Question about Pioneer SD-582HD5 58" Rear Projection HDTV-Ready Television
When I turn the set on, with the remote, The set turns off right away. I then have to cycle the main power switch from off to on and it does it again. It used to shut off once in a while and I would cycle the main power switch then it would function immediately after that. Then it degraded over about 3 months until it doesn't come on anymore. I see there is several other owners with the same problem. This is indicative of a design defect. Has anyone consulted the company about this?
That is an all too common problem in that model unit and I'm sure the manufacturer knows about it vividly, but would never admit knowing...
Pull the SMPS and inspect closely for ring-cracked solder connections. Use some really good magnification. Especially solder all of the heatsink mounted components and all pins on the smps transformer even if they don't look suspicious. Test fuses F201 (6.3a) & F202 (5a) for open and replace if necessary.
Lastly ESR any caps 100uf and above. There is a particular 1000uf cap, I believe near the transformer, that is almost always in need of replacement.
Posted on Dec 03, 2007
Rear projection HDTV have been popular about 5 years ago. Most of them use the convergence chip STK-392 110 ( 11 watts) , it is recommended by pioneer to replace these chips with a newer chip STK 392 180 ( 18 watts) more expensive. These chips STK 392 110 goes bad sooner or later. If you replace them, replace both of them . THey are mounted on BIG heatsink . Look for them at the big heatsink . They have 18 pins . It is not too bad to desolder them and remove them. When these chips goes bad, they cause a few fuses to blow up.
Please check all fuses before plug in.
Posted on Jan 05, 2008
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