V-4B Bass Guitar Amplifier
In the unlikely event that your V-4B should malfunction, take a few minutes to trouble-
shoot 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 you think the
problem may be worn out tubes, see page 9 for symptoms of tube failure.
If the problem isn’t covered above, or if the steps lead you here, then contact your
Ampeg dealer for service information. Also, you should refer the amp for servicing if it
gets dropped, has liquid spilled into it, or sustains damage to its power cord.