Question about Hitachi Televison & Video

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I have a 53 inch hitachi proj tv...model 53UWX10BA....and am doing some of my own repairs...but one of the 1.8 Ohms resistors keeps burning out. The solders look good...I have tested everything and can not find anything wrong. Why does the same resistor keep burning out?! I must have gone through 6 or 8. I am at my end!!! Please help! The original problem is that the coloring is wrong. It is really RED. Am ultimately trying to get that fixed. Thanks!

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  • Hitachi Master
  • 14,553 Answers

1.8 ohm are protect on convergence ics --stk-392-110 or stk-392-150---

Change both ics and make sure not shorted pins via solder connections.

Let me know if you need help

Posted on Feb 19, 2012

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Posted on Jan 02, 2017

TVtechmaniac
  • 140 Answers

SOURCE: Hitachi 53uwx10b

Hitachi has created a repair kit part# X480293 for this problem. It includes: (2)STK392-150 convergence ic's,resistors RK42 = 3.3 ohms,RK46 = 1.8 ohms,RK50 = 2.7 ohms,RK54 = 1.5 ohms,RK58 = 3.9 ohms,RK62 = 2.2 ohms,all 1 watt resistors.

Posted on Aug 20, 2007

  • 1153 Answers

SOURCE: Hitachi 43fdx11b rear proj tv

you can check at vancebaldwin.com or ctechnicians.com

Posted on Jan 04, 2008

  • 95 Answers

SOURCE: picure is aligned in center but can not be aligned on sides color is red and purple

Well budy, welcome to the real world of problem after problem even though you were there other problem start, Ah what in
H%$# did I become a tech.
First did you replace the stk with cheap china part's,
second have you check the vcc at the input of the chip, +/- about 25 volt.
The redish problem is adjudtment to the tint, here how you adjust this take colour off, then adjust screen to 80% and brighness to 40% and adjusting the screen control slowly to get perfect black and white without getting drive line. YOU Don't want drive line this is over driving the grides on the crt's this is located in the front of the screen a box about 4" x 4" x 1" deep and has about 9 wires that goes to it.
Now have you tampered with the aligment of the crt's nut screw well don't I Mean Don't.This is Focus only if you need it.
Next go to the menue (Service Menu) and do the aligment beleave me it's not easy and it will P%$# you off this is on page 46 http://servicemanuals.panasonic.ca/viewing/NA/PT-47WX52F/SVC/47wx_01.pdf.

Here is the schematic hope it help's http://servicemanuals.panasonic.ca/viewing/NA/PT-53TW53G/SIMP/PVAccel.html

Last or you shure it's not your CPU convergence board, this is the board that stick out on the main board,

Regards
What About Bob
I know if you do the convergence alignment it should solve your problem. let me know rlandry@vianet.ca

Posted on Feb 29, 2008

  • 899 Answers

SOURCE: BLOWN RESISTORS

you can download your schematic that will tell you resistor values and the rest of the circuits and IC indentifications as well as test procedures and more , this is a ten part zip that can be opened with winzip and read with adobe just click here http://www.eserviceinfo.com/downloadsm/12926/Hitachi_50FX30B.html
then to order resistors you can get them here http://www.nteinc.com/
or look for an electronic parts supply store around you , but alot of the time they too have to order the parts, ecspecially certain valued resistors or other special valued parts
if you need more help just ask !

Posted on Dec 11, 2008

SD Tech
  • 14553 Answers

SOURCE: i need the resistor values for RK42, RK46, RK50,

If it is 53uwx10B:

RK42 2.2 OHM 1 WATT
RK46 1.5 OHM 1 WATT
RK50 2.2 OHM 1 WATT
RK54 1.5 OHM 1 WATT
RK58 2.7 OHM 1 WATT
RK62 1.8 OHM 1 WATT


Double check the numbers on the STK chips as most of these sets use STK-392-110 OR 392-150 CHIPS-----ONLY A FEW OTHER MODELS(MOST 43 INCH USE THE 120 CHIP.)


I do this here for free so if this helps you take just a minute and give me a vote here.

If you have any questions or need help reply to this posting here--I am here to help people.

REGARDS, SD TECH

Posted on Sep 20, 2009

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Hi there i replaced my hitachi 53uwx10ba convergence IC (2) stk392-120 and now it won't turn on and just flashes at the front panel 7 times, can i get some help pls


Did u check the pico fuse and all those resistors on the tv convergence board to make sure with ones are good resistors which are not good resistors and replace all them resistors too?U didn't do that should get it tested and replaces all those dying resitors.Try website like Tvrepairworld.com look up ur Hitachi tv model what resistors and pico fuse u require to check.

Aug 20, 2011 | Hitachi 53UDX10B 53" Rear Projection...

1 Answer

Hitachi 53UWX10BA has double image


This set uses two STK--392-110 ( you can also replace them with STK-392-150 which is a upgrade for the original type convergence chips)----You can buy both on Ebay for less than 13 dollars plus shipping.

Both chips need to be replaced and any damaged resistors around them located and replaced also--most of the time the set just needs both chips replaced and then adjusted.

If you cannot do this repair yourself--look in your area--most shops TRY to charge 300-400 for this kind of repair----I do lots of them here--did two Hitachi2.gif sets with this problem yesterday for 200-250 total.

