5
TROUBLESHOOTING
Music Hall phono preamplifiers are manufactured to the highest standards and
undergo strict quality controls before leaving the factory. If, for some reason your
phono preamplifier is not working properly, please take a few moments to review
this list of potential causes.
NO SIGNAL IN ONE OR BOTH CHANNELS:
The phono preamplifier is not connected to the mains power supply.
No mains at the socket.
No connection between the phono preamplifier and amplifier.
Correct input not selected at amplifier.
Poor contact or broken connection between the amplifier or turnable.
Amplifier not switched on.
Amplifier or speakers defective or muted.
Cartridge not wired into the head shell.
Loudspeakers not connected.
LOUD HUM ON PHONO INPUT:
No earth connection from cartridge, tonearm, or audio cable to amplifier.
Ground loop.
Phono preamplifier too close to one or both speakers.
DISTORTED SOUND FROM ONE OR BOTH CHANNELS:
MM/MC switch on pa1.2 incorrectly set.
Dust on the stylus.
Needle or cantilever damaged.
