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September 30th 03, 10:50 PM

(Geoffrey S. Mendelson) ha scritto:

In article , Bob M. wrote:

The rest of your symptoms are very strange. I can offer no help at all.
Obviously something is wrong, but I can't even begin to tell you what to
look for.

They are very common. Kenwood potted the main PLL in a rubber compound
to isolate from thermal changes and mechanical shock. In plain English to
slow down the effect of temperature changes and prevent frequency jumping
if you tapped the radio, or when mobile went over a bump.

The problem is that over the years the rubber compound started to absorb
water from the air. If you were in a totaly dry enviornment this would
never happen. I have an R5000 (same problem). When I lived in the U.S. I
kept the radio in a basement that was so wet everything would rot in a
few days, so we kept a dehumidifier running and the basement was very
dry. The radio never had a problem.

After sitting in a box and then a freight container over the ocean, it
picked up enough moisture to fail in about 3 months.

The fix is simple in theory and is documented on the Kenwood web site.
You remove the shield from the main PLL, remove the rubber compound,
replace any parts damaged due to corrosion and readjust the PLL.

An experienced technician, such as Cliff at AAVID, can do it for
about $100 for parts and labor. Unless you have the correct tools
and equipment, I'm not sure you can do it, but many people have.

Geoff.

--
Geoffrey S. Mendelson 972-54-608-069
Icq/AIM Uin: 2661079 MSN IM: (Not for email)
Carp are bottom feeders, koi are too, and not surprisingly are ferrets.

Well, others already said that, but I have looked pratically
every board in the TS-450 and found no rubber compunds.
Indeed, now I know buch better my rig and I was amazed on how
well the parts are put and fixed and how it is easy to unmount
them.

What I found up to know is in another message.

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