Louie,
I had a similar problem with my R4-A. The solution to my problem was
replacement of a defective S-meter sensitivity calibration trimpot
located on one of the little circuit boards under the chassis. As I
recall, there are two such trimpots on two different circuit boards,
so make sure you have the right one. These are the cheap little pots
with no covers where you can see the actual arc of resistive material
along the circumference of the pot. An ohmmeter check of the pot
should tell weather or not it is the culprit.
Good luck,
KB8BKU, Darryl in Dayton
On Aug 25, 2010, at 7:13 AM, Louie Hanson Jr. wrote:
I have a Drake R4B receiver that the S meter does not function
properly. Alignment or adjustment of pot on side does not seem to
help. barely moves with very strong signals. any ideas where to start?
Louie WBØRMO
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