Saturday, November 28, 2015

JBL A1201GTI CAR AMPLIFIER CIRCUIT DIAGRAM

CAR AMPLIFIER 

JBL A1201GTI 

CIRCUIT DIAGRAM 


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 adjust the units gain so that with a .250 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 B+ 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.
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.
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.
Controls and Connections

1. It allows left and right input channels to be connected to be amplifier using RCA plugs.
2. Speaker Output Connector - Connect speaker wiring to these connectors. See wiring instruct tions on page 4 for more information.
3. Fuse - Three 40 Amp ATC type Fuses.
4. Power Connection for 12V+, GND and REM connections for power wires. See wiring instruct tions on page 4 for more information.
5. Input-Level Control - Adjusts input sensitivity for pre-amp level and speaker level inputs.
6. The electronic crossover is a 24dB/oct. Low pass filter which can be Set at any frequency between 30Hz and 320Hz.
8. External capacitor (Optional)
7. The bass boost control will provide up to 6dB of boost at 50Hz.
Typical System Configuration
CIRCUIT DIAGRAM 
INVERTER 
PRE AND POWER AMPLIFIER 
DISPLAY CIRCUIT 
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