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

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#### ELECTRON11

##### Guest
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>

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Any other replies are always welcome via PM.

#### Trishool

##### Full Member level 1
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

##### Full Member level 1
Ok I searched the link for you as you are new to Elektroda :

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#### ELECTRON11

##### Guest
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
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http://oh3tr.ele.tut.fi/~ftp/video/videoinv.gif

Complex one (Electronics Now July-95)
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ELECTRON11 DON'T FORGOT TO THANKS ME :smile:

AmR

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#### ELECTRON11

##### Guest
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

##### Newbie level 4
salam 3alycom;
please i need a vhdl code for descrambler 188byte

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