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Bad power supply on tv - Televison & Video

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Please respond to this same post with your model number and I will help you locate a power supply but need the model number of your set.

Posted on Aug 15, 2008

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Posted on Jan 02, 2017

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Then i turn my rca tv on manually it wont come on


How old is the RCA TV. Is it an LCD Projection model or the older CRT (3 tubes - Green, Red and Blue) type projection model?
If LCD it could be a bad lamp or power supply. If a CRT it could be one of the Tubes is bad or again a bad power supply.

Nov 09, 2014 | Televison & Video

1 Answer

Samsung 1080 picture glitching on model # HL61A750a1fx2c Versionre01


If it's all colors (Red, Blue, Green) doing the same thing at the same time, there are (unfortunately) multiple possibilities:

1) the AC to DC power supplies
2) the LED Driver Board
3) DLP driver, or DLP itself

The most likely problem is the DC-DC power supplies, which are known to have capacitors that go bad after several years of operation.

Due to this, there are many sources for either re-capacitor kits (DIY), or rebuilt power supplies with upgraded capacitors.

WARNING - Dangerous, and even lethal voltages are present inside your TV set. Do not attempt this unless you are trained in these kinds of repairs. Leave the TV unplugged for several hours (or preferably a full day) before attempting such.

DIAGNOSIS for bad capacitors: If you inspect the large capacitors on the power supply boards, and they are not totally FLAT across the top surface (if bulged at all), then you need a new power supply or new cap's. Likewise, if there is any leakage from the capacitors (usually a light-yellowish crusty appearing substance), they are BAD.

Sub-power supply:
BP96-01726B ASSY PCB P-SMPS Aquamarin,LED DLP TV,DC2

Main power supply:
BP44-01001A SMPS-DLP TV PN082DPS-VF(A),AC/DC,90V-132

A quick Google search for these part number (BP96-01726B & BP44-01001A) will reveal many sources, and pictures to verify it's what your set has.

1_12_2013_7_27_32_pm.jpg1_12_2013_7_27_48_pm.jpg

Jan 12, 2013 | Samsung HL61A750A 61" HDTV

1 Answer

Why is tv shutting itself down then turning back on


you have a bad capacitor on your power supply there only a couple dollar apiece you open back up your tv to the power supplies and you could solder them in. These bad capacitor would be swellen.

Jul 07, 2012 | Televison & Video

1 Answer

How do i fix my sony grand wega tv kf60xbr800 with 6 blinking lightshow do i fix my sony grand wega tv kf60xbr800 with 6 blinking lightshow do i fix my sony grand wega tv kf60xbr800 with 6 blinking...


Good day!!!

6 blinks its the clear indication that you have bad power supply board..


That problem is usually cause of faulty capacitors on the power supply board..

Just follow this instruction to fix your TV..

1. Open the back cover of your TV.
2. Look at the power supply board..Its normally connected to the power cord..
3. After that,,try to look at the actual image of capacitors if it is bulged on the top so that you can easily determine the bad capacitors..
4. After that,,try to replaced the bad capacitors using soldering iron and soldering lead..replaced the capacitors only with the same type ratings and value..
5. Some of the capacitors not bulged so its better if have a capacitance meter

Nov 20, 2011 | Sony Grand WEGA KF60XBR800 60" Rear...

1 Answer

Faulty power supply


Hello.
There is no separate power supply in your TV.
It is integrated into Deflection Board.
I would recommend you have real professional diagnose your TV, power supply section is rarely goes bad, it could be convergence or some other issue.
Regards.
Russ.

Dec 01, 2010 | Mitsubishi WS-65807 65" Rear Projection...

1 Answer

Hello :i have a bad projection tv Symptom :power


sounds like my 32", its going to be one of three things,
Convergence board,
if it is this you will need to order one online and install it yourself, lots of guides online to help you with this process,
High voltage power supply,
again this can be purchased online and directions are available, if it is the high voltage supply, the tv will act like it wants to come one and maybe click a couple of times
Low voltage supply,
the tv will do nothing, now if the tv does nothing, the low voltage supply isn't the only possibility, but the most likely, check fuses on this one as they are easy

Jun 25, 2010 | RCA D52W20 52" Rear Projection HDTV-Ready...

1 Answer

37 INCH LCD MAGNAVOX TV WILL NOT TURN ON. MUST BE


This problems,very common in LCD tv,after the tv was in used about a year or two.The new technalogy LCD tv don't handle heat very well,not like the old CRT Tube Tvs.The power supply board tend to have bad capacitors componnents leakage,that bulges up it top or puff up gases escape,that why it take times or couples pushes to the power botton to turn the tv on.U know basic electronic's,and have soldering tools and solders?Take the tv aparts,check for these bad capacitors,that bulges,puff up in the power supply board and replaced them,than ur power will work normal again.Or tries Websites like Shopjimmy.com,Ebay.com to buy a whole refurbish power supply board for the replacement.

Apr 29, 2010 | Philips Magnavox 51MP392H Rear Projection...

2 Answers

Berndulay@yahoo.com


Accroding to your model number:(KV-...) In sony tv units power supply porblems is very low unless a power surge.
You have to check these things.
1. Stand by 5V available or not
2.If stand by 5V available press power and check B+ is getting or not
3.If B+ available check Horzontal oscillation
4.May be H-out transistor or video amplifier is bad.

Oct 14, 2008 | Sony Grand WEGA KF60WE610 60" Rear...

5 Answers

I have symphonic tv model sc3918 it will turns off after 5 or 10 second being on


This can be a power supply problem, if you have knowledge on electronics try to check the power supply, but if not better ask for someone who knows electronics to check the power supply.

Good luck.........

Aug 24, 2008 | Televison & Video

1 Answer

Toshiba 50H71 Projection TV


I would check the power supply and the tuner section. This sounds like the low voltage powers supply is going bad or that the tuner section might be going bad. Does the picture fade to snow? Also I would suggest that you let a TV Technician take a look at the TV to determine what is happening. Most likely it is the power supply.

Thank you,

I hope this helps,

Shuttle83

May 27, 2008 | Toshiba Televison & Video

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