I recently replaced my STK392-010 convergence chips for this tv.
Everything went well, solder was perfect and reinstalltion was smooth.
I turn the tv on and start the realignment procedure. No problems
there, red, green, and blue are aligned perfect.
I then exit after saving the settings and try to watch some tv. This
is where the problem is, all channels and all inputs display in black
The menu shows up in color, and the PIP (with all sources) also shows
up in color, so I know the TV is capable of producing a picture in
color, but the main output is black and white. In addition, when the
convergence was screwed up, and the self focus button was pressed, it
would fail and say (Check Factory Data). This is still happening,
preventing self focusing.
Does anyone have any suggestions on how to fix this? Is this a
service menu setting? I wanted to check the service menu setting
values, but I don't have the service manual, anyone know these?
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Re: Samsung HC-P4752W No Color
Do not automatically think you need to go into the service menu. I bet you 100 to 1 that you pulled out a plug or a connector somewhere OR one is not seated into the plug all the way. If the set worked with color before you messed with it, there is not a problem in the service menu. The service menu is not the fix all thing. it is there to make fine alignments and adjustments, and as a matter of fact, messing with a service menu even with the service manual is very dangerous. I have seen peeps ruin TV sets by messing around with the service menu alignments. STAY out of these alignments. they are not going to fix a problem that all of a suddenly comes up. Repair the problem in the circuit first. Good Luck
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The value you are looking for is 3.9 ohm. Just ohm them out and replace the ones that are not right on the money= very important for longevity. Don't forget to clean and apply new heat sink compound to the heat sinks.
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Ur convergence is dead.Must replaced 2 Convergence ICS,and some or all the resistors.Know how to solders?Buy a convergence kit Tv repair World.com,Tvrepairkits.com to repair it ur self.The shop will cost u $300 for parts and labors.
You may need to replace your STK chips in your convergence board. I just replaced mine due to ghosting. Seems to me asd anything that affects your picture quality is caused by bad STK chips. I purchased mine on ebay with a soldering iron solder and a solder ****** braid and paid 30.00 which includes shipping! Took less than an hour. The auction was for the STK392-010 but they had mentioned a 040 chip in the listing in error and sent me both sets. The STK392-040 is a better chip and works perfectly with my HC-P4752W. I had never soldered an electronic part in my life. I am an electrician and a plumber and master install tech. buy the chips. while they are being shipped to you, look at YOUTUBE for videos of soldering and desoldering using braid. You will get a good idea at what you need to do to fix tv! Also look for anything related to the convergence board for this model on YOUTUBE. Sorry so long but want to help as much as I can!
Have you tried to use the convergence function on the TV? If that has not fixed this issue then you have bad convergence IC chips. These chips are microprocessors that align the blue and red tubes with the green (which is stationary). This converges the three tubes to create the image that you see. Failure of these chips (usually from heat over time) is a common problem with projection TVs. The chips are not very expensive; from $35-60 for the pair. Replacing them involves some tedious desoldering of the old ones and soldering in the new ones. If you have some experience with electronics and soldering it is not hard. Shops will charge $300 and up for this repair. If you want to do it your self post a comment bnack here and I can assist you further.
My television is a hc-p4752w and the color convergence is way off. The red and green are not together and curl away from the top of the screen and bottom too. I tried to auto focus with only making the color separation worse. The tv is about four years old with lots of play time...
I am a aircraft mechanic with some electronics training so I don't mind replacing components I just don't know where to start and have no troubleshooting manual for help. Any help would be greatly appreciated!!!!
The colors weren't lining up correctly on my HC-P4752W which is only about 30 months old. I did a little bit of research and got ahold of the people at http://servicemanuals.vstore.ca/ They recommended replacing the IC's as well as the IC resistors. I purchased the replacement parts from their site and made the repairs myself. I should mention that I didn't have any previous soldering experience. The repair was easy and a complete success. You may find replacement parts elsewhere for slightly cheaper but what you won't find is the prompt and detailed customer service that they provide. They gave me there # and said to call if I had any questions before or during repair. I took advantage of their services and got answers every time I called.
Similar problem, then about 2 weeks later the SD convergence went out.
Changes convergence Amps,,,
Now I'm trying to learn what 2 red flashes mean now when I try to power it up,,, it flashes twice then shut down into standby mode,,, I got no picture after installing STK392-040 chips, thinking about trying another set as atleast I had blury picture before. No solder shorts of opens that I can find. TV has always been a pain,,, locking up once in a while such that you can't change modes,,,