Success!!
Well boys and girls, I replaced the 3N211 mosfet on the HF board
with a $6 Amazon NTE454 and the little beast roared to life!
Next project is to clean the relay, as it's exhibiting a
slightly high resistance compared to rcvr RCA jack. This
continues to be a fun and learning experience and my thanks to
all of you who chimed in. The Facebook, Yootoob and email
reflector resources made this saga a mostly enjoyable one!
?Be well. de kn7sfz
On 2/3/2023 11:59 AM, Richard kn7sfz
via groups.io wrote:
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Thanks Roger, just grabbed it!
I have a 46 inch flat panel monitor, which makes it very easy
for me to zoom in and out and navigate the large jpeg image,
which I do indeed prefer to the pdf version (I have Adobe
reader).
I don't believe I'll need to print it out, as that is a little
more difficult with these old eyes.? It reminds me of a folded
schematic I have that goes with one of my old Galaxy V
transceivers.? It's about 2 1/2' tall and 4' wide, so I had to
hang it in front of me and it sure took up a lot of real estate!
??
The saga of my hard of hearing EX model continues.? I checked
out the bulb fuse and it was fine.? I then removed the HF board,
cleaned the edge connector and and RF mosfet? (3N211) socket and
still weak receive.? Then, following a well made YouTube video,
checked the? mosfet with a DMM and it seemed to respond well, so
I guess I won't need to replace it.? I suppose now it's time to
jump in with both feet and follow the signal path after I read
up a little more on how it's processed.
For anyone reading this who'd like to chime in, here's where I
am so far.? with a small length of wire in the antenna socket, I
can barely hear my signal generator on 7.100 with no S meter
movement.? When I connect the sig gen directly to the wire, it
gets much louder and the S meter moves up about halfway.? The
VFO seems to work fine and is accurate, as I can tune back and
forth.? However, turning the preselector has zero effect in the
volume or meter movement, so something is amiss there.? I'll
probably post this on the Facebook group as well.? I know I'm
not the first one to go down this road...haha!
Thanks Roger and everyone,
Richard kn7sfz
On 2/3/2023 9:56 AM, Roger VE7LB
wrote:
Hi Richard, I suppose that you don't have a good pdf reader as
the FT-101E_Late_Schematic.pdf in the files section is high res
11 x 30 inches. I just added a jpeg version of the same file in
the same folder. You could put the pdf version on a usb stick
and take it to one of the printers (Kinkos?) and get a full 11 x
30 inch printed.
73
Roger VE7LB group owner
