On Tue, 13 Jan 2009 02:40:02 -0000, "Arfa Daily"
wrote:
Turns out that under the leatherette is a layer of some fibrous
cardboardy-type material, which is a good thermal insulator, so no heat gets
through to melt the glue ... Total thickness of material, probably about
1.5mm !
Nope. My guess(tm) is the cardboard is to prevent resonant acoustic
vibration of the back panel. Also, some posssible microphonics, but
that's unlikely with a digital radio. The double sided tape is
possibly part of fixing the same problem. When you put it together,
run an audio sweep with your hypothetical DAB generator to check if
there are any mechanical resonances.
Now call me picky if you like, but I consider this to be taking the **** by
the manufacturer. By using this sort of fixing method, they are clearly
defining this expensive radio, as fundamentally non-repairable.
Yep. However, I don't think that was the original intention. My
guess(tm) is that it was a side effect of the acoustic damping
prevention efforts.
I will go over all the joints in the power supply section
anyway, and maybe replace the little tactile switch that controls the
electronic power switching circuitry.
Good idea. My guess(tm) is a broken conductor hidden inside an
insulated wire near the power connector, or on-off section. Chop the
cable ties and try pulling on each wire to see if any of them come
apart or stretch.
I think that the leatherette is going to be difficult to glue back down as
neatly as it was originally,
Replace the 4 screws in the corners with the equivalent thread and
length, but using a decorative screw head and decorative washer. In
other words, compress the cardboard and leatherette under the
crumbling cardboard and covering.
Thanks for all the comments and suggestions. Got there in the end ... :-)
Congrats. Great idea (PeterD) using a magnet to find the screw heads.
Incidentally, I found parts and pieces of the old genusdigital.com web
pile under archive.org, but there was no detail, support, manuals,
docs, or even decent photos.
--
Jeff Liebermann
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060
http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558