Question about Samsung LA22A450 22 in. LCD TV

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LA22C450 MAIN BOARD PROB

BOARD PART No BN94-01713B PROBLEM PART NOT AVAILABLE HERE. THERE IS ANY SOLUTION

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I have a Hisense 50h5g 50" tv, I have sound but a black screen it passed the flashlight test so I do have a picture just no backlight Iv replaced the power, tcon, and main boards, still have same prob


If the back light is CCFl type; check and replace all CCFL lamps and back light inverter board.
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.

Sep 15, 2016 | Hisense Televison & Video

1 Answer

Hi I have Vizio TV mo­del E701I-A3 the prob­lem is I have audio n­o vedio but the scree­n dark navy blue plea­se help? Thanks


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/

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.

Sep 09, 2016 | Vizio Televison & Video

1 Answer

I have a LG 50LN5600 LED Smart TV w/sound no/pic Have replaced the power supply board and t-con board. Main board only one left and research says that this would not be a main board prob. Any help?


If the LCD panel back light is not lit you have a bad LCD panel. If the back light stays lit when the set is turned on then you almost certainly have a bad main board since you have already replaced the power supply and T-con.

Aug 17, 2015 | LG Televison & Video

1 Answer

Stuck on Standby(red light only. flickers when pressing buttons on the RCU)


Fault to its main board. Short circuited component/s at it. Contact any service technician; or the authorized service center. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. http://electronicshelponline.blogspot.com/ . In most cases, the main board might have to be replaced. If so, a software [firmware] update too might be necessary.

Apr 08, 2015 | Samsung LA22C450 LCD TV

1 Answer

POWER SUPPLY DAMAGED


It is available. Contact the authorized service centre for Samsung.
Gopakumar Gopalan Google

Mar 27, 2014 | Samsung LA22C450 LCD TV

1 Answer

LCD PANEL


To wipe it out, you have to disassemble the panel. It is a skilled service work. Contact any experienced service technician.

Feb 07, 2013 | Samsung LA22C450 LCD TV

1 Answer

Fortory pin numbers


The default PIN number is "0-0-0-0

hope that helps

Fred

Jun 18, 2012 | Samsung LA22C450 LCD TV

1 Answer

Phillips 27ps55s121cc wont turn off w original remote or tv menu is this board level prob?


Yes, the entire main board used to be (you would have to ask Philips) available but we gave up (where I work) ordering them as too many were damaged or destroyed in shipping.

Board level repair:

check fuse
check power supply voltages
check for short to ground at horz. output transitor

etc

Mar 17, 2012 | Philips Magnavox MS3652S 36" TV

1 Answer

Our Polaroid FLM 3232 has worked for four years and now all of the sudden it won't turn on....seems to be no power supply...the red standby light is not illuminated....please help we love this tv!


I hate to say it, but it is prob the main board that went bad. (the board where all the inputs get plugged into) It is possible that it might be the power supply. One thing to check is to make sure you have 25v coming from the powersupply board to the connectors that plug into the main board. If you do have 24-25v than you will have to replace the main board. If not than the powersupply.

Dec 26, 2010 | Polaroid FLM-3232 Television

1 Answer

How do i fix a Blackout problem with 42inch plasma tevion tv? Or is there a firmware available to fix this problem.


Not firmware prob,95% of the time it ur main video backlight board it dead need it replaced.10% of the time it the power prob.must replaced the power supply board.

Oct 22, 2009 | Televison & Video

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