Help with Svideo Adapter PAL --> convert to NTSC = Black and White pictures

[talrek]

Hi,
i just adapted a Svideo adapter "Pal" to "Ntsc"
I put pin 1 "only" to 5v and i changed the crystal.

Now image is black and white on my TV. The specs says that the TV/Monitor is NTSC.... i doubt... the model is Philips 231T1
I use Svideo via SCART.

Any ideas if it is normal or not ? and if i can test it. I don't want to ship items i'm not sure it works or not.

thanks !!!!

[Bryce]

If it's an AD724 based adapter, then that's all you need to do. Maybe the TV isn't as NTSC as they thought. Do you have access to another TV to test it?

Bryce.

Gesendet von meinem Motorola DynaTEC 8000X mit Tapatalk 2.

[talrek]

I have another TV. I'll try to test on it.

In fact, after replacing the crystal,  I have connected pin1 to 5v Only :
1 - I've cut the trace between pin 1 and 2
2 - I've cut from pin 1 to the 100nF capacitor.
3 - Then I've connected the same 100nF capacitor to pin 2 (so the capacitor is connected to the GND)
4 - And finally i've connected pin 1 to 5V.

Is it right ? or am i wrong ?

[ZbyniuR]

NTSC from USA is different than NTSC from Japan.
My TV can display in color PAL, SECAM and one of NTSC (I don't know which one). Anyway I had to modify my PSX, to NTSC games was look colorful by composite.
Maybe your problem is similar.