Onkyo TA-6510

Troubleshooting Guide
The following guide lists problems which do not require professional servicing. If, however, the problem cannot be remedied
using this guide, contact an Onkyo authorized service center for assistance.
e No power. e The skip function does not operate properly.
Cause: Power cord plug is loose Cause: The silent sections between selections are too short or
Remedy: Insert plug properly into outlet. noisy.
e Playback but no sound. Remedy: Use a cassette with sufficiently silent sections of suf-
Cause: Hookup incorrect. ficient length between selections.
Remedy: Check and hook up correctly according to page 4. e Deck does not operate properly.
Cause: Stereo amplifier input selector switch is set to wrong posi- Cause: Tape transport control microcomputer has been exposed to
ton, interference from power supply or static electricity.
Remedy: Change switch position. Remedy: Switch power off for about ten seconds.
Tape does not move.
Cause: Slack tape wound around pinch roller.
Remedy: Take up slack with a pencil (see page 13).
REC button does not engage.
Cause: No tape in cassette holder.
Remedy: Load cassette tape.
Cause: Erasure prevention tab(s) removed.
Remedy: Change cassette or cover tab hole with cellophane
tape.
Hoarse sound, balance unstable.
Cause: Playback head dirty.
Remedy: Clean head (see page 15).
Cause: Tape is stretched.
Remedy: Replace cassette.
e Excessive noise and tape hiss.
Cause: Head has become magnetized.
Remedy: Demagnetize (see page 15).
Cause: Tape with high noise level.
Remedy: Replace cassette.
Distorted sound.
Cause: Distortion in tape.
Remedy: Tape is probably bad but confirm by listening to an-
other.
e Recordings are distorted.
Cause: Recording was done at too high a level.
Remedy: Readjust REC LEVEL knob according to the direc-
tions on page 9.
Tape squeal and skipping.
Cause: Dirty heads, pinch rollers or capstan shafts.
Remedy: Clean (see page 15).
Cause: Cassette shell is binding tape or tape is stretched.
Remedy: Change cassette or try correcting with fast forward
and rewind.
Excessive hum during playback.
Cause: Connecting cables not inserted firmly.
Remedy: Insert plugs finnly.
Cause: Extemal flux leakage from nearby amplifier or TV set.
Remedy: Move deck away from hum source.
High frequencies too strong.
Cause: Dolby NR encoded tape played back with NR off.
Remedy: Select the appropriate NR mode using the DOLBY
NR button. (Dolby B or C) for the tape being played
back.
Cause: Incorrect equalization.
Remedy: Confinn that cassette has tape type detection holes.
No high frequency sounds.
Cause: Non-Dolby NR encoded tape played back with Dolby B or
C NR on.
Remedy: Select the appropriate NR mode using the DOLBY
NR button (OFF).
Cause: Heads have become dirty.
Remedy: Clean (see page 15).
14