Some users of the TS-930S have reported a slight change in the CW pitch tone when the MONI switch is turned ON and OFF.
This may be corrected by changing the following components:
On the Signal unit (X57-1000-XX) change R826 from a 1 K ohm resistor to a 10 K ohm resistor and remove C601, a .022uF capacitor from the foil side of the circuit board.
Notes: This change is applicable to units before serial number 3070221 only.
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