Comments on: Basic Troubleshooting Strategies https://jestineyong.com/basic-troubleshooting-strategies/ Semiconductors, Test Equipments, Circuit Board Troubleshooting, Electronic Repair Courses and Many More! Mon, 27 Jul 2015 09:55:14 +0000 hourly 1 https://wordpress.org/?v=5.4.24 By: admin https://jestineyong.com/basic-troubleshooting-strategies/comment-page-1/#comment-4421 Tue, 19 Jan 2010 21:51:30 +0000 https://www.jestineyong.com/?p=2586#comment-4421 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.

Jestine

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]]> By: soni https://jestineyong.com/basic-troubleshooting-strategies/comment-page-1/#comment-4416 Tue, 19 Jan 2010 15:38:37 +0000 https://www.jestineyong.com/?p=2586#comment-4416 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

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