Someone else suggested moving the pot. Hit it with some cleaner and work it back and forth. Then get a replacement ordered from Mouser, or wherever.
Chuck WB2EDV ----- Original Message ----- From: Vernon Densler To: [email protected] Sent: Tuesday, October 06, 2009 3:12 PM Subject: RE: [Repeater-Builder] Strange Problem It's still a little early to claim victory but the audio has been solid for about an hour now. What changed? Moved the modulation pot a bit. I will update again later today and we will see if it says solid. Thanks, Vern KI4ONW From: [email protected] [mailto:[email protected]] On Behalf Of DCFluX Sent: Tuesday, October 06, 2009 1:17 PM To: [email protected] Subject: Re: [Repeater-Builder] Strange Problem Wouldn't C104 need to be removed as well? On Tue, Oct 6, 2009 at 10:08 AM, Vernon Densler <[email protected]> wrote: When I cut R103 I lost all of the audio. The voltage did go down on the audio line though. From: [email protected] [mailto:[email protected]] On Behalf Of Chuck Kelsey Sent: Tuesday, October 06, 2009 12:00 PM To: [email protected] Subject: Re: [Repeater-Builder] Strange Problem On the exciter, remove R103 which connects to pin 11 on the audio chip. http://www.repeater-builder.com/ge/lbi-library/lbi-4560b.pdf Chuck WB2EDV ----- Original Message ----- From: Vernon Densler To: [email protected] Sent: Tuesday, October 06, 2009 11:28 AM Subject: RE: [Repeater-Builder] Strange Problem Where might I find that bias line? Thanks, Vern KI4ONW From: [email protected] [mailto:[email protected]] On Behalf Of Chuck Kelsey Sent: Tuesday, October 06, 2009 11:09 AM To: [email protected] Subject: Re: [Repeater-Builder] Strange Problem If you are not using a local microphone (I don't) my solution is to simply remove the bias to mic high and forget messing with a cap. Chuck WB2EDV
