Service Manuals, User Guides, Schematic Diagrams or docs for : JBL Audio a1201gti a1201gti_sm_upgrad_1_744
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A1201GTI
1 CHANNEL
AUTOMOTIVE AMPLIFIER
TECHNICAL MANUAL
JBL CONSUMER PRODUCTS
250 CROSSWAYS PARK DRIVE, WOODBURY, NY 11797
1-800-336-4JBL(4525) WWW.JBL.COM
1 Channel Automotive Amplifier
A1201GTI
Controls and connections
Specifications .........................................................1
Parts Lists........................................................
Features .................................................................2
Block Diagrams.............................,......................1
Test Conditions and Notes ......................................2
Integrated Circuit Diagrams...............................11~12
Controls and Connections .....................................3
Transistor Diagrams.........................................13~14
Mounting the amplifier............................................3 Exploded View.................................15~17
Packaging
Typical System Configuration (Wiring) ....................4
Schematic Diagrams...................
.....................18~20
Printed Circuit Boards (Top View)................5~6 Amplifier Exploded View.........................................21
SPECIFICATIONS
Number of Channels . . . . . . . . . . . . . . . .1 . . .
4 Ohms . . . . . . . . . . . . . . . . . . .600W .
.
2 Ohms . . . . . . . . . . . . . . . . . . . . .
1200W
T.H.D. @ 4 Ohms rated Power . . . . . . . . . . . .0.10%
.
Frequency Response . . . . . . . . . . . . . . .20Hz .~ .320KHz
.
Signal to noise Ratio . . . . . . . . . . . . . . 90 dB
. . . . .
Fuse size. . . . . . . . . . . . . . . . . . . 117A
Input Leve Sensitivity. . . . . . . . . . . . . . . 250mV - 4V
Minimum Speaker Impedance . . . . . . . . . . 1ohm .
. .
External Dimensions (Inches)
Length . . . . . . . . . . . . . . . . . . . 14 .13/16 .
. . . . . .
Width . . .
. . . . . . . . . . . . . . . . . 10
. .3/16 .
. . . .
Depth . . . . . . . . . . . . . . . . . . . 2. 11/16 .
. . . . . .
External Dimensions (mms)
Length . . . . . . . . . . . . . . . . . . . 376 .
. . . . . . .
Width . . . . . . . . . . . . . . . . . . . 274 .
. . . . . . .
Depth . . . . . . . . . . . . . . . . . . . 67.5 .
. . . . . . .
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,
GTI 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
A1201GTI
1 Channel Automotive Amplifier
Features
1-Channel Operation
Floating Ground Factory - Head - Unit Speaker - Level input
Variable Input Sensitivity (250mV - 4V)
Fully Complementary Output Stage with Class-AB Voltage Amplification
Gold-plated Power, Input and Output Connectors
2-Ohm Stable (Stereo)
Test Conditions and Notes
All tests to be done, unless otherwise specified, from 10Hz to 40KHz at 14.4V DC into 4 ohm loads and adju
the units gain so that with a .250 volt input signal the unit is at its maximum rated output. All measurem
will be done using an Audio precision system one and the supply voltage.
An B+ line voltage of 14.4V DC shall be applied to the unit under test for all measurements unless otherwi
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
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.
Power Indicator LED steadily illuminates for normal operation. LED blinks when
protection circuitry is engaged, and during power up.
2
1 Channel Automotive Amplifier A1201GTI
Controls and Connections
R R LPF BASS
INPUT
FREQ BOOST
LEVEL
. . . .
. .
30Hz 320Hz 0dB +6dB
4V 55mV
REMOTE
L L
A1201gti
FRONT INPUTS REAR INPUTS
1 5 6 7
FUSE 40Ax3
- + - +
+BATT REM GND +BATT GND
SPEAKER OUTPUTS
POWER CAPTAP
2 3 4 8
Controls and Connections
1. It allows left and right input channels to be 5. Input-Level Control - Adjusts input sensitivity
for pre-amp level and speaker level inputs.
connected to be amplifier using RCA plugs.
6. The electronic crossover is a 24dB/oct.
Low pass filter which can be Set at any frequency
2. Speaker Output Connector - Connect speaker between 30Hz and 320Hz.
wiring to these connectors. See wiring instruc-
7. The bass boost control will provide up to 6dB of boost
tions on page 4 for more information.
at 50Hz.
3. Fuse - Three 40 Amp ATC type Fuses. 8. External capacitor (Optional)
4. Power Connection for 12V+, GND and REM
connections for power wires. See wiring instruc-
tions on page 4 for more information.
Mounting the Amplifier
The JBL GTI 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.
1. At the chosen site, use the amplifier as a mounting template and mark the locations of the
four mounting holes.
2. Drill a small pilot hole at each marked location.
3. Mount the amplifier and securely tighten the mounting screws.
3
A1201GTI 1 Channel Automotive Amplifier
Typical System Configuration
Cassette/CD Tuner
(Head Unit)
CD Player or Changer
Antenna Input
Power
Antenna
Cassette/Receiver
Power Supply
Wires
Power
Antenna Line
Fuse
Fuse
Relay Level
Input Amplifier
Power
Connection
Black - Power Ground
Antenna Motor Ground
Red - Main +12V
Remote Antenna
Remote On/Off
Power Supply
Black Power
Remote On/Off
Ignition
Switch
60 Amp (Not Included)
Main +12V
Fuse
Power Ground
Vehicle Battery
Speakers
Chassis Ground
4
5
100K/0.5W
R693
104P
1SS133
A1201GTI
270/0.5W D691 C693
R692
10/25V
1SS133 10F
3P
270/0.5W R695
D692
R691
LED01
LED02
BLUE
R694
2.2/2W
102(M)
D G B R
R671
2.2/2W C691 BLACK
1SS133 RED
2.2/2W
2.2/2W
2.2/2W
2.2/2W
4P
D693
KLG-124E
KLR-124E
R672
R673
R674
R675
D694
1SS133
C692 WA02
PAS086-01
5P REV.0
WA03
PAS105-01 REV.0
TH02
IRF3205 IRF3205 IRF3205 IRF3205 IRF3205 5P IRF9640 IRF9640 IRF9640 IRF9640 IRF9640 IRF9640 IRF640 IRF640 IRF640 IRF640
10/0.5WF
10/0.5WF
10/0.5WF
10/0.5WF
10/0.5WF
10/0.5WF
SUB01
220/0.25W
220/0.25W
10/0.5WF
50K 2K
TH01
10/0.5W
MUR3040PT MUR3040PT
Q746
Q745
Q744
Q743
Q742
22 22 22 22 22 R697 R696
100K
100K
REV.0
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