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DVD967B - I need a manual for the pc board - ROCO-V22A.POWER I NEED TO REPLACE 2 CAPS

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Please try if this link helps if not post a query with your need:


www.sansui.owner-manuals.com/???SANSUI-manuals.html

Posted on Sep 29, 2010

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My vizio Model SV470M will not turn on the power indicator light is not on either.


First, are you capable to open and repair this?
Being a power issue, we work "out to in". Plugged in wall and Power is not out in the neighborhood are too obvious to ask. Sooo... next .. Once back cover is off, look for and test the fuse on the PSU (power board), also look at this PSU board and see if any caps (capacitors) are bulged or popped. Both of these will kill a board, and usually caused by cheap caps or power surges from the power grid. You can replace the fuse easy enough, but you need good soldering skills to do the caps, and a supplier for the new caps. REPLACE ALL CAPS, not just the obvious bad ones. Otherwise, replace the whole board. Since you mentioned a "No Power" issue, this should fix it. Transformers are not too easy to test, (trans may be "browned" IE: burnt) and chips.. forget it, for both, replace the board. Hope this helps

Jun 09, 2014 | Vizio SV470M LCD TV

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No Power


Capacitors are blown on the PSB-power supply board inside the set. You can do this fairly cheaply about 20 bucks and that includes a solder iron kit with Flux from radio shack and the thru-hole caps. Caps on the PSB should be completely flat (X)-cap view from top. Not broken at all. Best to replace all the caps on the PSB as some can pop and leak from the bottom as well. Try and get caps only 2V above what you currently have in there as larger ones will be hard to seat and will produce too much voltage and heat and can explode. American made caps or Japanese caps are the best way to go. The China made caps are infamous for going out.. If you don't want to solder the caps on yourself you can pull the board out and take it to a PC repair shop. Then there is always buying a refurbished one online. You need the Parts Rev number off the board to get the correct match.

Mar 18, 2014 | Panasonic Televison & Video

1 Answer

My hp 42" PL4260N has sound but no picture. I


I had a similar problem with my 42 in Philips LCD HDTV.



Here was the problem. My Power Supply Board had several bad capacitors. I opened my TV (warranty was expired of course) and found four bulged capacitors. Many electronics companies were sold capacitors that failed in 2-5 years instead of 10-20. The capacitors fail prematurely due to a lack of preservatives. Unfortunately, they were installed in all sorts of devices and cause a wide range of failure problems.


Here are some options for you.

1. Have it fixed by a professional

2. Open your TV and find PSB. Check for faulty caps. If you find some (bulged or leaking) bad caps replace the entire board.

3. Remove and then replace individual faulty caps. This takes some soldering skill.

Caps are inexpensive and if you can take care of it yourself it will save you hundreds.


I have a tip/tutorial on this site that may also help. It gives step by step instructions for replacing caps on PSB #715t2432-2. If this is your board you are in luck. It's called: Fixing the Philips Turns/shuts off on its own problem.


Hope this helps and Good luck.


Kaufman605

Dec 11, 2010 | HP PL4260N 42 in. Plasma HDTV

1 Answer

The LCD Blinks 10 times Need the service manual or tip on what has gone wrong. Power supply is generating 5v


I had a similar problem with my 42 in Philips LCD HDTV. Your power supply should be putting out more than 5 volts

Here was the problem. My Power Supply Board had several bad capacitors. I opened my TV(warranty was expired ofcourse) and found four bulged capacitors. Many electronic companies were sold capacitors that failed in 2-5 yearsinstead of 10-20. The capacitors failprematurely due to a lack of preservatives. Unfortunately, they were installed in allsorts of devices. Here are some options . 1. Have it fixed by a professional 2. Dig into your TV, find PSB, Check for faultycaps. If you find some(bulged orleaking) bad caps replace the entire board 3. Remove and then replace individual faultycaps. This takes some solderingskill. Caps are inexpensive and if you can take care of it yourselfit will save you hundreds. Hope this helps

Dec 10, 2010 | Televison & Video

2 Answers

My samsung plasma suddenly made clicking noises and tuned off


I wish to tell the world about the simple cheap fix for your plasma! . Please let me know if I helped. I have a 50" Plasma that deicded after a year it didn't want to turn on anymore. It just blinked red LED. Which made me see red! It took me a year to find this inexpesive fix I hope this information will be helpful to you.... These are spendy items and none of us were thinking that after a year (seems like a scam to me) the TV just won't turn on anymore.... Then they say your no longer covered under warranty or you are and they send you to some repair shop 1-2 hours away and always and I mean always tells you the part is on back order.

Lukster is right it is a power supply problem. However you don't need a new board nor do you need to pay someone a ridiculouse abount of money to fix this. I fixed mine for 40 cents.

You more than likey have bad capacitors.
Unplug the TV from power. Remove the back cover. (some models require a star srewdriver) You power supply board is right in the center. A bad cap is bulgded or raised. A good one is flat. caps have an X on the top of them. More than likely you will see a bulding or just straight raised edges on the X on the top of the caps. Cap 3300uf 10v is the ones you are looking for. Once you find them replace them with 3300uf 16v caps. If one cap is not raised replace it anyway. These caps need to be a higher voltage that why the tend to pop. 16V is plenty, don't go any higher in voltage than that.

The caps need to be soldered on. You have 2 options do it yourself or unplug all the wire harness from the board then unscrew the board take your power board (dont forget your new caps) down to a pc repair or tv repair and have them solder them on for you. It will take less than 10 minutes. I do recommend putting the board in an anti static bag. You can buy these caps at radio shack or buy them on ebay.

After you get it repaired replace your board plug all power supply wire harness back onto the board (I recommend numbering the wires as you remove them), replace the back panel cover. Plug her in and fire her up. and BAM it works. then turn it on and off a few times in complete amazement at how simple and inexspensive this was to do. Then get angry cause your repeated calls to tech support was wasted breath.

Semper Fi

Dec 16, 2008 | Samsung HP-R5072 50 in. Plasma HDTV

2 Answers

Panasonic Plasma TH-42PX60U - power light blinks 12 times


Bad capacitors...! Remove rear panel cover from tv. Most require a star screwdriver. Look for bulging caps in power supply board. (3300uf 10v ) caps need to be replaced with 3300uf 16v. Identify the bad caps.... Caps are bad when they are bulged/bulged and raised. A good Cap is flat X top not raised or buldged. I have pics of what bad caps look like on these boards. Email me if you would like to to see them. Caps cost abywhere from 1-2 dollars or you can buy them in lots of 10 or 12 on ebay for around 8 bucks. Caps need to be soldered on. Do it yourself (if confortable) or take it to a tech/pc repair shop in your local area. Do do that unplug all the wire harness from the board and unscrew the boarda nd take to your teck to solder on the new caps.

You can fix this for about 20 bucks if you have someone else solder or 40 cents if you buy the caps on ebay and replace the 2 bad ones yourself. If one is bad and the other is not replace them both.

The caps go bad because they need to be a higher voltage. 10 insn't enough..... 16 is plenty and don't go any higher than that.


Good Luck

Gunny

Sep 24, 2008 | Televison & Video

1 Answer

Mitsubishi WD-62525 Red Status Light After Cap Replacement


which caps did you replace? As the normal repair for the first generation dlp is to replace the (4) 1000 uf caps. the (2) 2200 uf caps and the (2) 3300uf caps on the power pwb when you get the 34 error code.

Sep 09, 2008 | Mitsubishi WD-52525 52" Rear Projection...

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