MV1A

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Mute Board

On MV4FS YM2610

  1. Datalines D0-D7 busy and healty on 4slot
  2. RAD0-RAD7 healthy static about 113kHz signals
  3. OP0 Clearly shows activity on sound
  4. SH1 and SH2 steady 55.56kHz signals
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