emacs@vger.UUCP (05/20/85)
I have had an interesting problem in that my speakers will automtically shut off at times. I have a Sony STR-V35 (35 watt per channel), a pair of Sony 40 watt speakers, Sony DD Turntable, and Technics cassette. The speakers will either cut off with out warning, or you will hear a noise link dragging a needle across a record before it will turn off. Usually within a half a minute, they will click back on. This also happens when the speakers are physically off (listening to headphones). This has also happened on a friend of mines Technics tuner. His father tracked it down to the speaker overload chip, of which I know I have, but it is not the same one as his. Are these chips bad? How sensitive are they? I do have lots of other electronic equipment in the room with the stereo, such as TV, VCR, Modem, Terminal. Is it the simple fact that my speaker wires are acting like antennas, and picking up radiation and thereby triggering the overload circuit? Is my only course of action to go out and spend lots of money on high quality shielded speaker cables? This tends to be a rather annoying problem, dragging me more to the television. Any helps is appreciated... -- --------------------- ...Lying on the beach in the sun... | |------------------------------------------------------- | Michael E. Dove | Usenet: ucbvax!hplabs!pesnta!parallel!ucscv!emacs | | CIS Consultant | ihnp4!sun!parallel!ucscv!emacs | | UC Santa Cruz, CA | CSNet: emacs@ucsc.csnet | | | Arpa: emacs%ucsc.csnet@csnet-relay.arpa | ---------------------------------------------------------------------------- --
hbb@mtx5d.UUCP (H.B.Braude) (05/23/85)
I have had similar experience with a Heathkit audio amp which
would cycle on and off after a short while. The problem in my
case was termperature which was high enough to trip the heat-
activated circuit breakers. They would cut back in when the
temperature of the amp would drop.
Perhaps your unit isn't getting proper ventilation.
--
Harlan B. Braude
{most "backbone" sites}!mtx5d!hbbbrandx@ihlpl.UUCP (h. weisberg) (05/23/85)
> The speakers will either cut off with out warning, or you will hear > a noise link dragging a needle across a record before it will turn off. > Usually within a half a minute, they will click back on. I've had a similar problem with my Harmon-Kardon A402 amp. The same problem occurs with Harmon-Kardon A430 amps, according to the technician who worked on my amp. All I needed to have done was have the switches and contacts cleaned in the amp. A friend tried using freon to do the job, but it didn't work. Supposedly, there's some new chemical that not only cleans the switches, but also provides some level of protection to lessen the chances of the problem reoccurring.
bhs@siemens.UUCP (05/23/85)
Funny, my car stereo would do the same thing, and it turns out that I had a problem with faulty speaker connection, which caused the stereo booster to overheat. Thus, the temperature switch would kick in, making a most hideous screeching noise. Then, a short while later, it would play again. Bernard H. Schwab Siemens RTL, Princeton, NJ