20 Most Recent Pyramid (PS36KX) 600-Watt Power Supply Questions & Answers

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

Will the unit power up without the cb radio? I would suggest a short somewhere in the system if the protection light continues to shine bright.

Needs to get a Depot service done for the Electronic board. Could be an issue with Capacitor or IC. Good luck.

Check the LM723 Regulator IC...it's 14 pins and regulates and adjusts the reference to the pass transistors http://www.eserviceinfo.com/downloadsm/21059/Pyramid_PS-36KX.html

This is alink to the p s 3 6 which is very similar to the PS-35

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.

26.46 lbs

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.

Might want to read this

http://www.eham.net/reviews/detail/3442

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

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.