Question about Technics Audio & Video Receivers

1 Answer

My reciever volume cuts in and out and crackles when adjusting

I have a 1977 Technic SA-5270 reciever. The volume sounds crackly and distorted when adjusting. If you tap the knob it sometimes clears up. I would like to replace the volume controler but can't find parts for something this vintage(1977)

Posted by on

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that gotĀ 5 achievements.

    Governor:

    An expert whose answer gotĀ voted for 20 times.

    Scholar:

    An expert who has written 20 answers of more than 400 characters.

  • Expert
  • 93 Answers

You can CLEAN / LUBRICATEthe volume control know with a CONTACT/CONTROL cleaner, I use a product from Radio Shack, this works wonders on drum type electo mechanical devices which are basically volume control knobs, easy to do, just remove the round knob and spray into the openings with the small tube attached, and rotate in both directions, be sure to unplug the unit first, on a few occasions it is best to remove the front panel to acheive better coverage to the rheostat type volume body, anyway it always cures the crackling and distorting sound, I would give this a try before replacing the part.

Posted on Feb 15, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

At low volume it is fine after you get to about 20 on the volume it starts to crack,pop and distort very bad what is making this happen


Your speakers may say 350 watts but that is the peak wattage at which they blow up and not a wattage they can sound distortion free at. Look for the RMS wattage which is probably around 40 watts. If you look at the specs on your receiver you will see it will put out a maximum of about 50 watts but the distortion on the receiver is above 1 percent at anything over 22 watts. That means they are going to start distorting at around half volume. The other thing you might check for is a impedance mismatch between the speakers and the receiver. Is the receiver set up for an impedence output of 8 ohms but your speakers are 4 ohms impedance.

Aug 23, 2015 | Kenwood KDC248U CD Car Stereo Receiver...

1 Answer

The volume gets noisy, cracking sounds and fades out


Your volume control is dirty. Apply some deoxit or wd40 directly onto the module.

Mar 22, 2014 | Panasonic Technics SA-G76 AV Control...

1 Answer

My Harman Kardon AVR 220 reciever's front-right channel isn't working. I have switched the two front speakers and the right speaker works on the left channel so it is not a problem with the speakers or...


if front left is working it is possible u have a dry solder on ur right channel line. try resoldering or if u want to know exactly where dry solder is, shake gently every right channel components and connections. if resoldering does not work it is possible u have a faulty ouput amp for ur right channel. if ur not sure about this i suggest u get it checked by a qualified tech.

Apr 05, 2010 | Harman Kardon AVR 220 5.1 Channels...

1 Answer

The sound is distorted and overwhelmed by static


Depends what the real problem is.

Is it related to certain sources only - try new or reseated cables,swap it to a different input; single channel - swap to isolate; or certain controls that have become noisy? A shop might be able to get some tuner cleaner into them.

Mar 12, 2010 | Panasonic SA-XR25 Receiver

1 Answer

I have an old onkyo a-8067 reciever and only the left side speakers work. A while back the right side was fading and now it doesn't work at all. I also have a sony STR D1015 home theater receiver that has...


Fixed the Onkyo. Took apart the balance adjuster and rebent the feather-like things inside so they made contact. Clamped it back together and it works fine.

Nov 26, 2008 | Audio & Video Receivers

1 Answer

I Have an NAD 710 receiver, it crackled then volume went a little lower and when turned up begins to distort with no grunt, no longer crackles but the lower volume problem remains


YOU SOUND VERY KNOWLEDGEABLE IN THIS FIELD,BUT ITS BEEN MY EXPERIENCE IN THE PAST TO START SIMPLE(@ MAYBE YOU HAVE)SOUNDS LIKE THE SAME PROBLEM MY MARANTZ HAD ,IT WAS A SIMPLE MATTER OF TAKING CONTACT CLEANER TO THE POT'S & SWITCHES.(TRY SPRAYING IT DOWN THE SHAFTS;SWITCHES ,ECT....)MY MAIN PROBLEM WAS WITH THE A-B-C SPEAKER SWITCH,MUTE & VOLUME.AFTER WORKING THEM,THE PROBLEM CLEARED UP.DUST & BUILDUP(ALOT OF TIMES FROM MINIMAL USE OR STORAGE)CONTRIBUTE TO THIS PROBLEM;ASWELL AS CORROSION OF THE CONTACTS & COILS.GIVE THIS A TRY & SEE IF IT DON'T HELP.BEST REGARDS TO YOU ALSO;HOPE THIS HELPS.THAXNX FOR USING FIX-YA(PLEASE RATE)

Nov 08, 2008 | NAD Audio & Video Receivers

2 Answers

Technics SA-DA10 jumps into overload after 10 minutes


Have you tried connecting speakers? What was the result?

Yes, when you turn the volume up on these amps (or when the output gets past a certain level) the cooling fan should automatically come on.

Oct 14, 2008 | Technics SA-DA10 Receiver

1 Answer

Noisy channel of receiver


Generally, crackling noises come from anyplace there is a mechancial connection for the sound signal. The volume control, main/remote speaker switch and possibly the headphone jack. That is where the contacts must be cleaned, but it requires dissassembly. Try operating the main/remote speaker switches, and plug/unplug a headphone several times. I am assuming there is still audio behind that crackling. Are you using both main and remote speakers simultaneously?

Apr 09, 2008 | Audio & Video Receivers

2 Answers

Technics SU-G91 Left channel bad


Did you ever find the solution to the left channel issue? I have the same problem with mine.

Dec 02, 2007 | Technics SA-AX540 Receiver

1 Answer

PANASONIC SA HE9 RECIEVER 5.1


If the sub has a volume control, turn it down then turn up the volume on the amp to the very high volume you mentioned. If it still has very low muffled sound, then we know the problem is about the amp.

Apr 24, 2007 | Panasonic SA-HE90 Receiver

Not finding what you are looking for?
Audio & Video Receivers Logo

Related Topics:

431 people viewed this question

Ask a Question

Usually answered in minutes!

Top Technics Audio & Video Receivers Experts

Donald DCruz
Donald DCruz

Level 3 Expert

17129 Answers

yadayada
yadayada

Level 3 Expert

60667 Answers

 Grubhead
Grubhead

Level 3 Expert

4576 Answers

Are you a Technics Audio and Video Receiver Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...