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JBL Incorporated, 8500 Balboa Boulevard, P.O.Box 2200, Northridge, California 91329 U.S.A.
JBL 6208 REV E
PACKAGE
WIRING DIAGRAM
08-03
Technical Manual
JBL 6208
SPECIFICATIONS
ACOUSTIC & ELECTRICAL SPECIFICATIONS:
• Nominal Impedance: 10K Line Level
• Frequency Range: 45 Hz to 20 kHz (–10 dB)
• Sensitivity: +4/–10 dBV (1.23V/0.25V)
• Crossover Frequencies: 2.6 kHz
SYSTEM COMPONENTS:
• Cabinet: C6208
• Grille: (330867-001)
• Low Frequency 200mm (8 in.) Cone
Transducer: Transducer 508G-3S (73284-01X)
• DC Resistance: 5.9 ohm ±5% Copper Wire
• High Frequency 25mm (1 in.) Gold Titanium/Hybrid
Transducer: Dome 031TiS-1 (330862-001)
• DC Resistance: 3.5 ohm to 4.2 ohm Copper Wire
SYSTEM COMPONENTS: (cont’d)
• Power Amp: (See Page 2)
AURAL SWEEP TEST SPECIFICATIONS:
A. L.F. Aural Sweep Test: 4.0V Input, 20 Hz to 1.2 kHz
B. H.F. Aural Sweep Test: 2.0V Input, 2.0 kHz to 20 kHz
PHYSICAL SPECIFICATIONS:
• Enclosure Dimensions: 451mm x 286mm x 326mm D
(17.75 x 11.25 x 12.85 in. D)
SHIPPING WEIGHT: 34 lbs. (15.4 kg.)
WARRANTY INFORMATION:
• Refer to the Warranty Statement packed with each product.
Microfoam
Packaging
74309
Polybag
74357
Tape
65012-01
Carton
990-00007-00
Tray, Bottom
991-00014-00
Tray, Top
991-00013-00
Warranty 59660
Owners Manual
330875-001
Speaker,
Low Freq
508G-3S
(73284-01X)
Speaker,
High Freq
031TiS-1
Gold Diaphragm
(330862-001)
Power Amp
(See Page 2)
GRN
YEL
YEL/BLK
GRN/BLK
SCHEMATIC N6208
(See Page 4)
NOTE: CONE/DIAPHRAGM KIT NOT AVAILABLE.
DEFECTIVE DRIVER SHOULD BE REPLACED.
Power Cord 120V
425-00001-00
Power Cord 230V
425-00001-01
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JBL 6208
JBL 6208
COMPONENT EXPLODED VIEW
Power Cord
425-00001-00 (120V-100V)
425-00001-01 (230V)
T-Nut (8)
8-32 x 11/32
61860
Cabinet
C6208
122-00001-00
(Not For Sale)
Grille
G6208
330867-001
Gasket
74116
Port Tube
70515-03
(Not For Sale)
Pad Ring (2)
69448
Dust Dome
65512
Screw (4)
863-41610-08
No.8-32 x 1/2
PAN PH TT
Speaker, Low Freq
508G-3S
(73284-01X)
Input
Terminals
71155
Screw (4)
802-41000-06
No.6-32 x 3/8
PAN PH CLR
Speaker, Hi Freq
031TiS-1
Gold Diaphragm
330862-001
2
1
2
3
4
20
24
1
1
6
19
15
18
16
17
15
11
12
13
14
11
12
10
8
7
9
21
22
23
POWER AMPLIFIER
– 140-00006-00 M/I 6208/120
– 140-00006-01 M/I 6208/230
– 140-00006-02 M/I 6208/100
– 160-00001-10 Power Amp/120
– 160-00001-11 Power Amp/230
– 160-00001-12 Power Amp/100
1 800-36000-00 Nut, 4-40 (8)
2 260-00000-00 Cover Assy 126-00006-00
3 880-02102-00 Grommet
4 513-00016-00 PCB, Final
5 801-36000-00 Nut, 6-32 (2)
6 423-00004-00 Clamp (2)
7 395-00011-13 Tape, Foam
8 460-00012-00 Heatsink
9 546-00001-00 SW, Power
10 472-00002-00 Insulator
11 452-00001-00 Fuse Holder, 3AG
12 452-00002-00 Fuse Holder, 5 x 2mm
13 453-53302-00 Fuse, 3A, 3AG
14 453-13152-00 Fuse, 1.5A, 5 x 20mm
15 701-41110-10 Screw, 4-40 x 5/8 BLK (8)
16 702-41010-08 Screw, 6-32 x 1/2 BLK (2)
17 701-41810-10 Screw, 3mm x 10mm (2)
18 703-41010-10 Screw, No. 8-32 x 1 OVHD PH (8)
19 424-00079-00 CON, Power
20 513-00018-01 PCA-Signal Input
21 562-00017-00 X-Former, 120V
22 562-00018-00 X-Former, 230V
23 562-00019-00 X-Former, 100V
24 424-00080-00 XLR 1/4'' Jack
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JBL 6208
JBL 6208
CIRCUIT BOARD
3
COMPONENT PARTS LIST
ITEM
QTY. PART NO. DESCRIPTION
NO.
1 3 560 00000 00 CONN, FASTON, 0.25
2 4 676 00009 00 SEMI, DIODE, RECT, 200V, 3A, 1N5402, 267-02
3 3 675 00000 00 SEMI, DIODE, SIG, 75V, 200mA, 1N4148, DO-35
4 1 510 00016 02 PCB, RAW, 6208, Main Board
5 2 680 00013 00 SEMI, X-ISTOR, NPN, SIG, MPS8099, TO-92
6 2 680 00014 00 SEMI, X-ISTOR, NPN, Sig, TIP31C, TO-220
7 2 680 00016 00 SEMI, X-ISTOR, NPN, SIG, TIP35C, TO-218AC
8 2 660 00025 00 POT, 500 OHM, 1/8W
9 2 680 00015 00 SEMI, X-ISTOR, PNP, SIG, TIP32C, TO-220
10 2 680 00017 00 SEMI, X-ISTOR, PNP, SIG, TIP36C, TO-218AC
ITEM
QTY. PART NO. DESCRIPTION
NO.
11 6 606 05102 50 CAP, FILM, 50V, .0010µF, 5%, RADIAL*
12 6 680 00011 00 SEMI, X-ISTOR, PNP, SIG, MPS8599, TO-92
13 5 608 08104 50 CAP, SMFILM, 100V, .10µF, 5%, RADIAL
14 1 684 00022 00 SEMI, IC-ANA, LF347N, DIP14
15 1 424 00081 00 HDR, 3X1, Polarized
16 1 684 00023 00 SEMI, IC-ANA, TL082CP, DIP8
17 1 684 00018 00 SEMI, IC-ANA, NJM7915FA, –5V REG, ISOL, TO220F
18 1 684 00021 00 SEMI, IC-ANA, NJM7815FA, +15V REG, ISOL, TO220F
19 2 677 00057 00 SEMI, DIODE, ZENER, 12V, 1W, 1N4742A, DO-41
20 2 604 05568 60 CAP.ELEC, LARGE, 85C, 50V, 4700µF, 20%
20
12
6
7
8
9
10
7
6
11
10
9
8
13
14
15
16
17
18
19
12
3
4
5
*Note: 50V or 100V part may be used.
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POWER AMPLIFIER SCHEMATIC
JBL 6208
4
JBL 6208
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