[R-390] Smoke got out

[Stan Gammons]

Do you have the Y2K manual?  http://www.r-390a.net/faq-refs.htm#Y2K 
Chapter 5 is the chapter on troubleshooting and it has voltage and 
resistance diagrams.

73

Stan
KM4HQE


On 08/19/2018 04:33 PM, dog wrote:
> I've replaced the RF section 6.3VAC wiring, including the 10uH choke 
> on V205. I never did figure out what happened. I used an old 
> transformer's 6.3 winding to feed the Fluke AC Amp meter, to a 3A fuse 
> and plugged it onto the J208-B and tested all the tubes I have 
> individually in their respective sockets. Nothing strange found. Amps 
> on the Fluke correspond to the correct draw for each tube with a short 
> warm up. Both sets of tubes.
>
> Also replaced the 6.3V harness wire from the IF connector to the RF 
> section connector and re-tied the lacing which was burned. At this 
> point I'm wondering since I pulled a lot of components off around V205 
> what I should check for before I sock the thing with HV and all. I'm 
> sure it's all wired correctly, everything fit back like I can't 
> remember as usual. I hate to pull the other one out just to compare. I 
> used the schematic to find where each component went, I only pulled 
> off one end of each component. I just want to be careful not to burn 
> up something else. Any easy resistance checks I can make? I'm ready to 
> put the RF section back in mechanically.
>
> Dave N3DT
>
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