Dittel radio servicing

Any recommendations for getting a Dittel FSG 71M serviced? Mine has a sticker on the side that reads "Replace Memory Battery 2005". The radio is working perfectly, but I want to get that battery out before it starts leaking.

I have found owners manuals and schematics on the web, but nothing about repair services.

Thanks,
...david

2 choices
Anton Lang Flugfunk Services in Germany. He us the authorized service center for them and it will come back like new
Or, do it yourself. It is simple soldering. Remove the top part of the case and you have access to the battery. It is a 1/2aa 3,6v Lithium battery. Cut and bend the ends to suit and solder it in.

Good luck either way

Thank you. Your post provided the encouragement needed for self-repair. Ordered the battery from Digikey sometime back and finally installed it last weekend. Easy job. Good result.

Thanks,
...david


On Sunday, November 19, 2017 at 2:01:40 AM UTC-5, Ross wrote:
Or, do it yourself. It is simple soldering. Remove the top part of the case and you have access to the battery. It is a 1/2aa 3,6v Lithium battery. Cut and bend the ends to suit and solder it in.

Good luck either way

On Sunday, November 19, 2017 at 2:01:40 AM UTC-5, Ross wrote:
2 choices
Anton Lang Flugfunk Services in Germany. He us the authorized service center for them and it will come back like new
Or, do it yourself. It is simple soldering. Remove the top part of the case and you have access to the battery. It is a 1/2aa 3,6v Lithium battery. Cut and bend the ends to suit and solder it in.

Good luck either way

Hi Ross,

could you please describe what that battery looks like? I opened up the both covers and there is nothing there I would readily identify as a battery. If I sent you a photo, could you point it out to me or could you send me a Digikey link that battery?
Thanks,

Uli
'AS'

Uli,

You are looking for a 3,6v Litium battery.

https://www.ebay.de/itm/Saft-LS-1450...AOSwzb9ZpXm 4

Remove the top cover and you will see it at the back, both ends bent down and soldered to the board, and the sides bonded with silicon

On Tuesday, February 27, 2018 at 8:31:24 AM UTC-5, Ross wrote:
Uli,

You are looking for a 3,6v Litium battery.

https://www.ebay.de/itm/Saft-LS-1450...AOSwzb9ZpXm 4

Remove the top cover and you will see it at the back, both ends bent down and soldered to the board, and the sides bonded with silicon

Perfect - thanks, Ross! I saw that component but being more of a 'Nuts & Bolts' guy, thought this is a big resistor or capacitor. :-)

Uli
'AS'

On Tuesday, February 27, 2018 at 7:59:16 AM UTC-5, AS wrote:
On Sunday, November 19, 2017 at 2:01:40 AM UTC-5, Ross wrote:
2 choices
Anton Lang Flugfunk Services in Germany. He us the authorized service center for them and it will come back like new
Or, do it yourself. It is simple soldering. Remove the top part of the case and you have access to the battery. It is a 1/2aa 3,6v Lithium battery. Cut and bend the ends to suit and solder it in.

Good luck either way

Hi Ross,

could you please describe what that battery looks like? I opened up the both covers and there is nothing there I would readily identify as a battery. If I sent you a photo, could you point it out to me or could you send me a Digikey link that battery?
Thanks,

Uli
'AS'

https://www.mouser.com/ProductDetail/667-TL5902-PBP

http://www.tadiranbat.com/

You want a 1/2 AA battery. Lithium thionyl chloride batteries last for decades in this application (extremely low power draw for memory backup).

I shopped at Digikey, but forgot that I ended up ordering from Mouser. They have several to choose from. I paid a couple bucks more for the higher temperature rating, just in case my soldering took longer than recommended.

...david

On Tuesday, February 27, 2018 at 11:21:13 PM UTC-5, David Sherrill wrote:
On Tuesday, February 27, 2018 at 7:59:16 AM UTC-5, AS wrote:
On Sunday, November 19, 2017 at 2:01:40 AM UTC-5, Ross wrote:
2 choices
Anton Lang Flugfunk Services in Germany. He us the authorized service center for them and it will come back like new
Or, do it yourself. It is simple soldering. Remove the top part of the case and you have access to the battery. It is a 1/2aa 3,6v Lithium battery. Cut and bend the ends to suit and solder it in.

Good luck either way

Hi Ross,

could you please describe what that battery looks like? I opened up the both covers and there is nothing there I would readily identify as a battery. If I sent you a photo, could you point it out to me or could you send me a Digikey link that battery?
Thanks,

Uli
'AS'

https://www.mouser.com/ProductDetail/667-TL5902-PBP

http://www.tadiranbat.com/

You want a 1/2 AA battery. Lithium thionyl chloride batteries last for decades in this application (extremely low power draw for memory backup).

I shopped at Digikey, but forgot that I ended up ordering from Mouser. They have several to choose from. I paid a couple bucks more for the higher temperature rating, just in case my soldering took longer than recommended.

...david

Thanks, David! After Ross' description, I found the battery and measured its voltage. It still reads 3.6V. The radio just arrived from Belgium, so it hasn't been in the glider, yet. If it doesn't hold the memory, I know what to do now. :-)
Uli
'AS'

I've also got a 71M but with a slightly different problem. The LCD display is getting bad. Readable but only just. Any suggestions on where to obtain the part or someone that can install new LCD. I've tried Peninsula Avionics and they were not able to help. I've also tried to contact flugfunk-lang.de and have had no response.

David Martin
BV

If your are in the U.S You may also try Peninsula Avionics:

14229 SW 127 Street
Miami, FL 33186
305-238-6550

I'm pretty that's who worked on my radio a few years ago. But be ready for sticker shock. My Dittel wouldn't turn on. I sent it out and was told it was the internal battery, which didn't make much sense to me. But what do I know. Well over $300 later it had a new battery, bench tested and checked out and still didn't work. It turned out to be a loose wire on the fuse holder.