Question about Samsung PCL5415RB 54" Rear Projection Television

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Need new green picture tube

We had a technician come out and look at the TV. He replaced a board which was not the problem. He said the green tube was leaking and needed to be replaced. It had leaked on the board. He later said that Samsung no longer offered this part (the green picture tube) for this set. Has anyone else had this problem? I called Samsung and they stated they do offer the part. Repair center still stating part is obsolete. Any suggestions on what to do with this TV??? need new blue and green tubes

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If there aren't any service parts available. I would suggest to click here to find more information or even get the CRTs rebuit by them.
Good Luck.

Posted on Jul 09, 2008

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If the repair center is an authorized Samsung service center, they should be able to get hte part for you. I don't have parts listings for Samsung sets, but the part numbers should be available from Samsung directly. Since you know the problem, try another service center that is associated with Samsung. Not all independent servicers can get parts from all manufacturers.

Dan

Posted on Jul 09, 2008

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Slinteriors
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SOURCE: need new green picture tube

You dont need a new tube. What you need is to repair the seal on your old tube and replace the CRT coolant fluid. There is a coolant chamber attached to the tube with long bolts with springs on them that contains coolant to prevent your tubes from getting hot. Yours may just need tightening, but I would replace the seal just to be safe as thecoolant can and will destroy your circuit board if its allowed to continue to leak on it.

Posted on Jan 22, 2008

6ya6ya
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Posted on Jan 02, 2017

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1 Answer

Can i fix my tv screen is red


Toshiba 36A10 36" TV is the model you have indicated---

If the screen is all red and or too bright (no green or blue can be seen) the problem is in one of two places: Either a shorted picture tube or the board that plugs onto the end of the tube.

That board sends red,green, and blue video and information to the picture tube via 3 pins on the tube (the K or cathode for each).

The set will have either 3 IC's on that board or 3 transistors, or a single larger IC for this.

to troubleshoot this:

I would locate the Red Cathode and unsolder that pin at the socket on that board--takes red out---if you have green and blue picture then---it is either the IC/transistor that feeds that on the board or the tube itself.

If it has 3 chips (usually will each have a metal plate attached for cooling) you can either remove and replace the red one OR what I do is swap it with the green or blue chip---if suddenly you now have a blue or green only screen you know that part is bad--simple as that.

If for any reason the picture tube turns out to be bad--you are finished and so is the set= way too expensive to replace it.

Let me know if you have questions or need advice.

Mar 28, 2012 | Toshiba 36A10 36" TV

1 Answer

After turning the tv on the colors are reddish and slow to conform to the normal color tones. i have a 36" toshiba flat screen tv


My first concern would be that, the picture tube is going bad. The problem you describe, tell me one of the color guns is shorting. In this case I would think the green gun is shorting. There are three color guns in the neck of the picture tube. They are red, green, and blue. Most of the time the green will short as it is powered heavily in most TVs. The next thing to check, is the small board connected to the picture tube. Look for any and all bad grounds on this CRT board. This is another big problem in all Tube type TVs. On this small board there will be three color output transistors, and resistors. These will many times run very hot and will create bad grounds over time. Check and resolder as necessary. If the CRT board does not fix your problem, replace the TV. Picture tubes are very expensive and will not be feasible for replacement. Search for a new TV. Thanks for asking and show all hands of support!

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1 Answer

No picture or sound


i think the light u see is the standby indicator diode. take your tv to w/shop, the technician will know how to test the following
tube so called bulb using a different mother board card, and also test the mother board using a different tube ( tv bulb)
test the power supply out put 95 volts to the line tranaformer which will give you different voltages 5, 12 and so on.
the isolation methode will help us trouble shoot the problem, we should not be rigid on one part only.
okay








9

Jan 05, 2010 | Panasonic Televison & Video

1 Answer

I have Hitachi 43" hd rear projection tv - too much red


It's probably either a bad red CRT (the red projection tube) or a shorted (or open) driver transistor on the red CRT driver board. If it's the latter case (bad transistor), it can be fixed. If it's the picture tube, well, it's probably time to go shopping for a new TV.
Do you need more information? Do you want to fix it yourself? Do you have electronics knowledge and experience? If not, call a qualified electronic technician (TV repairman), and he can tell you if it's the picture tube or not.

IF (and only if) you are a competant electronic technician, CAREFULLY check and compare the voltage on the collector of the driver transistor on the 3 CRT boards. (The driver transistor is the large one, possibly connected to a heat sink.) The voltages shoud be somewhere around 140 to 160 volts. If the red one is significantly different from the green and blue ones, then it's probably the transistor. Unplug the set (and wait a bit), and check the transistor with a diode or transistor checker. If it checks bad, then you found a bad transistor. Go to NTE Electronic's website to find a replacement. If it checks OK, then you're probably looking at bad (shorted) red CRT.

Dec 12, 2009 | Hitachi 43FDX01B TV

2 Answers

My tv color is blue and red is my lamp out or what


no your optic block is going south u need a new light engine big bucks

Sep 20, 2009 | Mitsubishi WS-55859 55" Rear Projection...

1 Answer

Need new green picture tube


You dont need a new tube. What you need is to repair the seal on your old tube and replace the CRT coolant fluid. There is a coolant chamber attached to the tube with long bolts with springs on them that contains coolant to prevent your tubes from getting hot. Yours may just need tightening, but I would replace the seal just to be safe as thecoolant can and will destroy your circuit board if its allowed to continue to leak on it.

Jan 15, 2008 | Samsung HCL4715W 47" Rear Projection...

1 Answer

Sony big screen tv not playing picture after 5 minutes or so


You have a bad picture tube, or perhaps a picture tube drive problem.. To see what is bad, remove the front speaker grill under the screen in the front. Remove the screws that hold on the board that covers the front. Insidfe this set, WITH THE TV SET UNPLUGGED< Locate which one of the tubes is the blue one. Gently pull off the board from the end of the picture tube and swap it with the green tube right next to it. The green tube is always the middle tube. If the blue comes up again, then the blue tube is bad and you will most likely be better off to buy a new TV set. If the green comes up as the bright one, swap back the boards, call a tech and tell them there is a CRT driver board , or an RGB drive problem. This should not cost you an arm and a leg to get repaired. Good Luck, and let us know how you make out with the repair of this TV set.

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1 Answer

Repair of my big sony screen tv


You have a bad picture tube, or perhaps a picture tube drive problem.. To see what is bad, remove the front speaker grill under the screen in the front. Remove the screws that hold on the board that covers the front. Insidfe this set, WITH THE TV SET UNPLUGGED< Locate which one of the tubes is the blue one. Gently pull off the board from the end of the picture tube and swap it with the green tube right next to it. The green tube is always the middle tube. If the blue comes up again, then the blue tube is bad and you will most likely be better off to buy a new TV set. If the green comes up as the bright one, swap back the boards, call a tech and tell them there is a CRT driver board , or an RGB drive problem. This should not cost you an arm and a leg to get repaired. Good Luck, and let us know how you make out with the repair of this TV set.

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1 Answer

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If the picture is all green and does not shutdown then is probably not the tube and you need to check the green output transistor witch is ussually located in the crt board in the neck of the green tube,you also have an IC that gives the colors then you have a driver and finally the output,(IC and driver rarely go bad but is possible),when you pull the board out of the tube make sure it comes out easy,do not twist the board because it might brake the pins in the tube(gun) and then we will have big problems, many times they secure the board to the tube with silicone and it needs to be removed or cut before the board will come out.Each gun has an output and the defective one should be replaced with an exact replacement.Check also the conections in the green crt board.Let us know if you need more information.

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3 Answers

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