There was a power cut due to a tree falling on the wires, now my PC monitor doesnt work. Its got a green light on but no picture.
What is likely to have broken, and can it be fixed?
[george]- posted
10 years ago
power surge then monitor fails
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- posted
10 years ago
On Saturday 28 December 2013 11:58 george - dicegeorge wrote in uk.d-i-y:
Likely something in the power supply - I assume this is an LCD panel?
Have you got another monitor or TV with VGA to test the PC is actually producing a video signal?
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- posted
10 years ago
How are you going to see any replies :-)
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- posted
10 years ago
yes i've swapped monitors. Could the green light be on in the monitor if the power supply is broken? [g]
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- posted
10 years ago
I don't have my divining rod to hand and the Crystal ball is at the polishers. What sort of monitor is it?
Brian
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- posted
10 years ago
How many conductors in the psu cable? IE is it seperate or internal. If only two and its seperate, you might be able to get a replacement, but really, you need another monitor to test which bit is bust, monitor or psu.
Brian
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- posted
10 years ago
Its probably the back light, he is probably shining a torch in the back. grin. Brian
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- posted
10 years ago
On Saturday 28 December 2013 12:54 george - dicegeorge wrote in uk.d-i-y:
There are usually several power rails at different voltages - one may be knackered whilst another may be OK.
Could be the backlight or backlight supply?
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- posted
10 years ago
memorise the key presses required to print them ?
G.Harman
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- posted
10 years ago
Quite. The OP should shine a light at the screen and examine it carefully for a faint picture. Sometimes dead monitors are not as dead as they seem.
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- posted
10 years ago
Always worth checking is that.
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- posted
10 years ago
The most common failing is the backlight inverter on LCD screens. Sometimes if you play a bright light on the screen and look closely, you will see there is still a picture there, just not backlit.
Some backlight PSU problems are easy to fix. Often just borked capacitors, sometimes the inverter output transformer (£10 / ebay normally)
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- posted
10 years ago
So no basis for the powersurge claim. Power cut, sure.
Most common fault failed psu caps.
NT