Chris -
First step is to determine if the problem is the receiver or the counter.
Are you able to tune in a signal on the receiver?
4.67V is too low on the 5V line. It should be less than 0.2V more or
less than 5.00 V. Possibly leaky electrolytic caps.
73, Garey - K4OAH
Glen Allen, VA
Drake 2-B, 4-B, C-Line& TR-4/C Service Supplement CDs
<www.k4oah.com>
Chris Hughes wrote:
Hi all
Before I start pulling things apart ..my TR7 counter display
has locked up accept for the last 2 numbers which are rapidly changing
and not responding to any controls , the 10 volt line is spot on but I
can only get 4.67 volts on th 5 volt line ? this radio was locked up
in storage for 20 years but its been working well up untill a couple
of months ago any idears ....Chris ZL2UKT
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