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1. Judge the safety of repairing the object
- Are you able to judge the safety of the repair? If not, contact someone who does or read up on the subject.
- Some quick tips regarding safety:
the device has an external power supply, and the voltage is less than
60 VDC or 25 VAC (can be found on supply), it is safe to touch with your
- For lower voltages, shorts can cause high currents which might still be dangerous.
- Avoid metal jewelery since they can become dangerously hot if shorted.
2. Reproduce the problem before repairing
- Sometimes the device is used the wrong way and not actually broken. Sometimes the issue even disappears during transport.
- I which situations the problem occurs can say a lot. Note when the problem occurs, and when it doesn’t.
- Consider when the problem started to further narrow down the search (e.g. use system indicators, such as LEDs or displays)
3. Search for repair solutions on the Internet
- Check google for the specific problem. Keywords could include:
- Model type
- Model name
- Model’s product number
- The issue you have
- A diagnostic/error code, if there is one (LED blinking or an error code on a display)
- If google didn’t bring it up already, check youtube. A lot of solutions get taped and land on youtube.
- ifixit.com is a known homepage for repair guides, there is also a forum with an engaged community.
- See on the manufacturers homepage if they offer service manuals or other guidance in case of a broken device.
4. Try the easy fixes first
- Clean your device. Always a good opportunity. That applies both to hardware and software.
all controls at the right settings? If you’re not sure, a lot of
devices offer a factory reset. This often removes personal settings or
even data, so consider backing up you device if that is possible.
- Are there blown fuses?
- Are all cables and connectors firmly seated?
- Are there interlocked lids, and are they firmly closed?
- Is power at all available to the device, either from cable or battery?
5. Check the power supply
- Is often the source of failure
- Look for bulging capacitors
- Measure output voltages (requires multimeter)
6. Substitute parts
- Any part that is visibly damaged
7. Digging deeper
- Need at least a multimeter
- Understanding the system – ideally using a schematic or service manual
- Make a circuit diagram