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LOGIK LCXW32HD1 TV TV had total failure took for repair told that the power supply was us and that parts are no longer available

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  • Anonymous Oct 11, 2008

    i have had exactly the same problem

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I have had 3 of these sets, all with blown '+5V Standby' circuits. The culprit was the 8-pin DIL FSD200 controller chip. When it blows it takes out the little optocoupler, the small SM bridge rectifier (PCB underside) and the 20mm fuse. The FSD200 is hard to source, but Digi-Key have plenty at £0.88 each. They also sell replacement bridges, fuses and optocouplers. If you attempt the repair I recommend that you fit sockets for the controller and optocoupler. If you fit the opto round the wrong way the +5V Standby rail will try to rise to over 10V and the set's control logic may be damaged. Good luck.

Posted on Dec 18, 2008

  • ray austin
    ray austin Jul 20, 2015

    Hi, never attempted to fix a TV, but this answer is good. What are the part numbers I would need off Digi-key, on there site and can't find the optocoupler and small bridge part numbers. Any help would be great.

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I am looking for a t4 standby transformer for one of these sets.

Posted on Dec 01, 2013

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Tv shuts off , power light blinks with popping sound


You might wish to unplug the TV for an hour or more. If this power reset does not allow the TV to turn on component failure is indicated. These sets are assembled using the wave soldering process they are known for having cold solder connections.

The safety circuitry shuts the TV set down or will keep it from turning on when it detects a problem. This model of TV has over 2,000 parts, which includes millions of transistors inside the integrated circuits. The capacitors will change value, leak and become defective. Resistors will change value and burn. Diodes and IC can go bad.

This may have a domino effect and cause other parts to fail. Replacing one defective part may make the TV operate for a short time but the part will fail again if the parts that caused the failure to begin with are not replaced.

The only way to know for sure which parts that are no longer within factory specs and for a proper repair all the electronics must be diagnosed by someone with the correct electronic test equipment specifically designed for TV service and the skills to use the test equipment. I wish I could tell you there was a quick fix or button to push that would fix the TV but that is not the case or the solution needed to get the TV operating correctly.

It's the problem of overheating in the power supply board of the TV.on the power supply board of the TV there are few capacitors and IC.any of this IC is got short or may be weak.so due to this when you start the TV the current passes from electric outlet to the power supply board of TV.but when the current passes from that weak/faulty part at that time current gets stopped or slow and the board overheats and TV shuts off. this is a common problem faced by many other users too.the possible option to solve this issue is to check the power supply board by a meter and continuity tester and replace the faulty component on the board which is short due to which power supply board is getting overheated.its bit technical job but yes its not at all a costly repair to do or get it done by the technician. for required parts it can be easily available from local electronic hardware shop.

Hope this will help in solving the problem.......

Jul 18, 2011 | RCA HD52W56 52" Rear Projection HDTV

3 Answers

Have a haier plasma tv model#42hp25bat. sound but no picture. can it be repaired?


Did this occur suddenly, or was the picture gradually failing over time?

Jun 05, 2008 | Televison & Video

1 Answer

My tv has no sound or picture turns on then temp and lamp light blink red then set turns off


You might wish to unplug the TV for an hour or more. If this power reset does not allow the TV to turn on component failure is indicated. These sets are assembled using the wave soldering process they are known for having cold solder connections.

The safety circuitry shuts the TV set down or will keep it from turning on when it detects a problem. This model of TV has over 2,000 parts, which includes millions of transistors inside the integrated circuits. The capacitors will change value, leak and become defective. Resistors will change value and burn. Diodes and IC can go bad.

This may have a domino effect and cause other parts to fail. Replacing one defective part may make the TV operate for a short time but the part will fail again if the parts that caused the failure to begin with are not replaced.

The only way to know for sure which parts that are no longer within factory specs and for a proper repair all the electronics must be diagnosed by someone with the correct electronic test equipment specifically designed for TV service and the skills to use the test equipment. I wish I could tell you there was a quick fix or button to push that would fix the TV but that is not the case or the solution needed to get the TV operating correctly.


It's the problem of overheating in the power supply board of the TV.on the power supply board of the TV there are few capacitors and IC.any of this IC is got short or may be weak.so due to this when you start the TV the current passes from electric outlet to the power supply board of TV.but when the current passes from that weak/faulty part at that time current gets stopped or slow and the board overheats and TV shuts off.

his is a common problem faced by many other users too.the possible option to solve this issue is to check the power supply board by a meter and continuity tester and replace the faulty component on the board which is short due to which power supply board is getting overheated.its bit technical job but yes its not at all a costly repair to do or get it done by the technician. for required parts it can be easily available from local electronic hardware shop.

