Re: AWC708C Main Board Voltage Regulators Fried, Need To Know What They Are...
Originally Posted by
PatrickMM
"Did you stop to wonder why both chips or modules are blown?"
Yes, I know why they are blown. My power supply had a power surge and sent over 45 volts to the main board.
It's only setup to handle 24 volts.
As for the part number, I already know the "main" part number, but there are several different types of these
parts. There are fixed voltage and there is also adjustable voltage. Without knowing what these are, I can't
just order a couple of "LM2596S" regulators, I need to know if they are 5 volt fixed, 12 volt fixed, adjustable
voltage or whatever else.
Thanks,
Patrick
Usually when it says adjustable that means the adjustment to make it 12, 24 or whatever is in the selection of proper sized resistors in the circuit feeding back to the LM regulators. Are both the same and can you trace back on the CB to see what they have for resistors feeding the Input line? If any?
Or trace back the output to see what buss it is feeding.
PDF Data sheet http://www.ti.com/lit/ds/symlink/lm2596.pdf
Retired Master Electrician, HVAC/R Commercial. FLA Saturn 2 4x4 CNC Router Mach4 Kimber 1911 45ACP