Sony KDL37M3000 sparkly

[CraigR]

Sony KDL37M3000 sparkly in picture. I have not run into this one before so not sure but I think the screen maybe bad or?? I have had to turn the brighness all the way up and also the backlight yet the picture still looks dark and too red and around some dark areas it's like blue or green sparkly. Ideas?

[tom66]

Re: Sony KDL37M3000 sparkly

Check gamma voltages on T-con board

[CraigR]

Re: Sony KDL37M3000 sparkly

OK, can you tell me where to tap off of for it? Or I see like 22 different little points that all say gama something.

[CraigR]

Re: Sony KDL37M3000 sparkly

Well I checked all those points marked Vgamma and readings as followed.
1. 15.39v
2. 15.26v
3. 13.5v
4. 12.31v
5. 11.40v
6. 10.81v
7. 10.47v
8. 10.16v
9. 9.92v
10. 7.52v
11. 7.36v
12. 13.21v
13. 12.87v
14. 9.23v
15. 8.72
16. 8.18v
17. 7.46v
18. 6.25v
19. 5.67v
20. 4.38v
21. .707
22. .301v

[tom66]

Re: Sony KDL37M3000 sparkly

Bad gamma chip, replace AS15 to fix.

[CraigR]

Re: Sony KDL37M3000 sparkly

or another TCON board right?

[tom66]

Re: Sony KDL37M3000 sparkly

Yes but often very expensive due to high failure rate.

[CraigR]

Re: Sony KDL37M3000 sparkly

Can't find the correct board or a repair kit. Even emailed SJ and nada.

[Shinju]

Re: Sony KDL37M3000 sparkly

I am pretty sure you can use any as-15 chip, atleast I remember reading it here or some other place.

[CraigR]

Re: Sony KDL37M3000 sparkly

anyplace you know of where I can buy just that chip?

[Shinju]

Re: Sony KDL37M3000 sparkly

Can you not read the markings on the chip at all? Sometimes I have to take a digital macro photo and adjust the light via iPhone photo editor to read em.

[CraigR]

Re: Sony KDL37M3000 sparkly

As15-f
0718bg
b7322k64

[Shinju]

Re: Sony KDL37M3000 sparkly

I have bought several as-15 chips from this seller and had a 100% success rate with their chips.

http://www.ebay.com/itm/100-NEW-IC-A...item35cc8fb341

[CraigR]

Re: Sony KDL37M3000 sparkly

ok, just ordered it. I will report back when it's in. Thanks!

[Shinju]

Re: Sony KDL37M3000 sparkly

You bet!

[CraigR]

Re: Sony KDL37M3000 sparkly

Well got it in and that did the trick. Thanks!

[Shinju]

Re: Sony KDL37M3000 sparkly

Awesome!