First Act MA120 important safety instructions Faceplate, Backplate, Replacing the Fuse

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FACEPLATE

1

2

3

4

5

6

7

8

9

10

11

12

CHANNEL 1

CHANNEL 2

BACKPLATE

13

14

15

16

1.INPUT JACK

Connect instrument cable here (1/4” jack).

2.MASTER

Controls the total output level of amplifier.

CHANNEL 1 – CLEAN CHANNEL

3.LEVEL

Controls the output level.

4.TREBLE

Adjusts high frequency output.

5.BASS

Adjusts low frequency output.

6.CHANNEL SWITCH

Switch off/out for Channel 1–indicated by green LED.

Switch on/in for Channel 2–indicated by red LED.

7.LED

Indicates amplifier power on/off.

SPECIFICATIONS

CHANNEL 2 – DISTORTION CHANNEL

8.LEVEL

Controls the output level.

9.GAIN

Controls the input level. Increasing gain adds distortion, or overdriven rock tone; decreasing gain produces a cleaner sound.

10.TREBLE

Adjusts high frequency output.

11.MIDDLE

Adjusts middle frequency output.

12.BASS

Adjusts low frequency output.

13.POWER ADAPTOR/ FUSE COMPARTMENT Connection for power cable. Use only the power cable supplied with this amplifier.

14.POWER On/off switch.

15.AUDIO IN

Input jack for external audio device such as CD or MP3 player (device should have its own volume control).

16.PHONES

Connects to stereo headphones, which cancels speaker output.

Output Power:

Input Sensitivity:

Dimensions: (LxWxH)

20 watts RMS

26 mV

12.5" x 13" x 6.75"

Frequency Range:

Power Supply:

Weight:

40 Hz ~ 8 kHz

Detachable,

15 lbs.

Speaker:

UL-approved

 

8" / 25W / 4 ohms

 

power cable

SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE

 

REPLACING THE FUSE

An additional fuse has been enclosed in the fuse compartment of your amplifier, directly below the power input. The fuse compartment contains an active fuse and a replacement. The fuse protects against power surges. If your amplifier does not power up as usual, the fuse may need to

be replaced.

If the fuse fails:

1.Turn the amplifier power off.

2.Unplug the amplifier.

3.Detach the power cord and set aside.

4.Carefully insert a flathead screwdriver to open the fuse compartment. Be careful not to break the fuse inside.

5.Remove the blown fuse from the inner (active) slot.

6.Move the new fuse from the outer slot to the inner slot.

7.Close the fuse compartment.

8.Discard the blown fuse.

Note: If you replace the fuse and the amplifier still does not power up, have the unit checked by a qualified repair technician.

CAUTION REPLACE ONLY WITH SAME. TYPE 250V, 1A FUSE

USING ANOTHER TYPE IS A POTENTIAL FIRE HAZARD.

Open the fuse compartment.

ACTIVE FUSE

REPLACEMENT FUSE

Remove the blown fuse from the inner (active) slot. Move the new fuse from the outer slot to the inner slot.

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Contents MA120 ManualReplacing the Fuse FaceplateBackplate