
15V
12
DZ300
1 2
Z309
15V
Z302
Z306
3V
1
23
4
B300
U302-A
LTV817
U302-B
LTV817
U301-B
LTV817
U301-A
LTV817
Q302
1
ADJ2FB3CS4GND
5
DRV
6
VCC
8
HV
U303
NCP1271D65R2G
B
A
1
3
5
6 9
71011128
T300
EER-35
GAP302
GAP
GAP303
GAP
GAP300
GAP
GAP301
GAP
1
2
3
J300
F300
6.3A/250V
1
SCREW1
1
SCREW2
1
SCREW3
1
SCREW4
1
SCREW5
1
SCREW6
C350
JP301
R323
10R/1W
C351
C377
1n
R305
R303
R304
R306
D301
1N4148
U305-A
U305-B
R300
330K
R302
330K
1 2
L307-A
34
L307-B
5 6
L307-C
L2_6P
1
HS301
HS-1
R-HS
0R
R356
2.7K
D308
1N4148
C390
224
R329A
R307
R352A
C380
0R
D320
1N4148
C399
1uF
R390
12K
1
2
R350
1
SCREW9
AUX+
AUX+
+8V
L N
VDD
VSS
15V
15V
FB
FB
HV
HV
SGND
SGND
GND
GND
GND
GND
GND
GND
GND
SGND
SGND
VSEN
VSEN
EGND1
SGND
AC-SENSE
3
SMPS + AMP Schematic Diagram 3/3
MUSTANG III
PCB Bottom Side PCB Top Side
PCB PAMP
4
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