HOW IT WORKS:
It uses a simple EMI filter followed by a 'bridge and a filter' which supplies
dc current to a series of LEDs.
TROUBLESHOOTING TIPS:
1) After you open the casing, see for any burnt component. If you find any, replace them.
2) Check for any faulty LED using a multimeter.
3) Check the copper track.
CASE STUDY:
- Here I found one, which had a faulty LED. There were traces of liquid flow around the same which must have been responsible for the dead set. (A OPEN CIRCUIT!)
- Now due to unavailability of any spare LED, bypassed the same using a 1N4001 diode.
And, bingo!!
It uses a simple EMI filter followed by a 'bridge and a filter' which supplies
dc current to a series of LEDs.
TROUBLESHOOTING TIPS:
1) After you open the casing, see for any burnt component. If you find any, replace them.
2) Check for any faulty LED using a multimeter.
3) Check the copper track.
CASE STUDY:
- Here I found one, which had a faulty LED. There were traces of liquid flow around the same which must have been responsible for the dead set. (A OPEN CIRCUIT!)
- Now due to unavailability of any spare LED, bypassed the same using a 1N4001 diode.
And, bingo!!
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