GTO752 2 CHANNEL POWER AMPLIFIER SERVICE MANUAL JBL Consumer Products 250 Crossways Park Dr. Woodbury, New York 11797 Rev1 1/2008 Released 2007 Discontinued XXXX...
12 1/4 x 10 3/8 x 2 1/8” (310 x 263 x 53mm) Fuses: JBL continually strives to update and improve existing products, as well as create new ones. The specifications and details in this and related JBL publications are therefore subject to change without notice.
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GTO752 GTO752 CAR AUDIO POWER AMPLIFIER OWNER’S MANUAL 0 Speaker Output Connectors 7 Crossover-Filter Selector Installation Warnings and Tips • Connect the speakers to these terminals, • LPF: Select for subwoofer(s). • Disconnect the negative (–) lead from your vehicle’s observing proper polarity.
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GTO752 Amplifier Troubleshooting Guide 1. Status LED on Amplifier not Lit - Head Unit (Source) Turned ON Verify: A. Remote turn-on wire from source to amplifier has proper voltage B. Power (B+) connections at amplifier, terminal blocks, and battery are secure C.
GTO752 EXPLODED VIEW Part Number Part Number Trans. Clamp Trans. Clamp Trans. Clamp 1380-0206-00 RCA Cap (Red) RCA Cap (Wht) Front Plate Standoff...
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GTO752 BLOCK DIAGRAM INPUT L 100K 100K 4 ohm/2 ohm speaker MODE HP/FLAT/LP BASS BOOST MAIN AMP VARIABLE LPF/HPF VARIABLE FRONT L 32Hz-320Hz/12dB 0dB-6dB/50Hz BTL-4ohm speaker MODE HP/FLAT/LP BASS BOOST MAIN AMP VARIABLE LPF/HPF VARIABLE FRONT R 32Hz-320Hz/12dB 0dB-6dB/50Hz 100K...
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GTO752 GTO752 Electrical Parts List Part Number Description Reference Designator MAIN PCB Resistors 0702-34R7-02 Resistor 1/2W 4.7Ω ±5% R25B R25C 0702-3220-02 Resistor 1/2W 22Ω ±5% R46 R20 R19 0702-2221-02 Resistor 1/4W 220Ω ±5% R20B R20C 0702-1220-02 Resistor 1/8W 22Ω ±5%...
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GTO752 Description Part Number Reference Designator MAIN PCB 06D328237200 Capacitor 823/100V ±5% C104A C105A C102A C103A 06D232207000 porcelin Cap 22pF/100V ±20% C101A C100A C109A C108A 06D231007001 porcelin Cap 10PF/100V ±20% 105℃ C227 C226 C215 C214 C225 C222 C221 C220 C219 C218 C3C C3B C2C C2B...
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GTO752 Part Number Description Reference Designator MAIN PCB PL-A0050-000 Alum. Bar with Insulated paper 14.0x7.0x40.0 PL-A0049-000 Alum. Bar with Insulated paper 14.0x7.0x60.0 PWM PCB Resistors 0701-2221-03 SMD resistor SMD 220Ω 1/8W ±1% 0805 0701-2101-03 SMD resistor SMD 100Ω 1/8W ±1% 0805...
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