Question about Hitachi 46GX01B 46" Rear Projection Television

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What are Bad Power Supply Capacitors? Are they hard to find and or replace?

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Cary Farah

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They are round cylinder objects where the power comes in, you have to be able to solder and desolder.

Posted on Dec 05, 2007

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Replaced 3 capacitors for start up issue, now have radom with vertical lines


You will need to replace all the capacitors in the output side of the power supply. It is possible you have other bad capacitors that are not bulging at the tops. The power supply generates a voltage used by the the video processor on the main board. If this voltage is out of whack, it can affect your video. I would recommend you check all power supply voltages for accuracy and ripple.

Jun 18, 2013 | Samsung LN-T4665F 46 in. LCD Television

1 Answer

TV comes on, but, no picture, no sound


Good day!!!!


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

Jul 23, 2012 | Toshiba 50HPX95 50 in. Plasma HDTV

1 Answer

Code 2-16


Good day!!!


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

Jun 25, 2012 | Televison & Video

1 Answer

STAYING ON STAND BY NO PICTURE OR SOUND


Good day!!!


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

Jun 20, 2012 | Televison & Video

1 Answer

I have a mitsubishi wd-62525 the power light keeps blinking, and i can't get picture. i unpluge it than want 2min than it stop blinking and i can turn to tv on and get a picture than after 30-40mi


Good day!!!!


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

Jun 06, 2012 | Mitsubishi WD-62525 62" Rear Projection...

1 Answer

Horizontal line through screen and low screen lighting


Hi sir!!!

Actually horizontal lines base on my own experience will cause of bad/faulty T-con board and the low screen light (back-light) cause of bad inverter board or weak cold cathode light when the 2 parts are both indicate faulty (inverter and T-con) the possible problems is on the power supply board..Because its very rare to LCD having 2 or more boards fault..

If that is the case..You need to check the power supply board (it is usually connected directly to the power cord)..Power supply is very hard working parts of all LCD TV so that this board is a commonly problem of all flat panel TV..This board is the one that responsible to supply DC voltage such as 5vdc,12vdc,24vdc to all the boards to function it properly..If the power supply board having voltage drop on there output all parts are not properly works until time comes that the TV will not turn at all..

Try to inspect the power supply first..Look at the power supply board (usually connected next directly to power cord).
Try this numerical steps.
  1. Open the back cover.
  2. Locate the power supply board.(usually connected next directly to power cord).
  3. Inspect the power supply board for any bulged/dome capacitors.
1_17_2012_4_14_43_pm.jpeg
4. If you found any bulged capacitors like the picture above kindly replace it with the same value (example:1000uf/35v means 1000microfarad/35volts)..
5. When you replacing the capacitors make it sure that you memorized the exact position of it because capacitors having polarity.Wrong polarity can cause more damaged.To make it sure please take a picture of it to avoid mistakes..
6. After replacing bad caps if any..Try to power it on again..

Hope it helps..If not please let me know..

Just keep on touch to me to fix your TV..

regards,
chester.

Jan 16, 2012 | Sceptre X46BV TV

2 Answers

Has power but won't turn on


Make sure that it does the same with other PC first.
You may have problem in the power supply section, look for bad caps first, the problem can also be bad lamps (I had to fix one today with bad lamps assembly). This unit is really hard to disassemble, the switch assembly is attached to the front section, so be REAL careful when the front and the back section come apart, see pictures here: http://s807.photobucket.com/albums/yy352/budm/Westinghouse%20LCM-22W3/

Feb 28, 2010 | Westinghouse Electric LCM-22W2 Monitor

2 Answers

LG L196WTQ monitor just quit working. won't turn


Look in the power supply section first for bad caps, post back what you find inside, pictures will help a lot to guide you through, see example of failed monitors due to bad caps: http://s807.photobucket.com/home/budm/allalbums

Jan 24, 2010 | LG L196WTQ Monitor

1 Answer

T.V. was on several minutes later the sound and picture disappeared. Tried troubleshooting in manual but nothing worked, what should we do now.


The unit senses a fault in the power circuit. It is either in the power supply unit (PSU) peripherals or in the PSU itself.
  • One of the peripherals might be loading down the PSU causing it to shutdown.
  1. Check the power input terminals of the peripherals for any short circuit using an ohmmeter.
  2. Replace any part found to be causing the issue.
  • The power supply unit cannot run under load and shuts down. It is usually caused by bad capacitors.
  1. Check the PSU board for any bad capacitor.
  2. Replace bad capacitors with the same specifications.
  3. Make sure to replace the capacitors in correct polarity.
  4. Bad capacitors look like these:3a72a3c.jpg17dffa0.jpg

Nov 05, 2009 | Televison & Video

1 Answer

Have lcd tv samsung. Had a power surge now tv will turn on but no picture or sound. What could be the problem?.


If you get no standby light or error blinks, the power supply board is bad. Most likely the power surge will take out some capacitors on the power supply. Replace the power supply board to solve the problem. This is a common failure caused by a power surge.

Note: If you are looking to do it the cheap way, you could try looking for bad capacitors (visually inspect for ones that look "bubbly") and replacing just those but it is not guaranteed to fix the TV as the power supply could have other issues and just cause the capacitors to bubble again.

Oct 08, 2009 | Televison & Video

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