Question about Samsung PCJ522R 52" Rear Projection Television

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No Blue My TV has no blue. The blue bulb lights ups. I connected the blue drive circuit board on the green bulb, still has green picture. I connected the green drive board unto the blue bulb still no blue. I suspect a bad blue bulb. I confirms video signal levels thru the blue drive board are similar to the red and green drive board with an O-Scope. Is there anything else to to check? Thanks

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Nope you did it! Its the blue tube. Go to http://www.samsungparts.com and enter your model number and look up the tube. I did one last month for someone at techlore.com Are you the same person? Oh well look it up but do you have the proper equipment to replace this tube, as its very dangerous to handle!! They have a tendency to implode and then explode if not handled right.

Posted on Sep 02, 2006

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Posted on Jan 02, 2017

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Hitachi le55a6r9a sound but no picture


Back - light problem. Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis. To some model sets; especially LED back-lighted types; the back-light inverter circuit will be part of the main power supply board . In such cases, the power supply board might need replacement. To some models sets, the back-light inverter and SMPS section circuit will be integrated at its main board itself. If so; the main board should be replaced. To some models of sets, all these section circuit will be integrated at its main board. If this is the case, you have to replace the main board.
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Jan 23, 2017 | Hitachi Televison & Video

1 Answer

HCL4715W Green Color intermittently projecting


It sounds like the common problem with this set. It is an intermittant picture tube, or there is a loose connection on the green drive board on the green picture tube. Try lightly tapping all around on the green drive board while the set is on and see if you have any change. BUT BE VERY CAREFUL! Lots of high voltage on the board. Also use a plastic or wooden device to do the tapping. If you do great, you know you need to resolder the connections on the board or clean the CRT socket on the green drive board. If there is no change, I would bet the green CRT is on its way out. But try tapping the green drive board all over as I said before, that is a very very common fault with these types of TV sets. Good Luck

Aug 16, 2007 | Samsung HCL4715W 47" Rear Projection...

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What to do when you only have Green on a CRT Projection TV.


If you have a picture, but only in green on a 3 crt projection TV, I would try turning up the drive for the red and blue guns. They have probably changed over time and red and blue have lost drive and need a boost. Green makes up 70 percent of the picture compared to red and blue so the drive would not have to drop much to lose red and green but still have green. Keep in mind that this does mean that the CRTs are dying and may not have too much time left.

To turn up the drives first remove the back cover on the bottom half of the machine. Be very careful as you will have to work on this unit live. Do not touch anything other than what I tell you and keep one hand in your pocket whenever possible.

First look at the space above the main circuit board. Somewhere across the beam supporting the CRTs you will see a square box with 6 controls (shafts). You can locate the box if you follow the wires from the flyback to the box. The flyback is located on the power board and produces the high voltage. It will have 4 large red rubber wires coming out of it. Three go to the focus divider block (the box in question) then they go on to the crts (red, green, blue).

Once you locate the focus divider look at it closely. The focus controls are on top and the drives are on the bottom. They should be marked red, green and blue. You want to turn up the red and blue. Tune a picture with as much black as possible. While watching it turn up the red until you see a red tint or streak then turn down until it just disappears. Do the same with the blue. You may want to touch up the green also for good color balance.

If the set is working OK and the CRTs have enough drive left, your picture should look normal.

Thanks for using FixYa.

hardrocko

on Sep 22, 2010 | Toshiba 50H81 50" Rear Projection...

1 Answer

What causes the picture to have a green tint


there are 3 color cathode in your TV red,green,blue cathode.The red and blue cathode might not working in your set that is why you have a green screen. Open the back cover of your TV you can immediately see the 3 cathode lamp at the back. Clean the lamp first using a clean clothe. Power up you tv and see whether the 3 lamps are lit. If lamps do not light up,check the circuit board where this lamp is connected re-solder all the components in this lamp. There is also an individual screen adjustment for the lamps it is located at the front panel and labeled RGB screen...try this first and let me know how it goes..

Apr 16, 2011 | Zenith E44W46LCD 44" Rear Projection...

1 Answer

Image is green color............what is wrong with the tv?


It means that the blue and/or red picture tube (bulb) is not working properly. It could be the tube(s) or the circuits that drive the tube. My money is on the circuits.

Apr 22, 2010 | Philips Magnavox 51MP392H Rear Projection...

1 Answer

I have no picture coming out of my blue picture tube


ok 2 things could be wroung one is u have a bad crt board one way to find out is swap the blue crt board with the red crt board and see if the blue comes up and now u have no red. now u can not swap it with green the green crt board is allways by it self noe if that does not work and u still have no blue it could be the picture tube or something from the video board that is blaking it out and without a scope u cannot trace it but if u are lucky it will be the crt board hope this helps u

Sep 05, 2008 | Philips 55PP9401 55" Rear Projection...

1 Answer

Tv Problem


check the circuit board for possible loose connection,try to resolder the horizontal circuit and the crt board.

Jul 23, 2008 | Mitsubishi WD-52525 52" 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.

Nov 11, 2007 | Sony KP-46WT500 46" Rear Projection...

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.

Nov 11, 2007 | Sony KP-46WT500 46" Rear Projection...

2 Answers

Green is not being displayed on my TV


If you have experience troubleshooting solid state TV sets, you should be able to tell by a couple of voltage measurements if its a problem with the picture tube or the drive circuit. Simply take the multimeter and compare the base voltage of the green drive to the red or blue drive transistor. If the voltage is about the same, measure the collector of all three. if the green voltage on the collector is higher then the others, then theres an open between the drive transistor and the crt element. this could be an open resistor, a bad solder connection on the crt socket, or an open picture tube element. If theres no voltage there then your going to have to trouble shoot the drive circuit.

Sep 08, 2006 | Toshiba 32AF41 32" TV

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