NEC FE990-BK monitor

NEC FE990‑BK is an 18‑inch flat CRT monitor featuring ClearFlat shadow mask and On‑Screen Manager controls. Common failure modes in this class include high‑voltage power supply capacitor degradation, CRT tube discharge or phosphor burn‑in, and backlight (if any) fan or ballast issues; the monitor’s 15‑pin mini D‑SUB connector can also suffer from loose contacts. First‑check diagnostics: verify mains voltage and PSU output (especially the +12 kV high‑voltage rail), inspect the CRT for visible cracks or discharge, and test the power supply capacitors with a multimeter/ESD tester; finally confirm that the D‑SUB connector pins are clean and securely seated.[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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