v9 PS2 - no video - possibly LA chip?

[modicullus]

Just wondering if anyone knows whether or not a blown LA chip could cause a 'no video' problem. Everything else seemed to work fine on this machine (as I could hear it boot up the disc and load the game).

I thought I had read somewhere that a bad LA chip could possibly cause a 'no video' problem, but I would think if the LA chip is bad, then the disc would spin or load at all.

Thanks

[fasman]

I doubt it is the LA as you can hear the game boot up,if it was the LA the game would startup at all(as far as I have read).

also did you check the fusses?

[modicullus]

yup,... all of the fuses were fine. The reason I'm wondering is because I think I've read in two different places now that if the LA chip is partitally fried, it can give the 'no video' problem.

[Fluffy]

If you remove the LA chip completely and it then shows video then the chip is faulty. If there's still no video with no LA chip then it's something else.

Fluffy

[modicullus]

Thansk Fluffy,... that's what I've read at another place, so I'll probably give that a try. I had to make sure though that firing up the PS2 without the LA chip wasn't going to hurt anything (which apparently it won't).

[bronigs]

sounds like it can also be two bios wires crossing each other, try to limit bios wires overlapping each other usually fixes any of the problems I have had. If the game reads the LA chip is 100% ok the LA chip controls the laser/reading of the disc so if the game reads the LA chip is perfectly fine.

[modicullus]

oops... my bad. I should have mentioned that this PS2 hasn't been modded.

But from what I've gathered, it may be possible that the LA is partitially fried - which would give the 'no video' problem, but still boot discs. I was just looking for some confirmation about this...