Sansui Amp — Parts

A critical safety item. Many vintage Sansui models (like the AU-317) use resistors designed to "open" under fault conditions; these often drift in value over time [15] and should be replaced with modern flameproof versions.

Original single-turn pots for setting bias and DC offset can be touchy. Replacing them with multi-turn trimmers [14] makes fine-tuning much safer and easier. Maintenance & Cleaning sansui amp parts

Though registration is often limited, this is the gold standard for downloading service manuals [9] that contain full parts lists. A critical safety item

Scratchy sound is often just dirt. Use DeoxIT D5 [16] for metal switches and DeoxIT F5 (FaderLube) [16] for carbon-track volume and tone knobs. Use DeoxIT D5 [16] for metal switches and

The most common restoration task. Reliable choices for audio paths include Nichicon FG/KG [7] and Elna Silmic II [7]. For power supplies, Panasonic FC/FM [2] or Nichicon HE [2] are preferred for their durability.

When servicing output transistors, always clean the old, dried-out grease and apply new thermal compound [15] to ensure proper cooling. Where to Find Schematics & Lists