Fender Rumble-15 Schematic
REV. APPROVEDDATEDESCRIPTION
R E V I S I O N S
PR848A
12348 7 6 5
06-AUG-09 dBL
DD
C
B
C1
2.2
R3
2.2k
VOLUME
VOL AT 50%
307mVAC
TP2
U1-C
10
8
TL074
9
R4
15k
C2
100pF
R5
CW
10kB
INPUT VOLTAGE
BLACK
WHITE
R7
100k
C3
2.2
R6
2.2k
100-120V
220-240V
1A 2A
POWER
SWITCH
192mVAC
TP3
VOL AT 50%
FUSE RATING
F500mA L 250V
F250mA L 250V
4B3B
R8
10k
F1 VALUE
.0022
C4
R9
4.7k
C7
.0033C8.0033
R10
20k
C5
1
R11
15k
C6
.22
R12
1.8k
R14
750k
R13
330k
INPUT VOLTAGE
220-240V
F1
WJ1
WJ2
BLACK
WHITE
BLACK
P1
WHITE
P2
145mVAC
TP4
U1-B
5
7
TL074
6
R58
5.6k
R15
4.7k
POWER TRANSFORMER
100V
120V
POWER XFMR
YELLOW
LABEL
057-RB15J
057-RB15U
057-RB15E
RED
RED
C42
C9
1
.001
C10
560pF
R21
150k
13
TL074
12
143mVAC
TONES AT 50%
R20
2.2k
C11
.0068
U1-D
TP5
C14
R26
82k
.1
R22
100k
C12
14
R23
33k
R25
33k
2.2
-12.5VDC
TP20
D14
R57
1M
C29
1
-12V
-12.4VDC
TP19
R56
C28
100k
470pF
-12V
R27
82k
3
TL074
2
R30
33k
C13
100pF
J111
Q1
U2-B
9
LM13700
O
B
12 15
16
R54
1.8k
Q2
MPSA63
R55
5.6k
+12V
C15
.1
U1-A
10
+
I
D
-
R32
R31
12k
12k
143mVAC
TP6
1
C18
22
R33
10k
14
R34
100
13
0VDC
TP18
R53
R52
4.7k
39k
C271C261C251C24
C16
220pF
R35
1k
J2
R
AUX IN
L
C17
220pF
+22V
C20
.1
P6 PW6
D3 D4
R36
47k
R51
R50
39k
39k
+5.8VDC
TP17
R38
47k
R37
1k
C21
.1
-22V
C19
22
D9
R47
1.8k
D10D11D12D13
1
R48
8.2k
-12V
R49
39k
2
TDA2050
1
BREAKAWAY
+10.4VDC
TP16
U2-A
LM13700
O
B
5 2
1
R46
33k
8
5
3
I
+0.6VDC
TP14
7
+
D
-
-0.6VDC
TP15
3
4
+22V
D5
1N4003
U3
4
D6
1N4003
-22V
+22V
R42
33k
D7
R43
10k
R44
10k
D8
R45
33k
-22V
6.70VAC
TP7
R40
Fr100
R39
2.2
1W
R41
10k
2W
C23
C22
.47
63V
.01
J3
HEADPHONES
P4
+
WHT
TO 8ohm SPEAKER
P5
-
BLK
MAX HP OUTPUT, Vo = 1.88Vrms (2.66Vpk)
110mW @ 0.1% THD INTO 32ohms (MIN) PER CHANNEL
BOTH CHANNELS DRIVEN, 100Hz
OUTPUT POWER
8ohm RESISTIVE LOAD CONNECTED AT P4-P5
UNIT AT RATED LINE VOLTAGE
ADJUST SINEWAVE INPUT SIGNAL AT
FREQ 1kHz100Hz
AUX IN J2 TO VERIFY:
14.6W (10.8Vrms)14.6W (10.8Vrms)
0.1% THD<0.3% THD
R16
CW
2.2k
R17
50kB
BASS
CW
R18
50kB
MID
CW
R19
50kB
TREBLE
1
TO P3
INPUT
100Hz
100mVAC
J1
+12V
TP1
D1
R2
10k
D2
R1
1M
-12V
C
TYPICAL POWER
ON/OFF SWITCH
UP
2A
4B
1A
3B
REAR VIEW
L
B
N
GREEN/YELLOW
16.8VAC
TP8
C30
.1
63V
P3
C31
.1
63V
A
16.8VAC
TP9
D15
1N4003
D16
1N4003
D17
1N4003
D18
1N4003
+21.7VDC
TP10
-21.7VDC
TP11
+22V
-22V
C32
2200
25V
C33
2200
25V
+12.5VDC
TP12
U4
OUTIN
123
7812
ADJ
C34
.1
C35
.1
1
GND
7912
2 3
IN OUT
U5
D19
D20
-12.5VDC
TP13
R59
47
+12V
R60
C40
1k
.1
RED
D23
RED
POWER
C41
BLK
.1
7. AC AND DC VOLTAGES ARE READ TO GROUND WITH A DVM UNDER
THE FOLLOWING CONDITIONS:
UNIT AT RATED LINE VOLTAGE
8 OHM RESISTIVE LOAD AT P4-P5
NO INPUT SIGNAL FOR TP8-20
100mVRMS, 100Hz SINEWAVE INPUT SIGNAL AT J1
ALL CONTROLS AT 12 O'CLOCK (50% ROTATION)
VOLTAGES MAY VARY BY +/-20%
6. LAST REFERENCE DESIGNATORS: C42, D23, F1, J3, P6, PW6,
Q2, R60, U5, WJ2. NOT USED: R24, R28-29.
5. THIS SCHEMATIC IS FOR PCB FABRICATION P/N 848KKI011 AND
PCB ASSEMBLY P/N 848KKI010.
4. ALL DIODES ARE 1N4448.
3. ALL POLARIZED CAPACITORS IN uF, 20%; 16V MINIMUM.
2. ALL UNPOLARIZED CAPACITORS IN uF, 10% OR BETTER; 50V MINIMUM.
(POWER SUPPLY BYPASS CAPACITORS ARE 20%).
1. ALL RESISTORS IN OHMS, 5%; 1/4W.
NOTES: (UNLESS OTHERWISE NOTED)
THIS DOCUMENT CONTAINS INFORMATION OF
A PROPRIETARY NATURE TO FENDER MUSICAL
INSTRUMENTS AND IS SUBMITTED TO YOU IN
CONFIDENCE AND SHALL NOT BE DISCLOSED OR
TRANSMITTED TO OTHERS WITHOUT AUTHORIZ-
ATION FROM FENDER MUSICAL INSTRUMENTS.
CHECKED BY:
DATE:
APPROVED BY:
DATE:
DATABASE FILE: Z848S.SCH
ENGR: D.LEWIS
R
MUSICAL INSTRUMENTS
TITLE:
SERVICE DIAGRAM, COMBINED
D
RELEASE DATE: 06-AUG-09
RUMBLE 15
BASS AMPLIFIER
848KKI012DRAWN: D. LEWIS
Corona, CA U.S.A.
(schematic)
SHEET: 1 OF 2
A
REV.DRAWING NUMBERSIZE
A
TL074
C38
.1
4
U1-E
11
11
U2-C
LM13700
6
C39
.1
C36
D21
22
D22
C37
22
-12V
8 7 6 5 4 3 2 1
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