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Repair, anyone thinks this LG projector can be repaired?
- Thread starter danzr11
- Start date
Welcome to AAC!
Sure. Most things can be repaired, given the right amount of time, knowledge, expertise, finances and resources. For starters, tell us the make and model of the unit. Photos of the outside and overall view of the inside could help to make sure we are working to the correct unit. (The make and model will be added to the thread title.)
If a component fails, there is usually a reason for it to fail. Components don't normally fail on their own. If you replace a blown component, there is a good chance that it will fail again for existing faults that still remain.
There are different approaches to trouble shooting electronics.
The first and most useful step is to try and find the circuit schematics.
The next step is to get an idea of the layout of the circuit board, what area serves what purpose.
With this assessment, you can start probing the live circuit with a voltmeter to discover what voltages are present.
Experience suggests that capacitors are always at the top of failure rates. The power supply section is often a good place to start searching. In general, checking all power supply voltages is a good starting point, assuming that you know what voltages to expect. If you can find identifiable ICs, you can look up in datasheets the power supply pins and expected voltages. For example, op amps and logic ICs usually have standard supply voltages.
Modern electronics often use SMPS (switch mode power supply). This is likely a failure point.
Good luck!
Sure. Most things can be repaired, given the right amount of time, knowledge, expertise, finances and resources. For starters, tell us the make and model of the unit. Photos of the outside and overall view of the inside could help to make sure we are working to the correct unit. (The make and model will be added to the thread title.)
If a component fails, there is usually a reason for it to fail. Components don't normally fail on their own. If you replace a blown component, there is a good chance that it will fail again for existing faults that still remain.
There are different approaches to trouble shooting electronics.
The first and most useful step is to try and find the circuit schematics.
The next step is to get an idea of the layout of the circuit board, what area serves what purpose.
With this assessment, you can start probing the live circuit with a voltmeter to discover what voltages are present.
Experience suggests that capacitors are always at the top of failure rates. The power supply section is often a good place to start searching. In general, checking all power supply voltages is a good starting point, assuming that you know what voltages to expect. If you can find identifiable ICs, you can look up in datasheets the power supply pins and expected voltages. For example, op amps and logic ICs usually have standard supply voltages.
Modern electronics often use SMPS (switch mode power supply). This is likely a failure point.
Good luck!
