Technics Troubleshooting Common Issues in Home Theater Systems

Troubleshooting guide

Before requesting service, make the below checks. If you can’t fix the system as described below, or if something not listed here occurs, refer to the enclosed directory to locate an Authorized Service Center convenient to you or contact your dealer.

Reference pages are shown as black circled numbers 6.

Common Problems

No sound.	Turn the volume up.
	The speaker cords may be shorted. Turn the unit off, check and correct the connections and turn the
	unit on. 6
Sounds unfixed, reversed or come	Check the speaker connections. 6
from one speaker only.
Humming heard during play.	An AC mains lead or fluorescent light is near the cables. Keep other appliances and leads away
	from this unit’s cables.
	If possible in your area, turn the AC mains lead’s plug or connector over to reverse the lead’s
	polarity.
“ERROR” is displayed.	Incorrect operation performed. Read the instructions and try again.
“U70” is displayed.	Connect the flat cables firmly. If “U70” remains on the display, contact the dealer.
“F61” is displayed.	There is a problem with the tuner amplifier. Consult your dealer.
ECO mode on but display still	Turn DEMO off. ;
lights up in standby mode.
“– –:– –” appears on the display.	You plugged the AC mains lead in for the first time or there was a power failure recently.
	Set the time. ;
Listening to the radio
Noise is heard.	Use an outdoor antenna. 7
The stereo indicator flickers or
doesn’t light.
Sound is distorted.
A beat sound is heard.	Turn the TV off or separate it from the unit.
A low hum is heard during AM	Separate the antenna from other cables and leads.
broadcasts.
The correct AM frequency can’t be	Change the frequency step. Hold [TUNER/BAND] down for 10 seconds to change the step to 9 kHz.
tuned in.

When there is a television set nearby

The picture on the TV disappears or stripes appear on the screen.

The location and orientation of the antenna are incorrect. If you are using an indoor antenna, change to an outdoor antenna.

The TV antenna wire is too close to the system. Separate the antenna wire of the TV set from the system.

The cassette deck

Reference

Poor quality sound.	Clean the heads. [
	Check the Dolby NR setting. B
Recording is not possible.	If the erasure prevention tabs have been removed, cover the holes with adhesive tape. N

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