Service manual

(# 17.033.022.01) or contact the Meyer Sound Service Department for links to
service videos for this product or further assistance.
3. If the unit still cycles on/off please contact the Meyer Sound Service
Department [e-mail] to open an RA (Return Authorization) to
send the unit in for service.
H. Unit turns on, but no signal passes or signal intermittent:
1. With the unit on, check the audio signal source for adequate input level. Also
check that signal passes with a known good unit.
2. If the signal level is adequate, check the signal cable for intermittent
connections. This can be accomplished by moving the signal cable back and
forth at each end and at various places within the cable length. Flip the input
polarity switch two times and listen for any change in level.
3. Check to see if the XLR jack is firmly locked in place and that it does not move
inward when engaged.
4. Turn the unit off and slowly remove the amplifier from the cabinet so that the
output harness is visible. Verify that the output driver harness is firmly seated
within the mating connector. Also check for loose wires within the output harness
connector.
5. Verify that the output driver harness is firmly connected to the drivers. This can
be done by removing the driver from the cabinet or by using an ohmmeter to
measure the resistance of the drivers.
Note: Some high drivers will have a capacitor in series making resistance
measurements inaccurate. Check continuity at the driver terminals and not the
connector end of the harness. High drivers can best be reached by removing the
closest handle cup on the cabinet.
6. With the amplifier sitting on a firm surface, remove the eight (8) small head
screws from the user panel.
7. While slowly removing the user panel, disconnect the audio signal cable from
the input board on the user panel by disengaging locking the connector. Also
disconnect the AC input connector (4 wire green connector) on the AC Mains
board.
8. Using a magnifying glass, inspect the solder joints of the audio input board for
broken solder joints. Inspect the locking connector and the XLR connectors.
If broken solder joints or burned resistors are found, the audio input board will
need to be replaced.
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