Can anyone tell me what component I need to fix my projector, and if it is difficult to do OR at least a good cheap repair company in central london. The problem is it has now decided there is 'no signal' from my laptop. I know all the settings are correct, as sometime the picture it there for 5 seconds and then it decides there is 'no signal' again.
If you have no signal the problem is usually a bad connection between projector and laptop. Try gently moving the lead at the laptop and the projector. I would suspect the laptop first as the connection to the circuit board is quite fragile. Try plugging a monitor to the back of the laptop, if that works, another computer on the projector
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Try fixfault.com to fix video projectors.