Question about Toshiba 53H71 53 in. Rear Projection Television

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Reference designator If all the resistors on my convergence board are labelled RK or RH etc, an then I have this CK reference designator? looks eactly like a resistor, is it a resistor or is the change in designator because the component is something else? my tv is actually a hitachi 46F500 posted the question at the wrong place sorry

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Normally for the refecence designators, the firs letter is the one that will say the part you should have there and the second letter is refering to the material that was used to make those components.


Posted on Jul 24, 2008

  • Jaime Hernandez Jul 24, 2008

    If you have the equipment or know how to measure those components it will not matter what is written down as reference designator because in many cases the manufacturers can make modifications to their original design but did not change their gerber files to manufacture the PCB.

  • Jaime Hernandez Jul 24, 2008

    Thank you for the rating.

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As stated in your response to another person (Hitachi 43UWX10B)


Your post didn't get attached to the message in which you read the 'fix' for your set so the person who helped, will likely never see it.
You might try re-entering your brand/model info and sort through the results to find the original message.

Oct 24, 2009 | Hitachi 43UWX10B 43" Rear Projection...

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RK46 BURNT CANNOT SEE COLORS ONLY 2 STRIPS DARK AND 2 STRIPS LIGHT. WHAT IS THE OHM VALUE AND DO I INSTAL GOLD STRIPS TOWARDS IC OR AWAY. HATACHI 43FWX20B DP24 JOE


rk46 is 1.8 ohm resistor---rk54 is the same value, rk 62 is 2.2, and Rk 42 is 3.3 ohm. It does not matter which direction it is installed---it is a resistor


If you have any questions feel free to let me know.


SD TECH

Oct 08, 2009 | Projection Televisions

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Red color distortion hitachi 46f500


Can't remember which this one uses but its right on the chips. Check your resistors too.

Apr 08, 2009 | Hitachi 46F510 46" Projection HDTV

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Burn RK 99 rezistor convergence board


Thanck you for your help i got repaire book

Mar 18, 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.

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1 Answer

Convergence on Hitachi 61swx12b


Hello,

Check what is happening when you press flash focus?It completes 1 full cycle or not?
If not complete 1 full cycle check small value resistors on convergence board.All RK series resisitors..

Dont Forget to Rate!

Good Luck
Dals123

Oct 16, 2008 | Hitachi 61SWX12B 61" Rear Projection...

2 Answers

Already changed two big STK's and checked resistors . . ..


another problem that you want to check with the convergence board when replacing amp I/C's is to check the resistance of the resistors next to and around I/C's as I also had 2 that were very high resistance,like 3.8 meg-ohm,they were resistors rk-50 and rk-54 located on board.They should have been 1.4 ohm and 3.0 ohm,not 3.8 meg-ohm.
did you use the same IC's numbers and did you get OME part and not generic?

Dec 14, 2007 | Panasonic PT-53TW53 53" Rear Projection...

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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...

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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