Question about Sony KP-57WS500 57" Rear Projection Television

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KP 57WS500 Thank you for your guidance. Do I have to replace both the 4.7 ohm 1/2 watt resistors or the 6 pico fuses? Or I have to check each single one?

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You have to check each one, but you need to lift one side of each resistor out of circuit to test by unsoldering one leg, as a open resistor can pick up resistance from the circuit and test good when its actually open.

Posted on Jun 21, 2008

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1 Answer

Convergence is off


Check the pico fuses in front and behind the Convergences ICs STK392-110
Pico Fuses Look like resistors ,but they will be Yellow or Green 5amp -7amp fuses.
If they are Ok then you need to replace bopth ICs .
Mats Electronics has ICs 1-800-628-1118

Mar 01, 2011 | Sony KP-57WS500 57" Rear Projection...

1 Answer

Tripe image, blue, red and green color on image, not focus


you will need to replace the two STK392-560 ICs and also check the 4.7 ohm 1/2 watt resistors and the six 3.5 amp pico fuses.

May 05, 2009 | Sony KP-57WS510 57" Rear Projection HDTV

1 Answer

Sony kp-51ws500 resistors and pico fuses on d board


I can help with the PICOFUSES...they are 4 amp Pico.

As for the resistors, if ANY are burned, look at the convergence amp next to the damaged ones...those resistors are a mirror-image of the damaged ones.

You NORMALLY do not need to replace the resistors, ONLY the picofuses.

Mar 27, 2009 | Sony KP-51WS500 51" Rear Projection...

1 Answer

Convergence issue with kp-57ws500


You have to remove one leg of each pico fuse to test them properly. Same goes for the resistors. Other options is you have a bad soldering joint or a faulty STK chip still.

Jan 31, 2009 | Sony KP-57WS500 57" Rear Projection...

1 Answer

Samsung pcl5414r power resistors and pico fuses??


Hi again and welcome back to FixYa,

Appreciate the direct "Ask Me'.

Based on your original post, only the STK ICs were replaced. Presumably 392-040, the surrounding resistors and pico fuses could very well have been affected as well. Depending on the board revision (pls confirm location numbering on the actual board), the resistors could be:
RZ104 -RZ106 - 270 Ohm 1/2watt
RZ133-RZ135 - 27K Ohm 1/16 watt
RZ136 & RZ138 - 3.3K Ohm 1/8 watt
RZ146 and RZ147 - 3.9 Ohm 2 watt
RZ148 and RZ149 - 150 Ohm 2 watt
while the pico fuses would look like the image below.
90b151e.jpg
Good luck and Thank you for using FixYa.

Dec 26, 2008 | Samsung PCL5415RB 54" Rear Projection...

1 Answer

IC Convergence replacement


you will no doubt need two STK392-560 ICs and quite possibly two 3.5 amp pico fuses, and its a good idea to get two 4.7 ohm 1/2 watt resistors as well. You can get all the parts you need at the following link and they will provide free installation instructions with pictures and free online tech support while you do the actual repair if you need it. Heres the link.
http://servicemanuals.vstore.ca/

Sep 30, 2008 | Sony KP-57WS500 57" Rear Projection...

1 Answer

Trying to find the fuse and resistor locations


did you replace the picos and check the 4.7 ohm resistors / Thats usually whats wrong when the old ICs go out they take the picos and often some of the resistors as well.

Sep 22, 2008 | Sony KP-57WS500 57" Rear Projection...

1 Answer

KP-57WS500


3.5 amp picos. You can get resistors and picos at the following link and they have free shipping if you cant find them locally.
http://servicemanuals.vstore.ca/

Jun 21, 2008 | Sony KP-57WS500 57" Rear Projection...

1 Answer

KP-57WS500


If you look at the Convergence ICs you will notice a row of resistors under the fins of the heat sink. Those are the 4.7 ohm resistors. Also in that same row of resistors you will notice the 6 yellow picos they are all lined up the picos have 4 grouped together then 1 more on each end of that row or resistors.

Jun 21, 2008 | Sony KP-57WS500 57" Rear Projection...

1 Answer

Sony KP-57WS500


did you replace or check the 4.7 ohm 1/2 watt resistors or the 6 pico fuses when you changed ICs? If not thats most likely your problem.

Jun 21, 2008 | Sony KP-57WS500 57" Rear Projection...

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