[akielb]

Hello,


I recently finally got my DLP back up to par after a long time dealing with the dreaded shadow on the left of the screen. It took 5 different light engines before Best Buy got one that finally worked. Good thing is that I've used my warranty 3 times now and one more and I get to trade this SOB in.

Well, now the blacks are extremely bad (washed out) in lowlight "night" scenes during movies or TV. The blacks appear light gray and then all other colors just plain suck. I've tried to change the contrast and brightness levels and nothing seems to help. Normal light scenes seem to be just fine. I really feel like I'm doing a horrible job explaining this because I don't know how to.


hopefully i can get some idea's or tips


Thanks

 

[akielb]

OK - still having this issue. I have not called best buy yet hoping that maybe it was just a setting that I could take care of personally.


To describe to problem better, I guess you could say during lowlight (night or early morning) scenes the picture goes more towards the grey scale.?. I'll try to find a scene that shows this really bad and take a picture.


Any input in the mean time would be appreciated

 

[mes444]

According to my trusty service manual for HLR's it says, after replacing the optical engine, I'm assuming it's the same as the light engine because it's the only engine we have, the following adjustments are necessary in the service menu:


Index Delay, Actuator Gain, V-Position and H-Position, CCA, Tilt Focus.


So either get the person who installed it back out to your house so he can go into the service menu and sync it all up, or go to samsungparts.com and order a service manual for yourself. There are instructions on how to do each adjustment in the service manual.

 

[akielb]

Well, since I have no idea 4 of the 5 are I guess I'll call again. Thanks for your help.

 

[akielb]

Here are a few examples of bad shading I guess. Just notice how when a nice transition between blacks is called for, there is a distinctive line. It never used to be this bad until after they changed the light engine last time. Now it makes it almost unbearable to watch movies.


All pics are from Harry Potter -

)


Clouds - notice how the shading is really bad

These two are Harry's face just after the clouds come around. Notice how the skin is washed out and has bad shading - and then a couple close-ups

Notice the grass in this seems washed out

And same thing - bad shading and washed out

Does this all still appear to be a calibration issue??

 

[mes444]

It's not a calibration issue. The things I noted above are not "calibration" items, they are adjustments repair techs are supposed to do when they fix tvs. A calibration person addresses other items, not repair adjustments. When new parts are introduced into a digital tv, the various items I mentioned above need to be synched up, coordinated, so they all work correctly together. You need to have someone do the adjustments and then evaluate the picture.

 

[akielb]

I called Best Buy and they are sending out a tech on 9/5/08. I don't work on Friday's so I always just ask for the next available Friday. Otherwise they would have been able to be here on Tuesday. I'll update after they take a look at it. Hopefully he won't know what the hell is going on and just allow me to get it replaced since this will be my forth warranty issue on this TV.

 

[akielb]

Tech came out today to take a look at it.. He said the exact same thing that you did. He attempted to change the Actuator and the Index and that did nothing to the picture. He changed the Gain and it changed it some, but only on one setting and it made the picture way to light.


So NEW TV TIME!!! - I fell under the Best Buy no Lemon policy and they are going to give me a $1000 store credit or order me a HL50A650 since that is the closest comparable model!


I guess its a good trade-up - should I stick with DLP or go LCD? I'm thinking I'm going to like the size upgrade so the HL50A650 should do just fine.