My monitor went black and will not come back on checked pwr cord(okay) checked fuse(good) but noticed that quite a few capasitors have a white substance around them not sure if it's glue or the capsitors are shot? tried to locate another complete power controller can not find one anywhere CAN YOU HELP?????????????????
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Re: HPvs17e monitor will not power up
Hi the SMPS needs to be checked - some of the failure prone comps., Bridge Rectifier and Power Transistor check them after disconnecting power completely , the large electrolytic Cap., will hold charge even after disconnecting the power so be very careful. The substance around caps., is epoxy so as not to let them explode in the event of short circuit
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Black=0V(GND) Yellow=12V Red=5V Orange=3.3V Purple=5Vsb(everytime on) Gray is PWRGOOD or PWROK(pwr=power) must be at 5v White=-5V(optional) Blue=-12V Green is PWRon must be connected to a black wire to turn on the PSU
Check the line cord to see if it can carry power. Check the connection from the line cord to the power supply. It may be that the soldered connection is broken there and needs re-soldering. Check to see if it has any external or internal fuses that need replacing.
The power chord for this monitor is attached to a power adapter which converts mains voltage to 12 volts. Check the power label on the monitor for the amp rating of the monitor and get an adapter that has an output of 12 volts and with the amp rating on the label or higher. Make sure the 0.3" power plug fits the monitor.
Outlet - unplug the power cable and put it on an outlet on its own
Power Cord - make sure you remove the power cable from the back and plug it back in to make sure you have a good connection.
things that cause this blinking light:
Power Supply -open system and follow cables to make sure its connected well to each part.
I/O Panel - this is where the power button is at . just open the system and follow it behind the power button.the flat cable going to the mother board , disconnect it. plug the power cable to the wall and if the system starts up then the power supply is good and the the cable that you just disconnected is bad.
If it still doesn't power up remove
and start the system.
no luck then it is the systemboard.
No fuse, but they are relatively inexpensive, about $30.00. You can have yours load tested by a reliable local tech to confirm it has given up the ghost...and they'll probably be happy to supply a new one as well... Here's a startup troubleshooter that has more info if you're interested in self-testing...
I hope this information allows you to resolve this issue. If you need further assistance, please post back with a comment to this thread. If I've managed to answer your question or solve a problem, please take just a moment to rate this post....thanks!
Check the power cable/cord for continuity with your multimeter ok. Make sure also that the mains or power outlet is giving the right voltage. This is also done by the use of the multimeter - either analog or digital - any one at your disposal can do ok. if all work well, then the power supply unit should be removed from the system unit, connected directly with the power cord and then bridged. That is at the secondary output which connects to the system motheboard. Locate the power-on cable(normally green in colour) and bridge it with any black cable on the same row. The cooling fan at the back of the power unit should be rolling if the unit is ok. Good luck
First, I suggest finding a monitor first as some have an 'attached' monitor cable and some don't. (No use buing a $15.00 cord you don't need) As far as a mouse goes, believe it or not, I've found the best prices for a good mouse at Home Depot and Publix Supermarkets. E-bay and Amazon.com always have great prices on most any cord. All PC power cords I've ever seen are the same (about $11.00 at any Staples, CompUSA, Best Buy, etc.), They are will only fit PC's and VGA (old-style) monitors. Any monitor should work just fine. For used I'd suggest craigslist.com and for a new LCD you probably can't beat tigerdirect.com (new owner's of CompUSA). Any mouse & keyboard will work also. Good Luck!
first you switch on the supply by shorting (green and black )wire in output socket of smps.then check output voltages.If there is no voltage then check switching transistors or protection transistos that is placed on first hit sink.check primary bridge and capacitors for open.