Symptom: When tuning the Main Encoder of the TS450S/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 gounded 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.