Technics SC-DV290 manual Troubleshooting guide, Listening to the radio, Listening to tapes

Troubleshooting guide

Before requesting service, make the below checks. If you are in doubt about some of the check points, or if the remedies indicated in the chart do not solve the problem, consult your dealer for instructions.

Reference pages are shown as black circled numbers 7.

Common Problems

No sound.	Turn the volume up.
	Switch off the unit, determine and correct the cause, then switch the unit on. Causes include shorting of the
	positive and negative speaker wires, straining of the speakers through excessive volume or power, and using
	the unit in a hot environment.
Sounds unfixed, reversed or	Check the speaker connections. 7
come 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 amplifier. Consult your dealer.
“– –:– –” 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. <
The display starts up even after	The demonstration feature (–DEMO) is on. Turn it off if it is not required. ;
the unit is turned off.
“DVD U11” displayed.	The disc is dirty. Wipe it with a soft cloth. 5
“DVD H ∑∑” displayed.	A problem has occurred. Turn the unit off and unplug the AC mains lead. Wait a moment and then plug the
(∑∑ will be numbers.)	lead in and turn on the unit again. If the unit is still not working correctly, consult your dealer.
Initial settings menu cannot be	Select “DVD” as the source.
accessed.	Cancel all group, program, random and ALL DISC play. C–E

Listening to the radio

Noise is heard.	Use an outdoor antenna. ]
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	Change the frequency step. Hold [TUNER/BAND] down for 10 seconds to change the step to 9 kHz.
be tuned in.

Listening to tapes

Poor quality sound.	Clean the heads. 3
	Check the Dolby NR setting. M
Recording is not possible.	If the erasure prevention tabs have been removed, cover the holes with adhesive tape. S

Enjoying discs

	Sound is distorted.	When you are playing a DVD recorded with Dolby Digital, you can reduce distortion by compressing the
		dynamic range. See Audio–Dynamic Range Compression in the SETUP menus. ^
	“NO DISC” appears on display	There is no disc on the selected tray or the disc is set incorrectly.
	“NO PLAY” appears on display	The disc does not correspond to the unit and cannot be played. 5
Reference RQT6894
		≥Condensation has formed: Wait 1 to 2 hours for it to evaporate.
	Play doesn’t start (or stops
	immediately) when you press	≥This unit cannot play discs other than the ones listed in these operating instructions. 5
	[1] (play).	≥You can only play DVD-Video if their region number is the same or includes the same region number as the
		unit or if the DVD-Video is marked “ALL”. Confirm the region number for the unit on the rear panel1.
		≥The disc may be dirty and may require cleaning. 5
		≥Ensure that the disc is installed with the label of the side to be played facing upwards. >
		≥Check that the DVD-RAM has something recorded on it.