[DSP-10] Problems With checkout
[email protected]
[email protected]
Fri, 26 Apr 2002 13:25:35 EDT
I am new to the list and I have just put power to my DSP-10. Everything is
fine except the voltage reading at R110. Instead of .23 volts I get about
2.0 volts. I have changed Q101 (twice) and U105 (shorted it during testing).
The voltage at the output of U105 is low also - about 2.5 volts - but when I
remove L103 the voltage is normal. I have used two different meters and the
voltage drop across R111 confirms that I do have 20 ma of drain current in
Q101. I do have 123 Mhz (with the slug of L102 removed) at the output of
U106 but I have not measured the level yet. Is 2.3 ma really the proper
amount of current drain for Q101?
Thanks for any help.
Jess - W4MVB
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