Output board problem

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Output board problem

Postby jemzik » 23 Mar 2017, 07:26

Hi there
I have a problem with one of inputs of output board .
Looks like one of the inputs of first buffer/optoisolator chip is not functioning but rest 3 are okay.
I'd like to replace it but can not figure out what type of chip is this. It says on package a247 and 1413. I can not find any part that fits pinout and this numbers. Can some one can help with this issue
Thank you
jemzik
 
Posts: 9
Joined: 25 Mar 2013, 08:23
Controller: Mk2

Re: Output board problem

Postby Support » 23 Mar 2017, 14:49

Which input does not work? Just so that we are sure which IC is damaged.
Support
 
Posts: 2631
Joined: 07 Apr 2014, 17:39
Controller: Many controllers

Re: Output board problem

Postby jemzik » 23 Mar 2017, 18:09

Input 3 is not responding but changing it to any other works fine.
2003 darlington works fine on all 3 i/o so it definitely problem with mysterious chip that looks like optoisolator
Just need to know its part number to order it as soon as possible .
Thank you
jemzik
 
Posts: 9
Joined: 25 Mar 2013, 08:23
Controller: Mk2


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