Read JBL BASS 20 Service Manual online
8
Powered Subwoofer
BASS20
MECHANICAL PARTS LIST
REF. NO.
PART NO.
DESCRIPTION
QTY
1
BR1187
ALUM. BAR 4.8mmx12.7mmx40m
2
BR1387
ALUMINUM BAR 1.9"x0.5"x0.1
1
2
HS1102
HEAT SINK ASSY.
1
3
FH1002
FUSE HOLDER 1/4x1-1/4 (120V)
1
FH1003
FUSE HOLDER 5x20mm (230V)
1
4
SEE FUSES
5
LB1269
LABEL FOR HEATSINK (120V)
1
LB1298
LABLE FOR HEATSINK (230V)
1
7
MS1004
SILICONE GREASE #340 DOW
8
PM1366
GASKET FOR BASS20
1
9
TE1125
TERMINAL ULTRA FAST INS.
9
10
WI1637
WIRE #18 BLUE/WHITE TRACER
3"
11
SC1192
Sc 6-32x7/8 TAPT-THR HEX W
2
12
WA1049
WASHER EXT. TOOTH #6 ZINC
6
13
XX1250
STRAIN RELIEF SPT-1 BLACK
1
15
SC1215
SCREW M3x1.25x10 plas-Thr Pan
5
17
XX1174
AC CORD. 6FT UL/CSA APRO. (120V)1
WI1597
AC CORD. 6FT UL/CSA APRO. (230V)1
18
SP1020
SIL. FOAM 3/8"Lx1/4"Wx3/16
2
19
SP1073
SIL PAD TO-3P 1.0"x0.75"
4
20
XX1257
COVER PLASTIC
1
21
XX1259
KNOB BLACK CUSTOM
1
22
WA1032
WASHER PLAIN #6 ZINC FINISH
4
23
SC1194
Sc 6-32x3/8 TAPT-THR HEX
4
331364-001
GASKET
1
61868
Sc #8x3/4" Blk Pan Head Phillips
12
305718-001
FOOT
4
63868
INSERT THREADED (for foot)
332246-001
SUBWOOFER
2
900101-016
SCREW #8x1" Blk Pan Head
8
C01076
RCA JACK DUAL GOLD RED/WHT
1
C01256
JACK SPEAKER QUAD PC
2
CT, LINE 1
TE1175
TRMNL MALE TAB 0.32"x0.25" PI
3
LINE 2
ELECTRICAL PARTS LIST
Capacitors
C1, C2
CP1635
CAP ALUM EL 4700uF 20% 63v
2
C3, 20
CP1473
CAP CERAMIC 220 pF 50V P
2
C4, 24, 30
CP1415
CAP ALUM EL. 2.2uF 20% 50V P
6
31, 32, 33
C5
CP1439
SMD CAP 33nF 10% 100V X7R PI
1
C7
CP1633
CAP CERAMIC 0.033uF 5% 50 PI
1
C8, 10, 13
CP1552
SMD CAP 0.1uF 20% 100V Z5U P
3
C9, 12, 27, 29 CP1417
CAP ALUM EL. 22uF 20% 16V P
4
C11
CP1178
CAP POLY FILM 22nF 5% 63V P
1
REF. NO.
PART NO.
DESCRIPTION
QTY
C14, 16
CP1426
SMD CAP 0.1uF 20% 50V Z5U P
2
C15
CP1479
SMD CAP 3300pF 10% 100V X PI
1
C19, 28
CP1645
CAP AL EL 22uF 20% 63V 85 PI
2
C21
CP1478
SMD CAP 330pF 5% 100V NPO P
1
C22
CP1475
SMD CAP 33pF 5% 50V NPO 12 P 1
C23
CP1411
CAP ALUM EL. 100uF 20% 16V P
1
C1P
CP1426
SMD CAP 0.1uF 20% 50V Z5U P
1
C2P, C3P
CP1480
SMD CAP 470pF 5% 100V NPO
2
C4P
CP1552
SMD CAP 0.1uF 20% 100V Z5U P
1
C5P, 6, 17
CP1579
33
µ
F 16V NPE
3
CX
CP1808
0.1
µ
F 250V
1
CX1, CX2,
CP1844
0.01
µ
F 200V SMD
4
CX3, CX4
Diodes
CR1, 2, 3, 4
DI1005
1N5401 DIODE 3A/200V P
4
D1, 2, 3, 4, 5 DI1132
SMD DIODE 1N4148 LL-34 PKG T P 5
Z1, 2
DI1150
SMD ZENER 15V 5% CP PKG T P
2
Fuses
F1 (120V)
870-0052
FUSE Fast Blow 5A 250V 3AG
1
F1 (230V)
870-0017
FUSE Fast Blow 2A 250V 3AG
1
F2
FS1073
FAST BLOW 8A 250V ACG
1
(early versions)
F2
312004
FAST BLOW 4A 250V ACG
2
(later versions)
Integrated Circuits
IC1, 2, 3,
IC1041
IC SMD DUAL J-FET NJM072B
5
4, 5
OP AMP
Resistors
J1, 2, 3, 4, 5, RS1779
SMD RES ZERO
Ω
JUMPER 12 P
8
6, 7, 10
P1
RS1794
POT, 50K
Ω
20% LOG TAPER
1
R1, 2, 4, 5,
RS1702
SMD RES 100K
Ω
5% 1/8W 12 P
8
24, 42,
57, 58
R3, 8, 14, 18 RS1701
SMD RES 10K
Ω
5% 1/8W 120 P
15
21, 23, 27,
32, 38, 39,
45, 50, 52,
53, 54
R6, 7, 31, 48 RS1700
SMD RES 1K
Ω
5% 1/8W 12 P
4
R9, 10
RS1720
SMD RES 200K
Ω
1% 1/8W 1 PI
2
R11
RS1872
SMD RES 51K
Ω
5% 1/8W 120 P
1
R12
RS2101
SMD RES 24K
Ω
5% 1/8W 120 PI
1
R13, 15
RS1704
SMD RES 22K
Ω
5% 1/8W 120 P
2
R16, 49
RS1715
SMD RES 5.6K
Ω
5% 1/8W 1 P
2
R17
RS1883
SMD RES 1.5K
Ω
5% 1/8W 12 P
1
R19
RS1878
SMD RES 10
Ω
5% 1/8W 120 P
1
R20, 40
RS1829
SMD RES 160
Ω
5% 1/8W 12 P
2
R22, 33, 34
RS1705
SMD RES 4.7K
Ω
5% 1/8W 12 P
3
R25
RS1831
SMD RES 7.5K
Ω
5% 1/8W T/ P
1
BASS 20 PARTS LIST
Click on the first or last page to see other BASS 20 service manuals if exist.