Airspeed FM-25 소유자 매뉴얼 - 페이지 7

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2. The Back Panel

Section 1

PWR/OFF – Tube amps like to be warmed up when they're initially turned on. Putting the amp in

Standby (STBY) mode, and then switching the power (PWR) switch to 'On', allows the amplifier to be

turned on while restricting full voltage from reaching the power tubes until they've had sufficient time to

warm up, thus protecting them and prolonging their life.

It is also recommended that your amp be turned off in the reverse order, standby switch to STBY mode,

before moving the power switch to 'Off'.

Voltage Selector – Use this control to select the voltage for the country you are in. For example, in the

USA, switch it to 115v. In contrast, for most of Europe, it should be switched to 230v. If you are unsure of

what voltage your country uses, it may be helpful to consult the following web page:

Section 2

This is where the included power cable is plugged into to. When switching from 115v to 230v or vice

versa, the mains fuses must also be changed. These two fuses are located in a tray below the AC mains

IEC cable socket (the power cable input). You can remove it by prying it open with a small screwdriver or

hooked implement, after which the fuse tray can be removed. The fuses installed in your Airspeed FM-50

amplifier are correct for the default setting (115v or 230v) as set when received from the factory. Replace

the fuses as follows:

When the switch is at 115v, use two (2) 4-amp fuses

•

When the switch is at 230v, use two (2) 2-amp fuses

•

Section 3

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Airspeed FM-50 Owner's Manual, Ver 2.0

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