To engineers in charge of repair or inspection of our products.

Before repair or inspection, make sure to follow the instructions so that customers and Engineers in charge of repair or inspection can avoid suffering any risk or injury.

1. Use specified parts.

The system uses parts with special safety features against fire and voltage. Use only parts with equivalent characteristics when replacing them. The use of unspecified parts shall be regarded as remodeling for which we shall not be liable. The onus of product liability (PL) shall not be our responsibility in cases where an accident or failure is as a result of unspecified parts being used.

2. Place the parts and wiring back in their original positions after replacement or re-wiring. For proper circuit construction, use of insulation tubes, bonding, gaps to PCB, etc, is involved. The wiring connection and routing to the PWB are specially planned using clamps to keep away from heated and high voltage parts. Ensure that they are placed back in their original positions after repair or inspection. If extended damage is caused due to negligence during repair, the legal responsibility shall be with the repairing company.

3.Check for safety after repair. Check that the screws, parts and wires are put back securely in their original position after repair. Ensure for safety reasons there is no possibility of secondary ploblems around the repaired spots. If extended damage is caused due to negligence of repair, the legal responsibility shall be with the repairing company.

4.Caution in removal and making wiring connection to the parts for the automobile. Disconnect the battery terminal after turning the ignition key off. If wrong wiring connections are made with the battery connected, a short circuit and/or fire may occur. If extensive damage is caused due to negligence of repair, the legal responsibility shall be with the repairing company.

5.Cautions regarding chips.

Do not reuse removed chips even when no abnormality is observed in their appearance. Always replace them with new ones. (The chip parts include resistors, capacitors, diodes, transistors, etc). The negative pole of tantalum capacitors is highly susceptible to heat, so use special care when replacing them and check the operation afterwards.

6. Cautions in handling flexible PCB

Before working with a soldering iron, make sure that the iron tip temperature is around 270... Take care not to apply the iron tip repeatedly(more than three times) to the same patterns. Also take care not to apply the tip with force.

7.Turn the unit OFF during disassembly and parts replacement. Recheck all work before you apply power to the unit.

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Boss Audio Systems GT380 service manual
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GT380 specifications

Boss Audio Systems GT380 is a versatile and powerful car audio amplifier designed to enhance the sound experience in your vehicle. Known for its robust performance and innovative features, the GT380 is an excellent choice for audiophiles and everyday users alike who want to upgrade their car's audio system.

The GT380 offers a peak power output of 380 watts, allowing it to deliver a clear and dynamic sound across a wide range of frequencies. It features a Class A/B amplifier design which ensures high efficiency while maintaining excellent sound quality. One of the standout characteristics of the GT380 is its adjustable gain control, which gives users the flexibility to customize their audio preferences according to individual tastes and vehicle acoustics.

A key technology integrated into the GT380 is its built-in low-pass filter, which helps in eliminating unwanted frequencies and enhances the overall sound clarity. This feature is particularly useful for subwoofers, as it ensures that the amplified signal only includes low frequencies, resulting in cleaner bass output. Additionally, the amplifier comes with a high-pass filter option designed to protect full-range speakers from low-frequency distortion, thereby prolonging their lifespan and improving performance.

The GT380 is designed with user convenience in mind. It includes RCA outputs for easy connection to head units, and the wiring is simplified with a user-friendly layout, making installation a breeze. It is also equipped with protection features such as thermal overload protection and short circuit protection, which safeguard the amplifier from damage and ensure reliable performance.

Another notable aspect of the Boss Audio Systems GT380 is its sleek and compact design, allowing it to fit easily into various installation spaces without sacrificing style or functionality. The amplifier is built with durable materials that can withstand the rigors of automotive environments, ensuring longevity and dependable operation.

Overall, Boss Audio Systems GT380 is not just about power; its combination of advanced features, flexible connectivity options, and thoughtful design makes it an attractive choice for anyone looking to elevate their car audio experience. Whether you are a casual listener or a serious audio enthusiast, the GT380 provides the tools necessary to achieve an exceptional sound environment in your vehicle.
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