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Pyramid (PS36KX) 600-Watt Power Supply Questions & Answers
Re: Pyramid PS-36kx power supply buzzer sounded,red light came on
Hi! I saw your question, and maybe this will help. I also have a Texas Star 100w amp, and this same power supply. Even though the nominal draw for your equipment is way below the rated amp flow of the power supply, when you key up, and the output on the amp is at max, you are drawing the limit of your power supply! Try running this setup at a lower linear output. You don't need the full 100 watts to get out! 60-80 watts is aplenty! You should start at a low output, and slowly increase the output(while keyed up), untill the power supply starts to complain.(buzzer/light). This is what your limit will be. The only other cure, is a MUCH bigger power supply. Unfortunately, I cannot afford a 60-90 amp supply, so this is what I am forced to do to use the one we have. Also,keep your cb's output very low when using the linear amp. These amps are supposed to get a low signal from your radio, or the linear amp is overdriven. (noisy and unstable. Hope this helps you! 73's to you! jimsjinx
Warning light on says refer to manual
you have specialist equipment, i recommend it is sent to a specials for calibration.
i could be that the warning is somehow connetied and calibration will ensure that what you dial is exactly was is being supplied.
also this model most likely has cooling and that may be getting blocked check that any air intakes and filters are clean and clear to ensure good airflow if the device is getting hot it may cause the warning light to go on.
also ensure the lines are not shorting anywhere.
I hope this was helpful.
I replaced 4 each 2n3771 replaced lm 723 ic
Sounds like your filter capacitors are bad or weak and some 60hz ripple is getting through. If you have an oscilloscope, check the output to see if there is any ripple voltage.
Blown fuse everytime it powers on
yes right there is a short circuit in power supply if you are non technical then replace the power supply if you are technical then open the power supply and check the 4diodes of bridge if faulty replace it again check transistor attatched to heat sink if faulty repalce it
Was talking on cb and power supply went to beeping
THE BEEPS INDICATE THAT THE OVERVOLTAGE PROTECTION IS ACTIVATED,DO NOT HOOK UP ANY THING TO THAT POWER SUPPLY!!!OR THE FULL UNREGULATED VOLTAGE (20-30 VOLTS)WILL PASS FROM THE SHORTED REGULATOR TRANSISTORS TRHU YOUR GALAXY AND FRY IT.GET IT TESTED BY A PRO,USUALLY THE REPLACEMENT PARTS FOR POWER SUPPLY ARE DIRT CHEAP.
GOOD LUCK.
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