Question about Televison & Video

1 Answer

Hatachi 53fdx20b I have this television set and it has recently gone out of convergence with the red. I have replaced the stk392-110 chips as well as RK41 which was extreemly crispy, it looked like it was 20 ohms but since it still does not work, I was hoping you could tell me the value of RK41 and I will try again thanks so much for your help allan apassey@amx.com

Posted by on

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    Hot-Shot:

    An expert who has answered 20 questions.

    Corporal:

    An expert that hasĀ over 10 points.

    Mayor:

    An expert whose answer gotĀ voted for 2 times.

  • Expert
  • 106 Answers

It is probably RK42 and the value is 3.9 ohms at 1 watt

Posted on Dec 17, 2008

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Hitachi 53fdx20b has yellow line on top and bottom an well as blue, all color if off. What is the problem and how much would it cost to get fixed or can I fix it myself?


It sounds like a convergence problem and is typical for many projection sets.

Parts cost would be under 25 dollars.

The repair consists of getting at and replacing two convergence chips and being able to solder is also involved as they have 18 pins each chip.

Let me know your skill level and I would be happy to help.

Oct 22, 2011 | Hitachi 53FDX20B 53" Rear Projection...

4 Answers

53fdx20b


You can check this link for that convergence that your looking http://www.partstore.com/Search/Model/Hitachi+Ltd/Hitachi.aspx
after you replace thet convergence correctly its should be working fine already..

Good luck.........

Aug 10, 2008 | Hitachi 53FDX20B 53" Rear Projection...

1 Answer

Screen is shrinking and colors are out of alignment


Your TV most likely has one of two possible problems.

Problem #1: Convergence Chip Failure ( common problem )

Here are some of the most common symptoms and example photos of a convergence problem
  • Screen looks 3D
  • Colors don't line up
  • One or more colors can't be adjusted when using the convergence menu.
  • Screen is bowed or warped.
701cb04.jpg
77ea520.jpg
f0900cb.jpg
Here is a quick test....

Using your original remote go-to the tv settings then goto the convergence section.

Try to adjust the red and then the blue convergence.



You should be able to move them up, down, left, and right.

If you can't move them in all directions your convergence chips are bad and should be replaced. This is a common problem.

2c07611.pngSolution #1

You need to replace the convergence chips and convergence resistors. Check the site www.TvRepairKits.com. They have put together a kits for most models. If you don't see a kit for your set send them a quick note and they will put one together for you. Their kits include a photo instruction guide, original OEM Sanyo STK chips, convergence resistors, pico fuses, etc.


Problem #2 CRT Fluid is Cloudy

Projection TV tubes have a liquid coolant that is used to keep them from overheating. After many years the coolant in the blue and green tubes will become cloudy and cause the screen to look dull, red/orange, etc. You may even see halos around images.

Picture of a set that needs the fluid changed.

578ba6c.jpg
TV set after fluid change

65af323.jpg

2c07611.pngSolution #2


What you will need to do is replace the coolant and clean the crt. You can get a repair kit from www.TvRepairKits.com that includes replacement coolant, photos. instructions, etc

Dec 14, 2010 | Hitachi 53FDX20B 53" Rear Projection...

2 Answers

Hitachi 53FDX20B - now no pic or sound


The Convergence chips it dead again,might even burn somethings else in ur tv now?Never replaced anythings more or less tolerances in electronics or machanicals equipments only same parts same tolerances.

Nov 09, 2009 | Hitachi 53FDX20B 53" Rear Projection...

1 Answer

42 inch Hatachie Ultravision model 43UWX10B and


The magic focus will stop if there is a bad sensor and or a problem in the convergence circuit.

This set uses two STK-392-110 convergence chips--both along with any of the resistors that protect them need to be replaced and the set adjusted--I have repaired hundreds of these sets----


Confirm model number----and if you go into the customer menu and either red or blue will not move in any or some direction--the chips have to be replaced---LET ME KNOW WHAT YOU FIND AND I CAN GIVE YOU FAIRLY DETAILED INSTRUCTIONS ON WHERE TO GET THE PARTS AND WHAT IS INVOLVED IN THIS REPAIR.

I am here to help people--

REGARDS, SD TECH

Oct 10, 2009 | Hitachi 43UWX10B 43" Rear Projection...

