[ejboss23]

Hey Everyone -

First time poster here. One of my older TV's has stopped working and I really don't want to replace it. It's a great spare TV.

Samsung hl-r4667w. When I turn it on, the picture comes on and then the screen will go black. A few moments later the screen will come back, and then go black again, and so on. When the tv is powered down, the STANDBY/TEMP light is solid red. When I first power it on, the green LAMP light will flash once or twice, and after that there are no other indicator lights.

I did some minor troubleshooting with the Samsung tech, including taking out and putting back in (but not replacing) the lamp.

Any ideas what it could be? Should I just replace the lamp? The tech didn't seem to think the lamp was the problem, but couldn't offer any further assistance.

Thanks guys!

 

[lcaillo]

When it goes black does the lamp remain lit?

 

[ejboss23]

I believe it stays lit. Of course when I go to check it decides to work perfectly. I'll have to get back with a definitive answer when it decides to not work next, but I'm pretty sure the lamp stays lit.

 

[lcaillo]

If it stays lit, that would be definitive evidence that it is not the lamp. Common problem with these sets is the digital board causing strange behavior but I would also check the tactile switches on the control panel. If one is leaky, not uncommon, it can tie up the data bus and cause this kind of behavior.

 

[ejboss23]

The lamp stays on. Should I try and replace the digital board?

 

[lcaillo]

Not until you check the switches.