Probably simple AM radio repair
Hi,
I acquired a Tandy Chronomatic 246 clock radio that is in great condition.
The only problem I have is AM reception below 900 kHz is almost non-
existant. I can turn up the volume to max and touch the internal antenna
to hear stations at low volume. The FM band works great.
I did replace a leaking 4.7u electrolytic cap that was nearest to the
adjustable yellow choke and tuning cap, but it made no difference. I also
adjusted the chokes a little to see if I could get better reception near
900 kHz, but no luck.
I'm suspecting there might be a broken wire in the internal AM antenna?
The wires in position on the antenna a
Red-Black-Blue White
If I touch the white wire, much better reception. But it is soldered to
the PCB securly.
Is there a way to test the antenna, like ohm it out? Any other ideas?
Thanks,
Dave
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