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M250 Amplifier Instructions for Use Page 7 of 8
Issue 4: May 2002
TROUBLESHOOTING
Basic problem-solving with an amplifier is similar to troubleshooting any other electrical or
electronic equipment. Always check the most obvious possible causes first. To give you a few
ideas of what to look for, check the following:
If none of these actions effect a cure, please contact your dealer, or an authorised Musical
Fidelity service agent. Remember, never open the case of the M250 power amplifier yourself,
as this will invalidate the guarantee.
Problem Possible Cause Remedy
No power when MAINS Mains plug not inserted Plug in securely
POWER switch is operated fully into rear socket
No sound Tape monitor function has Switch off tape monitor
been selected on the pre- at the pre-amplifier
amplifier
Wrong connections between Check audio input lead
pre-amplifier and the M250 connections
Speakers not connected, or Check speaker cables
incorrectly wired
In multi-channel use, the Speakers are connected out of Ensure speakers are
sound is not precise, and phase connected correctly
lacking bass and stereo
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