[ICOM] Repairing a IC-471H
John
k4ag at att.net
Tue Oct 12 23:00:02 EDT 2004
Well my trusty 471H has stopped putting out RF. It appears to put out a
VERY small amout, too small for a Bird to register, as I can hear it on
a hand held on the output frequency.
There is voltage in all the right places in the PA module except the
output volts on IC 1, which seems to be a power module.
Does anyone know what the input/output power levels of this module is ?
I guess it has to be about 10-20watts out to drive the final. Also what
is HV and PAV on J1 in the PA. Could a failure in the power control
circuit be the cultprit? How can I test it
I'd like to try and save it
--
John Mc Hugh, K4AG
Coordinator for Amateur Radio
National Hurricane Center, WX4NHC
Home page:- http://www.wx4nhc.org
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