Fist off I am a newbie who has an out of convergence Hitachi . After lots of reading I found out I had convergence issues so I ordered 2 STK392-150 (I read it is an upgrade from the STK392-110) but I am unsure about the ohm values for resistors RK42, Rk46, RK62, RK58, RK54 and RK50. Does anyone have schematics for my TV or know the values? Thanks

Re: Resistor ohm values??????

RK42 = 2.2 , RK46 = 1.5 , RK58 = 3.3 , RK52 = 1.8 , RK 50 = 2.2 , RK54 = 1.5

Posted on Aug 29, 2007

Re: Resistor ohm values??????

Rk 54 resistor value for an hitachi 43FDX01B

Posted on May 02, 2010

SOURCE: 65xwx20b

i need value for RK62, resistor burnt and cant see colors. on DP2X board 57SWX20B near the green STK connector.

Posted on Mar 24, 2008

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

Testimonial: *"thanks for the quick response and info. it was helpful."*

If the problem is exactly like before one of the protect resistors is bad.

The color bands denote value in resistance and usually it will be a 1.2, 1.5 or 2.2 ohm resistor. You check them with a ohm meter, like checking a fuse--any that has no reading across it is gone.

Usually they will be discolored but sometimes they open so fast they do NOT discolor.

There are only about twelve of them and many are higher values--150 ohms or more==always it is a low value resistor that opens--it is what it is there for--a chip shorts in some way and the resistor opens to protect the power supply that feeds it.

Looking is not always enough, you have to check them. If this is helpful a rating would be appreciated as I do this here for free.

I am available to assist you if you need it.

SD TECH

The color bands denote value in resistance and usually it will be a 1.2, 1.5 or 2.2 ohm resistor. You check them with a ohm meter, like checking a fuse--any that has no reading across it is gone.

Usually they will be discolored but sometimes they open so fast they do NOT discolor.

There are only about twelve of them and many are higher values--150 ohms or more==always it is a low value resistor that opens--it is what it is there for--a chip shorts in some way and the resistor opens to protect the power supply that feeds it.

Looking is not always enough, you have to check them. If this is helpful a rating would be appreciated as I do this here for free.

I am available to assist you if you need it.

SD TECH

Jun 10, 2010 | Hitachi 53SDX89B 53" Rear Projection...

This site has been very helpful in diagnosing and repairing my Hitachi 57XWX20B. I recently changed the IC's and a resistor to fixe a convergence problem and had to use the small button on the convergence circuit to get set to return from static mode and enter dynamic mode. I searched everywhere trying to locate the correct resistor values and noticed many other's needing the same information. Here are the results of my research. I obtained some from manuals and others from comparison of the different models. My main focus was finding the values for the 57XWX20B. The resistor values are given in ohms at 1 watt. This means RK42 is a 3.3 OHM 1 watt resistor. RK58 was the problem in my set. It was giving a value of 2.3 and needed to be 4.7. I first replaced the IC's and thought the resistors were all good, but I later noticed my convergence was off. I could manually align it but the magic focus initiation would not save. It gave an overflow error. I bought the sanyo brand of IC's, not the cheap inports and found that if you use a desoldering wick then the repair is easy. The new IC's restored the beautiful color the set had when new. Now it is brilliant as well as converged. My repair cost was:

STK-110 13.00 Bought from local electronic supplier

STK-150 15.00

RK58 3.00 Bought from a local TV repair shop

The elecronic supply store gave me 6 inches of desouldering wick

Total cost: 31.00 Dollars

**51UWX20B DP23**

57UWX20B DP23

51GWX20B DP23G

57GWX20B DP23G

43FWX20B DP24

**51XWX20B DP23**

**57XWX20B DP23**

**51SWX20B DP27**

**57SWX20B DP27**

**65SWX20B DP27**

**57TWX20B DP27D**

**65TWX20B DP27D**

DP 23 DP 24 DP 27 RK42 3.3 3.3 3.9 RK46 2.2 1.8 1.8 RK50 2.7 3.3 2.7 RK54 1.8 1.8 1.8 RK58 4.7 4.7 4.7 RK62 2.7 2.2 2.2

STK-110 13.00 Bought from local electronic supplier

STK-150 15.00

RK58 3.00 Bought from a local TV repair shop

The elecronic supply store gave me 6 inches of desouldering wick

Total cost: 31.00 Dollars

57UWX20B DP23

51GWX20B DP23G

57GWX20B DP23G

43FWX20B DP24

DP 23 DP 24 DP 27 RK42 3.3 3.3 3.9 RK46 2.2 1.8 1.8 RK50 2.7 3.3 2.7 RK54 1.8 1.8 1.8 RK58 4.7 4.7 4.7 RK62 2.7 2.2 2.2

on Apr 02, 2008 | Hitachi 57SWX20B 57" Rear Projection...

RK42-2.7ohms

RK46-2.2

RK50-3.3

RK58- 3.9

RK62-3.3

RK46-2.2

RK50-3.3

RK58- 3.9

RK62-3.3

May 03, 2010 | Hitachi 65TWX20B 65" Rear Projection...

