Question about Pioneer SD-582HD5 58" Rear Projection HDTV-Ready Television
Hello - I have a SD-582HD5 Pioneer Rear Projection TV Monitor - it would not power up. So I looked at the back and fuses FU204 (5A/125V) and Fuse FU202 (6.3A/125V) blow out upon power up.
I called a repair service but the cost of repair is high. Is there a way to isolate the problem.
Comment by rdcorbet, posted on Nov 15, 2007 Is the system board the board with the fuses? The board # is V1808A. If not could you refer me to the proper board and part number so I can locate it? Also, I was wondering if I was to take the board to a Technician I work with who does repairs on circuit boards could he repair my existing board? Is is possible to get the schematic of that board?
Comment by rdcorbet, posted on Nov 15, 2007 Yes, I have electronic trouble shooting skills. I would appreciate instructions to fix the problem.
what is the next step?
Comment by rdcorbet, posted on Nov 15, 2007 Are you able to walk me thru trouble shooting the problem?
Comment by rdcorbet, posted on Nov 15, 2007 I mistakenly hit accept. Is this case still open? Am I able to get assistance?
Best Solution posted on Nov 15, 2007
Rating: 82%, 215 votes
Good day sir! if you have knowledge in electronic trouble shooting, ican give an instructions to fixed this trouble!
But if you have no experience in electronic trouble shooting much better to call a qualified technician in this site near you! just type www.fixya.com then go to find repairman.
Comment by likha, posted on Nov 15, 2007 yes! your board is repairable! but dont replaced the board if its not completely diagnosed! but i think you have shorted power Regulator need to replaced! but im not sure! as i said your TV nedd to diagnose first!
Solution #2 posted on Nov 15, 2007
Rating: 78%, 86 votes
Its the power pack on the system board. It has a short in it and causes the fuses to blow.....if your farmilar with replacing it you can order the part though the manufacturer.
Hi you guys well this is a comon problem with pioneer most boards have lots of cold solder connections this will also make the symptoms like blown h-out mark all the connections on the powersupply board connections meaning all the wires you seethat connect to the board then remove the board from the tv this will make the repair more easy for you then look very close eventhough you might think that there is no broken connection there might be so go over this very carefully and slow make sure that you dont create any solder bridges after you have done his then you must go to the regulator cuircuit you might have some connections there ok now we are going to find the horizontal output transistor this guy is located neer the flyback transformer this (fly) sort for flybacktransformer is a big black looking transformer with a red wire comming out of it DANGER you are in the high freqency part of your tv pic tubs may store electricity this will make you think twice befor messing with tvs again ok this transistor is mounted to a large heat sink sometimes by it self check with vom meter in diode mode from collector to emitter then emitter to base if from collector to base reads short then it is bad if from collector to emitter it is bad the only short should be from emitter to base replce fuses and try again hope this helps
Posted on Nov 15, 2007
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