Question about Hitachi 51SWX20B 51" Rear Projection Television

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Circuit boards where can I buy a circuit board for my tv? need the right side looking from the back

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United Electronic Distributors has a GREAT Selection of all TV parts.

Posted on Oct 02, 2008

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Posted on Jan 02, 2017

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Philips flat screen TV, model 47PFL5432D/37 46" Problem one: Have to turn on and off several times to get it to come on. Problem two: screen darker on one side and screen flutters/flashes.


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. http://electronicshelponline.blogspot.com/ To some model sets; especially LED back-lighted types; the back-light inverter circuit will be part of the main power supply board [SMPS]. 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.

Jan 14, 2017 | Philips Televison & Video

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How to fix Sharp LCD model # LC-32SB23U flashing green power light and check and...


If the green power light keeps flashing on and off every second and tv will not power on unplug the tv for 5 minutes, then try this. Keep holding the VOL+ and CH- buttons down while you plug the tv cord back into the wall ac outlet till you get sound and picture for a second or two. You should be able to turn the tv on and off with the power button now. Next turn the power button off and unplug the tv for a few seconds and then plug it back in and turn the power button back on. Watch the screen and see if the sound and picture comes on, best to check in a dark room to see better, if sound stays on and picture comes on a few seconds and back off you have a bad CCFL backlight lamp in the LCD panel. This tv hads (10) CCFL lamps part # RLMPLA029WJN1 cost $15.93 at www.partstore.com or $19.49 at www.encompassparts.com in it and if one is burned out it will not let the tv picture be powered on till it is replaced. To check and replace the CCFL lamp you will have to unplug the ac cord from the tv back and remove 10 screws holding the back on. With back removed unplug the wire plug on the power button circuit at top left side of the black LCD screen trim, remove 4 screws holding the top of black trim, lay speakers off it, and release trim clips, (4) at top and (2) at bottom with a flat screw driver, and lower the trim to unclip the LED circuit board at bottom left side on the trim, leave the wiring pluged into this LED circuit board . With trim removed, at top of LCD panel remove the (2) PC ribbon wire clips with thumb nail by lifting up on it to release the flat PC ribbon wire. Lay the tv back on a soft pillow with screen up, and look on the LCD panel front for and remove the (10) silver screws 1/2" long with an arrow mark beside them. Do not remove any gold colored screws or any without marks. The LCD panel screen can now be lifted off, lift the backlight plastic thin sheeting and thick sheet off to see the CCFL lamps. Stand tv up and plug the ac cord back into the power supply inverter circuit board and plug the power button plug wire back in its circuit board on the LCD black trim panel, and power the tv on while looking at the CCFL lamps. If the lamp is dim or burned out, take the (2) white plastic covers off the side ends of the lamps with a flat screw driver and unclip the lamp to replace it, Check the bad lamp sockets, part # QSOCFA003WJZZ, by putting a good lamp in it and if it lights up the sockets are good and the bad lamp was the problem. If all the CCFL lamps do not light up, unclip the top lamps and move them to differant sockets to the center and the center lamps to the top, if the lamps do not light up, then it is a bad power supply inverter circuit board the ac cord plugs into, part # RUNTKA448WJQZ , cost about $160.00 for new one or less if you buy a used one on www.ebay.com , replace it. If the power supply inverter circuit board is bad to replace it, unplug the (2) wire plugs at the top left side on the circuit board, take (3) screws marked with an arrow out, use a pair of sharp nose plyers and squeeze the plastic white tip holding the circuit board on the right side careful not to touch the high power circuit backlight plugs on the right side of the circuit board. Pull board straight out to unplug it. Replace with new board and tv should power on now.
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on Sep 28, 2011 | Sharp Televison & Video

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Hi My Toshiba TV 46L5200U model has half of the right screen darker than the other side, the other left side looks just geat, what could be wrong? Could it be a problem with the Led Bar Strip?


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. http://electronicshelponline.blogspot.com/ To some model sets; especially LED back-lighted types; the back-light inverter circuit will be part of the main power supply board [SMPS]. 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.

http://electro-medical.blogspot.com/

Nov 22, 2016 | Toshiba Televison & Video

1 Answer

Right have of led tv is darker


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. http://electronicshelponline.blogspot.com/ To some model sets; especially LED back-lighted types; the back-light inverter circuit will be part of the main power supply board [SMPS]. 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.

Nov 13, 2016 | Samsung Televison & Video

1 Answer

Hi,I've got a Samsung 46 inch led TV and the right half is darker than the right,is this able to be sorted.


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.
http://electronicshelponline.blogspot.com/
To some model sets; especially LED back-lighted types; the back-light inverter circuit will be part of the main power supply board [SMPS]. 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.

Aug 13, 2016 | Samsung Televison & Video

1 Answer

Panasonic viera 42E30D led tv pannel one side black


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.
http://electro-medical.blogspot.com/
http://electronicshelponline.blogspot.com/
To some model sets; especially LED back-lighted types; the back-light inverter circuit will be part of the main power supply board [SMPS]. 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.

Feb 28, 2016 | Panasonic Televison & Video

1 Answer

The philip 50inch plasma tv i own has ambilight on both sides of the set. the light on the left side of the tv no longer seems to be working. is it simply a matter of changing the light on the tv...


you must replace the circuit board that illuminates display....you will see two(2) boards that look alike...take back off tv and you will understand.....1 of the circuit boards is bad and must be rebuilt or replaced!!!ckt boards are on the sides of TV...only 1 of them bad they both look alike . gl

May 19, 2010 | Philips 50PF9631D 50 in. HD-Ready Plasma...

1 Answer

My power cord fell off. Took off the back of the


there is a small board with a small transformer . the plug is located next to that small transformer. if the cord originally came from the right hand side if you are looking at tv from the back. the plug is on that right board. if the tv cord came from the left side, the plug is located on the main board in the front of tv. the plug in both situations are the same, it is white in color and has 2 or three pins sticking straight up.

Nov 15, 2009 | Sony KV-32FS13 TV

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