Samlex sec 1223 schematics [434 kb]. Apparently, the sec1223 has a bad reputation for being noisy and various users added an rfi filter on the output. Got the schematic and made repairs, same issue on both units:
Information on Samlex Desktop Switching Power Supplies
Or 240 vac, 50 hz to regulated 13.8 vdc based on pulse width modulation ( pwm ).
Switch Mode Dc Power Supplies.
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Web samlex sec1223 power supply schematic. 13.8 vdc, 23 amps see more specifications estimated. I also saw a note that samlex.
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Please select your desired model below. Web maybe it's failed. Replaced the bad capacitors, the two transistors, and the fuse.
Web Web 6 | Samlex America Inc.
