Ed,
8 volts at U6 pin 1 can happen and may or not be a problem. More info is needed.
Did you do the PLL Range Test? Was the high frequency, low frequency and range within bounds? If so, the voltage at U6 pin 1 should be OK.
Do you mean L30 and T5 rather than L3?
What is the voltage at U6 pin 4? If it is far removed from 4 volts, look for a solder bridge on the thermistor board.
What is the voltage at R30? (Under what conditions - which band(s)?
Have you checked the winding of T5? It should look just like the diagram in the manual - 16 red turns and 5 green turns (count as the wire passes through the center of the core only) and the red turns should be spread over 80 to 85% of the core. Are the wires of T5 properly tinned and well soldered?
Does the R30 voltage move at all when adjusting L30?
What frequency do you find at TP1 when you tune to 7000 kHz? It should be quite near 11915 kHz.
73,
Don W3FPR
> -----Original Message-----
>
> Hi,
> Ran into problem with L3 and T5 can't hit 6 volts at R30. Was
> suggested that I try measuring voltages and I found on RF brd. U1 pin
> 1 @ 8 volts instead of 6 I'm not a tech so I'm not sure how to track
> what might be causing this high voltage condition? Any ideas would be
> greatly apprecited.
> 73 Ed, N2KVZ
>
_______________________________________________
Elecraft mailing list
Post to:
[hidden email]
You must be a subscriber to post to the list.
Subscriber Info (Addr. Change, sub, unsub etc.):
http://mailman.qth.net/mailman/listinfo/elecraft
Help:
http://mailman.qth.net/subscribers.htmElecraft web page:
http://www.elecraft.com
Locked
