Question about Sceptre X9G Komodo IV 19" Flat Panel LCD Monitor

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Replacing Capacitor on LCD Monitor

I wanted to know if replacing a 470uf 25v capacitor for a 470uf 35v on a LCD Monitor would be fine. Someone said it was fine as long as you're replacing it for higher voltage. I just want to make sure before I do that. thanks.

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I wanted to know if replacing a 470uf 25v capacitor for a 470uf 35v on a LCD Monitor would be fine. Someone said it was fine as long as you're replacing it for higher voltage. I just want to make sure before I do that? This trouble maybe power supply or inverter boards is defective.
first you can test the voltage of the multr,and then check which part is defective.From Wisiny.com can find those parts
if you have any question,please let us know email:service@wisiny.com.thanks,we sincerely hope we can help you!
you can also check this boards whether suit you:
http://www.wisiny.com/sceptre-lm004-power-supply-backlihttp://www.wisiny.com/sceptre-lm004-power-supply-backlight-inverter-for-x9g-komodoght-inverter-for-x9g-komodo

Posted on Mar 22, 2015

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I tried the whole cap replacment it didnt work but i did a lil hard wiring so i can get the backlights working while i find the root of my problem i really dont think its worth all the hasle got pics of what i did if you want email me for them (getty77@yahoo.com)

Posted on Jan 21, 2008

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That is good advice. Always replace with same or higher voltage rating. Also make sure it is put in the right way around.

Posted on Sep 22, 2007

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Aug 16, 2012 | Samsung SyncMaster 931B 19" LCD Monitor

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I have a Samsung Syncmaster 932b LCD monitor. When I turn it on, the screen just flashes on and off, as does the blue light around the power button. I read up online and found that the capacitors on the...


savato321, Most black screen lcd monitor owners don't have the smarts to open up their monitors to do a VISUAL inspection of the "switch-mode-power-supply/inverter supply!!!! You're good. Now you will need to know some stuff about electrolytic filter capacitors! First, the "uf" or "UF" means micro-farad! It is just a rating given to express the storage capacity of the device. Next is the voltage rating. A 16v rating means that the capacitor should never be placed in a circuit where the voltage will exceed 10 to 12 volts DC. Your 820 uf cap rated at 25volts will most likely be in a 12 to 18volt dc circuit. Now for temperature rating. All caps have a maximum temp rating. Most clock radios, stereos, will use 85 degree centegrade rated caps. Printers,PCs,monitors, will use 105 degree C rated capacitors. Never replace with lower specification units! You can GO up but never DOWN. If 1000uf 25v is all you can get it's OK. If you can get 820uf 35v units and they are not too big and they will fit on the board sure you can use them. I would stick with the OEM design voltage rating. Electrolytic CAPS are polarized!! You must replace them + to + and - to -!!! If you screw -up they will blow-up!! The wire lead closest to the printed STRIPE on the cap will be the negative and the unmarked terminal will be the positive. If you visit www.ccl-la.com/badcaps.htm you will get more info on recapping your SMPS. You can also watch some DIY videos at YOUTUBE for "lcd monitor repair" that might be helpful. Also visually inspect the SMPS/inverter printed circuit board for "COLD" FROSTY looking solder joints. They should all have near mirror finish to them. Let us know the name of the BAD CAPS you remove from your unit. You may even want to document with pics with a digital camera what you find. Well, good luck guy. 12fixlouie

Dec 24, 2009 | Samsung SyncMaster 932B LCD Monitor

1 Answer

LCD goes black after few minutes


I would suspect the capacitors on the power supply board. Other sites show that power up problems are due to the aluminum electrolytic capacitors on the power supply board being defective. Replacing the four 470uf 25v capacitors (470 micro farad, 25 volt) on the board usually fixes the problem. Sometimes also the two 1200uf 25v capacitors could be the culprit. I suggest changing them all. The price is about $7 for the parts online at Mouser electronics plus $7 shipping. I just fixed mine. I bought two 1200uf 35v capacitors, Mouser part number: 647-UPJ1V122MHD6 and four 470uf 25v capacitors Mouser part number: 661-EKY250ELL471MH2 These are slightly larger than the originals but still fit and they were in stock. You will then have to open the unit (relatively easy) remove the power supply board by removing four screws and disconnecting the connectors (Make a note of wire colors and where the connectors came from before removing). Then you will need to remove the old parts by desoldering them and then solder in the new parts (somewhat easy if you have soldered before)

Oct 09, 2009 | Sceptre X9G-NagaIV 19" LCD Monitor

1 Answer

Stuck in standby


There is a "reliability kit" sold for these which consists of 8 electrolytic capacitors for the power supply that may cure the problem. Other times more extensive damage to the switch mode power supply needs additional parts You can try replacing the 4 470Uf/ 35v and the 4 470Uf/ 25v caps.
Monitor Mike

Apr 16, 2009 | Televison & Video

1 Answer

Can I use a higher voltage capacitor


yes, its safe, if working volt is 35 and capacity is 470uf, thats fine.

Sep 10, 2008 | Philips HTS3450 System

1 Answer

6800uf/16v Capacitor?


You can use a higher voltage capacitors without problems its the value of uf that should remain the same. But sometimes you can use a higher uf like a 330uf can be replaced with 470uf but never go lower than the original value on uf and voltage. But you can safely use 6800uf 25v or 35v.

Jul 07, 2008 | RCA RT2500 System

5 Answers

Can changing 3 capacitors on motherboard solve my problem?


We had a power surge and my VL2018W LCD monitor stopped working... blank screen and flashing blue light.

I carefully opened up the back and found the power board (the one the AC plug goes into). There were about 5 electrolytic capacitors that were bulging (but not ruptured). There were 3 with the values listed by the original poster (470uF @ 25V) and 2 with 1000uF @ 10V.

I scrounged a couple of 2200uF@10V caps for the last two and bought 3 470uF @ 35V caps from Radio Shack (P/N 272-1030).

Luckily, the monitor came right back up and seems to be OK. It was out of warranty, so there wasn't a big risk.

Just increasing the working voltage won't do that much for you. If any caps are bad, just replacing them with the same value is good enough, but a higher working voltage won't hurt (usually means a bigger cap).

Good luck.

Rich

May 04, 2008 | Princeton Digital VL2018W Monitor

3 Answers

Acer Monitor 1706


I replaced the 470uf 25v capicitors and this fixed the problem. I had 2 monitors exactly same with the same problem and it fixed both of them.

Apr 21, 2008 | Acer AL1706AB LCD Monitor

5 Answers

Monitor Blinking


hello guys

I had the same problem. My LCD ViewSonic VX 924 has been blinking

For repar it i changed the following capacitors : 100uF/400v
330uF/25v and 330uF/35v

if that always flickers you can also change the two 470uF/25v capacitors
The link for a pic Alime and Capacitors
http://img25.imageshack.us/my.php?image=alimefsp0351pi01.jpg

DO NOT TOUCH NOTHING D'OTHERS ANS DISCONNECT ELECTRICITY CABLE BEFORE PROCEEDING

Apr 08, 2007 | ViewSonic VX924 19" LCD Monitor

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