Question about Mitsubishi WS-55807 TV

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Electronics skills Yeah, definitely been doing electronics a while. Mostly guitar amps though. I've never been a TV guy, but I did replace a convergence IC on my old Pioneer SD RPTV.

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Replace electrolytic capacitors in the power supply section. start with replacing (2) 860uf 180v caps just after the bridge rectifier and continue along the circuit. Some (15) or so capacitors later, it will clear the horizontal bars and lines and any high pitched noise that comes along with it.

Posted on Mar 21, 2008

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RCA F19281 Stuck on Channel


Do a hard reset to this first. If it do not help you, make sure that the main system memory IC of your TV is faulty. This is an 8 solder terminal IC, vary small in physical size. Even though it is very small, function to it, when TV works on is great. This is an easy to get IC, not cost more. But, replacing it is a skilled work indeed. You must have sound knowledge in electronics, and all desoldering and soldering equipments.
To make a hard reset to this set, unplug the TV from AC mains, and re-plug it in after 10 minutes or so. If the problem is with 'system Reset' this must solve the problem.

Jun 22, 2012 | RCA F19281 19" TV

1 Answer

Toshiba TV stereo drops out


This might be a problem with the Audio output final stage where it goes from the Stereo decoder to the Audio amplifiers. This problem might not be something that you can fix if you do not have an electronics background. If you do not have a background in electronics I would suggest that you take this to a qualified electronics service technician. If you do have a background in electronics I would suggest that you get a schematic and begin testing around the stereo decoder and audio amplifiers.

Sep 11, 2007 | Standard (CRT) Televisions

1 Answer

Toshiba tv 30 inch need repair hard to turn on


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 on the PSB. Many major electronics companies Philips/Magnavox, Sony, Panasonic, and others 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 $$$$$$$??????? (Is it under warranty?)

Remember, TVs CONTAIN HIGH VOLTAGE AND CAN KILL YOU! Do this at your own risk.

2. Open your TV and find PSB. (The board that the power cord plugs into) Check for faulty caps. If you find some (bulged or leaking) bad caps replace the entire board. The entire board costs around $250 right now because they are in high demand right now. They can be found online. I would definitely shop around though.


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.


This may be your problem. If you determine that it might be.

I have a Tip/How TO 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. Here is the Link: Fixing the Philips Turns/shuts off on its own problem. I'm working on uploading pictures to help guide people though the process as well. Let me know if I can do anything to help.


Hope this helps and if it does please rate it accordingly. Good luck.

Dec 20, 2010 | Toshiba 30HF84 30" TV

1 Answer

Ilo TV turns off every 5 minutes, Any solutions??????


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 on the PSB. Many major electronics companies Philips/Magnavox, Sony, Panasonic, and others 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 $$$$$$$??????? (Is it under warranty?)

Remember, TVs CONTAIN HIGH VOLTAGE AND CAN KILL YOU! Do this at your own risk.

2. Open your TV and find PSB. (The board that the power cord plugs into) Check for faulty caps. If you find some (bulged or leaking) bad caps replace the entire board. The entire board costs around $250 right now because they are in high demand right now. They can be found online. I would definitely shop around though.


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.


This may be your problem. If you determine that it might be.

I have a Tip/How TO 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. Here is the Link: Fixing the Philips Turns/shuts off on its own problem. I'm working on uploading pictures to help guide people though the process as well. Let me know if I can do anything to help.


Hope this helps and if it does please rate it accordingly. Good luck.

