20 Most Recent
Lexicon MC-1 Amplifier Questions & Answers
MC1 Switched Power Supply
Hi Hansjo. You may find that if one capacitor has failed, then there may be more. If you see any signs of bulging, leaking, or pushing the bottom out of any caps, then It is a good idea to just change them all. For the small expense, it is worthwhile knowing that your power supply has fresh caps. Try the amp and then see how it goes. If you still have problems, get back to me here and we can talk about it more.
regards
Graeme
Need diagram/schematic for Lexicon MC
As far as I know, Lexicon schematics are only available to authorized service centers. Can you describe the problem that you are having? Perhaps we can assist you with the repair?
Dan
Volume has started to fade
HI DannyPara
If the problems are intermittent, then the amp will most probably be suffering from dry solder joints. This is not uncommon about power devices in the unit like output stages and power regulators. I suggest that the amp needs to be checked over for such problems, and where needed resoldered to bring it back to a reliable state. If you are a gun with a soldering iron, you could do it your self. For this sort of work, I prefer to use solder with a 2% silver content as it produces a mechanically stronger soldered joint, and has a higher resistance to failure from the rigours of heating and cooling that constantly happens in amplifiers. If you think you dont have the skills required(good quality soldering is an practiced, and aquired skill), then get it into a decent repair guy for some attention. If you dont fix these problems,new faults may manifest themselves, and even expensive failures to output stages if left unattended.
Happy to answer any other questions you may have about it, just give me a hoy :) Thanks for using FixYa, If you consider the advice I have given you as sound, a FixYa rating is a great reward for my efforts to help you. Cheers.
regards
robotek
Not finding what you are looking for?