i) Reduce the current.
ii) Use proper polarity
(Interchange the polarity and
check).
iii) Replace the diode OR
Diodes.
I) Increase the current.
ii) Make firm connection.
iii) Check the input
supply.
and use proper tapping
(380/415/440) by changing the
jumper on the main
transformer
I)
Replace.
ii) Replace.
III) Replace.
iv) Replace.
Mains fuse blows
i) Short circuit in the
primary of the main
transformer.
ii) Short circuit in main
diodes
i) Remove the short circuit.
ii) Replace the diodes.
