Duncan Convertible 2000 Owner's Manual - Page 12

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Rear Controls of the Convertible 2000

1. Fuse Holder: The fuse is located in the cap of the fuse holder. If the fuse fails, it must be

replaced with one that provides proper current protection or you will void the warranty. The proper

fuse rating for the 110-120 v. a c. Convertible 2000 is 5A 250V Slo Blow.

Before removing the fuse cap: UNPLUG THE POWER CORD FROM THE WALL A.C.

OUTLET.

After checking the fuse and replacing the fuse cap, you can plug the amp back into the wall.

To remove the fuse cap, simply grasp the cap with your fingers, push in, and turn counter

clockwise. To replace the cap, grasp the cap with your fingers, push in, and turn clockwise.

Fuses do not wear out. However, they will fatigue after being stressed several times- Fuses are

protection devices that prevent the electronics from damage if there is a serious electrical

problem. If your amp repeatedly has fuse failures, check page 15 under "Fuse Failure" for

troubleshooting tips.

2. On/Off/On Power Switch: switch is designed to turn your amp on and to allow you reverse the

a.c. polarity.

If you're using other equipment like a P.A. and you get a shock when touching the microphone,

place the "On' switch in the other "On" position to eliminate the shock. The middle position is

"Off".

3. Standby: Use this switch when you will not use the amp for a short time period (like

in-between sets). This switch turns off the sound output but keeps the tubes warm and ready to

play.

Standby switches are important on tube amps because the tubes wear out quickest from

temperature change. When the amp is off, the tub" will cool, when they're on, they get hot.

Standby keeps them in operation, so they stay wax= and give you long life. Because of the high

gain circuitry in your amp, it is normal to hear some residual noise through your speaker for one

minute after switching into "Standby."