VCR: Remove the Tuner

[themaster1]

I was thinking today, would it be wise to remove a tuner out of a vcr ? The idea is that it introduces pertubations, interferences (radio frequencies i believe) , and if you take into account that my capture card also has a tuner that's a lot of disturbances imo. I only use this vcr to digitize tapes and only use the s-video in/out, scart. Besides everything is digital now.
If not advised what about some kind of protection of the in/out antenna plugs to avoid interferences?

[edDV]

It is doubtful that removing the tuner will have much affect on noise. It may make the unit stop working if the micro-controller loses communication.

If you attempt it, document every step so you can reverse the process if it stops working.

[themaster1]

So you think the interferences are minimal ? Ok that's one opinion.Looking for others

[edDV]

So you think the interferences are minimal ? Ok that's one opinion.Looking for others

Only saying VHS is inherently noisy so the tuner is unlikely to add much.

[filmboss80]

AFAIK, there is internal blanking circuitry in virtually every VCR that introduces a locked-in blue screen in the absence of an analog television signal. I understand that the frequency spectrum is now being used for other forms of communications, but the question is whether this will have any effect on every tuner on every channel selected. Unless you are having tangible issues, it would not be advised to mess with the electronics.

[themaster1]

I just have read This ebook about RFI, very interesting.You're right i will not mess with that, i don't have the gear to be sure (oscilloscope etc..) it's a real problem despite me thinking it's a valid concern.The question is: can the auxiliary channels (A/V) be the subjects of such interferences on a daily basis.In my mind the tuner (channels 0-99) and auxiliary channels (S1,S2 etc..) are two different things but maybe they're linked somehow inside the vcr.

[edDV]

I just have read This ebook about RFI, very interesting.You're right i will not mess with that, i don't have the gear to be sure (oscilloscope etc..) it's a real problem despite me thinking it's a valid concern.The question is: can the auxiliary channels (A/V) be the subjects of such interferences on a daily basis.In my mind the tuner (channels 0-99) and auxiliary channels (S1,S2 etc..) are two different things but maybe they're linked somehow inside the vcr.

VCR's are cheap. You can sacrifice one to experimentation.

[Deter]

Interferences ???

This idea is crazy....Removing the tuner from a VCR?

If you are playing a tape your interference is either:

#1 Bad Cables
#2 Bad Connectors
#3 Bad Caps in the machine creating noise in the picture

You need to do better testing on different machines and so forth. aka using different cables.....

Hook a DVD player up to your capture device....Blah Blah Blah....

In the early 80ties the old Atari 2600, used to have a lot of random interference in the picture and sometimes it would pick up the radio station or whatever nonsense. This was more than likely caused by the box that went in to the TV..

This is not 1982 anymore....I haven't seen this problem since I was a child...


In 1982 the trick we used to do was aluminum foil, that is a 2nd Graders solution to creating shielding....