This model uses two of the STK-392-120 CHIPS and here are most of the usual resistors to suspect or check:

Hitachi**AT03411S **
RK43
RESISTOR
Hitachi
**AT03608S **
RP22
RESISTOR
Hitachi
**AT03195S **
RK46,RK54, RK62
RESISTOR, 1.8OHM 1W
Hitachi
**AT03857M **
R815,R865
RESISTOR, 1/2W 100 OHM
Hitachi
**AT03191S **
RK50
RESISTOR, 1W 1.2 OHM
Hitachi
**AT03197S **
RK50
RESISTOR, 1W 2.2 OHM
Hitachi
**AT03199S **
RK41
RESISTOR, 2.7 OHM 1W
Hitachi
**AT03202S **
RK42
RESISTOR, 3.3OHM 1W
Hitachi
**AT03204S **
RK58
RESISTOR, 3.9 OHM 1 WATTThe RK ones are all marked on top and bottom of circuit board---usually if one is bad you will be able to see it is discolored---all are very low value and should read open or good only.

This is a fairly easy set to do this on---the whole convergence board (right side from the back view) is held in with 3 screws and an assortment of plugs--3 plugs are identical (convergence yokes and you need to mark so you get each back in same place)

A row of black snap plugs on the left side and with the screws and other plugs removed the board will lift up and out of the set.

DON'T waste your money on one of the "kits" being sold on the net---you can buy a pair of the chips for about 12 dollars on Ebay and usually only one (if any) of the resistors will be bad---those kits sound like a good idea but at 50-80 you are buying things you will not likely need to repair the set.

Let me know if you have any questions and if this information helped you rate this solution as I do this here for free.

SD TECH

Hitachi

This is a fairly easy set to do this on---the whole convergence board (right side from the back view) is held in with 3 screws and an assortment of plugs--3 plugs are identical (convergence yokes and you need to mark so you get each back in same place)

A row of black snap plugs on the left side and with the screws and other plugs removed the board will lift up and out of the set.

DON'T waste your money on one of the "kits" being sold on the net---you can buy a pair of the chips for about 12 dollars on Ebay and usually only one (if any) of the resistors will be bad---those kits sound like a good idea but at 50-80 you are buying things you will not likely need to repair the set.

Let me know if you have any questions and if this information helped you rate this solution as I do this here for free.

SD TECH

Dec 17, 2009 | Hitachi 43FDX15B 43" Rear Projection...

RK42 is a 3.3 ohm 1watt metal film resistor

Apr 03, 2009 | Hitachi Projection Televisions

Hello, I have the exact same issue with my R49W36, I replaced the convergence chips but there are also two 1 ohm resistors with the same color pattern as yours that are bad. I have looked all over and cannot find a 1 ohm resistor anywhere. Where did you find it?

Dec 31, 2008 | Zenith R60V26 60" Rear Projection...

2.2 ohms/1 watt if you have chassis number AP74.

3.3 ohms/1 watt if yo uhave chassis number AP73.

3.3 ohms/1 watt if yo uhave chassis number AP73.

Nov 08, 2008 | Hitachi 60UX54B/55K 60" Rear Projection...

rk46 should be a 1.8 1w

Oct 30, 2008 | Hitachi 50DX01B 50" Rear Projection...

2.2 ohm 1 watt...................................T.

Jan 30, 2008 | JVC AV-48WP30 48" Rear Projection...

the value of r7050 is 2.2 ohm 2W

i might be able to email the manual but its big - just let me know and i will send it or look up anothe part # for you

thanks

scott

i might be able to email the manual but its big - just let me know and i will send it or look up anothe part # for you

thanks

scott

Sep 29, 2007 | Panasonic PT-47WX51 47" Rear Projection...

1,706 people viewed this question

Usually answered in minutes!

Thanks but did you give me RK52 instead of RK62?

Hey thanks. The kit I ordered comes with the following resistors 1.5,1.8,2.2,2.7,3.3, and 3.9 so I guess I will need to order some more? Also is it ok to use the STK392-150?

I got an email back from the place I ordered the kit from. Here is a copy of it.

For model# 53UDX10B,

To the best of our knowledge here are the resistor values.

RK42 3.3 ohm

RK46 1.8 ohm

RK58 3.9 ohm

RK62 2.2 ohm

RK50 3.3 ohm

RK54 1.8 ohm

It seems this model has 2, 3.3 ohm resistors & 2, 1,8 ohm resistors.

Again, this is to the best of our knowledge.

So I guess they must be wrong????????

It looks like RK54,RK50, and RK58 are burned up but I have not tested them yet.

Thanks so much for your help. RK54, Rk50, and RK58 were burned out and showed no value with the multimeter so I had no choice but to change them out. After testing the remaining three and finding values similar to those provided by the repair kit supplier I went ahead and changed them out as follows: RK54 1.5 ohms, RK50 2.7 ohms, and RK58 3.9 Ohms. It took me about and hour to manually adjust the convergence, (probably since it was my first time ever to try it) but it was well worth it. The picture is better than I can remember.

I'm an idiot..but with your help I can do the fix...thanks!!!!!!!! but 1 more idoitic question....what is the watts on the resistors? are the 1/2 or 1....my guess is 1/2...but we all know what guessing brings lol.....

thanks again for your knowledge!!!!!!!!!!!

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