[Kenwood] TS 140S rx audio repaired.

Maurie vk3cwb at yahoo.com.au
Sun Jul 1 02:35:55 EDT 2007


For those that have a TS 140s..you may want to note the following...
My 140s had distorted audio on Rx the rest was Ok...
checking the schematic it seemed the issues may have been around Q56 and
IC 4 which are responsible for audio amplification....
Checking the signal board closely I found an electrolytic --..C 220
(22ouf; 10V) which had oozed some oil.... not wanting to remove the whole
signal board.I snipped away at the electro until its tags only were
left... so as to solder the new electro with out removal of the
board...bench tested another new electro via clip leads..and the audio is
now brilliant.....
So in this case the culprit was C220 on the signal board!
Thanks to Alex 4Z5KS and others that responded! MUCH APPRECIATED!
See you on air..
Maurie. VK3CWB.
 "True listening comes with a very......... very.....very... long ...wire!"
 VK7RC. (1936)
 "For me, ham radio is all about having good friends like KB5ION, AA2NN and W5RH! " (VK3CWB, Dec- 2006.)
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