My mk174 kit got a voltage of 12v dc instead of 4,5v dc (turning switch on adapter
)
Now the LED is continuously on and the kit is not working anymore.
Could anyone please tell me if the ISD1600 chip has to be replaced ?
Or only one of the other components?
VEL417
2
Most likely, only IC needs to be changed.
Thank you so much for your fast reply ! I was afraid for this answer 
Is it possible to purchase this chip through you? Because I canβt find it at local vendors.
Thanks again.
VEL417
4
Only if you return the defective item to:
Velleman Projects Tech. Dept.
Legen Heirweg 33
9890 Gavere
Belgium
Last question, what would be the cost involved?
Thank you !
VEL417
6
Difficult to say, but less than the price of a new kit.