Exploded View; Preamp & Crossover Pcb - JBL BASS550 Service Manual

A B
1
Bass550 Amplifier

Exploded View

2
3
12
4
5
32
6
Preamp & Crossover PCB
7
16
8
17
9
10
10
23
11
12
13
14
A B
C D
20 5x
11
19 2x
5
25 6x
9
24 2x
14
8
Ref # Part No. Description
1 BR1187 Alum. Bar 4.8x12.7x40mm
2 BR1386 Transistor Bar TO-218
3 BR1395 Bracket Power Support
4 BR1411 Bracket Support 60 Deg
5 BR1421 Bracket "L" 0.9"x0.9"
6 BR1423 Front Plate
7 BR1495 Alum. Bar
8 FS1078 Fuse 6A 250V 3AG Slow Blow
C D
E F
Power Supply PCB
Power Amp Subwoofer
22 5x
PCB 1166
3 6x
27 17x
29 12x
18 2x
Ref # Part No. Description
6
9
10
13 6x
11
12
13
14
26 6x
15
16
17
18
19
20
28 6x
21
22
23
Qty.
24
4
25
2
26
6 27
1
28
1 29
1
30
1 31
1
32
E F
G H
31 2x
30 3x
1
2 2x
Power Amp PCB 1165
4
FH1002 Fuse Holder 1/4x1-1/4
XX1174
AG AC Cord 6ft. UL/CSA aprov. 120v
WI1597
AG AC Cord 6ft. UL/CSA aprov. 230v
HS1142 Heatsink Internal
MI1151 AG Power Transformer 120v
M1159 AG Power Transformer 230v
ST1025 Round Spacer 1/2x3/8 length
SW1075 JR Switch Rocker 2P2T Snap-I
XX1259 Knob Black (not shown)
XX1269 Gasket
XX1276 Plastic Cover
NU1059 Nut 4-40 Keps-Thr. Hexag. Zinc
NU1057 Nut 6-32 Keps Zinc Hexag.
NU1049 Nut 8-32x1/4 Keps Hexag.
WA1049 Washer Ext. Tooth #6 Zinc
WA1080 Washer Flat #8 Steel Zinc
XX1250 Strain Relief SPT-1 Black
SC1253 Screw 4-40x3/8 Pan Phillips
SC1274 Screw 5-20x1/4 Thread Form. Z. 6
SC1192 Screw 6-32x3/4 Cutt-Thr. Hex.
SC1194 Screw 6-32x3/8 Tapt-Thr Hex.
SC1282 Screw 10-32x7/8 Pan-Torx Hd.
SP1073 Sil Pad TO-3P 1/0"x0.75"
SP1072 Sil Pad TO-220 0.750"
ST1024 1/4 Hex Fem. Standoff 1-1
Pin Interconnect Cable
332630-001 13
G H
I
1
26 8x
2
21 10x
7
3
4x
4
5
6
7
8
9
Qty.
1
1
1
1
10
1
1
6
1
1
11
1
1
2
2
5
12
10
5
1
2
13
8
17
6
12
3
14
2
1
I