Question about Audio Players & Recorders
I have a Technics stereo integrated amp SU-A900 connected up to a CD player and a turntable and a laptop. The current Drive light comes on after a few seconds of being turned on but it drops out every half hour or so. I took the top off and there is a fat cable that was trapped between the lid and the metal thing that gets hot - so I moved that, there doesnt seem to be any bad wiring or soldering so put it back together and it doesnt happen as much but it still cuts out - this isnt at high volume or anything - any help would be great as its such a nice amp otherwise!
Posted by Anonymous on
I have the same TECHNICS SU A900 MKII as you are talking about and it always runs warm I think using 4R speakers instead of 8R speakers should solve the problem and actually I am thinking of switching to 4R as well.
Posted on Aug 26, 2016
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Posted on Jan 02, 2017
SOURCE: Technics SU-V2 keeps cutting out
An amp will cut out if the output protection circuit kicks in. This circuit compares output power against the preset level. Each channel has it's own, independent protector. There are calculations that can be done, but for a novice the rule of thumb is to "never use a speaker with a power rating less than the amp AND a lower impedance than stated". Typically using a 4 ohm load on a 8 ohm system is inviting disaster. Even if the system does not become a smoke generator, you might notice that though "louder", the sound quality is deteriorated. Many "audiophiles" often hook up some combinations of speakers to have "surround" without really understanding that the collective impedance actually changes (generally lowers).
Posted on Jan 21, 2008
SOURCE: amp cuts out
The fan is ageing and putting noise on the protect line. Replace it or put a 100 uf cap across the fan at the plug. Beware polarity is marked wrong on p.c.b.
Posted on Feb 23, 2008
See there is a problem with the volume conroller as it is 18 years old the controller has worn out replace the volume controller with a new one and you will be able to enjoy great sound again
Posted on Dec 05, 2010
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