For a while, we had to press the tactile switch many times and soon or late, the logic turned on. Then, to avoid this, we left the monitor on all the time. When the computer was turned off, the monitor was turning off but was not really turned off by its switch, the led I think was switching to an idle color, so when turning the computer on, we did not have to face any problem because the monitor was turning on.
Now, it is dead. that workaround does not work any more.
At a service shop, they told us an IC has to be changed. We do not know which one.
Can anybody help on that?
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Re: Power switch behavior
Kbzaloka: That is not a solutiom you posted. If you can't help, then don't post anything.
russolini: I'm having the same problem with a monitor on my bench right
now. I did fix another problem it had. It seems some of the
surface-mount electrolytic capacitors are going bad. I will let you
know if I solve this fault too. If anyone has lines going through their
display, and the sides look ripped or torn, your pixel clock is not
working correctly. Try replacing the 22uF capacitor C46
right above the pixel clock generator IC09. This should smooth out the
3.3V supply for this IC and correct the problem.
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Sounds like the tactile switch is faulty. You know on a telly remote, you press the button to select the channel....well the switches on the monitor are the same. Behind the switch is a rubber contact which has a conductive contact which you must not clean( as such) it sounds like this is in permanent contact with the conductive elements inside it. As the switch is probably only 5mm x 5mm, it is a tricky DIY job to put a new tactile switch in, but easy for someone who does electronics.
It's on the bottom of the computer manufacturer logo screen.
Now press the CTRL and ALT and DELete keys at the same time. Restarts the computer.
JUST AS SOON AS IT STARTS, start tapping on the enter BIOS Setup key. Tap in 2 seconds intervals.
If you hear beeps ignore it. These are Stuck Key Error Code beeps, and it is you that is making them.
Still No? Turn the computer off by holding the Power On button in, for 10 seconds. WAIT 20 seconds, then press the Power On button.
AS SOON AS YOU PRESS the Power On button, start tapping on the enter BIOS Setup key. The rest is above.
[The time period to enter BIOS Setup goes by F-A-S-T! As soon as you see the computer manufacturer 'splash screen', (Logo screen), it may be TOO late. The above method makes sure you get in BIOS Setup ]
Likely the tactile switch which is under the button is worn out because of the repeated pressure. Do the charging lights or any lights light up? If it is the switch "which is essentially another smaller button under the power button" then the best advice is to get a new/used power board strip which has the power button on it and often others as well.
hi its a bit late but someone might benefit from this. Make sure that u CLOSE dvd cover.
Make sure that there is no disk in. CLOSE dvd cover. Press power on on remote. if dvd goes into standby press power again. unit will be searching for a disk. as soon as player says NO DISK (heres where u have to guess since the bloody thing is closed) press PAUSE then press 314159 in quickly. Now open and voila the screen will read current region whatever...next press 0 then PAUSE and finally Power key. it worked for me after trying a billion times the 314159 thing.