Question about Samsung PCN5425R 54" Rear Projection Television
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).
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...
Posted on Dec 10, 2007
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
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?
Posted on Feb 06, 2008
SOURCE: Color issues
yes try this above links
please check out this links
for convergence board ics reparing it your self
and for convergence settings
Posted on Oct 13, 2008
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