Modifications to make audio work on vcr in south africa

[Bart Bervoets]

I posted this before but i need some more specific advice.
What do i need to do to make a vcr from the netherlands work in
south africa?
The picture is fine, there´s no sound but only a hiss.
Any component change or adjustments?
Thanks in advance.

Bart Bervoets

 

[Bert]

Hello Bart
You must remember that the Vision to sound carrier in Holland is 5.5 MHz and
here in SA it is 6.0 MHz.
So you have to change the internal sound carrier to 6.0 MHz, most likely
ceramic filters.
The other part is the Modulator which has to be changed to 6.0 MHz.
I have done quite a few, some are easy, some are not.
Greetings
Bert Vermeulen
Kraaifontein
Cape Province.

 

[Bill Jeffrey]

I posted this before but i need some more specific advice.
What do i need to do to make a vcr from the netherlands work in
south africa?
The picture is fine, there´s no sound but only a hiss.
Any component change or adjustments?
Thanks in advance.

Bart Bervoets

The difference seems to be that the two countries use slightly different
versions of PAL. Netherlands uses PAL(B) and South Africa uses PAL(I).
The video part of the signal is pretty much the same, but the audio
carrier is in a different part of the channel. PAL(B) has the audio
carrier 5.5 MHz from the bottom; PAL(I) places it 6 MHz from the bottom.
So the Netherlands recorder properly records the audio, and properly
reproduces it - but at the "wrong" place in the channel, as seen by your
South African TV.

Unless there is a switch on the front of the VCR, I don't think there is
anything you can do that wouldn't be more expensive and
poorer-performing than simply buying a new VCR. For example, you could
design an external circuit that would extract the audio carrier, change
its frequency, and reinsert it - but what a kludge!

One source (of many): http://www.calfilm.com/list.htm

Bill