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ha12002

  1. PE9ZZ

    IC chip HA12002 "stuck in protect" fix for Sansui AU-D11

    This is actually not exclusively Sansui related nor is the cause stuck in protect. The issue was that at powerup the Sansui AU-D11 amp on my workbench took ages (OK, several minutes) to switch on its output relays even though the amp's outputs were at zero. The cause was the voltage on C4 not...
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