About Atari 2600 composite mod...

[MockyLock]

Hello everyone
First of all, I'm french so i hope you will understand everything.
I tried to add the composite signal to one of my Atari 2600.
It's a MODEL NO Cx-2600 AS, it's a PAL Model.

I used this wiring diagram:


I couldn't find the exact components so i used these ones (all in Ohms):
390 for 370
120 for 130
1K for 1K
33 for 33
220 for 220
470 for 450
Transistor BC639 for 2N4401 (it has E,B,C inversion but I was carefull when soldering).

Here is my soldering diagram:


Because it's a PAL model, i couldn't use the spots marked on the pics. I used this spots on the TIA:

it's not the same pins as NTSC ones.

So, i wired all, and it's not working :/ Sound works well so it's the good chip (not the same label as ones of benheck pics).
When, i turn the VCS on, there is a tiny flash light on TV (so there must be some kind of signal but no images...
Do resistor values are important ? I thought that it would only alter colors or lights.

So, my poor VCS is on my desk, the case opened board soldered, waiting for revival.
Please, help me ^^


[EDIT]
Actually, after more tests, it seems that i have the image but with no sync, the screen is always going to top, and image is cut in alternate Z form (i hope you'll understand my explanations :/)
I used pin 2 for CSYNC.
Thanks for helping me :]

[c_mon]

As you are French(I suppose you live in France), shouldn't your system be SECAM rather than PAL?

Anyway, if you have the book check Atari MLL and solder a wire from "x" to "u"(pin2).

Let us know...

[MockyLock]

Hello c_mon, and thanks for answerin gme.
As you said, it must be a SECAM model.
I don't understand which are this spots "x" and "u". As you told bout pin 2, i suppose that these are pin from TIA chip ?
pin 2 would be "u" ? so which could be the "x" point ?
I apologize if i'm boring you but with all these difference between NTSC and SECAM models, i'm a bit lost :/

[c_mon]

[img=http://img234.imageshack.us/img234/4070 ... ih1.th.jpg][img=http://img234.imageshack.us/images/thpix.gif]

This should help you...

[MockyLock]

Hello
Once again I thank you for wasting some time with me
So, my VCS board is absolutely different from the picture you posted.
As i wrote above, spot u is pin 2, isn't it ?
But waht is the spot "x" ? I guess it must be a resistor ? But, because of the difference between board, i don't know which one...
Arrghhh, but why the hell we French do we have this SECAM curse ???

[c_mon]

If you can send here the front and back pictures, it would help..