Kenwood TS-140S / TS-680S notes
(TBD)
Overview
(TBD)
Common Issues
Dry Joints
(TBD)
Finals
(TBD)
Fan control voltage
- There is a mod to make the fan come on sooner; but the fan control
is a small board on the finals board! So it’s quite a pain to get
to and modify.
- Control Unit L54 (39.6MHz VCO) - Marked as L34 / 406D (or 4060) / 830 (or 83C) ; 0t (skip first), 4t, 3t, 3t, 3t ; TBD coil form and ferrite material; 0.9 -> 1.6uH
- Control Unit L3 - Marked as 3206 / 6615 / 88222 ;
- Control Unit L54 - Marked as 3422 / 4705 / 848E ;
PDFs