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retro:doa-board [2021/10/19 01:13]
Ilias Iliopoulos
retro:doa-board [2021/10/19 01:20]
Ilias Iliopoulos
Line 15: Line 15:
 > //**Board Dead-on-Arrival. Repair immediately.**//​ > //**Board Dead-on-Arrival. Repair immediately.**//​
  
-Just have a look on the board, ​as received from the customer, after we made some emergency repairs to re-route the burnt copper trails. ​+Just have a look on the board, ​with this massive hole and the burn marks! ​
  
 {{ :​retro:​doa-1.jpg?​800 | PCB top view }}  {{ :​retro:​doa-1.jpg?​800 | PCB top view }} 
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 {{ :​retro:​doa-2.jpg?​800 | PCB bottom view }}  {{ :​retro:​doa-2.jpg?​800 | PCB bottom view }} 
  
-Definitely it was not DoA :-) Nobody has ever found out what really caused this hole. Well, although it was easy to repair the board because ​no chips were affected, I could not send it back to the customer at such a condition. Luckily, there was sufficient profit margin for the entire project, so I shipped a new one and kept this one in my "​Archive of Terror"​. ​  +Definitely it was not DoA :-) Nobody has ever found out what really caused this hole. All ICs were working perfectly. Well, although it was easy to repair the board because ​the density of the PCB trails at those times was really small, I could not send it back to the customer at such a condition. Luckily, there was sufficient profit margin for the entire project, so I shipped a new one and kept this one in my "​Archive of Terror"​. ​  
  
            
  
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retro/doa-board.txt ยท Last modified: 2024/02/02 21:50 by Ilias Iliopoulos