Sony TC-D5 - Troubleshooting Guide; Common Operational Issues; Recording;Playback and Sound Quality Issues; Howling and Hum Noise

TROUBLESHOOTING GUIDE
Should any problem occur with the set, make the following
simple tests to determine whether or not servicing is required.
If the problem persists after you have made these tests, consult
the nearest Sony Service Station authorized to service tape
recorders {in the USA), the nearest Sony of Canada Factory
Service Station (in Canada) or the nearest Sony dealer {in other
countries).
|FUNCTION BUTTONS AND TAPE PATH
Cassette cannot be inserted.
@ Cassette is being inserted improperly. See page 12.
® The FWD button Is depressed.
The RECORD button cannot be depressed.
@ No cassette in the Cassette Compartment.
@ The cassetie inserted has had the tabs removed. See page 17.
@ The FWD, FF. or REW button has been depressed.
The FWD button cannot be locked.
@ The tape is completely wound onto the righ! reel.
EJECT button cannot be depressed.
@ The FWD button is depressed.
Tape doss not move.
@ The ac power adaptor is not connected (on ac operation).
@ Battery operation is attempted while the ac power adaptor or
car battery cord is connected to the recorder but not to the wail
Outlet or the cigarette lighter socket.
@ Incorrect polarity of batteries
@ Weak batteries.
@ The PAUSE button is locked.
Tape speed is too slow.
@ Weak batteries.
Tape running noise is loud In rewind or fast forward mode.
@ This situation depends upon the cassette used and is not a
problem.
{RECORDING AND PLAYBACK]
‘No sound from the built-in speal
@ The headphones are plugged in.
@ The MONITOR LEVEL control is turned down completely.
No sound from the headphones.
@ The MONITOR LEVEL control is turned down completely
Weak or distorted sound.
@ Weak batteries.
Sound drop-outs, loss of high frequencies, or excessive nolse.
@ Dirty heads. See page 16.
© Magnetized heads. See page 16.
ours
Se,
Poor tone quality tape playback.
‘© Improper setting of the TAPE SELECT switch.
‘© improper position of the DOLBY NA switch.
Recording or playback cannot be made or Is unsatisfactory.
@ Improper procedure or connection. See pages 10, 12 and 14.
© Improper recording level. See page 13.
@ Improper setting of the amplifler controis.
@ The MIC ATT switch is set to “20 dB".
@ Recording from the LINE IN jacks cannot be made when micro-
phones are connected.
@ Weak batteries.
® Dirty Record/Playback Head. See page 16.
@ Magnetized heads. See page 16.
Excessive wow and flutter.
‘®@ Contamination of the Capstan or Pinch Roller. See page 16.
Unsatisfactory erasing.
® Dirty Erase Head. See page 16.
(HOWLING OR HUM NOISE]
Howling occurs when trying to record from the amplifier.
®@ Amplifier Input selector is set at AUX position while the unit is
connected to amplifier AUX jacks. Change the amplifier Input
selector to the recording source position.
Howling occurs when trying to record from microphones.
@ The microphone is too near the speaker. Keep the microphone
away from the speaker or reduce the amplifier volume.
Hum noise.
®@ The recorder is stacked just on the amplifler or tuner,
a