Question about Technics SCEH790 CD Shelf System
The standby red light is on my stereo but there is no display. now when i press the power button to turn it on a low pitched sound comes from the speakers for a second and then the stereo just goes back to standby. i have changed the fuse in the plug but this has had no effect. now i think the speaker wires were loose once when this problem started could this have shorted the system somehow if they touched each other or the system? if so can you think of a solution as i think the warranty is up . a reply would be much appreciated,thanks for your time.
Hi had the same problem with a friend of mine stereo there should be some internal fuses maybe three or four by the transformer. check all three with a multi tester or hold them up to a light to see if they have a break in the wire they some times blow if the speaker wires touch just replace if blown and should be ok hope this helps.... good luck.
Posted on Jul 11, 2008
I had same problem with my sterio it displayed F61 error and to be honest it was worth reapiring the total cost of repair was only £120 so for a quite expensive sterio i thought it was worth it
Posted on Aug 24, 2007
Buy a nice used stereo but keep the speakers! they might come in handy dont forget to snip the 3.5 MM plug off if the new stereo hass binding posts or tab connectors
Posted on Feb 25, 2007
You are right the problem is a power supply problem. If it shows F61 then it may be the amp, or the processor, in both cases its not worth the repair
Posted on Feb 22, 2007
Its too bad this is a solid state system and has no user replaceable parts inside unless you have some knowledge of printed circuit board repairs. It sounds as there may be a power supply problem or the output devices are bad and loading down the power supply. These days, most of these type of systems, do not pay to have them repaired, unless you want to of course. I have found most repairs with the labor are almost or exceed the cost of a new one. Hope this helps. Good Luck Ps Please dont forget to rate this thread
Posted on Oct 18, 2006
SOURCE: technics seperates
I'm not familiar with the exact system you have but the simplest cause to this problem woulf be a sticky switch, since power is reaching the system for the stand by light to come on.
It is possible to test switches like this by opening up the stereo and touching an unbent paperclip across the two metal contacts that go into the switch. If it comes on then you know your switch is bad, however be warned that running electrical equipment with the casing off puts you at risk of receiving a shock if you touch the wrong part so I don't officially recommend this.
If the switch is faulty then you can either try cleaning it by spraying a contact cleaner such as IPA into it or just replace the part (though this will require soldering).
Otherwise, some stereo systems have an internal fuse that will blow to protect the circuit if you overload it so have a look for fuses on the circuit board.
Posted on Nov 27, 2007
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