Hope this will help in solving the problem.......

Jul 17, 2011 | Hitachi 50VF820 Projection TV

1 Answer

Tv shuts off after a minn or 2


ou might wish to unplug the TV for an hour or more. If this power reset does not allow the TV to turn on component failure is indicated. These sets are assembled using the wave soldering process they are known for having cold solder connections.

The safety circuitry shuts the TV set down or will keep it from turning on when it detects a problem. This model of TV has over 2,000 parts, which includes millions of transistors inside the integrated circuits. The capacitors will change value, leak and become defective. Resistors will change value and burn. Diodes and IC can go bad.

This may have a domino effect and cause other parts to fail. Replacing one defective part may make the TV operate for a short time but the part will fail again if the parts that caused the failure to begin with are not replaced.

The only way to know for sure which parts that are no longer within factory specs and for a proper repair all the electronics must be diagnosed by someone with the correct electronic test equipment specifically designed for TV service and the skills to use the test equipment. I wish I could tell you there was a quick fix or button to push that would fix the TV but that is not the case or the solution needed to get the TV operating correctly.


It's the problem of overheating in the power supply board of the TV.on the power supply board of the TV there are few capacitors and IC.any of this IC is got short or may be weak.so due to this when you start the TV the current passes from electric outlet to the power supply board of TV.

But when the current passes from that weak/faulty part at that time current gets stopped or slow and the board overheats and TV shuts off. this is a common problem faced by many other users too.the possible option to solve this issue is to check the power supply board by a meter and continuity tester and replace the faulty component on the board which is short due to which power supply board is getting overheated.

Its bit technical job but yes its not at all a costly repair to do or get it done by the technician. for required parts it can be easily available from local electronic hardware shop.

Hope this will help in solving the problem.......


Jul 13, 2011 | Mitsubishi Televison & Video

3 Answers

I have an older 200x model Mitsubishi 1080i 46" rear projection TV that no longer turns on. When first powered up the power light on the front blinks in sequence to note that I have a bad power supply or...


Parts for older Mitsubishi are difficult to find. If you give me the complete model number I can check if the part is available online.

In the meanwhile please, try the two websites below.

Encompass Parts Distribution


PartStore.com


Feb 10, 2010 | Mitsubishi WT-46807 46" Rear Projection...

1 Answer

POWER SUPPLY FAILURE


These power supplies are complicated to work on. There are some preprietory parts that you would not be able to genericaly puarchase from general electronic parts suppliers.

If you are very strong in knowledge about power supply design, and if you can have the service manuals, have a scope and a DVM, you should have a chance to figure out what the fault is.

Take care that switching power supplies can be dangerous to work on. They employ high current using high voltages on the drive side.

Normally, these power supplies are not designed to be servicable.


Jerry G.

May 13, 2008 | Zenith R57W46 57" Rear Projection...

2 Answers

60P8341A 60 in. Phillips TV


I had the same problem, I had a repair man to come out n he told me what the problem wasn that it will cost around $300.00. So i took it apon myself n removed the keyboard behind where the power buttons are. I waited 10 minutes and replaced it then I had no problems for3 years. Now that its started back up i need to replace it, but they don't sale the part n e more. But I found a substitue part on Sears direct parts n the part number is RFR-PTS-28 they look different but work the same. Right now the price is $28.00.

Apr 30, 2008 | Philips 60P8341 60" Rear Projection...

3 Answers

Phillips 37FD9944/01S Plasma TV - Power Supply


dont waiste your money problem main or logic board or if shure power supply go radio shack and get one with specifications match voltage,ampers,and polarity

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1 Answer

Mitsubishi VS-60805


Which transformer do you need. i have a source for alot of mitsubishi parts.

Mar 20, 2008 | Televison & Video

2 Answers

Power supply/convergence issue...


Your Projo is a complicated piece of equipment, involving 3 picture tubes (like 3 tv's), convergence failures are extremely common, I dont think $550 is totally unreasonable, but I dont think it is a power supply issue if it is just effecting 1 color, usually it would cost around $100 parts $300 labor to repair, might be a little high, I suppose they are also charging you for pickup and delivery, I hate taking sets into office as that sometimes jars stuff loose or cracks boards.

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