Topics

#u3s #problem #u3s #problem

Jeff Brennan
 

Need to see if there is a chart showing what power levels I should see at the various pins and components on the U3S.  Just built another and have the dreaded one line of blocks show up.  Already checked the usual suspects - power, crystal, soldering (visually checked so far)...Would like to troubleshoot further.  thanks - Jeff, AC7IJ

Alan G4ZFQ
 

soldering (visually checked so far)...Would
like to troubleshoot further.  thanks -
Jeff,

http://www.qrp-labs.com/ultimate3/u3trouble.html

gives the single row tests.
If nothing is found I'd suggest the soldering is checked with a hot iron.

73 Alan G4ZFQ