Question about Samsung HCM4215W 42" Rear Projection Television

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CRT question I bought the wrong color. Can I just change the lens assembly? I bought red but I need blue. Know of anyone who has one for sale? Thanks and Happy Holidays to all!!

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You need the right tube. As for one for sale, you may find one here if some of the other questionaires don't get their sets fixed. Good Luck
Ed
NC Electronic
Mills, Wyoming

Posted on Jan 06, 2008

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I just replaced six resistors and heat sinks on my Hitachi 43fdx01b


2.2 is red,red and 1.5 brown, green---no polarity.

if you did not change the chips or poor soldering,,,,,,,,

Jun 26, 2012 | Hitachi 43FDX01B TV

1 Answer

Turned on tv and it looked like 3d. Found red horizontal convergence lines extremely bowed. Cannot correct with magic focus either in auto or manual. What is the fix and what is more cost effective ......


TAKE OFF THE FRONT PANEL AND FIND THE FOCAS ELECTRONIC FOCAS CONTROLS. USUALY BETWEEN THE LEFT SPEAKER AND THE FIRST CRT GUN. PAUSE A DVD WHEN THE CREDITS GOING. OR USE A MENU IN YOUR SAT RECEIVER TO LOOK AT. USEING THE GRID IN THE TV SOMTIMES IS NOT ACCURATE. YOU WILL SEE 6 SMALL KNOBS (RED,GREEN,BLUE)FOCUS AND(RED,GREEN,BLUE)SCREEN DRIVE .FOLLOW THESE STEPS 1 TURNDOWN RED AND BLUE SCREENDRIVE 2 FOCUS THE GREEN (YOU SHOULD SEE SCANLINES) 3 TURN DOWN THE GREEN SCREENDRIVE 4 TURN UP THE RED SD UNTILL YOU SEE RETRACE LINES THEN BACK IT OFF TILL THEY ARE GONE. 5 FOCUS RED (UNTILL YOU SEE SCANLINES) 6 TURN RED DOWN AND TURN UP BLUE 7 FOCUS BLUE (BLUE WILL NOT BE AS GOOD AS RED+GREEN NOW YOU ARE IN FOCUS, NOW YOU NEED TO GET SCREENDRIVE BACK THE BEST WAY IS TO, PAUSE A DVD ON A BLACK SCREEN SELECT PLAY MOVIE AND HIT PAUSE RIGHT AFTER . TURN ALL THE LIGHTS OFF IN THE ROOM AND USE A SMALL FLASHLIGHT TO ADJUST SCREENDRIVE SO YOU DONT MOVE FOCAS BY MISTAKE. THE TRICK IS TO END UP WITH A VERY FAINT GRAY SCREEN WITH EACH COLOR UP AS FAR AS YOU CAN WITHOUT SEEING ANY COLOR ON THE TV. WHEN YOU GET THIS TRY PLAYING THE MOVIE. MAKE SURE THE BRIGHTNESS AND CONTRAST IN THE TV ARE AT A NORMAL LEVEL BEFORE YOU START . COLOR,BRIGHTNESS,AND FOCUS IS NOW SET TO YOUR DVD PLAYER.DO A FINAL CONVERGANCE AND YOU ARE DONE!
IF YOU CAN'T GET A COLOR TO FOCUS YOU MAY HAVE TO DO THIS MANUALY. SOME TV'S YOU CAN LOOSEN THE NUT ON THE CRT LENS AND MANUALY FOCUS IT. (LIKE AN OLD CAMERA). IF YOU GET THIS FAR YOU MIGHT AS WELL CLEAN THE LENS WITH A VINEGER BASED GLASS CLEANER (SPRAY THE RAG NOT THE TV) TAKE A LOOK AT THE MIROR, CLEAN IF NEEDED. IF THE MIRROR IS REAL DIRTY THEN THE SCREEN MUST BE BAD TOO.TAKE THE SCREEN OFF AND CLEAN THE BACK SIDE IF NEEDED. LOOK INTO THE LENS AT THE PICTURE TUBE YOU SHOULD SEE A NICE BRIGHT CLEAN PICTURE IF IT LOOKS CLOUDY YOU NEED TO CHANGE THE LIQUID IN THE CRT GUNS.I DON,T THINK YOU WAN'T TO TRY THIS YOURSELF. TIP(I USE A LITTLE ARMOR ALL WHEN I CLEAN LENES, THIS REPELS DUST LIKE IN YOUR CAR) IF YOU CHANGE YOUR FLUID AND WANT TO KNOW WHERE TO GET NEW FLUID I PUT CLEAR ANTIFREEZE IN MY PIONEER TV 3YEARS AGO AND STILL LOOKS GREAT "NOT KIDING" HOPE ALL THIS YOU. IF YOU ARE NOT COMFORTABLE TO DO IT. HAVE IR SERVICE. REPAIRING THIS WILL BE YOUR BEST OPTION>THANKS

Jan 09, 2011 | Hitachi 51SWX20B 51" Rear Projection...

