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Need to fix my circuit board on a LCD

My 46" LCD Samsung 1080p will power on but I do not get a picture. Had slight electrical surge. Opened the set and notice that the rectifier DP806 was fried. Where can I get a replacement one. also some of the sodering appears to have been broken but I'm not sure because I do not have a diagram. Any idea's where I can find one? Thank you!

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  • spikee1956 Sep 25, 2008

    my le37s73db does the same it powers up the standby light flashes slowly but flashes faster when the remote is activated it was fourteen months old when this happened did samsung care NO!!!


6 Suggested Answers

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SOURCE: The 'antenna in' cable hook up spins

I was a Tech for Vizio for 3 months I Have a couple board Brand new one of them in label Samung dtvs205ch201a 070705 IDT-LF

Let me know if that s what you looking for
my email is

Posted on Mar 01, 2009

  • 10865 Answers

SOURCE: I can't find the owner's/TV manual for Sharp AQUOS

Posted on Jun 04, 2009

  • 4 Answers

SOURCE: I bought my Sharp Aquos 46 LCD 1080p 60hz as the

dynamic is a set calibration , u want to go to user then u can set it.

Posted on Jul 22, 2009

  • 1 Answer

SOURCE: Same "clicking" problem with 46" Samsung LCD...does not turn on.

With any luck you will have the same problem asa the rest of us : blown power board capaciters , remove the rear cover {20 screws} look in the middle of the back of the set with the cover {5 screws} removed from the power supply . Now look to the upper right cornerof the board in the middle of the tv there may be 1 or several capaciters leaking from the X shape on the top , this be be your problem match up replacements but source units that have a higher max voltage than 10volts 7 get them soldered into the board . I repaired mine that failed at 16 months for $4 in parts & it took longer to remove the screws than it did to affect the repair. If you are not conifident about soldering on your $2000 tv then take the board to someone for the job to be done , I would not advise this as a first soldering job , good luck I can't belive how common this is Samsung needs to step up ......

Posted on Sep 17, 2009

  • 927 Answers

SOURCE: Which Replacement Power Board for LNT4665F Samsung LCD TV?

It would be a lot cheaper if you just replace the two caps that have gone bad. Just get a cheap solder pencil from the store and about an inch of solder and you are in business.
The Power Supply Board is the center Board (towards left) after you remove the back off the TV. Remove Board from TV with the 6-7 screws. Replace capacitors CM852 & CM853; 2200ufd 25volts.

Thaks for using FIXYA, BIG IRISH.

Posted on Jan 02, 2010

  • 1 Answer

SOURCE: Power Supply Board for SAMSUNG 40" LCD TV Model LA40R81BX

You'll find some Samsung power supply boards here :
but you have to open your TV first and find out model number

Posted on May 10, 2010

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Philips 46PFL5706/F7 46 LCD TV. When you turn it on you have power. The Philips logo appears for a second then goes away. Screen is black after that.

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 [SMPS]. In such cases, the power supply board might need replacement.

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I have a 46 inch lcd samsung flat screen. the picture will flicker.

when it flickers is it lines that go up and down or across the screen or is it flickering bewteen lighter and darker?

Aug 05, 2012 | Samsung LN46C650 46 Series 6 LCD 1080p...

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Screen went black/blank can hear sound no picture, cannot change source or access menu LN-S4692D

Your inverter circuits and/or power board need servicing.....

Either three fault scenarios are happening:

1. the inverter circuits are not producing AC ripple too the CCFL lamps that illuminate the LCD glass panel.

2. the power supply board is not feeding 24vdc - 12vdc sustain voltage too the inverter circuits. Meaning, no dc high voltage output from the power board.

3. The timing control circuit (LCD Board) has shorted switching devices or on-board memory has failed....which causes data/dc loss at the input which results in the inverters canceling load power (lamps). The sync data between inverter and LCD Board are absent. This will result in a 'NO LIGHT' condition on the LCD display.

Number 3 is a rare case, its usually #1 the inverters need servicing.....

Nov 10, 2009 | Samsung LN-S4692D 46 in. LCD HDTV

2 Answers

Whenpower is applied, TV clicks on and off, no picture.

there probably is ive had a similar problem i just opened mine up and replaced the power board fixed it but i dont at all recommend fixing your own tv take it to a pro :P

Aug 03, 2009 | Samsung LN-T4665F 46 in. LCD Television

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