ZETA Music Systems PB-304 User Manual
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Owner's Manual
Zeta Music
There are two thumb screws beneath the bridge. The bridge may be raised or lowered on both sides
to accommodate your playing style. It is recommended that the strings be slightly loosened before
making any adjustments. Do not use pliers on the thumbscrews as the instrument's finish and
screws may be damaged. Also, intonation may be adjusted by changing the angle at which the
bridge meets the strings.
DOUBLE ADJUSTING TRUSS ROD
The truss rod is located where the neck meets the body. Turning the truss rod clockwise adds
tension and up-bow to your neck; turning the truss rod counter-clockwise relieves tension and
adds down -bow to your neck. We recommend that you have your neck adjusted seasonally by a
qualified instrument repair person or luthier, or at your local Authorized ZETA Dealer.
BATTERY
This instrument contains quiet pre -amplified electronics within the compartment on the back of the
instrument. Two 9-volt batteries power the circuitry and should be changed after 1,000 hours of
playing use. Plugging in the ¼" cable activates the preamp. When the instrument is not in use
(overnight), unplug the amplifier cord from the ¼" jack so that the battery is not being discharged.
TROUBLESHOOTING
Don’t Panic!
No Output
1.
Try increasing volume.
2.
Try using a different ¼" cable.
3.
Try replacing the internal 9-volt batteries with fresh ones.
String(s) Dead or Low Level Output
1.
Check to see if the string is sitting properly on the bridge.
2.
Check to ensure that the steel ball at the end of the string is in good contact with the tailpiece.
If necessary, scrape away any thread winding on the string that may be preventing a clean
metal-to-metal contact.
3.
Try replacing the internal 9-volt batteries with a fresh ones.
4.
Try raising the internal volume of the affected string(s).
Hum, Hiss or Distortion
1.
Try using a different ¼" cable.
2.
Your amplifier may not be properly grounded. If your amplifier has a "ground reverse" or
"ground lift" switch, try changing it's position.
RETURNING UNITS FOR SERVICE
If your unit requires service, please follow these steps:
1.
Contact your authorized Zeta Dealer for a Return Authorization (RA) number.
2.
Pack the unit in its original carton with packing materials.
3.
Please include a note with the following information:
a.
A brief explanation of the problem you are experiencing.
b. Your full contact information: Full name, street address, city, state, zip, country (if not
USA), phone number(s), and email address.
c.
Copy of your original purchase receipt.
3.
Write the RA number on the outside of the shipping container. Shipments sent to ZETA without
an RA number are refused.