Plinius Audio SA-103 Bedienungsanleitung PDF herunterladen (Seite 17)

SA-103 FEATURES

ERROR DETECTION

The Plinius SA-103 Power Amplifier has in-built error detection. This will function under the following

conditions:

• When the amplifier is overdriven/clipped

• If any internal fuse is damaged

Should either of these circumstances arise the amplifier will disconnect both channels and mute the input.

This condition will remain until the input signal level is reduced or the damaged fuse replaced. When

error detection is triggered the power LED will turn off and the mute LED will pulse. The internal error

LED (located towards the front of the circuit board in the top cavity of the amplifier) will also light.

FUSE PROTECTION

When any internal fuse is damaged one or more fuse warning LEDs will light. These LEDs are under the

amplifier lid located near the centre of the main circuit board with the rail fuse holders. If any of the

internal fuse LED’s are glowing, the lid of the amplifier will need to be removed and the fuse adjacent to

the lit LED should be replaced. Replace them with the same type (10 amp normal blow).

IMPORTANT: DO NOT FIT A FUSE WITH A HIGHER RATING.

Please note that fuse failure may indicate a severe problem. Check all speakers and speaker cables for

damage/short circuit etc. Should the amplifier continue to exhibit rail fuse failure contact your PLINIUS

dealer.

ECOLOGIC CONTROL

The Plinius SA-103 is also fitted with a microprocessor which monitors and performs the Bias and Mute

functions. It is programmed to switch the amplifier back into Class AB if no signal has been present at the

input for a predetermined time. This time can be adjusted to Off, 15, 30 or 60 minutes. During the last

minute without signal the bias LED will pulse to indicate the unit is about to return to Class AB. The

purpose of this function is to prevent the amplifier being left in Class A while unattended for a long period

of time.

To adjust this time constant the amplifier lid must be removed and the small jumper JP4 located on the

main circuit board at the front left shifted to the appropriately labelled pins. Please ensure that your

amplifier is switched OFF and disconnected from the mains supply before this adjustment is made. The

factory setting is 30 minutes.

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Plinius Audio SA-103 Bedienungsanleitung Seite 17