1 Answer

Hitachi 53FDX20B Rear won't turn on and LED's Flashing


I believe they are the voltage supplies for the TWO convergence IC's that this set uses(either STK-392-110 OR STK 392-150---THEY are interchangeable--but the 150 is a better device)

The easiest way to prove if this is your problem is to locate the two chips (black--2 1/2 inch wide X 1 1/2 inch tall with the STK number printed on them IN WHITE)

If someone unsolders all 18 pins on each chip--see if the set will turn on with them out of the circuit (you do not have to remove them--just unsolder both---If the set comes on the convergence will be very bad but you will know one of the chips is bad.

Also if you look at all the resistors around them (most will have location number RK46 etc) see if any of them are discolored or burnt. You find a burnt resistor and it is a sure bet onE of the chips is bad.

BOTH CHIPS NEED TO BE REPLACED!

A pretty easy repair if you have good soldering skills and I can tell you what you will need to do the repair.
If replacement of the chips fixes the set it just needs to be adjusted with the Hitachi remote and should not have this problem again for 5-8 years.


IF YOU HAVE QUESTIONS, do not hesitate to ask me---I am here to help people.

SD TECH

Oct 09, 2009 | Hitachi 53FDX20B 53" Rear Projection...

2 Answers

Color convergence "whacked out"/blue shadow to right side


Your TV most likely has a convergence failure. ( common problem )

Here are some of the most common symptoms and example photos of a convergence problem


  • Screen looks 3D
  • Colors don't line up
  • One or more colors can't be adjusted when using the convergence menu.
  • Screen is bowed or warped.
Here are some photos of convergence problems.

3dc9420.jpg
645fba6.jpg
0dcec37.jpg
Here is a quick test....

Using your original remote go-to the tv settings then goto the convergence section.

Try to adjust the red and then the blue convergence.

You should be able to move them up, down, left, and right.

If you can't move them in all directions your convergence chips are bad and should be replaced. This is a common problem.

0667c5f.pngSOLUTION

You will need to replace the convergence chips and possibly some convergence resistors and pico fuses. Its a fairly easy DIY job or you can call in a pro. If you want to do the repair yourself check the site www.TvRepairKits.com. Their kits include a photo instruction guide, original OEM Sanyo STK chips, convergence resistors, pico fuses, thermal paste, email/phone support, etc.

Jun 03, 2009 | Hitachi 53FDX20B 53" Rear Projection...

1 Answer

HATACHI 53FDX20B ERROR CODES


I wish I could help you but when I took my convergence board out rk41 wasnt even used and in the service manual i couldn't find anything about it.

Dec 17, 2008 | Televison & Video

2 Answers

When i turn on tv the screen is turning green


Solution:
Your TV has a convergence problem. Here are some of the most common symptoms.

Screen looks 3D
One or more colors can't be adjusted when using the convergence menu.
Screen is bowed in but stationary.
Here is a quick test....
Using your original remote go-to the tv settings then goto the convergence or magic focus section
Try to adjust the red and then the blue convergence.
You should be able to move them up, down, left, and right.
If you can't move them in all directions your convergence chips are bad and should be replaced. This is a common problem.
You can get a repair kit that includes all the parts from www.TvRepairKits.com.
They have put together a kit for the Hitachi TV sets.
The kit includes a photo instruction guide, original Sanyo STK chips, convergence resistors, etc.
Everything you need to fix it yourself. Its a fairly easy fix on the Hitachi sets.

Dec 11, 2008 | Hitachi 53FDX20B 53" Rear Projection...

3 Answers

Hitachi 53FDX20B


If you have a color (red, green or blue) that is bowed inward from any side, then one of your convergence IC's has cracked loose or burned out. There is no way to fix that manually - the IC and possibly a resistor must be resoldered or replaced, and that should be handled by someone experienced in repairing and realigning convergence circuits.

May 06, 2007 | Hitachi 53FDX20B 53" Rear Projection...

Not finding what you are looking for?
Televison & Video Logo

Related Topics:

51 people viewed this question

Ask a Question

Usually answered in minutes!

Top Televison & Video Experts

The Knight
The Knight

Level 3 Expert

72640 Answers

Electro Med Services...
Electro Med Services...

Level 3 Expert

6694 Answers

yadayada
yadayada

Level 3 Expert

70365 Answers

Are you a Televison and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...