Read JBL P 80.4 (serv.man2) Service Manual online
P80.4
4 CHANNEL
AUTOMOTIVE
POWER AMPLIFIER
AUTOMOTIVE
POWER AMPLIFIER
TECHNICAL MANUAL
JBL CONSUMER PRODUCTS
250 CROSSWAYS PARK DRIVE, WOODBURY, NY 11797
8500 BALBOA BOULEVARD, NORTHRIDGE, CA91329
WWW.JBL.COM
250 CROSSWAYS PARK DRIVE, WOODBURY, NY 11797
8500 BALBOA BOULEVARD, NORTHRIDGE, CA91329
WWW.JBL.COM
SPECIFICATIONS
Specifications .........................................................1
Features .................................................................2
Test Conditions and Notes ......................................2
Controls and Connections .....................................3
Mounting the amplifier............................................3
Typical System Configuration (Wiring) ....................4
Printed Circuit Boards (Top View)...................5
Features .................................................................2
Test Conditions and Notes ......................................2
Controls and Connections .....................................3
Mounting the amplifier............................................3
Typical System Configuration (Wiring) ....................4
Printed Circuit Boards (Top View)...................5
Parts Lists....................................................6~8
Integrated Circuit Diagrams...............................11
Transistor Diagrams.........................................12
Schematic Diagrams...................
Transistor Diagrams.........................................12
Schematic Diagrams...................
Block Diagrams.................................................9
Packaging Exploded View.................................10
Packaging Exploded View.................................10
................13~15
Amplifier Exploded View....................................16
Number of Channels . . . . . . . . . . . . . . . . . . .
4 Ohms Stereo . . . . . . . . . . . . . . . . . . . . .
2 Ohms Stereo . . . . . . . . . . . . . . . . . . . . .
4 Ohms Bridged . . . . . . . . . . . . . . . . . . . .
T.H.D. @ 4 Ohms rated Power . . . . . . . . . . . . .
Frequency Response . . . . . . . . . . . . . . . . . .
Signal to noise Ratio . . . . . . . . . . . . . . . . . . .
Slew Rate . . . . . . . . . . . . . . . . . . . . . . . . .
Channel Separation . . . . . .
4 Ohms Stereo . . . . . . . . . . . . . . . . . . . . .
2 Ohms Stereo . . . . . . . . . . . . . . . . . . . . .
4 Ohms Bridged . . . . . . . . . . . . . . . . . . . .
T.H.D. @ 4 Ohms rated Power . . . . . . . . . . . . .
Frequency Response . . . . . . . . . . . . . . . . . .
Signal to noise Ratio . . . . . . . . . . . . . . . . . . .
Slew Rate . . . . . . . . . . . . . . . . . . . . . . . . .
Channel Separation . . . . . .
. . . . . . . . . . . . . .
Damping Factor . . . . . . . . . . . . . . . . . . . .
Fuse size. . . . . . . . . . . . . . . . . . .
Line Level Sensitivity. . . . . . . . . . . . . . .
DC Operating Range. . . . . . . . . . . . . . .
Fuse size. . . . . . . . . . . . . . . . . . .
Line Level Sensitivity. . . . . . . . . . . . . . .
DC Operating Range. . . . . . . . . . . . . . .
Length . . . . . . . . . . . . . . . . . . . . . . . . . . .
Width . . . . . . . . . . . . . . . . . . . . . . . . . . .
Depth . . . . . . . . . . . . . . . . .
Width . . . . . . . . . . . . . . . . . . . . . . . . . . .
Depth . . . . . . . . . . . . . . . . .
. . . . . . . . . .
Length . . . . . . . . . . . . . . . . . . . . . . . . . . .
Width . . . . . . . . . . . . . . . . . . . . . . . . . . .
Depth . . . . . . . . . . . . . . . . . . . . . . . . . . .
Width . . . . . . . . . . . . . . . . . . . . . . . . . . .
Depth . . . . . . . . . . . . . . . . . . . . . . . . . . .
1,2,3,4
40W x 4
80W x 4
160W x 2
0.05%
10Hz ~ 50KHz
>100dB
> -13V / us
> 60dB
> 100
20A x 2
250mV ~ 4V
6V ~ 18V
40W x 4
80W x 4
160W x 2
0.05%
10Hz ~ 50KHz
>100dB
> -13V / us
> 60dB
> 100
20A x 2
250mV ~ 4V
6V ~ 18V
12 9/16
9 1/16
2 11/16
9 1/16
2 11/16
319
229
68
229
68
External Dimensions (Inches)
External Dimensions (mms)
JBL continually strives to improve its products. New materials, production methods and design refinements are
introduced into existing models without notice as a routine expression of our design philosophy. For this reason,
Power Series Multichannel Automotive Amplifiers may differ in some respects from their published specifications
and descriptions, but will always equal or exceed the original specifications unless otherwise stated.
introduced into existing models without notice as a routine expression of our design philosophy. For this reason,
Power Series Multichannel Automotive Amplifiers may differ in some respects from their published specifications
and descriptions, but will always equal or exceed the original specifications unless otherwise stated.
