Question about Hitachi 51SWX20B 51" Rear Projection Television

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Thanks for responding Slinteriors

The board location of the resistor in question is RK46.

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  • Hitachi Master
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RK46 is a 1.8ohm 1watt metal film resistor (flameproof)

Posted on May 10, 2008

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Hitachi 61swx10b HDTV - Convergence problems. User 'gdroukas' mentioned in a post that it is probably the convergence amps and a few resistors that have changed value. Can anyone be a bit more specific? ...


Convergence ICs are Big Black ICs and will have the part number on them. STK392-110,
upgrade to 120s or 150s better ICs.
Resistors to replace are RK42 3.3ohms, RK46 1.8 ohms, RK50 2.7ohms,RK54 1.5, RK58 3.9 ohms. RK62 2.2ohms
Mats Electronics has STK ICs 1-800-628-1118 order convergence Kit that comes with resistors.
ACME has the Convergence resistors they must be 1 watt resistors 1-800-575-9833

Let me know if you need any more help Thank You.

Jan 13, 2011 | Televison & Video

2 Answers

I have a 54 inch Hitachi 57G500. The picture is now showing double on the blue spectrum color and auto magic focus is not fixing it.


Most likely this set has bad convergence amp ic's and some open resistors. This can be a very tricky repair. Check:
resistors RK42, RK46,
RK50, RK54, RK58, RK62
Output STKs IK04, IK05.
Hopefully this will help. Thanks for using fixya.

Jan 14, 2010 | Hitachi 57G500 57" TV

1 Answer

I changed the IC chips on my hitachi 53uwx10b tv like you guys said that helped alot but still have wavey lines on both sides of the screen what do I change on the con. board now? Thanks alot Jim


Resistors " RK42 3.3ohms
RK46 1.8ohms RK50 2.7ohms RK54 1.5ohms RK58 3.9ohms RK62 2.2ohms After you replace all of them then enter convergence by pulling OFF bottom front panel there on front of convergence board is a small blue button press it and a convergence pattern will come up now aline each color red then blue.

Sep 24, 2009 | Hitachi 53UWX10B 53" Rear Projection...

1 Answer

1.5 ohm resistor rk 46 keeps blowing


You should have put the original OEM STK's in the set - if your set had 110's or 120s put those chips only. Do not risk different chips with different specs/amps/ etc....when you do resistors blow as you have discovered.

Feb 25, 2009 | Hitachi 43FDX15B 43" Rear Projection...

1 Answer

Hitachi 53uwx10ba


ok
upgard the stk392-110 to a stk392-150
note use flame proof resistors 1W
rk42=3.3ohm/rk46=1.8ohm/rk50=2.7ohm/rk54=1.5ohm/rk58=3.9ohm/rk62=2.2ohm
regards,
daniel.

Jan 07, 2009 | Televison & Video

1 Answer

Hitachi tv 43uwx10b


RK46 is a 1.8 ohm 1watt metal film 5% tolerance resistor

Jul 14, 2008 | Hitachi 43UWX10B 43" Rear Projection...

1 Answer

RK46 Changed - Still have clicking diode then the board dies.


I would check the standby voltages and see if they are correct and then move on from there. The flyback will usually have signs of heat around them, however that model really isnt famous for trouble some flybacks. I would check the supply voltages for sure that could give you a better leg to stand on as far as determining if a repair tech should be called in or not

May 14, 2008 | Hitachi 51SWX20B 51" Rear Projection...

2 Answers

Resistor ohm values??????


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

Aug 28, 2007 | Hitachi 53UDX10B 53" Rear Projection...

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