Question about Projection Televisions
Try cleaning the DVD's you are using, windex and a very soft cloth like a bath towel work very good.
Cleaning the lens is also important, but if neither of these help you need to have it serviced by a professional. There is no other easy fix for DVD or CD players. If the laser pick up is not reading the disc, it needs to be replaced. It is not always the laser pick up at fault, but it is the most common problem. If it is something other than the laser pick up, a properly trained technician can figure that out. It requires the proper tools like an O-scope, multimeter and soldering equipment to repair them. I have been repairing this type of equipment for 18 years and know a lot about them. The only thing any end useer can do is to clean them, that's it. If you have some knowledge of electronics and have the proper equipment I can guide you thru the troubleshooting process of figuring out what the exact problem is.
For starters, if the disc does not spin many will tell you it is the spindle motor. This is not true, if the laser can not get a reflection back from the disc, it will think there is no disc and not spin. If it does spin the disc but will not read it, it could still be the laser being to weak to read the data on the disc properly. If it spins the disc too slowly, it may be the motor, but could also be the servo driver IC that powers the motor, or a voltage regulator that is not putting out the proper voltage and causing the motor to spin too slow to get a focus lock. All of the above things can be working normal and still not be able to read a disc because of the DSP (digital signal processor) IC not being able to interpret the data correctly. There are also a number of other things that can cause a DVD or CD player to not read a disc. They are extremely complicated and technical equipment that can not be fixed without the proper tools and training unless it is just a matter of the lens of the laser being dirty or the disc's being dirty.
So, try cleaning the lens and the dsic's, if it doesn't work take it to a service center, but in most cases the repair will cost more than a new one.
If I can be of any further help let me know.
Posted on Aug 08, 2008
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