Symptom:
When tuning the Main Encoder of the TS-450S/690S with bare hands you may encounter a "scratching" noise in the speaker if an antenna with a high SWR is used. If gloves are worn no problem is encountered. This occurs because the shaft of the encoder is not grounded.
Countermeasure:
Replace the Main Encoder with one that has a grounded shaft.
Parts required:
Qty Description Part No.
1 Main encoder W02-1836-05
2 Mounting screws N90-3006-46
Note: You must use the new mounting screws listed above with the replacement encoder.
Time required for this modification is 30 minutes or less.
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