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200M ENTERTAINER STEREO MIXER
OWNER'S MANUAL
IN CASE OF DIFFICULTY
Troubleshooting Notes:
1 .Do not use substitute components on the amplifier.
Proper operation of the 200M cannot be achieved
with substitute components. Use only Electro-Voice
supplied replacement components.
2. Do not drive the amplifier at high frequencies
without an 8-ohm load attached.
3. Do not bring up the power amplifier on a variac. If
power is brought up slowly, abnormal conditions
could occur, resulting in further damage.
4. Do not turn the unit off and back on rapidly. Wait
at least ten seconds before turning the unit back on,
otherwise turn-on thumps may occur.
The problems listed below are typical ones that may
be experienced with the mixer.
No power to the mixer.
1. Make sure that the mixer is plugged into an ac
outlet and that the outlet has the correct operating
voltage. Also, if an extension cord is used, make sure
that the cord is not defective.
2. Make sure the POWER switch is on.
3. Check the line fuse on the back panel of the mixer.
Unplug the line cord. Unscrew the fuse cap and look
at the fuse. If the element is open, replace it with the
same type and rating as indicated on the back panel.
Plug in the line cord. If the fuse is open and it is
replaced, it may open again. If this occurs, unplug
the line cord immediately and seek a qualified tech¬
nician to find the problem. Fuses that burn out when
the power is turned on indicate a serious circuit
problem.
Mixer operated normally, then turned off.
1 Check to make sure that the line cord plug did not
accidentally become disconnected.
2.Check the outside of the case, especially the rear
panel.
If it is very warm, it is possible that the
amplifier's thermal switch may have opened due to
the heat. If this happens, turn the POWER switch off
and allow the unit to cool. Then turn it on once more
and see if the condition is corrected. Make sure that
the unit is placed in a well-ventilated area.
Mixer's POWER indicator glows, but there is no
output from the amplifier.
1 Check the speaker connections. One of the cables
may be loose, either at the speaker terminals or at
the power amplifier output jack. Also check the wire
connections inside the plug.
2. Make sure the speaker fuses have not opened (if
fuses are being used).
3. The LEFT or RIGHT AMP IN jacks may have a
connector inserted.
If this happens, the internal
power amplifier signal is interrupted.
4. Check the speaker cable for shorted connections.
One of the mixer channels is inoperative.
I.Use another input channel that is operating.
If
there is still no output, the device is probably the
problem. If the unit works in the other input channel,
check the Fader and GAIN controls for the dead
channel. They may be all the way down.
Channel has a high hum or noise level.
1 .Check the input cable for each channel. There may
be a broken ground wire somewhere.
Mixer's MAXIMUM POWER indicators glow, but
no sound is present.
1.Check the speaker cables and plugs for shorted
connections.
2 .Check the number of speakers hooked up to the
mixer. Too many speakers will cause the load im¬
pedance to be low.
twenty-five
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