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I have recently bought a pair of Trigon 50M solid state monoblocks. One of them has a problem: it functions intermittently. I turn it on and after a while stops working and instead of sound produces some cracks or is entirely silent. If I turn it of and on functions for a while and gets silent again. Anybody has any ideas ?
Apologies if you already tried the following: Check the speaker cable connections on both the speaker and amp. Also, swap the preamp-to-amp interconnect cables to see if the problem moves with the cables.
If you swap the amps does the problem follow? I'm sure you tried this but here goes anyway. Maybe it's actually a preamp problem, try exercising all of the controls, if this clears up the issue for some time then a deoxit cleaning is needed. Also, have you swapped out the cables?
This is a long, long shot but I have seen this happen. Have you checked the fuses? Sometimes the wire inside a fuse can become disconnected and make a connection on its own. Like I said a long shot but worth checking into....
1. Cold solder goes open when it heats up.
2. Output semiconductor goes open when it warms up.
Get a can of 'cold'
Open case if you have confidence you aren't going to ZAP yourself. The big PS caps will knock you on your ass if you aren't careful. METAL CANS CONDUCT!
When it malfunctions, a gentle (GENTLE) spritz to each output device in turn will disclose the offending device.
Same goes for cold solder joints, though there are many more to check......and they are probably more difficult to get to.
Cold Solder joints frequently look 'less shiney' then the good ones. Or are 'blobbed' up, not 'flowed' into the joinery.
Best bet? Take it to a tech and if HE can reproduce the problem (if you aren't over heating the amp for some 'stacking' reason?) he will probably deduct diagnosis fee from the final fix fee, should you elect to get it repaired.
Too much is never enough
Sounds like heat sensor is shutting it down. Make sure it has plenty of ventilation
Ok stupid question time. Can you duplicate the problem by moving any buttons or functions around?
Thanks for your answer. It has no buttons except on off
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