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I need to know the value resistor rz145 and rz144 on the convergence board for this model PCN5425RX/XAA

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You can buy the service manual:
http://www.manualuniverse.com/manager/products/manualExp.asp#mrcI

Are the resistors burnt out and too black to see the colour code?

Posted on Mar 25, 2008

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1 Answer

Signal board model PCN5425RX/XAA


sounds like the little pixels have burnt out. also go to the website of the place you got it from and type in the serial number it should come up with the tv you have.

Aug 01, 2012 | Televison & Video

3 Answers

Samsung sp42w5hfx stanby light flashes and clicks wont start up


first check for solder bridges on your work even the best solderers can bridge solder (even myself). if this is a seperate board. then unplug the power lead to the convergance board. if it is not a seperate board and is part of the main board then unplug just the convergance yolks turn the set on and set the convegance back to factory reset in the menu. unplug the set and return the wires back. then turn on the set you should be able to do a flash focus to return the convergance. if the set doesn't turn on after retuning the wires then check for open pico fuses or bad resistors in the convergance circuit.

May 04, 2008 | Panasonic PT-65WX51 65" Rear Projection...

2 Answers

I replaced my convergence chips and I still have a convergence problem. Its not as bad but I still cant line up the blue convergence cross exactly


Sounds like your over half way there lol..
You now need to check the resistors positioned near the convergence ic's. They are your likely problem and go bad often when the ic's fail.

They are normally about 2watt and the values will vary but normally are like .10 ohms to 1 ohm.
I cant find a schematic to give you the exact values and locations but if these resistors measure off value at all you need to replace them with the exact value of the originals.

Heres a link to resistor color code guides just in case the value numbers are not printed on the resistors
http://www.dannyg.com/examples/res2/resistor.htm

Good Luck!!!

Nov 24, 2010 | Panasonic PT-53WX42 53" Rear Projection...

1 Answer

I need to find the value of rx50 rx54 rx58 on hitichi dp1x convergence board


The DP1X was used in various Hitachi Models and those resistors have different ratings depending on the Model number. Post your model number and I can list the ratings for those resistors for you. Also do you mean RK50, RK54 and RK58 as those are convergence resistors board location prefixes that usually get blown. Double check the Prefixes.

Nov 26, 2009 | Televison & Video

1 Answer

HCN4727W with Convergence issues


Mike,
The ICZ designations on that board are two Sanyo STK392-040 amps used for convergence. Rz142 through Rz145 are the yoke return circuit are 3.9 ohm 1/2w resistors. CZ140 and 141 are two electrolytic radial 22mf/50v caps in the feed circuit for those amps.
My question would be - and I've NEVER seen this, in my 30 years in electronics, what caused such a domino failure? The amps are basically LV fed by a +/- 24v line input. If the yoke(s) were to short shouldn't cause enough feedback to destroy the convergence board in the manner you've indicated here. That's a P58A chassis used in several models of the Samsung and Akai designs. Only trouble I've heard of with those boards are cooling and most techs have taken to installing cooling fans directly on the board, driven by the +/- 20v line. That drops the temp several degrees and allows the amps to operate at a much cooler temp. We rebuild those boards here on a daily basis and add the mods for greater reliability. But other than that the P58A is considered a bullet proof chassis.
Hope this helps!
Bill

William Rayburn, CET
Premium Technologies
PO Box 442
Long Beach, WA. 98631
360-642-4993

Sep 09, 2008 | Samsung HCN4727W 47" Rear Projection...

1 Answer

HCN4727W Convergence issue


Repalce STKs with 392-040 resistors should be 3.9 ohms,also you might want to join Repairworld it is for members who have TV shops over 7,000 different shops / lots of good techs there.They will not put up with anyone just looking to repair there own tv .Sorry unable to help with cz140,141.will do some checking you also can order whole convergence board.

Sep 08, 2008 | Samsung HCN4727W 47" Rear Projection...

2 Answers

Samsung model#PCN5425RX/XAA, picture looks like a 3d movie without the glasses. I can replace the board myself but want to make sure I order the right one. The board I think I need is part#...


Save yourself some money. The typical parts are the convergence ICs. Replacing the ICs will retain the particular adjustment values for your set and avoid a complete convergence adjustment. Look for the large black ICs on the board. They should be STKxxx. Try resoldering the pins first. If that fails to resolve the problem, replace the ICs being sure to use plenty of heatsink compound between the ICs and the heatsink.
Keep us posted.
Dan

May 12, 2008 | Televison & Video

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...

2 Answers

Hitachi Model 43FDX20B


Convergence IC's are at locations IK04 and IK05. There are some resistors that will be burnt up on the board as well. Replacement IC's are stk392-150, and are easily purchased, even off ebay. For the resistors you may have to get the location numbers and research the value. If you need the resistor values you can email me and I will get you the info.

Mar 04, 2008 | Hitachi 43FDX20B 43" Rear Projection...

2 Answers

Samsung projection tv convergence problem


I was just working on replacing my stk's and was wondering if you could tell me what value the resistors are? Here is my previous post if you would like to see it. http://www.fixya.com/support/t191186-blue_out

Sep 12, 2007 | Samsung HCL4715W 47" Rear Projection...

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