CHART SEVEN

Sound poor on phono only (other sources OK)

Both channels

Try other LPs. Clean stylus.

Sound OK:

Bad pressing, damaged record, or stylus was dirty.

No improvement:

Check speed setting.

Sound OK:

Wrong speed setting.

Speed setting OK:

Check for flutter and rumble.

High rumble or flutter:

Clean belts and pulleys. Lubricate spindle bearing according to manufacturer's instructions.

Flutter and rumble OK:

Check stylus assembly. If stylus cantilever is bent or twisted, or more than two years old, replace stylus. If stylus is not user replaceable, replace cartridge.

Sound improves:

Dirty drive mechanism.

No improvement:

Have turntable serviced.

Sound OK:

Stylus was defective.

No improvement:

Check stylus force. If required, adjust to upper end of stylus force range recommended by manufacturer.

Sound OK:

Stylus force was inadequate.

Sound still poor at upper end of manufacturer's stylus force range:

Check for acoustic feedback and phono stage instability by placing stylus on record with turntable off, but amplifier on. Set bass controls (if any) to normal listening position, then turn up volume control slowly to above loudest listening level.

Speakers begin low-pitched howling, ringing, or flapping noise:

Lift stylus off record.

Nothing happens except increase in hum and hiss:

Tonearm bearings may be binding or stylus assembly is defective.

Noise stops:

System has acoustic feedback. Isolate turntable using Sorbothane pucks or other isolation platforms or materials, or move speakers to another location.

Noise continues:

Turn down volume control until noise stops. Preamp or integrated amp is unstable, and requires service.

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