Fuji Electric FSD-15SN-Z power supply

The Fuji Electric FSD‑15SN‑Z is a compact industrial DC power supply (DSR Compact Drive) rated for 5 A output and 200/220 VAC input, used to feed motor drives or control boards in factory automation. Common failure points on this model include the main rectifier bridge and smoothing capacitors, which often burn out under over‑voltage or thermal stress; secondary issues can arise from the internal MOSFETs and protection circuitry when subjected to surge spikes. First‑check diagnostics: verify input voltage and polarity with a multimeter, inspect the output for correct DC voltage and ripple, then visually examine the board for cracked solder joints, bulging capacitors or burnt components before proceeding to component replacement or board reflow.[oss-gpt-20b]

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We specialize in the repair and refurbishment of high-end industrial control electronics and power systems like this unit.

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