Question about Hitachi 50EX20B 50" Rear Projection Television

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Hitachi resistor value

I need values for resistors r1363, r1364, r1338, & r1339 for a Hitachi 50ex20b. New STKs but no control of any color at the board or remote. thanks

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Re: hitachi resistor value - Hitachi 50EX20B 50" Rear Projection Television Projection Televisions


Posted on Dec 05, 2007

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What's the value of resistor RK42 on the Hitachi 57F500A?

3.3 ohm/ 1 watt / metal oxide. HIT p/n: AT03202S -- red hor. conv. -- from IC ik04 (STK392-110/150)

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How do I locate resistor values?

Click HERE to download service manual copy for free. Download all 12 files and unzip with winrar to get pdf file.
Hope this will help you to find out required resistors value.

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Tv does not turn own, red power button just flickers

Replace your STKs they are big black ICs will have part # on them STK392-110 if 110s use 150s better ICs also you need to CK small ohm resistors rk42 rk48 rk50 rk52 rk56 rk58 rk62.I will have to get back to you after i find correct value of resistors.

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Pioneer SD533HD5 Convergence Issue

All the values and resistors are part of the Hitachi kits on

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Check for bad resistors low ohms near your STKs big black ics.

May 04, 2008 | Hitachi 50EX20B 50" Rear Projection...

3 Answers

Need resistor value for RK62 on DP2X board for 57SWX20B

RK62 is a 2.2ohm 1 watt metal oxide resistor hitachi part number 0700054M any 2.2ohm 1 watt resistor will work although it does have to be metal oxide(flame resistant) for safety purposes.

Mar 24, 2008 | Hitachi 57SWX20B 57" Rear Projection...

1 Answer

Convergence pots do nothing

Check B+ sources--possible open fuse device== that will cause out of alignment/no control.

Oct 02, 2007 | Hitachi 50EX20B 50" Rear Projection...

4 Answers

Colors all messed up

The fact that you used the term "magic focus" tells me you have a Hitachi projection set. When the colors no longer line up on a Hitachi projection TV, it means that most likely one of the convergence output IC's has shorted out. Sometimes a shorted convergence output IC will burn up a low value resistor too. I have also seen a convergence IC crack loose from the board and burn up 3 low-value resistors. If your set is using the STK392-110 IC's, it is probably a good idea to go ahead and replace both IC's with the newer upgraded STK392-150 IC's. The output IC's should be resoldered / replaced and the circuits checked and realigned by a qualified tech familiar with Hitachi projection sets.

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2 Answers

Resistor ohm values??????

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

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