SVT-8 PRO Bass Amplifier

Troubleshooting

In the unlikely event that your SVT-8 PRO should malfunction, take a few minutes to troubleshoot it before you call for service. You can save yourself time and money by doing it yourself, and often the cure for the problem is something quite simple.

If the problem isn’t covered above, or if the steps lead you here, then contact your Ampeg dealer for service informa- tion. Also, you should refer your amp for servicing if it gets dropped, has liquid spilled into it, or sustains damage to its power cord (see page 2). Regular maintenance and cleaning should be performed on a routine basis to prolong the ampli- fier’s useful life.

System Block Diagram

 

 

 

TRANSFORMER

 

 

 

BALANCED LINE

 

 

 

OUTPUT

 

 

PRE

 

TUNER

 

POST

MUTE

OUTPUT

PEAK

GND

 

 

 

 

LIFT

PADGAIN

INPUT

 

MUTE

 

 

PREAMP

 

 

 

 

OUT

 

 

 

 

 

 

 

 

 

 

MASTER

 

ULTRA

 

BASS

TREBLE MID

POWER

 

ULTRA

AMP IN

 

LOW

HIGH

 

 

 

 

 

 

 

MID

 

 

 

 

 

FREQ

 

 

 

 

 

 

 

1+

 

 

 

 

1-

2-

 

EFFECTS

 

 

 

2+

 

LOOP

POWER

 

SPEAKERS

 

 

REDUCTION

 

1+

 

 

 

 

 

 

 

 

PULL

1-

2-

 

 

 

ON

 

2+

 

 

DRIVE

POWER

 

 

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