Grundig satellit 650 pro fault - UK Vintage Radio Repair and Restoration Discussion Forum

Feynman · 18th Sep 2023, 4:46 pm

My Satellit was working fine on 28 June….switch it on today and no stations plus the volume was very low from the speaker. The LCD display was a bit erratic for a second before looking normal. An hour later and now it does not switch on.
I was planning to sell it but maybe I can’t till I get it repaired. It is not something I can do myself….any advice / help?

MotorBikeLes · 18th Sep 2023, 7:36 pm

I have had a Sat 600 for 35+ years (essentially the same radio) and have had the low volume problem on a cold morning with a fully charged battery. Battery getting old, so not regulating battery voltage when charged.
Of course you are probably running it on mains, so not relevant.
There is a transistor controlling the mute circuit, and I seem to recall a resistor had a value change in a technical bulletin.
The situation with no tuning and no stations whatsoever has been related to surface contamination on the PCB where the on/off/snooze switch is soldered onto the motherboard. I had a variation on this theme with a second set I bought from a member here maybe 7 years ago.
Do a search. I reported on that fault within the last 12 months I think in this section. It MAY have been in the "Modern" section which will not be visible to you until you have made at leat 10 posts.
A Moderator may find it and give you access, not sure.
I have also written about converting the optional Dryfit Accu to lithium ion, but not appropriate at this stage for you.
Les.

Feynman · 21st Sep 2023, 9:28 am

Thank you for the information. I suspect I will need to employ someone to repair this radio as I am not competent with this level of repair.

18th Sep 2023, 4:46 pm	#1
Feynman Diode Join Date: Sep 2023 Location: Dunfermline, Fife, Scotland, UK. Posts: 2	Grundig satellit 650 pro fault My Satellit was working fine on 28 June….switch it on today and no stations plus the volume was very low from the speaker. The LCD display was a bit erratic for a second before looking normal. An hour later and now it does not switch on. I was planning to sell it but maybe I can’t till I get it repaired. It is not something I can do myself….any advice / help?

18th Sep 2023, 7:36 pm	#2
MotorBikeLes Nonode Join Date: Dec 2012 Location: Kirk Michael, Isle of Man Posts: 2,295	Re: Grundig satellit 650 pro fault I have had a Sat 600 for 35+ years (essentially the same radio) and have had the low volume problem on a cold morning with a fully charged battery. Battery getting old, so not regulating battery voltage when charged. Of course you are probably running it on mains, so not relevant. There is a transistor controlling the mute circuit, and I seem to recall a resistor had a value change in a technical bulletin. The situation with no tuning and no stations whatsoever has been related to surface contamination on the PCB where the on/off/snooze switch is soldered onto the motherboard. I had a variation on this theme with a second set I bought from a member here maybe 7 years ago. Do a search. I reported on that fault within the last 12 months I think in this section. It MAY have been in the "Modern" section which will not be visible to you until you have made at leat 10 posts. A Moderator may find it and give you access, not sure. I have also written about converting the optional Dryfit Accu to lithium ion, but not appropriate at this stage for you. Les.

21st Sep 2023, 9:28 am	#3
Feynman Diode Join Date: Sep 2023 Location: Dunfermline, Fife, Scotland, UK. Posts: 2	Re: Grundig satellit 650 pro fault Thank you for the information. I suspect I will need to employ someone to repair this radio as I am not competent with this level of repair.