It looks like I will need a service manual for this radio. I cleaned the
switches and it does work better, but the PLL is still in need of
adjustment.
On the ranges below 5MHz, the system goes out of lock most of the time. Same
thing when you tune above "900" on the tuning dial. I would surmise that
there is probably a VCO coil that needs adjustment, and that right now, the
system is set at the edge of its capture range. I'll let you folks know what
the problem is once I finish with the repair.
Oh, I found out the reason that I couldn't find that final
screw...........the documentation indicated that this screw was at a point
in the chassis that was 3 inches higher than it really was!

Pete

"Pete KE9OA" wrote in message
...
Of course not! Especially when I see that somebody from Nigeria and
somebody else from Bosnia is using my "supposed" account.
I guess they gave up on sending those "Greetings, I am Doctor Blah Blah
Blah" things that offer to let me launder their 5 million dollar
inheritance, if I will only give them my bank account number, routing
number, etc.
It looks like I lost out on that one. I better move much faster next time
I get one of those e-mails. What a good deal! The quick and easy way to
file bankruptcy. But wait................there's more!

Pete

"BDK" wrote in message
...
In article ,
says...
I already checked that website.............it appears they only take
PayPal,
so that option is out. I get so many fraudelant e-mails from PayPal
informing me about suspicious activity on my account. I don't have a
PayPal
account, so I will let it rest there.
The only other source is A.G. Tannenbaum, but they don't seem to answer
their phones.
Any other sources? Also, I did see those screws for the front panel,
but I
need to remove the whole assembly so I can work on the synthesizer.
It seems that the LO output from the VFO droops at the high end of the
tuning range. When I tune up above "800" on the mechanical dial, the
synthesizer goes out of lock. This is on all bands, when they kind of
work.
I believe that this synthesizer is a dual-loop hybrid vernier
synthesizer. I
just need to find out where the sampling point for the VFO is.
I do have a long Phillips head screwdriver, so I will pull it apart
today.
Hopefully, the top of the unit separates from the bottom; that is all I
need
to pull off.
Thanks for the info!

Pete

"Unrevealed Source" wrote in message
...
1) You're on the wrong track taking the bottom screws out. Put them
back
in.
2) There are six screws holding the front panel on. You'll need a
long
Philips screwdriver, 8" or more shaft, preferably with magnetic tip to
pull
the screws out. Without the service manual, you might be able to
figure
out
which ones they are (two are inside the battery compartment lid, but
the
others are harder to get to.)
3) Buy the service manual for $19.95 at www.manualzone.com/. If you
own
this radio, you should have one.

This is a very service-hostile radio. If you do go through the
trouble to
take the front panel off, use that time to replace all of the bulbs.


"Pete KE9OA" wrote in message
...
How do I dissamble this unit? I was able to remove the back panel,
and I
have removed the screws from the bottom of the unit.
What I need to do is clean the frequency range switches. The PLL has
some
unlock problems, and the only way I can get at them is to take the
unit
out
of the case. Also, does anybody on this group have any kind of
service
info
that they can scan and e-mail to me? I would be glad to pay for the
effort.

Pete








LOL, you think Paypal is sending those emails?

BDK