Becareful Of Board That Has No Board Marking

Most of the circuit board in the market  has board marking but some do not have have. In this case you have to make your own marking so that you would not install the components the other way round. You can also take a digital camera to take some shots before removing the components. A wrongly installed components could cause the equipment to malfunction and some will explode especially the electrolytic capacitors. Just make sure the board has marking before you begin to work.

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1. 

   Waleed Rishmawi

   April 30, 2013 at 4:09 pm

   well, I read what your wrote and to my shock, on that day, I got a coustomer bringing a meter that tests the ground in buildings..when I opened the meter, there was no reading or signs on that board. the capactiors negative and postive makers were not there..so I had to take photos of the board before I start working on it..it was really shcoking to see an expensive meter when no markings on it....

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   • 

     Jestine Yong

     April 30, 2013 at 5:36 pm

     HI Waleed,

     Thanks for the comment. There are boards where components part number were removed too.

     Jestine

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