Samsung rear projection tv problems - Samsung HC-P4752W 47" Rear Projection HDTV-Ready Television

SOURCE: Samsung HCP4752W Convergence Problem

I have the same covergence problem on same model. I have checked the 3.9ohm fusible resistors all twelve seem to be OK, they read exactly 3.9 +/-0.05 ohms. I don't suspect the 150 Ohm resistors since they seem to be normal ceramic resistors across the input and output of each channel of the STK chip. If they burn, there should be some kind of discoloration, which is not the case. I hope that changing the STK only will do me some favor of getting the unit back to operation. Is it OK to use the same conducting material as that used in PC microprocessors? How did you solve the V-Shape line problem, just in case I get it.

SOURCE: samsung rear projection tv has multiple images with differnet colors

The auto self focus screws up if the picture does not remain constant or close to it while focusing. It is designed to self focus every fifteen minutes. Go to menu and then setup and turn the auto focus feature off. I have had mine off for the past year and have had no problems. If you slide the bottom portion of the remote down you will see a self focus button. My suggestion is to put a DVD in and hit the pause button during a scene and then hit the self focus button. It should align back up and may take a couple of tries. (If you have an aftermarket remote, just enter the menu and then setup and you can activate the self focus feature, just don't turn it to auto focus!)

SOURCE: samsung rear projicton tv 42 inch aa68-50523a

how do i converge

SOURCE: Green out of alignment on samsung rear projection tv

Hi luke I am in the uk and not familiar with this set is it a three tubed crt television or an lcd projector type .. either way what you are descibing is convergence ( three primary colour guns all pointing at the same spot in a nutshell ) in the case of a crt projection tv three tubes one red one green one blue .. there should be a convergence pattern in the menu to re set the convergence via the remote check the manual . If it isn't adjustable you may have a scan coil fault or a tube ie : green with low emission check the green colour gun transistor and associated circuit for leaky caps resistors that have changed value or transistor leakage .. and don't forget the ever popular dry joints on the scan coil plugs .. hope this helps Vortash

SOURCE: samsung 4663w rear projection tv loud buzzing

Hai,
Buzzing can be caused by a bad ballast, colorwheel, or cooling fan... Nothing else makes a noise, unless it's comming from you speaker.

Hope it Helped U!