20 Most Recent Samsung HC-P4752W 47" Rear Projection HDTV-Ready Television - Page 4 Questions & Answers

Hi jwalkera15,

Sounds like you, my friend, have a problem in the convergence circuit. The good news is that it is typically fixable for far less than replacing the set. The bad news is that it is not something that I recommend that you tackle yourself. I don't fix my car, I let my mechanic do it because that is his profession.

I small "mom & pop" shop should be able to handle this reasonably, provided it is not something catastophic like a bad DCU. In my shop the average for this job is between $200 and $250 depending on parts cost. I'm telling you what your local shop will charge - just what I do. Bear in mind that this is for a repair in the shop. You will save money by avoiding a service call to the home and taking it to the shop yourself. A 47" set is small enough to fit in the back of a standard mini-van. Take out the seats, put down a blacket and gently slide the set in on its back. Yes, on its back. It will be just fine. I delivered rear projection sets on their backs for almost twenty years and they all survived!

Good luck!
Rob

The complete fix will cost more than a new set.

You will probably need to replace ALL of the CRT's and do a Full Convergence Alignment by a very experienced tech. Never replace only CRT as it will be brighter than the other two CRT's.

These sets need to have all three colors - RED - BLUE - GREEN - lined up correctly on the screen in order for the picture to look normal. When its out of alignment the video will look 3-D, wavy, distorted, etc. Most of the time you just need to adjust your convergence in the menu. If you cannot adjust it in the menu - then your convergence is broken and needs to be repaired.

Convergence problems are very common on all Projection TV sets including Sony,Samsung, JVC, Philip Magnavox, Panasonic, Akai, Pioneer, Hitachi, Zenith, and others. You can get a convergenece repair kit wiith instructions from the links below.

Here are some of the most common problems with these sets...

Problem #1) Convergence

Yours may have one or more of the following symptoms

• Screen Looks 3-D
• Colors wont align
• Screen may look distorted or warped
• No Audio/Video - makes a chirping sound.

Problem #2

Another common problem is dull or washed out video.
Your TV may have one or more of the following symptoms....

• Dull looking picture
• White looking picture
• Halos around objects
• Red/Orange looking picture

You can see some more examples and find a fix here
http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

You can but there is extremely HIGH VOLTAGE in it so be very careful.
Why is the back off ?

Projection TV sets have several common problems listed below.

Problem #1) Convergence

Symptoms:

• Screen Looks 3-D
• Colors wont align
• Screen may look distorted
• No Audio/Video - makes a chirping sound.

Example Photo:

Problem #2 CRT Fluid has clouded over.

Symptoms

• Dull Video, Washed out
• White/Bright looking video
• Halos around objects
• Red/Orange looking

Example Photo:


You can see more examples and find a fix here...

http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Find Q433 and replace it with NTE54 this will solve your problem Mats should have them 1-800-628-1118
Also Visit this website Encompass Parts Distrubtion
they will list Parts and Prices 1-800-638-3328

Does it sound like thin grinding noise?
The color wheel is very common problem. Color wheel for this model is about $100 to $150 plus labor.

Nour BMI

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.

Hi


Thanks for using FixYa. From what you have described it seems that you have to replace the convergence IC and check power resistor for leakage, if values are not exact you have to replace them. The typical cost to get this fixed by a pro is about $300 - and it doesn't mean that he/they will do a job better than you do. The parts are less than $100 (about $20-$30 for the IC's) if you want to do it yourself. Replacing only the IC's MAY solve the problem; however, many people have also had blown resistors requiring replacement. Why would you ask should you replace both of the IC's if only one is shot?! If one is shot the other one is not far away and for that little price of the chips it worth changing them both at the same time. Also the convergence board should be checked for cracked solder. If you replace the ICs and the resistors are shot, the ICs may blow again almost immediately, meaning you may have to do the repair twice. Please do rate the solution if the issue is resolved or else revert for further assistance.


Thanks
Rylee

Thats usually related to the convergence Ics and the 3.9 ohm resistors needing replacement.

Convergence is dead.Must know how to solders?Tries Tv repair World.com,Tvrepairkits.com buy a convergence kit replaced what in that kit.The shop will cost u $300 for parts and labors.

if the ic have been replaced, it may be necessary to refocus the rprojection tubes, this is done by moving the rings near the bottom of the tube, determine which tube and by focusing the lens .. be careful when doing so high voltage can kill you!!

Convergence is dead.Know how to solders?Replaced 2 Convergence ICS and all it resistors.Tries Tv repair World.com,Tvrepairkits.com for the convergence kit.The shop will cost u $300 for parts and labors.

Replaced the two convergence ICS first,than ur resistors will read 3.9 Ohms,the one is not must change.

Know how to solders?Ur power board is dead,capacitors puff up or burst open,must replaced these capacitors to get power back.Or buy and replaced the whole refurbish power board at Shopjimmy.com,Ebay.com.

Replace the sub deflection board thats what has the convergence circuits on it. Heres a link to the board for your model. http://servicemanuals.vstore.ca/product_info.php/pName/p59a-pwr-def-board/cName/samsung-parts