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Microcontroll ic not working

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Posted on Feb 19, 2015


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After a short power outage, I have clock issues.

this a problem with the clock , but the microcontroller can be defective by the power outage, see the diagram . how the microncontroller has the control for any equipment.
IN SHTE M.CONTROL BOARD CAN BE DEFECTIVE. go to the repair shop Tv FOR FIX IT. God bless you

I already replaced the power supply now the green light comes on but there is no picture or sound and it dont responed to the remote

You must go on fromthe point you left off, trace the +B to the circuits, check the microcontroller, the sub processors, confg of the ic's can be got from manufacturer's site. Probe only if your are familiar with these sensitive circuit, have a rough idea of the LCD TV circuit. Look out for any fusible resistors to the main board replace or ceck PD across, if showing low ther could be failure of PCB may be infor an expensive work... Hope this helps

Why OSD come time to time

disolder the microcontroller IC inside the monitor. then power on the monitor without IC . short all the terminals of the IC and remove then solder the IC and power on the monitor . your problem will be absolutely solved.

Tv shuts off after 10-20 minutes

its not the problem with ur electron gun tube or with any picture ic or sound ic. Every t.v. is microcontoller switched machine.
any damage to microcontroller ic that controls the switching will lead to this kind of problem.
0.01% chance of residue EHT voltage would have affected the microcontroller.

Microcontrollers schematic diagram is being needed for my project.

What is the project? Please specify to get help. I have plenty of circuits.
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