Technics SC-HD81 User Manual

Reference
Troubleshooting guide
Before requesting service, make the below checks. If you can’t fix the system as described below, or if something not here listed occurs, contact the
place of purchase. To install antennas, make adjustments and the sort, contact the place of purchase.
Reference pages are given as black circled numbers.
Probable cause(s) Suggested remedy
[
Problemscommontoallsysems
|
|
Humming is heard while | A power cord or fluorescent lamp is located in the | Keep electric appliances away from the stereo. Try
piaying. vicinity of cabies. piugging the cord in, the other way.
Only one speaker is One of the wires of the speaker cord is Connect the speaker cord correctly. @
emitting sound. disconnected.
c A ies / fe /eicht. ‘ Dp
There is no sound when a The (+) and (—) wire of the speaker cords are Switch the system to the standby mode, and
source js being played. shorted. reconnect the speaker cords so that they are not
shorted. Then switch on the power.
“U70” appears on the Flat cables are not connected steadily. Connect the flat cable steadily. @
display. When the “U70” display is not cleared after the flat
cable have been connected properly, the unit is
damaged. Consult your dealer.
While listening to FM broadcasts
There is a “rushing noise” The transmitting station is a long distance away. If you are using an indoor antenna, change to an
during a stereo broadcast outdoor antenna. ®
which is not audible during
amonau wal broadcast,
You hear excessive noise The installation location and orientation of the
during a stereo broadcast, antenna are unsuitable.
and occasionally the sound
disappears.
The stereo indicator The transmitting station is a long distance away.
flickers and does notlight | The power of the TV set or VCR is ON. Try switching off the TV set or VCR.
completely.
The sound during a stereo There is a building or mountain nearby. Use a high-grade outdoor antenna, and install it ina
broadcast is highly [Distortion is caused by interference between the good location, height, and orientation for reception.
distorted. signal from the transmitting station (direct wave) 8)
and the signal reflected irom the building or
mountain (reflected wave).]
While listening to AM broadcasts
You hear an unusual beat You are using the system at the same time youare | Switch off the TV set, or use the system further
sound. playing a IV set. away from it.
You hear a low-frequency The antenna wire is too close to the flat Move the antenna away from the flat cables/ power
cables /porwer cord. cord.
The correct frequency can | Frequency step is set to 10 kHz. Hold down the FM/ AM button for about 3 seconds
ween ee Ce me nee ee mh be OV TTT A um metered «=.
GC IPCUvCIVeU, {change LLequeiricy Step lu 7 KEI4).
When there is a television set nearby
The picture on the TV The location and orientation of the antenna are If you are using an indoor antenna, change to an
disappears or stripes incorrect. outdoor antenna. @
appear on the screen.
The TV antenna wire is too close to the system. Separate the antenna wire of the TV set from the
While listening to tapes
Sound is low, intermittent, Heads are dirty. Clean the heads. &®
or poor quality, noisy,
Dolby noise reductions is set in the wrong position. | Set it to match the Dolby NR recording mode. &
scratchy, or unsteady.
The deck does not enter the | The erase-prevention tabs are removed from the Attach tape to cover the space left by removal of the
recording mode. cassette. erase-prevention tabs. @

Technics SC-HD81 Specifications

General

Brand	Technics
Model	SC-HD81
Category	Speakers
Language	English