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Summary of Contents for Boston GTA 602
- Page 1 High Performance Two and Four Channel Ampli ers GTA704 SERVICE GUIDE (no internal changes from GTA504)
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Page 2: Technical Specifications
Technical Specifications: GTA-602 GTA-802 GTA-704 Rated Power (CEA-2006-A): @ 4-Ohm (Stereo): 60 Watts x 2 80 Watts x 2 70 Watts x 4 @ 2-Ohm (Stereo) 100 Watts x 2 130 Watts x 2 125 Watts x 4 @ 4-Ohm (Mono) 200 Watts x 1 260 Watts x 1 250 Watts x 2... -
Page 3: Connections And Controls
13 14 15 Status LED The Boston Logo will illuminate “Blue” under normal operating conditions. The LED will illuminate “Red” during start-up and under fault conditions. If the LED is still red after start-up, please refer to troubleshooting on page 12. - Page 4 Amplifier Troubleshooting Guide Status LEDs on Amplifier not Lit—Head Unit (Source) Turned “ON” Verify Remote turn-on wire from source to amplifier has proper voltage Power (B+) connections at amplifier, terminal blocks, and battery are secure Ground (GND) connections at amplifier and vehicle chassis are secure Battery B+ fuse and amplifier fuse are OK B+ at battery and B+ at amplifier have proper voltage Status LEDs Lit, no Output from Speakers—Speakers in Normal Operating Condition...
- Page 5 GTA704 Service Parts List (new items highlighted yellow) BA PART NUMBER BA PART DESCRIPTION Vendor's No. GTA-504 GTA-704 111-001706 GTA504 HEAT SINK 262-41.1.GTA50470 111-001710 END CAP LEFT 262-46.14.GTA50270 111-001711 END CAP RIGHT 262-46.14.GTA50271 111-001712 END CAP SCREW 019-31.13.1524R02000 111-001715 262-42.1.GTA50470 BOTTOM COVER GTA504 120-003327 MAIN PCB ASSEMBLY GTA504...
- Page 6 EXPLODED VIEW - GTA 704 ( upside down view ) For Reference Only See GTA704 Service Parts List...
- Page 7 BLOCK DIAGRAM for GTA704 VARIABLE CROSSOVER R-ch (50Hz ~ 200Hz) INPUT SENSITIVITY MAIN AMP (200mV ~ 5V) Q-TURN LITE (6dB@45Hz) 50 H 50 Hz 200H 200Hz HIGH INPUT FRONT FRONT VARIABLE CROSSOVER (50Hz ~ 200Hz) L-ch INPUT SENSITIVITY MAIN AMP (200mV ~ 5V) Q TURN LITE Q-TURN LITE...
- Page 8 GTA704 2011. 07.12 MP-09D7 GTA704 SCH...
- Page 9 GTA704 2011. 07.12 TOP VIEW...
- Page 10 R5电阻变更为104P电容 GTA704 2011. 07.12 MP-09D8-00 GTA704 BOTTOM VIEW...
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