Question about Hitachi 43FDX01B TV

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I am about to install the two ICs and want to make sure that I am using the correct thermal compound for the application. I purcahsed a High Density Ceramic content thermal compound. After reading I was pretty sure NOT to use the silicon based compunds. This is the actual purchase: http://www.radioshack.com/product/index.jsp?productId=2216880 Am I using the correct compound?

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  • Hitachi Master
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That compuond will work fine - <a rel='nofollow' href="http://www.TvRepairKits.com">www.TvRepairKits.com</a>

Posted on Aug 28, 2010

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6ya6ya
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Tv turned itself off. turn power back on, picture


Your TV is experiencing a convergence issue as indicated by the 3 blinks. The only way to fix this is replacing the convergence ICs. It is not a hard task to replace these ICs. You just need to know how to solder and work on printed circuit boards.

The convergence ICs are mounted on a large heat sink and are marked with codes starting with the letters STK and there are two of them. You need to replace both.

Look for the heat sink with two ICs mounted on it and check the markings.

Once found, cut the IC legs with a small side cutter and unscrew it from the heat sink. Remove the legs left soldered on the board.

Take note of the IC markings for ordering the right part and how it was installed. Don't forget to buy along with the IC a thermal compound.

Check the pico fuses on the same board. Most likely you will find a blown one. These fuses look very much like a resistor, not like the usual transparent fuse, and usually yellow.

Once you have the replacement ICs, put it on the board in the same way as it was installed before. Make sure the screw holes are aligned before soldering the legs into the board.

Put a reasonable amount of thermal grease/compound between the ICs and the heat sink and fix them with the screws.

Double check the board for any splash of solders that might cause a short circuit and damage the board.


Dec 07, 2009 | Panasonic PT-47WX53 47" Rear Projection...

4 Answers

Shuts off then flashes power light


I think this is a power problem, check the power supply for bulging or leaking electrolytic capacitors or other damaged components.

Jul 20, 2008 | Panasonic PT-53WX53 53" Rear Projection...

1 Answer

959dx mosfet finals getting very hot and has to be replaced regularly. how can i use 2sc1969 and 2sc2166 in this galaxy 959dx radio


Make sure it is mounted to the heat sink properly. Use an non conductive pad, and thermal compound and make sure it is secured tightly. If this does not help you may have to use a better heat sink in the radio.

The Final should not burn out regularly if the radio is operating correctly.

Make sure the antenna in use is properly tuned for lowest SWR. A high SWR will result in a failing final.

Oct 27, 2009 | Radio Communications

1 Answer

How to replace convergence ICs in samsung


You will need:
  1. Convergence ICs.
  2. Heat sink grease or thermal compound.
  3. Soldering iron.
  4. Solder lead.
  5. Digital multimeter.
  6. Solder pump.
  7. Small side cutter.
Steps:
  1. Unplug the unit from the AC outlet.
  2. Remove the screws and take the back panel off the TV. The convergence ICs are located behind a large heat sink.
  3. Remove the board that the ICs are on.
  4. Check all the big resistors on the board using the digital multimeter. Some resistors are connected in parallel so they read half of their nominal resistance.
  5. Check the board for cracked solders and tracks.
  6. Cut all the legs of the ICs and unscrew them from the heat sink to take them out.
  7. Remove all the legs by applying soldering iron on one side and pulling on the other side.
  8. Clean the holes for the new ICs with the soldering iron and solder pump.
  9. Clean the heat sink from the old thermal compound or grease and apply the new one to the ICs.
  10. Fit the new ICs legs on the holes and screw them to the heat sink. Wipe excessive grease. Make sure they are making good contact with the heat sink.
  11. Cut excessive length of legs. Leave about 2mm and solder it in.
  12. Clean solder points with lacquer thinner or even alcohol.
  13. Make sure no solder is going to two legs at the same time.
  14. Put all back together.
  15. You may need to readjust the convergence on the menu.

Oct 24, 2009 | Samsung HCN653W 65" Rear Projection...

1 Answer

TM-T88III print speeds and other issues


Try setting both switch 1-7 and 1-8 to ON for 38400 baud, set switch 1-2 to OFF to give a 4k buffer, set switch 2-5 to OFF to release the busy buffer at 256 bytes, set switches 2-3 and 2-4 to ON & OFF for medium print density and OFF & ON for dark print density or OFF & OFF for normal print density.

