Hi all, my system has just died , was working fine, movie flickered a couple of times then the whole system just stopped !, no power anywhere, checked powerboard fuse and its fine, so stumped now , suspect i need replacement power pwb part number 1- 682-284-42 ( i think) but i can't find a replacement anywhere ..
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Re: Power problem - total power failure
You need to make sure that power supply has fried. It requires to check output voltage by volt meter. What is the exact model number of your Sony home theater system to guide you properly. Is it DAV-S500 or some thing else.
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Hi Anthony, sounds like there is a bad connection from upper to lower, a pinched or bad cable, or bad solder on a connection point.
With the "flickering" of the console lights mentioned, this tells me that the power supply connections to the console were suspect at one time, and doing nothing and having it "work ok now" is not a good sign of something being fixed. Also, with the flickering, this would mean the upper board would be intermittently powering up / down, causing massive trouble with the onboard CPU which is trying to operate the system. I would advise against using the unit the way it is, and have the control board checked. You can contact jatinah electronics for further help if needed. Good Luck!
if you had lightening activity in your neighborhood, and the system was plugged into a wall socket, it may have suffered a power failure and thus, the power supply has been affected by current surge. If the PC system is one year or less, refer to contacting HP techsupport for support : you will have to replace the power supply
Hi, If you were getting the error message that the computer was overheating, you were lucky that it kept on going still . I would suggest to get the chassis fan replaced and then check.Most likely the chassis fan has died leading to the computer not starting .The extended overheating might even have caused a motherboard failure. As the AC adapter and power button light flickers
Probably caused by a power supply nearing its death.
Try to verify this by placing a portable fan to the side of the set with airflow directed at the vented sides.
If this lengthens the operating time, there is a good chance that some minor components in the main supply have developed low values of capacitance and higher losses which worsen with warmth.
Listen closely at the vents with the sound turned down to attempt to detect a squealing sound while the TV is in its failure mode; if you find this, it is also a sign of power supply trying to die.
A tech equipped with a capacitance meter that measures losses at the same time, could find and replace the weakened parts without a whole lot of labor and little cost for parts.
One of the motors in the mechanism died making a near short circuit. When the DVD tries to energize the motor, a lot of current passes through the circuits making the PSU protection to shut down the power supply to avoid damage or fire. To get the movie out, you'll have to disassemble the DVD player and remove the disk. After that the DVD will be unusable because of the failing motor. The replacement often is more expensive than buying a new Chinese DVD player.