Service manual

4. Check to see that the units in question are either all TPL or all non-TPL. Using
TPL and non-TPL together may produce audible differences at the different
limiting thresholds.
K. Unit has distorted output:
1. Try running the same signal (individually, not looped) into two similar units. If
both units are distorted, check the signal source level for overload.
2. If only one unit has distorted output, swap the entire amplifier with a known
good working unit and see if the problem clears up in the suspect enclosure and
it the problem of distortion moves to the known good working enclosure. This will
determine if the problem is electronic or driver related.
If electronic:
3. Replace the control board with a known good control board (make sure it is
the same model/type) and retry.
Refer to Meyer Sound Self Powered Series Procedure (# 17.033.042.01 for MP-2
and # 17.033.042.01 for MP-4) the procedure also applies to the HP amplifiers.
Or contact the Meyer Sound Service Department for links to service videos for
this product or further assistance.
4. If the unit still does not operate correctly please contact the Meyer Sound
Service Department [e-mail] to open an RA (Return
Authorization) to send the unit in for service.
Meyer Sound Laboratories, Inc.
2832 San Pablo Ave.
Berkeley, CA 94702
510-486-1166
MSPN: 05.033.040.01 REV B
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