10. Adjusting RF audio for Europe
> My SVS260 is (obviously) a British Receiver and as such there is a
> minor incompatibility with the German TV system. As you are probably
> aware, in Germany the audio carrier is offset from the vision
> carrier by 5.5MHz as opposed to 6MHz in the UK. While this does not
> affect the SCART output, it would be advantgeous to have the
> standard UHF connection working as well.
> This necessitates a change to the RF Modulator, but I have had
> little success in locating one. Ideally, I would like to locate a
> type I/G switchable modulator, but would settle for a G type. Do you
> have any idea where I might be able to get hold of one?
> Thank you in advance for your attention. I hope that I have not
> wasted too much of your valuable time.
> Yours Sincerely
> Robert in Wiesbaden, Germany...
There is an adjuster in the RF modulator for this. However it's a tiny black fragile ferrite dust screw core. You can access it without completely dismantling, as follows:
Look at the rear. If it's the same as the scrap one I have here, the RF modulator will have a turquoise plastic adjuster slot for setting the UHF output channel.
From the exact centre of the turquoise adjuster, measure 18mm vertically downwards towards the test switch and make a mark. From this mark measure 5mm to the right and make a mark. This is the exact location to drill a hole - or melt one with a soldering iron.
Make the hole at least 6mm diameter for ease of access. The adjuster is recessed about 8mm deep inside the RF modulator - about 10mm with the thickness of the plastic rear cover. You need a jeweller's screwdriver with a flat blade of 1mm.
With everything connected, try unscrewing the adjuster by a turn or two. Do it gently or it WILL break
> Dear Martin,
> Apologies for not getting back to you sooner, pressure of work and
> so on has meant that until this weekend, I have not got around to
> making the adjustments to my decoder. Finally, 1 have managed to
> find the time and 1 am very happy to say that your advice was
> perfect. Everything is working marvellously.
> Thanks very much for your prompt and helpful service.