[SOLVED] Descramble circuit for video inversion. Plz help!!

[ELECTRON11]

video inverter electronics now

Hello. My CATV firm use just video inversion for scrambling. I'm searching for a circuit to invert video image. I will insert the ciruit between VCR and TV. Could you plz inform me the circuit for video inversion?

<font size=-1>[ This Message was edited by: ELECTRON11 on 2002-02-04 17:17 ]</font>

*****************************************
Please don't reply unless you have useful information to add on this post.Thanks
Any other replies are always welcome via PM.

 

[Trishool]

Search for my previous postings in this forum there at that time i mentioned a link which would take you the few $$ solution also search google for Randy Linscott only if I remember his name correct he has a schematics for cabel tv descrambler .

 

[Trishool]

Ok I searched the link for you as you are new to Elektroda :

**broken link removed**

 

[ELECTRON11]

Trishool, thanks for the information.
I will modify the unviversal de*scram*bler into simple video inversion function. I found this circuit before, but want more simple circuit for only video inversion. Anyway, Thank you.

 

[SphinX]

Hi,

You are lucky .
The Scrambling system here in egypt is complex .

For the inverter circuit

Simple one
----------
http://oh3tr.ele.tut.fi/~ftp/video/videoinv.gif

Complex one (Electronics Now July-95)
-------------------------------------
**broken link removed**

Please anyone have a comment,Reply.

ELECTRON11 DON'T FORGOT TO THANKS ME :smile:

AmR

 

[macxom]

seek **broken link removed**

 

[macxom]

or http://www.geocities.com/ResearchTriangle/Node/5459/

 

[ELECTRON11]

Pharaoh of Egypt, Thank you for the great link. I think the video inverter from Electronics Now is most simple circuit. I will try it.

And macxom, could you plz confirm mentioned site again? I can't go to the web.

 

[SphinX]

Hi,

Don't forgot to email us the results.

AmR

 

[eslama]

salam 3alycom;
please i need a vhdl code for descrambler 188byte