Also remember that the thermal TM-T88III also prints faster when the print head is cooler and slower when it heats up. The print speed is adjusted automatically depending on the voltage applied and head temperature. So make sure your power supply is providing a steady 24VDC at full load and has enough capacity to provide a peak of 7.7A in full speed mode. If you are using the printer in high temp and humidity you might want to swap the unit out for a Star Printer which performs faster and uses the same protocol or use a cooling fan.

Also make sure you use a good quality paper and that the humidity is within range at 10 – 90% RH although the paper performance will be greatly diminished at higher humidity levels.


Specifications:

High-speed = Approx. 150 mm/s {5.9"/s} max.; 47.2 lps, max. (3.18 mm {1/8"} feed);
35.5 lps, max. (4.23 mm {1/6"} feed, at 24 V, 28°C {82°F}, density level 1).

Low-power: Approx. 16.5 lps (4.23 mm feed {1/6"}); 70 mm/s {2.76"/s}
Ladder bar code: Approx. 42 mm/s {approx. 1.7"/s}

High-speed mode: Mean: Approx. 1.8A Peak: Approximately 7.7A @24VDC
Low-power mode: Mean: Approx. 1.2A Peak: Approximately 6.6A @ 24VDC

Operating temp = 5 to 45°C {41 to 113°F}
Operating Humidity = 10% - 90% RH


Aug 28, 2009 | Epson TM-T88III Thermal Printer

1 Answer

I tryed to restore my emachine w1800 with my restore disk and when I reboot a blue screen comes up a problem has been detected and windows has been shut down to prevent damage to your computer. If this is...


could be a couple of things, usually when you get the BSOD (blue screen of death) there is usually a ram problem, have you noticed your pc getting slow, sometimes the ram sticks break down over a period, try getting hold of a memory tester software and checking the PC, this is usually done through the inital start up before windows is loaded, please ensure though that if you need to get more ram that you use the correct one for your motherboard, buying incorrect ram can cause more problems and is a waste of money, www.crucial.com is good for checking ram in pcs, also you need to make sure that if it says low density you use low density ram, or high density for high density. also make sure that you buy the one with the correct amount of pins.

hope that this helps


Feb 28, 2009 | E-Machines W1800 PC Desktop

1 Answer

Hitachi 50UX58B Double vision question?


yes you can get the new replacement ICs at the following link. The heat sink compound is cheaper at radio shack as its 1.29 for a small tube which is plenty for installing the ICs. The link I am posting will tell you the correct ICs you need for your model if you leave them a email with your model number and yes they provide free instructions and free tech support so you can do the repair yourself. here's the link.
http://servicemanuals.vstore.ca/

Jun 27, 2008 | Televison & Video

1 Answer

Reply


yes the white paste is heat sink compound which transfers heat. Be careful using ICs from places that your not sure of as most sell cheap chinese knock off and not the origional Sanyo units . STK ICs are made by sanyo, but be aware when you use cheap knockoff chips as they can short out usually within minutes and cause alot of extra problems such as causing resistors to go open. I just helped a guy last week that spent 5.99 on new ICs installed them and proceeded to burn every resistor in his convergence circuits when the new ICs he purchased on line shorted out. Let me know how you make out.

May 29, 2008 | Samsung PCL6215R 62" Rear Projection...

1 Answer

Memory Stick Installation


So it seems you got the DDR / DDR2 side of the equation correct, but unknown to most, there is 'low' and 'high' density memory.

The density of memory refers to the number of chips used to make the total amount of memory that your memory stick contains. e.g. High density memory has few, large capacity chips to make up the 1024MB of memory on the stick, whereas low density memory uses many, small capacity chips to make up the same 1024MB total on the stick.

Typically, if it is a low / high density conflict, it is the 'low density' sticks only that will boot.

Me, I purchase Kingston memory when I'm unsure what the motherboard will be, and it has never failed to work.

I fix computers.

May 19, 2008 | EliteGroup PM800M2 Motherboard

1 Answer

Zebra LP 2844 fuzzy print


1. Clean the print head with cleaning pen.
2. Adjust print speed/darkness in software.
3. Check the media and verify that print surface is facing up.
4. Check that correct thermal media is in use.

Apr 23, 2008 | Zebra LP 2844 Thermal Printer

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