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Basic Troubleshooting Strategies

By on January 19, 2010

basic troubleshooting

Here is a good site that have some Basic troubleshooting strategies and this site was recommended by one of the ERG member Mr Arjunaidi. If you come across any good website please do let me know and i will post it to this blog. Please click on the photo for more information:



  1. soni

    January 19, 2010 at 11:38 pm

    Good Morning Mr Jestine
    I would like asking something about electronic. Yesterday I had problem with one control board of cutting machine.The problem is cutting motor directly rotate left to right when Main power switch ON. Normally the sequence is Main Power ON then Power button in front panel must be pressed then auto button pressed the motor run.
    I had checked that before Motor have TRIAC (BTA12-600B) and controlled by optocoupler MOC3041.

    My question
    1. Why motor direct rotate ( AC Motor)
    2. In this Case the problem TRIAC or Optocoupler

    thank for your help sharing your knowledge

  2. admin

    January 20, 2010 at 5:51 am

    HI Soni,

    Thanks for the posting. I wish to help but since i have no experience in repairing cutting machine thus i could not give any expertise advice on this matter-sorry.



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