Hi, The problem that I have is that the way to switch is broken, I put a patch betwen the switch and another component but the problem is the same. Coul you want tell me , what components that I have to check please?
You mention that a switch is broken? I am assuming that you mean the power switch for the monitor? If so, then you can probably get the manufacturer and model, look it up on the web and order a new knob or switch from manufacturer. If this is not an option, then you will probably have to take the monitor apart to see what part of your substitute button is not touching, b/c what a button does it activate a special area on a circuit board that connects or disconnects power to its specificed area (where the button is sitting)
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warc619, Maybe the "button" is only thing broken. Maybe the "switch" is broken. Yoyu will need to see if you can view some video clips of monitor disassembly and repair at YOUTUBE first. Then you will need to "teardown" your unit and determine exactly what component(s) have failed and if you can get new exact same size unit from "Digikey" or "Radio Shack" or "Mouser".... WOW! you may even need to learn how to carefully desolder the bad switch and solder in the new one. Good luck with the repair. You didn't tell us what type of monitor you own!! CRT or CCFL back-lit LCD???? 12fixlouie
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Most likely a power supply component has aged and thus changed value and/or
failed. Take it to a reputable repair person.
yamakasi86, This could really be nothing more than ONE POOR quality solder joint on a printed circuit board on the lead of a power transistor in the CCFL inverter circuit. Go to YOUTUBE and learn how other's have learned to deal with poor quality soldering of printed circuit boards. Yes, it sure seems like a "thermally intermittant" solder connection of some component. Have a tech open it if unit is out of warranty, to check visually with microscope for frosty looking solder joints. You KNOW they don't fix them with keystrokes or software patches, don't you know!! 12fixlouie PS could also be bad filter capacitors!
this sounds like an electrical fault or failing component, within the Monitor.
Check the cabling, to ensure it,s not damaged-broken-kinked et,c. by carefully moving the cable gently side to side and up and down.
If it puts itself right for a second or two. you can assume its a broken internal wire, within the lead.
Or a dry soldered joint-Connection.
There are two reasons why capacitor blow up is higher voltage than it can take or higher temperature than the mark on the capacitor.When I repair psu I always change ALL capacitors,primary and secondary section.Bad capacitor in primary section is usually reason for overvoltage in secondary.Fuse is in power line of 820mF.As I remember they are paralel connected so follow +line back to the diode.There is a small green component looks like resistor betwen diode and capacitors.
Same thing is with other two monitors princip is the same.
There is an On Display Menu (ODM). You can access it by pushing the button located on the monitor. Use +- buttons to navigate in the menu. Here you can switch off the sleep mode or change the sleep settings. I have a simular problem... I try to turn off the power save function but it seems like it dosen´t want to understand this...