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Ham Radio CD-ROM (Emerald Software) (1995).ISO
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ts440s.28
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1990-09-10
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1KB
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19 lines
TS440S.28
TS-440s update
If you have been having some signal loss on either receive or transmit, you
might check the J-15 connector on the IF board(X60-1300-00). I am not quite
sure just what this circuit is doing (feedback or signal), but have been
having some troubles with loss of full signal output, and a noticable 20+db
signal loss on receive. Generally a quick slapp of the case restored the unit
to normal (I thought) use, but within a few day's it was back to having
trouble. Well it only took me 3 months to decide to find the culprit(s), and
decided it had to be either a bad connection, or RING-OUT. After taking the
case apart as was actually going to replace a bulb, I noticed that the signal
strength was going up and down as I worked on the rig (never work on a rig with
power on, unless doing alignments, or testing, never to replace a bulb!
hihi) Anyway I got to moving some cables around and noticed that under
certain circumstances that the signal would go from very weak to very strong.
CONTINUED IN FILE TS440S.29