Most likely that any one of the buttons is stuck on possibly even on the remote(common due to liquid spill,dog chewed etc) try taking the batteries out to isolate rc. If not lightly try each button and feel if one is slightly sticking or softer touch likely to be the offender Sadly if multiple operation does not clear then unless proficient I suggest you do not try to strip down
SOURCE: sony lbt-x5g500
Power protect tends to mean the main power amp chip has "blown" and needs to be replaced. It only costs about 20 dollars (10GBP). If you are handy with a soldering iron it is easy to do (after you get the thing to bits !) It is the big black thing on the big heatsink inside. The Sony part number is STK442 - 130. Seems a waste to throw the whole thing away for the sake of 10 pounds !. Hope this helps. Nik Howell ([email protected])
SOURCE: Sony LBT W5000
when the hi-fi is off and there is the sony demo push "display" on your remote.. yep yep. peace
SOURCE: pushed power protect
speaker protection turned on.it can be happend because of bad power amlifire section.can you remoove the powe ramp board with large heatsink.its very easy to repair.and i can help.
nuwan
SOURCE: Sony LBT W5000
According to Page 46 of the LBT-W5000 Operating Instructions:
"The display stars flashing as soon as you plug in the power cord even though you haven't turned on the system (demonstration mode).
Press DISPLAY (for LBT-W5000 / W300 / XB700 / XB500) or DEMO (STANDBY) (for other models) while the system is off. If the system is in the Power Saving mode, press POWER SAVE / DEMO (STANDBY) (for LBT-W5000 / W300 / XB700 / XB500).
The demonstration appears automatically the first time you plug in the power cord, or if there is a power outage lasting longer than half a day."
I tested this today, as my LBT-W5000 was in Demonstration Mode. It definitely works. The only catch is (at least on the W5000), and it's a minor one, you have to reset your clock afterwards.
SOURCE: Sony MHC-57AV - System shuts down "Push power protect button"
this problem is audeio out put is sort .pls ching out put STK .Any Q - My ID [email protected]
any sony music system problem
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