Protection function

This unit is equipped with a protection function for protecting this unit and your speakers from various accidents or problems that can occur.

When the protection function is triggered, the Power indicator goes off and the amplifier stops operating.

Power indicator:

When the power is turned on, the Power indicator lights.

If the Power indicator does not light when the power is turned on, the protection function may be activated. Check whether there is any indication of trouble.

The protection function activates in the following situations:

When a speaker cable may be short-circuited.

When a speaker output contacts ground.

When the unit malfunctions and a DC signal is sent to the speaker output.

When the temperature of internal parts exceeds 120°C (248°F).

When a ground cable of the center unit (cassette receiver, CD receiver, etc.) or this unit is not connected to a metal part serving as an electrical ground passing electricity to the battery's negative - terminal.

Power indicator

SPEAKER OUTPUT

MONO

MONO POWER AMPLIFIER

Connection

Speakers cable connection

 

 

SPEAKER OUTPUT

 

 

MONO

 

 

MONO POWER AMPLIFIER

 

 

T

 

 

UTPU

 

 

O

 

 

SPEAKER

 

 

MONO

 

 

Subwoofer

 

 

Lead terminal

Speaker Selection

(Commercially available parts)

 

The rated input power of the speakers that are going to be connected should be greater than the maximum output power (in Watts) of the amplifier. Use of speakers having input power ratings that are less than the output power of the amplifier will cause smoke to be emitted as well as damage.

Use speakers that have an impedance of 2Ω or greater. When more than one set of speakers are going to be used, calculate the combined impedance of the speakers and then connect suitable speakers to the amplifier.

 

 

 

 

 

 

 

 

 

 

 

 

 

120W

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

240W

 

240W

 

240W

 

 

 

(4Ω )

 

240W

 

240W

 

240W

 

 

 

 

 

 

 

 

 

 

(4Ω )

 

 

 

(4Ω )

 

(4Ω )

 

 

 

 

 

120W

 

(4Ω )

 

 

 

(4Ω )

 

(4Ω )

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4 Ω

 

 

 

 

 

 

 

 

(4Ω )

 

 

 

 

 

 

 

 

 

 

 

 

 

(120W/8Ω )

 

(420W/2Ω )

Ω

 

 

 

 

 

 

 

 

 

 

 

 

Maximum output of

 

8

Ω

 

 

2

 

 

Combined

 

Rated input power and

 

 

 

the amplifier

impedance

 

impedance of the speakers

 

 

English 5