MAKE SURE WHOEVER you get to do this changes BOTH CHIPS--SOME techs will come out and just replace one--in a short time the set will have the same kind of trouble again---Now is the slow time of year for TV repair shops---shop around for someone who will do this repair IN YOUR HOME--almost any good tech can do it in about 1 hour---if they say it "has to go to the shop" keep looking.

The chips are black(2 1/2 inches wide and about 1 1/2 inches tall with 18 pins) and will have the STK number printed on them in white--they are located on either one large metal heat sink2.gif with fins or two smaller heatsinks that are side by side.

If you have ANY questions or need help reply to this post here.



SD TECH

Oct 07, 2009 | Hitachi 53UWX10B 53" Rear Projection...

1 Answer

I need the resistor values for RK42, RK46, RK50, RK54, RK58, RK62 when using stk392-120 chips in Hitachi 53UWX10BA.


If it is 53uwx10B:

RK42 2.2 OHM 1 WATT
RK46 1.5 OHM 1 WATT
RK50 2.2 OHM 1 WATT
RK54 1.5 OHM 1 WATT
RK58 2.7 OHM 1 WATT
RK62 1.8 OHM 1 WATT


Double check the numbers on the STK chips as most of these sets use STK-392-110 OR 392-150 CHIPS-----ONLY A FEW OTHER MODELS(MOST 43 INCH USE THE 120 CHIP.)


I do this here for free so if this helps you take just a minute and give me a vote here.

If you have any questions or need help reply to this posting here--I am here to help people.

REGARDS, SD TECH

Sep 20, 2009 | Hitachi 53UWX10B 53" Rear Projection...

1 Answer

The picture is only about three inches high in the middle part of screen and has a slight curve


vertical circuts or vert drive circut shady easy fix need more info on tv dlp proj plasma usually bad ic 1 or 2 18.00$apiec ver def ic look up ur part #go 2 nte electrnics.com buy part tip replace surrounding capacitors and output resistors good luck

Aug 07, 2009 | Hitachi 53UDX10B 53" Rear Projection...

1 Answer

Model 53uwx10ba


It sounds like you convergence amplifiers are about to malfunction. If possible can you post a picture of what is happening. Again by the description you gave it sounds like the convergence amplifiers.

If you go to a shop the cost will about $400 - $500 (includes parts and labor).
If you do it yourself the cost will be about $25.00 - $50.00 (includes parts labor is free)

If you choose to do this yourself, here are the basic instructions:
1. Unplug the TV set
2. Take the rear bottom panel off
3. look for a large heat sink with two large black ICs (STK392-110) (6 sided components but rectangular in shape) on it, and remove the board the ICs are on from the TV set.
4. Unsolder the components using a soldering iron and a suction solder remover.
5. disconnect the components (ICs) from the heat sink
6. Unsolder all of the bias resistors and replace them with the proper values (usually 220, 150, 3.3, 2.2, and 3.9 ohms)
7. install the new ICs (STK392-110)
8. solder all connections IC and bias resistors
9. Inspect for shorts
10. reinstall circuit board
11. Plug the TV set in and turn it on.


I hope this helps

Thank you,
Shuttle83

Oct 01, 2008 | Hitachi 53UDX10B 53" Rear Projection...

1 Answer

Hitachi projection tv


I would change both ICs STK392-110 and also the 3.3ohm 1 watt resistors and the 1.8 ohm 1 watt you would need 2 of each resistor. Then your convergence would be new again. You can get replacement ICs and resistors at the following link with free shipping and free instalation instructions with pictures.
http://servicemanuals.vstore.ca/

Jul 01, 2008 | Televison & Video

1 Answer

53uwx10b,hitachi


dactag,
Working backwards now.......The burning smell will be the current limiting resistors near and in the circuit of the IC's
you changed..1 to 2 ohms, 1 or 2 watts.....caused by generic
replacement IC's STK392-110,120 or 150......Here is what to do to FixYa! First,please read some of my solutions for convergence
repairs...any brand,the info is generic,the repair parts are not....

1) REMOVE cheap IC's ! Replace with Hitachi part # CZ 01341
upgrade Mfr by Sanyo STK394-160

2)Replace any / all burnt or changed value resistors

3)Re-test to see any symptom....DO NOT CONVERGE

4)Think about putting the original DCU back,since it was
not the problem .......

5) Now where are we at ?? ............................T.

Feb 05, 2008 | Hitachi 53UWX10B 53" Rear Projection...

1 Answer

Green lines along top of Hitachi 53UWX10BA


convergence ic bad
http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html

Jan 02, 2008 | Hitachi 53UWX10B 53" Rear Projection...

2 Answers

Hitachi 53uwx10b


Hitachi has created a repair kit part# X480293 for this problem. It includes: (2)STK392-150 convergence ic's,resistors RK42 = 3.3 ohms,RK46 = 1.8 ohms,RK50 = 2.7 ohms,RK54 = 1.5 ohms,RK58 = 3.9 ohms,RK62 = 2.2 ohms,all 1 watt resistors.

Aug 20, 2007 | Hitachi 53UWX10B 53" Rear Projection...

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