No picture, but it does have sound. HLN617W

It's not the lamp, most of the time they suspected it and the fan gone to malfunction when encountered this kind of symptoms but the fault came from the color wheel. You have to replaced it to resolve the issue.

The bulb is bad my friend, even if it looks good, the flashing light is the first indication. You should get the original lamp from here http://www.samsungparts.com/part_detail.asp?catalog%5Fname=Parts+and+Accessories&product%5Fid=BP96%2D00224B Good Luck

Bad Color Wheel. Encompass Parts Distribution 1-800-638-3328
Samsung Parts.com 1-800-627-4368
PN# BP96-00250A Price $82.66

Its the colorwheel almost positively! Save the bulb you took out its probably still good .
Go to partstore.com

Check the link below - sounds like you have a bad color wheel.

Samsung Color Wheel

http://www.jangro.com/electronics/samsung-dlp-replace-color-wheel/

In this case it seems you may have an issue with your ballast. Either it's going out or barely starting. I recommend you replace it

Most likely for this symptom is the lamp. If you'd like you could sit behind the set and have someone turn it on, you should hear the color wheel spin up and then you should hear the ballast try to fire the lamp, it makes a small arcing sound. If the lamp doesn't light the process starts over again.

i have found the lamp will cause sound no picture but if the picture freezes could be dmd bd or digital bd going bad

bad lamp will cause 90% of problems you can take it out to see if it is broken filament is usually shattered

it sounds like the main board to me, I can purchase them if you want one let me know