Memory battery for Dittle FSG71M

KM wrote:
Marc Ramsey wrote:
It does, however, require opening the case, which is of
doubtful legality for anyone but a certified radio shop.

Marc,When you say "doubtful legality" what do you mean?Have you found
any reference that sugests it is illegal to work on a radio?

No, I just can't imagine that the FAA and FCC bureaucracies would let
this one slip by...

Marc

I have followed you lead and purchased the 3.6v battery from the source. I
purchased the best 3.6v and have received, cost about $17 dollars with the
$6 handling for order less than $50 and the shipping.

The radio has numerous screws attaching the covers. Is the goal to only
remove the top cover?

Bob Fidler

"Marc Ramsey" wrote in message
et...
Bob Fidler wrote:
Ray, would you follow up and tell us all how easy it was to purchase the
battery, cost, and how difficult to replace.

It's been a while, but I believe my FSG71M has a 3.6V Tadiran 1/2AA
lithium battery with radial leads. Cost about $5 at www.digikey.com. It
wouldn't be a difficult repair, particularly if you don't mind how it
looks (clip the leads at the old battery, solder the leads of new battery
to the old ones, doing it right would likely require further disassembly).
It does, however, require opening the case, which is of doubtful legality
for anyone but a certified radio shop.

Strangely enough, the LCD can be replaced without opening the case...

Marc

Bob Fidler wrote:
The radio has numerous screws attaching the covers. Is the goal to only
remove the top cover?

The battery is on top of the top PCB, so it is accessible with the top
cover removed...

Marc

I've replaced backup batteries in both Dittel FSG71M and Becker
AR3201. Both are easy jobs if you know how to use a soldering pencil,
solder, and solder wick or desoldering tool in close proximity to parts
you don't want to remove or replace. You also need some small
screwdrivers. Using tiny amounts of nail polish on the screw heads when
you replace them keeps the screws in place. Don't get caught stealing
"my favorite" nail polish.
By the way, Becker repairs in the US are now only done at Becker USA
in Florida, but batteries can still be purchased elsewhere. I got one
from Erie.
Marc has a point (legality) if your aircraft is registered STD.
If you're not comfortable removing/replacing parts on a PC board,
sending the radio to the shop and getting it calibrated at the same
time isn't a bad idea.
Jim

I have removed the cover and found the existing battery. However the access
is rather feable on the negative side of the battery. The negative wire
disappears in the circuit board at about an 1/8" away from the battery
with no idea what the othe side looks like. If I was successful in cutting
the lead for the negative battery side, there would be only a very small
segment of wire to solder. I tried to remove that circuit board to see the
other side( where the negative battery lead disappears into) by removing the
screws which seam to hold that circuit board in place, and have found the
circuit board is still quite secure in its place. Therefore, without further
specific info about how to remove that board, I am not willing to continue
on risk breaking something.


Bob Fidler


"Marc Ramsey" wrote in message
. net...
Bob Fidler wrote:
The radio has numerous screws attaching the covers. Is the goal to only
remove the top cover?

The battery is on top of the top PCB, so it is accessible with the top
cover removed...

Marc