Top 10 Samsung HCL4715W 47" Rear Projection Television Questions & Answers

The clicking is caused by bad capacitors on the mainboard. It is a known problem that is pretty easy to fix. I have never soldered before and I was able to fix it for about 6 bucks! If you take off the back cover (about 18 screws) the mainboard is right in the middle and in the top right corner are 4 capacitors. They are in a row from top on down. Check to see if any of them are bulged on top and if they are they are bad. All you have to do is go to radio shack and get 10u35 volt capacitors and solder them in to replace the bulged ones. The ones that came with the set are under powered and these will fix the problem. Most people are quoted about $500 or more to fix this when a little work on our own works wonders!! If anyone wants more info I am on facebook! Brian Miller in Wisconsin!

Ur backlight video board is dead,must replaced.

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.

TV

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

Replace both convergence IC's part# STK392-040. Also check for burnt/discolored resistors nearby.

Most likely what happened is that the lamp in your TV shattered and is going to need replacing.

It is a convergence problem. The IC's (integrated circuits) or STK chips or the "guns". You have a red,and blue, IC's that provide all the colors. When the colors are out of convergence, you get ghosting or what looks like 3D pictures. I haven't been able to locate the part numbers for the IC's or STK chips but have located a convergence board. No luck determining if IC's are included (a phone call first to verify) but if they are, would make life much easier for you to install. Part # is BP95-00415H http://jr.partsearch.com/Part/Samsung/Samsung/BP9500415H/New.aspx?ModelMfgName=Samsung&ModelBrandName=Samsung&ModelNumber=HCL4715W

Typically, IC's cost around $10 or less. here is a link to a guy who provides pretty good instructions on replacing the IC's along with pictures.

http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html

Hope this answers your questions. Best of luck.
Greg

The focus controls on this set are in the front behind the bezel. I'm not sure, but, I think on this age of Samsung, the screws to the front bezel are on the back side of the set. After removing the screws from the back, the front bezel snaps off and the door behind the bezel need to be removed. Watch the wires connected to the bezel, they need to be attached in order to turn on the set. The focus controls are on a black control block (there are three of them, one for each color). Adjust each color for sharpest picture. I use words on the screen for alignment. Each CRT board has a screen control (Adjust each slowly until retrace lines appear on the screen and then back off until they disappear). You may turn off the color and make sure that the picture is black and white. If it is not, then, which ever color is dominant, back it off a bit with that screen control. Facing the set, Red is left, Green is middle and Blue is on the right. Use only one hand inside an operating television. Do not touch the board, just the controls. This concludes television alignment 101. Any questions respond to this post and I'll reply.

The Convergence ICs will need to be replaced , 95% of the time thats the problem they are on the sub board not the convergence board. You will need two STK392-040 ICs . you can get replacements at the following link and they will provide free installation instructions along with free on-line tech support when you install them. takes about 45 minutes. Heres the link.
http://servicemanuals.vstore.ca/

The tv have a problems known as a convergene problems,it dead.Tv have colors lines R,G,B mis alignments,have colors shadow pictures or 3D pictures look alike?The tv convergence board have dead 2 STK convergence ICS and some or all of it resistors too.These parts on the tv convergnce board,must be replaced to solved the tv picture convergence problems.Can u do basic things like take things aparts and install another things into it placed?Yes?Try website like Tvrepairworld.com to buy a whole refurbish convergence board for the replacement.The DLP tvs Samsung/Akai tvs used the same convergence board.Or the shop,will cost u like $300-350 for parts and labors.

http://downloadcenter.samsung.com/content/UM/200306/20030618174051718_AA68-01509D.pdf