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What could have gone wrong? New repainted Quad chassis-parts are available Aug See http: Eventually the fault was traced to R8 being open circuit thus putting an incorrect voltage on IC1.
Is there perhaps another alternative I can use as replacement for or 2SA? But the next question is why? I had a similar problem on a earlier in the year it took a fair amount of time to fix.
Hello again gents Apologies for not keeping you up to date about my MK silent left channel. My problem happened to be R8 but my datashret was that any component failure in the initial stages could manifest itself with further component failure at the outputs.
During the past several years, my worked perfectly without any issues at all until about a week ago when I discovered its left channel had no sound. The amplifier is well-ventilated with nothing on top. All the High-end boards for Quad and are available again as well as the High-end revisio. At the time, I also replaced some smaller capacitors where I could reach those. Could you please be so kind as to instruct an old dufus where to look or what to replace?
I did datasheeg have a replacement 4A fuse in stock and replaced the blown item with a similar sand-filled 3A fuse which also blew immediately. I have to buy some 4A fuses today and will post here re the diagnosis. Which of his recommendations are first choice, if any?
An oscilloscope and sine wave generator also really needed to look at waveforms throughout the circuit. The same thing happened — the same fuse blew again. Power Innovations Thank you and best datashete to all assisting me here.
Whereas amplifiers like the are AC coupled the being DC coupled b be much more difficult to repair. Thank you Mr Pye.
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