Trying to resolve issue with electronic gadget

rnbguy

Jun 6, 2011
5
Joined
Jun 6, 2011
Messages
5
Hi Guys,

I've got this circuit I'm trying to test U1 which is an IC driver. I'm trying to identify if the driver is dead by measuring the voltage on pin 1OUT, I'm getting no voltage and no amps from that pin. Every other pin both in and out are reading ~11.5volts. Can someone point me in the right direction of how this works.

Please know I'm new to this
circuit.png
 

poor mystic

Apr 8, 2011
1,106
Joined
Apr 8, 2011
Messages
1,106
Hi rnbguy
would you please post more information, such as where the board comes from? This might help or it might not...
 

shrtrnd

Jan 15, 2010
3,901
Joined
Jan 15, 2010
Messages
3,901
U1 may be bad, but with 11.5V on every other pin, you've got other problems.
Start with your power supply and work your way to this circuit. I'd pay particular attention
to C5 & C6.
 
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