9
Powered Subwoofer
BASS20
REF. NO.
PART NO.
DESCRIPTION
QTY
R26, 28
RS1717
SMD RES 100
Ω
5% 1/8W 12 P
2
R29
RS1716
SMD RES 33.2K 1% 1/8W 120 P
1
R30
RS1711
SMD RES 220
Ω
5% 1/8W 12 P
1
R35
RS1912
SMD RES 11K
Ω
5% 1/8W 120 P
1
R36, 41
RS2180
470W 1W (early versions: 1K 1W)
2
R37
RS1703
SMD RES 2.2K
Ω
5% 1/8W 12 P
1
R43, 44
RS1968
SMD RES 2.2M
Ω
5% 1/8W 12 P
2
R47, 55
RS1767
SMD RES 1 M
Ω
5% 1/8W 120 P
2
R51
RS1793
SMD RES 475K 1% 1/8W 12 P
1
R56
RS1722
SMD RES 470
Ω
5% 1/8W 12 P
1
R1P, 1AP, 2P RS1868
RES. W/W 0.1
Ω
5% 5W RAD P
4
2AP
R3P, R7P
RS1994
RES. 100
Ω
, 5%, 1/4W, C/F, T/R
2
R5P, R6P
RS1916
RES. C/F 5.1
Ω
5% 1/4W T/ P
2
Transistors
Q1
TR1135
TRANSISTOR PNP 2N5401
1
Q2
TR1108
TRANSISTOR 2SC2412 SMD NPN
1
Q4
TR1134
TRANSISTOR 2N5551 NPN
1
Q5
TR1167
TRANSISTOR 2N5551 NPN
1
Q6
TR1131
TRANSISTOR DTC114TK SMD NPN 1
Q7
TR1063
TRANSISTOR MPS2222A NPN
1
Q8
TR1166
TRANSISTOR PNP 2N5401
1
Q1P, Q1AP
TR1245
TRANSISTOR NPN TIP35E
2
Q2P, Q2AP
TR1246
TRANSISTOR PNP TIP36E
2
Q3P
TR1247
TRANSISTOR NPN TIP32E
1
Q4P
TR1248
TRANSISTOR PNP TIP31E
1
REF. NO.
PART NO.
DESCRIPTION
QTY
Miscellaneous
L1
SA0000042
AIR CORE INDUCTOR 1.8uH MI
1
LED1
LE1032
LED BICOLOR RED/GREEN 5mm. PI 1
SW1
SW1070
SWCH SLIDE SP3T RIGHT AN PI
1
24
SW1075
SWITCH ROCKER 2P2T
1
SNAP (230V ONLY)
TH1
TH1006
NTC THERMISTOR 10K
Ω
@25 P
1
TRIAC
TY1001
MAC224-4 TRIAC 200V 25A
1
XFORMR
MI1130
POWER TRANSFORMER (120V)
1
MI1176
POWER TRANSFORMER (230V)
1
Date
Rev. No.
Changes Made
3/21/96
1
Increment And Transistor Voltage To 140v
6/19/96
2
R11 changed from
27K
to 51K
R12 changed from
51K
to 24K
R9 changed from
20K
to 200K
R10 changed from
33K
to 200K
R29 changed from
11K
to 33K
R51 changed from
160K
to 470K
R39 changed from
47K
to 10K
R54 changed from
47K
to 10K
R22 changed from
15K
to 4.7K
R34 changed from
15K
to 4.7K
R20 changed from
220
to 160
R40 changed from
220
to 160
R33 changed from
4.3K
to 4.7K
C5changed from
.1
µ
F
to .033
µ
F
C7 changed from
.1
µ
F
to .033
µ
F
C11 changed from
.1
µ
F
to .022
µ
F
C15changed from
.047
µ
F to 3300
ρ
F
C21 changed from
100
ρ
F
to 330
ρ
F
Fuse changed from
3A
to 5A
C19 changed from
22
µ
F/16V to 22
µ
F/63V
C28 changed from
22
µ
F/16V to 22
µ
F/63V
R5P changed from
10
to 5.1
R6P changed from
10
to 5.1
C1 changed from 4700
µ
F/50V to 4700
µ
F/63V
C2 changed from 4700
µ
F/50V to 4700
µ
F/63V
Date
Rev. No.
Changed Made
6/19/96
3
R
was added from 100 -Dwg Rev.03
C
was added from 0.1
µ
F/100V -Dwg Rev.03
CX, CY added from 470
ρ
F - Dwg Rev.03
6/24/96
4
PC1132-1 was changed to PC1132-2
Q1AP was added
R1AP, R2AP were added from 0.1ohm
Q2AP was added
R2P was added from 100
C4P was added from 0.1
µ
F/100V
CX, CY were changed from 470
ρ
F to C2P, C3P
DIP, D2P were deleted
7/290/96
5
R20 changed from
220
to 160
R40 changed from
220
to 160
R5P changed from
10
to 5.1
R6P changed from
10
to 5.1
7/29/96
4
R29 was deleted from 33K
R9 was deleted from 200K
R51 was deleted from 470K
R10 was deleted from 200K
C7 was deleted from 0.033
µ
F 10%
R29 was added from 33.2K 1%
R9 was added from 200K 1%
R51 was added from 475K 1%
R10 was added from 200K 1%
C7 was added from 0.033
µ
F 5 %
REVISIONS
Summary of Contents for JBL BASS20
Page 6: ...5 Powered Subwoofer BASS20 BASS 20 120v US 230v European Versions BLOCK DIAGRAM...
Page 7: ...6 Powered Subwoofer BASS20 BASS20 120V 230V versions AMPLIFIER EXPLODED VIEW...
Page 8: ...7 Powered Subwoofer BASS20 BASS20 CABINET ASSEMBLY EXPLODED VIEW...
Page 11: ...1 0 Powered Subwoofer BASS20 BASS20 PACKAGING VIEW MUSIC20 SCS120...
Page 12: ...1 1 Powered Subwoofer BASS20 PRINTED CIRCUIT BOARDS TOP VIEW...
Page 13: ...1 2 Powered Subwoofer BASS20 PRINTED CIRCUIT BOARDS BOTTOM VIEW...
Page 14: ...1 3 Powered Subwoofer BASS20 INTEGRATED CIRCUIT DIAGRAM...
Page 15: ...1 4 Powered Subwoofer BASS20 120V SCHEMATIC DIAGRAM...
Page 16: ...1 5 Powered Subwoofer BASS20 230V SCHEMATIC DIAGRAM...