If the fuse is disconnected, it is recommended to go to a special repair shop for repair, which is not safe for personal operation.
How to repair the broken circuit board of electric fan?
Components in two locations need to be replaced:
1, the transistor marked "Fast" is broken. Refer to the transistor model marked "medium" or "slow" and replace the broken transistor.
The resistance of 2.560 ohms was broken down. Replace the 560 ohm four-ring resistance next to the breakdown transistor, that is, the resistance of green, blue, brown and gold rings. In addition, it is best to measure the resistance next to it to see if it is damaged.
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