Dec 20, 2010 | iLO IWT3206 TV

1 Answer

My sony tv can't open...when i change the channel it will turn off and switch to stand by


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 ofcourse) and found four bulged capacitors on the PSB. Many major electronics companiesPhilips/Magnavox, Sony, Panasonic, and others were sold capacitors that failedin 2-5 years instead of 10-20. Thecapacitors fail prematurely due to a lack of preservatives. Unfortunately, they were installed in allsorts of devices and cause a wide range of failure problems. Here are some options for you. 1. Have it fixed by a professional $$$$$$$??????? (Is itunder warranty?) Remember, TVs CONTAINHIGH VOLTAGE AND CAN KILL YOU! Do this at your own risk. 2. Open your TV and find PSB. (The board that the power cordplugs into) Check for faulty caps. If you find some (bulged or leaking) bad capsreplace the entire board. The entireboard costs around $250 right now because they are in high demand right now.They can be found at tv-part.com but supplies are limited. I would definitely shop around though. 3. Remove and then replace individual faulty caps. This takes some soldering skill. Caps are inexpensive and if you can take care of it yourselfit will save you hundreds. This may be your problem. If you determine that it might be. I have a Tip/How TO tutorialon this site that may also help. Itgives step by step instructions for replacing caps on PSB #715t2432-2. If this isyour board you are in luck. Here is theLink: Fixingthe Philips Turns/shuts off on its own problem. I'm working on uploading pictures to helpguide people though the process as well. Let me know if I can do anything to help. Hope this helps and if it does please rate itaccordingly. Good luck.Kaufman605

Dec 15, 2010 | Sony FD Trinitron WEGA KV-32FS120 32" TV

1 Answer

My tv is staying on stand/by timer...Won't turn on


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 on the PSB. Many major electronics companies Philips/Magnavox, Sony, Panasonic, and others 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 $$$$$$$??????? (Is it under warranty?)


2. Open your TV and find PSB. (The board that the power cord plugs into) Check for faulty caps. If you find some (bulged or leaking) bad caps replace the entire board. The entire board costs around $250 right now because they are in high demand right now. They can be found at tv-part.com but supplies are limited. I would definitely shop around though.


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.


This may be your problem. If you determine that it might be.

I have a Tip/How TO 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. Here is the Link: Fixing the Philips Turns/shuts off on its own problem. I'm working on uploading pictures to help guide people though the process as well. Let me know if I can do anything to help.


Hope this helps and if it does please rate it accordingly. Good luck.

Dec 15, 2010 | Sony FD Trinitron WEGA KV-24FS120 24" TV

2 Answers

How to troubleshoot speaker


Hello sir, Hi!, the garble is caused by two things, 1. a bad speaker, 2. a bad power amplifier IC.

To test the Speaker,
Remove the speaker out from the TV, (this needs disassembly stuff) test it using any available portable amplifier. or radio, OR replace the speaker with the same size.

If this does not solve the garble sound, replace the power amp IC. (this really needs skills in electronics.) thats it.

Apr 27, 2010 | Standard (CRT) Televisions

1 Answer

Tv was on for an hour or 2 and suddenly the volume level spiked all the way up and down & continued cascading up & down. Remote control did not respond to anything. had to pull plug to stop it....


Dear Sir , do you have any electronics skills? If yes check for bad connection which must be redone by soldering. carefully open the bad of your TV( the tv must be unplugged), remove the main board and check for the bad connection.

Jan 24, 2010 | Sony FD Trinitron WEGA KV-32FS120 32" TV

2 Answers

Main power button and remote will not turn on tv. It is plugged in and has 110. Worked last night but would not come on today.


The most common failure for these sets to go totally dead is the degaussing thermistor shorts out thus causing the A.C. fuse to open. The part number for the thermistor is D4DDF1R50001 and the fuse is part number XBA2A00101F... You can do a Google search for these parts. One you get the parts and look at the board where the A.C. cord connects to, the fuse and thermistor are not too far from that point. Its an easy fix if you have any soldering skills. Please take a few moments to rate my answer. Thanks...

Nov 20, 2009 | Panasonic CT-32HXC14 32" TV

1 Answer

Sony trinitron 36 will not come on but led flashes 5 times quickly


yeah, this are the circuits that you have to check,horizontal ckt.and the vertical ic it might be bad you need some electronics repair skills in order for you to do this.


good luck
caypianan@yahoo.com

Oct 18, 2008 | Sony FD Trinitron WEGA KV-36FS120 36" TV

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