Boss Audio Systems Riot GT1280 Manual de usuario

1000M

Service Manual

MODEL: GT1280

SPECIFICATIONS

Maximum power output (2 Ohms): 500W x 4ch

RMS power Output: 200W x 4ch

Bridged Power Output: 1000W x 2ch

Frequency response: 9Hz - 50KHz

S/N Ratio: 103dB

Low Pass Crossover (Variable) 45Hz - 90Hz

High Pass Crossover (Fixed) 150Hz

Bass Boost (Variable) 0 - +18dB

Power Source Voltage: 14.4V

Ground: Negative

External dimensions: 236(W)x55(H)x520(D)mm

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.

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.

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EXPLODED VIEW

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1000M

- 4 -

PRINTED CIRCUIT BOARD - 1

- 5 -

CIRCUIT DIAGRAM 1

- 6 -

CIRCUIT DIAGRAM 2

- 7 -

PARTS LIST - 1

- 8 -

PARTS LIST - 2

- 9 -

PARTS LIST - 3

Tabla de contenidos

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