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Power supply problem. Damage STR F 6229,

Power stays on stanby mode. Suspect that STR F6229 is faulty. Needs a equivalent replacement part for the STR F6229.

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My china crt tv uses str w 6554 but has a fault in power when you fuse it with a bulb it blick the bulb bright.


Check the entire circuit around the STR for any faulty component/s; especially to used Zener diodes. You should check each component in the power regulator section circuit, before replacing an other STR. Any of the faulty components at its circuit, might damage the new STR too. Be care.
If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. Do a search by type in the brand name of your device at its search box and press "Enter".
http://electronicshelponline.blogspot.com/
Power supply regulator section circuits to some popular brand TVs are given. Search the site by the number of STR, used at your TV.

Jul 20, 2014 | Televison & Video

1 Answer

Sony TV has a power supply problem both ics irf1b7n50a in the power supply section are all shorting which number could I use as an equivalent. is there a way I could use a power modular with two power id's


Hi Saidi
Have you checked all the other components used in the main power supply regulator section circuit, before replacing a new STR? You should do it. There should be a reason for the failure to STR. You should find it, and rectify it, before replacing an other STR. Check all the small components, resistors, zener diodes, small value ceramic capacitors etc: Make sure all of it are OK. Especially give a keen attention to zener diodes used; if any. It will be best to replace these diodes, even if you do not find any fault with it with multimeter test.For more information go to http://electronicshelponline.blogspot.com/
Power supply schematics to some popular brand TVs are given. Pull up older posts. Good Luck.

Nov 26, 2013 | Televison & Video

1 Answer

When you plug the power cord in the lap top does not even power up there is nothing


Your power supply is either faulty or your computers power supply area is faulty, if you have a light on the power supply usually green, you can tell that way if your power supply is working, the other way to tell would be a multi meter checking dc voltage from the power supply's end, if you get around 13-14.5 volts somewhere in that area, then it is supplying voltage and is okay, which would mean it would be your power supply in the computer on the motherboard is faulty, which needs serviced by the company if under warranty or computer tech, if your power supply is all the way in and plugged in the laptop, it's usually one of those two issues, it can still work on battery and sometimes it wont if it is the computer, i would first suspect the power supply itself first, and check it while plugged in , even plug it into another outlet just to rule that out. if the power supply is bad and you replace it, the computer should work fine, unless there is internal damage in the computer. Hope this helps.

Dec 01, 2010 | Computers & Internet

3 Answers

No Display, no sound- not working, showing dead. But input Power is ok. Picture tube filamment not getting power. model sony KV-2192M3


Hello
Check the input fuse first. If it is blown, there will be some short inside the power regulator circuit. Usually Sony sets uses STR regulated power supply. You can see this STR, and Ic, screwed onto a heatsink. Replace it with a same type and number. Before replacing the STR, check the diodes used in that section for damage, mainlu zener diodes. They might get shorted along the blowing of the STR. Check that section throughly before resoldering the new STR.
If any further assistance you needs, get me through Fixya. Ok.

Nov 27, 2010 | Sony FD Trinitron WEGA KV-21CL10 21" TV

1 Answer

Tv is automatically switching to stanby mode after a few seconds


Hello,

Power supply board have problems,just not dead yet.Replaced the power supply board,will solved this problems.Tries websites like Shopjimmy.com,Ebay.com to buy a refurbish power supply board for the replacement.

Hope this helpout......

Aug 03, 2010 | Sharp LC32D44EBK 32 in. LCD TV

1 Answer

Flashing word "Protector" shows up and the sound stop on my Sony da555es receiver. I have to turn off the unit several times before the sound stays normal.


Usually a protect fault will indicate a bad transistor in the amplification section. I suspect that the control circuit is sensing a fluctuation in the power supply and going in to protect mode. (assuming that the protect circuit itself is working properly) If a voltage is too high the unit will go in to protect mode to prevent damage to the speakers and the rest of the unit. I would take the unit in to a local repair shop and get a estimate of repair charges. Expect a 60 to 80 dollar repair charge depending on how many parts need to be replaced and what the repair labor rate is in your area.

May 05, 2010 | Sony STR-DA555ES

1 Answer

My Sony STR-DG500 wont turn on just clicks once and nothing.


Sounds like faulty psu (pwer suply unit) Amp is going into protection mode. Disconnected all speaker and av wires (only power) turn up volume and see if it stays on. If not psu, sounboard or volume function faulty. If on, connect one speaker L or R. Go to tuner mode to tuned radio station an listen for sounds. If on, connect speakers and av cables one by one and test each one on its own until amp switches off, Investigate from there were problem is. Make sure speakerwires is not shorting out.

Aug 29, 2009 | Sony STR-DG500 Receiver

1 Answer

No sound black screen


You can see the Vertical Outpu IC(must be damage and resistor from the flyback tranformer), but check the main power supply STR. Some times this STR not seems damage when you test out of main board, but with voltage it funtion not well.(Sorry my English).

May 21, 2009 | Panasonic Televison & Video

2 Answers

Sharp projector XR 30S stanby


Sounds like the lamp needs to be replaced.
Re your Sharp XR 30S We are able to supply replacement lamp delivered (excluding local your local taxes) for $US270 as we ship internationally and also the same with our revolutionary ICE Digital Daytime projection screens.
http://www.youtube.com/watch?v=HvZ2DlVJ790 http://www.youtube.com/watch?v=qL_44xfK9y8 Regards Kevin Andreassend ICE AV Technology Ltd http://www.digitaldaytime.com iceavtech@gmail.com +64-9-414 2348

Feb 11, 2009 | Sharp XR-30S Projector

1 Answer

No click.


it is in a stanby, wen power it runs to 2-3 seconds then it back to sanby

Jan 19, 2008 | Sanyo DS24425 24" TV

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