Panasonic sc-hd550 Operating Guide

RQT5744

Volume is reduced to minimum.

To cancel
Press [MUTING] again. (“MUTING OFF” lights up.)
To cancel from the unit, turn [VOLUME] to minimum (- - dB), then
raise it to the required level.
Muting is also canceled when the unit is turned off.

The level can be adjusted between –6 to +6.

e

r

e

r

You cannot adjust the tone while VGCA on.

VGCA: Variable Gain Control Amplifier
You can achieve a clearer sound by using this feature.

Press  [VGCA].

Generally, the rate of noise (N) to sound (S) worsens as you lower
the volume on an amplifier. With this unit, however, the VGCA
circuit changes the gain between 0 and –6 dB, thereby maintaining
the same S/N ratio. This change in gain is then maintained as you
continue to lower the volume, allowing you to enjoy a better S/N
ratio than if the feature was off.

q

a

Input    

b

Electronic volume control    

c

Variable gain control amplifier   

d

Power amplifier

w

e

Gain variation range    

f

Difference between the S/N ratio when the feature is on and off

g

Reduction in volume

To clean this unit, wipe with a soft, dry cloth.
If the surfaces are extremely dirty, use a soft cloth dipped in a soap-
and-water solution or a weak detergent solution.

¡

Never use alcohol, paint thinner or benzine to clean this unit.

¡

Before using chemically impregnated cloth, read the instructions
that came with the cloth carefully.

Clean the heads regularly to assure good quality playback and
recording. Use a cleaning tape (not included).

S/N

0 dB

–6 dB

OFF

a

b

c

d

f

g

e

OFF