Pioneer GM-7300M - Amplifier Kullanıcı El Kitabı - Sayfa 11

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Pioneer GM-7300M - Amplifier Kullanıcı El Kitabı

Additional information

English

Fig. 2 Relationship between the gain of the amplifier and

the output power of the head unit

Head unit volume steps

Amplifier gain

(normal)

(maximum)

If you raise the gain of the amplifier to an improper level, only

distortion is increased and the power increases only slightly.

Maximum gain

Power

Maximum gain

Power

Ir----

Normal gain

• This unit is equipped with a protective function to prevent

malfunction of the unit itself and speakers from too much

output, improper use or improper connection.

• When outputting sound at high volume etc., this function

will cut off the sound output in a few seconds. But this is

not a malfunction. When you turn down the volume of the

head unit the sound output will be restored.

• If sound output is cut, the gain control of this unit may be

improperly set. To ensure continuous sound output at

increased volume of the head unit, set the gain control of

the amplifier to a proper position according to the preout

maximum output level of the head unit (Fig. 1). There is no

need to decrease the volume of the head unit and too

much output is controlled (Fig. 2, Fig. 3).

• If you decrease the volume of the head unit and set the

gain control of the amplifier to the proper position but still

the sound cuts out from time to time, contact the nearest

authorized PIONEER Service Station.

GAIN

~--

Amplifier gain

~ Amplifier gain

(normal)

(maximum)

With high output the signal waveform is distorted, if you raise the

gain of the amplifier the power changes only slightly.

Fig. 3 Signal waveform when outputting at high volume

by the gain control of the amplifier

Preout level: 6.5 V

~((e).

Preout level: 4 V

f(!Jjj;.

Preout level: 2 V

NORMAL

(Standard: 500 mV)

6.5V

O.4V

Fig. 1 Gain control of this unit

Signal

waveform

Signal

waveform