Charging Problem in Electronic Scale (500kg)

this is a scale having charging problem

Teacher Notes

Teachers! Did you use this instructable in your classroom?
Add a Teacher Note to share how you incorporated it into your lesson.

Step 1:

First Open the box

disconnect the all jacks

Step 2: Checking the Circuit

check the secondary winding of transformer

there is no reading against secondary winding of transformer
but It have reading of primary winding

and in circuit have a bad capacitor (1000uf/25v)

Step 3: Changing the Capacitor

Step 4: Replacing the Transformer

it have 10v transformer

I replaced with 9v transformer

after this I connect the circuit

Step 5: Finished

after connecting the circuit

I connect it to the AC

now it show 7.66 volts on battery terminal

after connecting the battery is now on and charging the battery

Be the First to Share

    Recommendations

    • CNC Contest

      CNC Contest
    • Make it Move

      Make it Move
    • Teacher Contest

      Teacher Contest

    Discussions

    0
    None
    tomatoskins

    4 years ago on Introduction

    Nothing better than being able to fix your own stuff. Thanks for sharing!