Help identifying a logic chip

Thread Starter

MrSoftware

Joined Oct 29, 2013
1,667
Does anyone recognize the IC below that I have identified some of the pins? It's on a model ZW20-J radio receiver. When you push a button on the remote control, the corresponding data pin on this chip goes high. Or at least it used to, until I accidentally shorted it with +12v using my fat multi meter probe (topic covered in another thread). ;) The PCB maker filed off the markings on the chips. I showed the other side of the PCB as well just in case it helps.



chip.jpg
zw20-j.jpg
 

dl324

Joined Mar 30, 2015
9,620
If you posted a complete connection diagram, someone might be inclined to try to reverse engineer it for you.
 
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