1
Multichannel Automotive Amplifier
p80.4
controls and connections
Test Conditions and Notes
4-Channel Operation
Advanced MOSFET Oversized Floating Rail Power Supply
Floating Ground Factory - Head - Unit Speaker - Level input
Variable Input Sensitivity (250mV - 4V)
Fully Complementary Output Stage with Class-A Voltage Amplification
Gold-plated Power, Input and Output Connectors
2-Ohm Stable (Stereo)
All tests to be done, unless otherwise specified, from 10Hz to 50KHz at 14.4V DC into 4 ohm loads and adjust
the units gain so that with a .775 volt input signal the unit is at Its maximum rated output. All measurements
will be done using an Audio precision system one and the supply voltage.
the units gain so that with a .775 volt input signal the unit is at Its maximum rated output. All measurements
will be done using an Audio precision system one and the supply voltage.
An A+ line voltage of 14.4V DC shall be applied to the unit under test for all measurements unless otherwise
specified. The voltage applied to the unit shall be measured at the power connection on the Amplifier.
specified. The voltage applied to the unit shall be measured at the power connection on the Amplifier.
Signal Source
Unless otherwise specified, all tests shall be conducted with the Audio Signal Generator output configured to
be balanced, less than or equal to 50 ohm source impedance, and floating. The signal source "GND" shall be
connected to the Amplifier PWR GND at the Amplifier.
Unless otherwise specified, all tests shall be conducted with the Audio Signal Generator output configured to
be balanced, less than or equal to 50 ohm source impedance, and floating. The signal source "GND" shall be
connected to the Amplifier PWR GND at the Amplifier.
Output Load
Unless otherwise specified, all tests shall be conducted with 4 ohm resistive loads having less than 10%
reactive components at any frequency below 75KHz. Each resistor shall have a value that remains within 1%
while dissipating the rated output of the unit under test.
Unless otherwise specified, all tests shall be conducted with 4 ohm resistive loads having less than 10%
reactive components at any frequency below 75KHz. Each resistor shall have a value that remains within 1%
while dissipating the rated output of the unit under test.
Power Indicator Green LED steadily illuminates for normal operation. Illuminates up Red LED blinks when
protection circuitry is engaged, and during power up.
protection circuitry is engaged, and during power up.
2
p80.4
features
Multichannel Automotive Amplifier
Controls and Connections
Controls and Connections
Mounting the Amplifier
1. It allows left and right input channels to be
connected to the amplifier using RCA plugs.
connected to the amplifier using RCA plugs.
2. Speaker Output Connector - Connect speaker
wiring to these connectors. See wiring instruc-
tions on page 4 for more information.
wiring to these connectors. See wiring instruc-
tions on page 4 for more information.
3. Fuse - Two 20 Amp ATC type Fuses.
The JBL Power Series amplifiers can be mounted in virtually any location inside the vehicle.
However, make sure to keep the amplifier away from heater vents or ducts.
However, make sure to keep the amplifier away from heater vents or ducts.
1. At the chosen site, use the amplifier as a mounting template and mark the locations of the
four mounting holes.
four mounting holes.
2. Drill a small pilot hole at each marked location.
3. Mount the amplifier and securely tighten the mounting screws.
4. Power Connection for 12V+, GND and REM
connections for power wires. See wiring instruc-
tions on page 4 for more information.
5. Input-Level Control - Adjusts input sensitivity
for pre-amp level and speaker level inputs.
6. Frequency adjustment-When the LPF/FLAT/HPH switch
is either in the LPF or HPF position,this sdjusts where the
frequency response of the amplifer rolls off on the upper
or lower end of the range,depending on switch position.
7. When this switch is in the FLAT position the amplifier operates
at full range grequencies. When in the LPF position, the
Bass frequencies;when the switch is in the HPF position,the
amplifier operates in the Upper frequencies.
8. It allows left and right input channels such as higf level
speaker output signals to connected to the amplifier
Multichannel Automotive Amplifier
3
FUSE 20Ax2
SPEAKER OUTPUTS
- L + - R +
-
-
+
BAIDGED
FRONT
REAR
+BATT
REM
GND
POWER
+ R - - L +
+ R - - L +
HIGH LEVEL
HIGH LEVEL
X-OVER
FLAT HP LP
4V 250mV
32Hz 320Hz
32Hz 320Hz
4V 250mV
ST MO
ST MO
FLAT HP LP
INPUT MODE
X-OVER
R
R
L
L
FRONT
LEVEL FREQ
FREQ LEVEL
REAR
.
.
.
.
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P80.4
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