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Need schematic for inverter board? trying to figure out values of capacitors i need

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There are no manuals for Vizio. Capacitors have their value and voltage rating physically on them. ect; 1000ufd / 35 volts, get the picture, easy.

Posted on Apr 22, 2010


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I need a schematic for my samsung tv power ciruit board BN44-00438B trying to find the value of a little blue capacitor that fried up.the capacitor is placed on CP820..

I dont have the schematic for this board but I hope this info work. The value of the capacitor (CP820) is 221k 1kv. Heres a picture and a conversion chart. You can see the conversion code from pf to mf.

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Lcd tv that when on for 10 min the snd will stay on and the pix will go off could it be the inverter?

If it is the inverter you can still see the image when you shine light dirrectly on the screen when it is on. If you have no image present then it is not the inverter. If it was the back light the picture color would take on a yellow hue before it failed.
It is not the power supply or you would not have anything. I am betting that it is the timing control board.
Dont bother looking for capacitors that might be bad, although it is a good idea, you need to know what a capacitor is.

Jul 18, 2012 | Televison & Video

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Iam trying to find the value of a capacitor which is damaged on the GPU board for the following product. Nvidia 9800GT 1GB graphics card. The component is situated at the top right hand side of the GPU...

1) Whatever company that made that Nvidia 9800GT graphics card, isn't going to produce a schematic for the general public.
(EVGA, VisionTek, Galaxy, Sparkle, BFG, etc.)

They paid big bucks to Nvidia for the GPU, the schematics, and all licensing fees.

2) If you indicate that you believe most of the capacitors, (Radial Aluminum Electrolytic Capacitors), are of the same values, capacitance, and voltage, then remove another one of them, and test the capacitance.

Multimeter set to OHM's. An economical unit can be purchased for around $5 to $12.
Most auto parts stores carry them, as well as a multitude of other stores.

3) The Radial Aluminum Electrolytic Capacitors you are looking at, have the values printed on them. They are just in the capacitor manufacturer's code.

Page 2 of the article starts with the identification of the markings.
Page 3 dealing with capacitors manufactured in Japan.
Page 4 deals with capacitors manufactured in China, and Taiwan.


May 30, 2011 | Computers & Internet

1 Answer

Black no sound on lights up

The inverter board is not lighting the screen. In some the cases the power supply is responsible for lighting this. Another problem, could be the inverter itself. As to say the starting resistors in the inverter board have changed values. The capacitors in the inverter board, could, as well, be bad! Thanks for asking and show a few hands of support!

Mar 20, 2011 | Sanyo DP32649 31.5 in. TV

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My samsung 940b it has a clear bright screen ( as normal ) just for 2 seconds then the screen turns dark but you can see very very dim Window logo.Turn off the power ( does not matter for how long ) when...

Capacitors can be faulty even if they look OK. The problem is with the backlight inverter circuit. The actual backlight tubes are probably OK since the display lights for 2 seconds. Try changing any capacitors on the backlight inverter board even if they look fine, especially if they are low value ones e.g. 10uf. If this does not work then you will need to replace the inverter board. You can buy a universal inverter board from on-line sources such as ebay. You will need to determine the correct connections for the cables. The three connections you need are positive supply - usually 12V, negative - 0V, On/Off signal - usually 5V.

Mar 02, 2011 | Computers & Internet

1 Answer

Hi - we have a Sylvania LC320SLX 32" LCD. The tv turns on and works fine for about 5-10 minutes and then shuts off. I opened it up and didn't see any visibly damaged capacitors on the power board or...

The startup resistors on the inverter board have changed values. You may not see any problem just examining the TV boards. But the remedy in this case is to have the inverter board replaced. Thanks for asking and show a few hands of support!

Jan 16, 2011 | Sylvania LC320SLX 32 in. LCD TV

1 Answer

I need acer al 1715 inverter board schematic diagram so i can get the burning zener value any help please

That will have to be had by the manufacturer for the board diagram. You may get lucky with a search. Try calling the company itself and ask them for the schematic. Or go to search online for it keep looking it may be out there somewhere. This is what I found Click Here

Jan 08, 2011 | Acer AL1715 17" LCD Monitor

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Can i get a copy of the power supply diagram for samsung 204B syncmaster ,i replaced the capacitors that were inflated in the power supply and in the inverter but the backlight not turn on. i want to know...

jose54tony, Schematics would only be available from Samsung. Rarely do they let them out of there tight grip!! You may need to look at the smps board and inverter board to find bad transistors that may have also died (muerto) when the electrolytic filter capacitors failed. 12fixlouie

May 20, 2010 | Samsung SyncMaster 204B 20.1" LCD Monitor

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Inverter problem , prefer to repair the board not buy new parts

repairing lcd inverter is like repairing a hv circuit used for strobe lights. try to check first all electrolytic capacitors, then loose board solder, also occularly check both ccfl bulbs for breakage and burnt marks.. best is if you can download schematic diagram for it so that you may check also all semiconductors on the board.

May 01, 2008 | LG Flatron L1710S 17" LCD Monitor

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What kind of capacitors should i use to replace the 180uf 30v ones

Electrolytic capacitor usually blown up the top only in you can still reading the value in the body of the capacitor like the voltage and micro farad example 400V/33UF that's the value of the capacitor

Apr 15, 2008 | NEC MultiSync LCD1700V 17" Flat Panel LCD...

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