[Elecraft] K2 VCO Alignment only 0.02V @ R30

JeremyJones jjones9527 at gmail.com
Sat Feb 2 19:56:18 EST 2013


C62 is correct, and the path is intact.  Reflowed the solder on all
connections just to be sure.  
U4 readings are as follows
Pin1 = 0.111
Pin2 = 0.339
Pin3 = 0.006
Pin4 = 2.363
Pin5 = 4.99
Pin6 = 4.99
Pin7 = 4.99
Pin8 = 4.99
Pin9 = 0.001
Pin10 = 0.001
Pin11 = 0.000
Pin12 = 0.000
Pin13 = 5.029
Pin14 = 5.029
Pin15 = 5.029
Pin16 = 5.029

Pins 1, 2, 7, 8, 12, and 13 are not within the specs in the manual.  Is this
a bad U4, or should I start tracing backwards?




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