Question about Samsung PCN5425R 54" Rear Projection Television

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Red picture tube broke at the yoke

Received this tv for free. worked for the first night next day the red was going on and off for a while, then on super red with  a curved picture when it poped and shut down. I said to myself I can fix this ,I went to school for this kind of stuff. Proceded to take back cover off and take look,  after i checked this site for clues I pulled the red plug with blue wires and tried to turn the set on. When I hit the button for the third time I almost soiled myself when  the neck of the picture tube fell. I also noticed what must be coolant had squirted out the breather hole and ran down the side onto the circut board below and looks like it may have done some damage. there is one small greenish-black spot size of a pea going under a capaciter and the board looks wet in that area.Why did this happen? One more thing,the tube part number is P16LFM00RFA(TU)  what is the diference of this # and that # with (AU), and what about using a tube from a green or blue  and change out the lens? (with matching #'s from blue or green).

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5 Suggested Answers

premtech
  • 934 Answers

SOURCE: Samsung Rear Projection HD tv IC convergence green only messed up now. Help please

To check the pico fuses you're merely testing for continuity. If you get an infinate reading you're in good shape - if it doesn't budge the meter the fuse is open... That's a really easy set to work on for convergence problems - the convergence board is easily removed..
Another cause for mis-alignment like that are the youke return resistors... There are several out front of the convergence amps that may have changed in value. They are 3.9 ohm - 2w resistors and will look identical to Rz123 and Rz124 (same banding). For those simply select a low ohm setting on the meter and check to see if any of them have some way low or way high reading...
Need anything else just ask...
Bill

Posted on Dec 10, 2007

SOURCE: SAMSUNG PICTURE FREEZE (LOOKS BLACK&WHITE)

got mine working better unplugged the sound and wiggled the plastic coated wire above the large fan works but freezes maybe once in a day some days never have the sound running through the receiver (surround) I shut it off and it comes back on when it does freeze figure loose connection

Posted on Jan 06, 2008

  • 163 Answers

SOURCE: RED OUT OF ALIGNMENT

Smack it on the back closest to the board (Not Hard)..to see if its a Cold sloder joint issue.. (Trust me I've seen issues).. Also Not familiar with the model is it Flat Plas, CRT, LCD?

Talk soon....

Posted on Feb 06, 2008

  • 98 Answers

SOURCE: Color issues

yes try this above links

please check out this links

for convergence board ics reparing it your self

http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm

and for convergence settings

http://www.somelifeblog.com/2007/06/sony-projection-tv-red-line-repair.html

thanks.

Posted on Oct 13, 2008

CAYPIANAN
  • 227 Answers

SOURCE: HCJ552W 55' samsung rear project....won't turn on

dear friend you have a power supply problem, get one of those cheap meters and open the set, look for a blown fuse, if they are ok wich i doubt, you have to call the repairman.

good luck


caypianan@yahoo.com

Posted on Oct 23, 2008

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Hello

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2c07611.pngSolution #2


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1 Answer

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chris

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http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm
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http://www.techlore.com/article/19631/Sony-Convergence-Procedure/

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