DOWNLOAD JBL L820 Service Manual ↓ Size: 764.5 KB | Pages: 2 in PDF or view online for FREE

Model
L820
Pages
2 Few pages! See other manuals at the bottom of the first or last page.
Size
764.5 KB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
l820.pdf
Date
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JBL L820 Service Manual ▷ View online

ACOUSTIC & ELECTRICAL SPECIFICATIONS:
• Nominal Impedance
8 ohms
• Max Amp Power
150 watts* 
• Frequency Response
55Hz – 40kHz (±3dB)
• Sensitivity
90dB (2.83V @ 1 meter)
• Crossover Frequencies
600Hz, 3500Hz, 20kHz
SYSTEM COMPONENTS:
• Grille
353232-001
• Low-Frequency Transducer
6" (152mm) PolyPlas
™
cone, shielded (335148-002)
DC Resistance
4.8 ohms ±10%
• Mid-Frequency Transducer
4" (101mm) PolyPlas
™
cone, shielded (353116-001)
DC Resistance
4.8 ohms ±10%
• High-Frequency Transducer
1" (25mm) Pure-titanium 
dome (353237-001)
DC Resistance
3.3 ohms ±10%
• Ultrahigh-Frequency 
3/4" (19mm) Mylar
®
dome
Transducer
(353107-001)
DC Resistance
3.6 ohms ±10%
• Crossover Network
353328-001
AURAL SWEEP TEST SPECIFICATIONS:
• System Aural Sweep Test
6.0V Input 55Hz to 20kHz
• L.F. Aural Sweep Test
5.0V Input 55Hz to 1kHz
• M.F. Aural Sweep Test
5.0V Input 500Hz to 4kHz
• H.F. Aural Sweep Test
2.83V Input 3kHz to 20kHz
• U.H.F. Aural Sweep Test
n/a
PHYSICAL SPECIFICATIONS:
• Enclosure dimensions
12-1/4" x 15-1/2" x 5"
(H x W x D)
(311mm x 391mm x 127mm)
• Weight
38 lb (17.2kg) Sold in Pairs
WARRANTY:
• Refer to Warranty Statement packed with each product.
* The maximum recommended amplifier power rating will
ensure proper system headroom to allow for occasional
peaks. We do not recommend sustained operation at these
maximum power levels.
Technical Manual
L820 L/R
Studio
™
L Series
L820
L/R
Studio
™
L
S
eries
JBL Consumer Products, 250 Crossways Park Drive, Woodbury, New York 11797
8/05
Legend on Page 2
20
22
22
26
27
21
23
24
25
PACKAGING
L820 SCHEMATIC
.250
.205
LF
INPUT
L1
2.2mH
.205
L.F.
U.H.F.
C1
60uf
100V
+
–
.110
12" GRN
12" GRN/BLK
16" ORG
16" ORG/BLK
L5
0.04mH
3.2mH
L2
0.28mH
C2
25uf
100V
.250
M.F.
R1
2.0ohm
5W
10ohm
5W
R2
7.5ohm
5W
R5
3.9ohm
10W
HF/
UHF
INPUT
+
–
.205
16" WHT
.205
16" YEL
16" BLK
C1B
0.01uf
100V
C3
15uf
100V
C3B
0.01uf
100V
2.2uf
100V
L3
0.6mH
CROSSOVER
NETWORK
353328-001
HIGH-FREQUENCY
TRANSDUCER
353237-001
ULTRAHIGH-
FREQUENCY
TRANSDUCER
353107-001
LOW-FREQUENCY
TRANSDUCER
335148-002
MID-FREQUENCY
TRANSDUCER
353116-001
BLK
RED
GRN/BLK
GRN
ORG/BLK
ORG
YEL/BLK
YEL
BLK
WHT
C6
.5uf
100V
C7
0.5uf
100V
C7B
0.01uf
100V
C6B
0.01uf
100V
C2B
0.01uf
100V
H.F.
.110
16" YEL/BLK
L4
0.06mH
R4
2.4ohm
10W
C4
7uf
100V
C5
10uf
100V
C5B
0.01uf
100V
C4B
0.01uf
100V
19
5
11
1
6
15
8
15
28
4
14
9
7
18
17
16
13
11
12
3
10
2
L820 Cabinet – Not for Sale
Item
Part No.
Description
Qty.
1
353237-001
HF TWEETER, ASSY, W/FACEPLATE
1
2
353133-001
HORN, UHF – STUDIO SERIES
1
3
353107-001
ASSY, TWEETER, UHF – STUDIO SERIES
1
4
335148-002
ASSY, WFR, 6-1/2" STUDIO L SERIES
1
5
353116-001
ASSY, MIDRANGE, 4" STUDIO L SERIES
1
6
353297-001
FLOWER POT, STUDIO L SERIES
1
7
333249-001
GRILLE CUP, BLACK
4
333249-003
GRILLE CUP, BE & CH
4
8
353328-001
CROSSOVER NETWORK L820
1
9
351317-001
TERMINAL CUP, BI-WIRE, PLSTC-NE
1
10
900301-008
SCREW (UHF TWT) MS, PPH, 6-32X.5, BLK
2
11
908302-012
SCREW (HF TWT, UHF HORN, MIDRANGE)
12
PB, HXS, #6X.75, ZINC
12
353327-001
GSKT, TWEETER, UHF
1
13
353331-001
GSKT, TWEETER, HF
1
14
903802-012
SCREW (WOOFER) PB, HXS, #8X.75, ZINC
6
15
903401-012
SCREW (NETWORK, TERM CUP)
8
PB, PPH, #6X.75, BLK
Item
Part No.
Description
Qty.
16
8161571-001
INSERT, 10-32X5MM, HXS, KNIFE
8
17
880-00713-00
HOLE PLUG, TRUSS, 4OD.22HLE
8
18
353284-001
ASSY, LOGO – STUDIO L SERIES
1
19
353232-001
ASSY, GRILLE – STUDIO L820
1
20
353333-001
OUTER CARTON, STUDIO L820, BLK
1
353333-002
OUTER CARTON, STUDIO L820, BE
1
353333-003
OUTER CARTON, STUDIO L820, CH
1
21
353334-001
L820 OWNER’S MANUAL
1
22
353335-001
PAD, END, TOP & BTM L820
2
23
338322-001
WARRANTY CARD, JBL PASSIVE
1
24
330104-001
FOOT, BUMP-ON, 3M, SJ5744
8
25
353355-001
BRACKET, WALL – STUDIO L SERIES
4
26
804-41110-08
SCREW (WALL BRACKET) 
16
10-32X1/2, PN, PH, BLK
27
354310-001
WALL TEMPLATE, PAPER, L820
1
28
CS06-6
NETWORK SHORTING STRAPS (SET)
1
L820
L/R
Studio
™
L
S
eries
Technical Manual
L820 L/R
Studio
™
L Series
EXPLODED VIEW
JBL Consumer Products, 250 Crossways Park Drive, Woodbury, New York 11797
8/05
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JBL L820 Service Manual ▷ Download

  • DOWNLOAD JBL L820 Service Manual ↓ Size: 764.5 KB | Pages: 2 in PDF or view online for FREE
  • Here you can View online or download the Service Manual for the JBL L820 in PDF for free, which will help you to disassemble, recover, fix and repair JBL L820 Audio. Information contained in JBL L820 Service Manual (repair manual) includes:
  • Disassembly, troubleshooting, maintenance, adjustment, installation and setup instructions.
  • Schematics, Circuit, Wiring and Block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Exploded View and Parts List.

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