1 Answer

Not able to get red tones on TV


the problem is at the crt base .there r three red,blue n green o/put.verify if there is dry in the soldering n check the red cathode voltage it must b around 150 .if not then check the resistor that feeds the red o/put.it could b 12 to 15k. all crt have 3 driver color red blue n green,whenever one driver not working the color changes.that wat happened to ur tv now i do not know wat model u have.the drivers may b transistors or now its ic that r being used like tda 6103q.best of luck

Jan 03, 2010 | Toshiba 27AF45 27" TV

2 Answers

I have KP-51HW40, after being turned on for a few minutes the screen goes full organe/red. There is sound but no picture. Would anyone be able to let me know how to fix it. Thanks.


I believe you have a bad Red CRT. I would not go into replacing it because the last I have heard, Sony no longer has the CRT assembly to send. You must remove the CRT, Remove the Mechanical Lens and send the CRT back to Sony so they can refurbish it. We are talking a lot of money for a professional to come out and do it. I do not recommend going alone on this. I would check the prices of replacement sets. This repair could easily cost 800.00 or more and you have no guarentee that the other two CRT won't fail soon.
Hope this helps,
Skyassoc

Jul 18, 2009 | Sony KP-51HW40 51" Rear Projection...

2 Answers

Sony KF50XBR800 Red Component not working


this sound like a picture tube that has gone out but may a circuitry problem and needs to be checked out by a profesional. Is the red tube lighting at all on any of the other inputs or menu?

Dec 18, 2008 | Sony Grand WEGA KF50XBR800 50" Rear...

2 Answers

Just need to know where to plug in the red, green and blue cords


The red-blue-green outputs of the cable box are COMPONENT video, and the yellow-white-red inputs on the tv are COMPOSITE video. Although the words sound almost alike and the connectors look similar, they are incompatible signals. You'll need to change either the cable box or the tv so they match. Maybe this would be a good way to rationalize getting that new home theater system! Or maybe call your tv cable company and ask for a different box with composite video output. Once the cable box matches the tv, you don't necessarily need to change the cables. If the connectors fit, go ahead and use the cables you have.

Jul 15, 2008 | Quasar SP-3235 32" TV

1 Answer

Samsung Rear Projection Problem (not convergence)


The tv has 2 focus adjustments for each tube, mechanical and electrical.

1. Mechanical focus is set by looking at screen from back (through inspection plate on back of most samsungs) and rotating the lens assembly on CRT. loosen wing nut and turn lens assembly to go through focus and back to best position.

Put convergence pattern on screen and manually misadjust bottom red and green lines convergence so they can be seen through inspection hole.

With back cover of TV off you can usually reach your hand up beside the lens assembly to loosen the wing nut then rotate to adjust. Green is in the middle. The focus will be obvious when you rotate and look

When you are finished make sure the foam dust protector is not over any of the lens assemblies and the wing nut is tight.

2. Electrical focus - located at front of unit. the front grille/speaker cover is removed and maybe a cover over the front crt inspection hole.

In the inspection hole there is a black plastic "Focus/screen adjust Assembly" with 2 rows of 3 controls.

One row is focus and the other is screen. The middle controls are for green with R/B on either side. Usually the controls are labelled as "focus" and "screen". You want to adjust the focus controls, one for each color. Look for the focus or screen label imprinted in the plastic. Don't play with the screen settings.

With the same misadjusted convergence pattern you can see a red, blue and green line. Adjust green focus and watch green line for best focus. Do same for other 2.

Screen adjustments are very exact and delicate. The easiest way to deal with them is to turn color off in Customer adjust menu. Put any color tone adjustments in the middle (low, med, high, put at med).

You should have a b/w picture if there are no crt or other color related faults. If it is close to B/W leave screens alone.

If the pix is too green, then the green screen setting must be reduced a small amount. Do not play with these adjustments as most TV repairrers have a difficult time adjusting them.

If focus adjustments don't help then focus control or CRT may be defective. Needs expert to determine.

easyab

http://calgaryconvergencerepair.weebly.com/convergence-ics.html


Jun 24, 2008 | Samsung HCM4216W 42" Rear Projection...

2 Answers

No blue manual convergence - Samsung pcj522r


Thats a very strong possibilty the phosphorus may be burned off the CRT face. Does the blue project when powerd up and looking in from the raer of the set? Look into the blue CRT lens while its playing If you can see a clear picture I would think that you have some open resistors in the blue circuit, If you cant see a picture its time for a CRT. If you need a CRT let me Know I have a good source for them Used.

Jun 21, 2008 | Televison & Video

1 Answer

Blue lens works, but has a weak projection compared to the green and red lens


The most common problem I have seen with these Samsung projo units is the blue CRT (picture tube) failing. They usually form algae on the face of the CRT which means replacement of the CRT or rebuilding it by a CRT rebuilding company. I wouldn't suggest the novice to pull the CRT out because if the wrong mouting screws are pulled you will spill out the cooling fluid within the face of the CRT and that will cause more problems.

Apr 18, 2007 | Samsung PCJ522R 52" Rear Projection...

2 Answers

Loss Of Blue Color


The loss of blue could be one of 3 things. First of all if you are connected to a HD cable box or a HD sat. recvr. using component cables. Make sure the BLUE connection hasn't fallen out or is loose. The possibilities is the blue CRT (picture tube) itself or something in the blue CRT driving circuit.

Feb 25, 2007 | Toshiba 57H84 57" Rear Projection...

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