Hi I put a clock in a vehicle and it keeps shutting down I believe she to ground loop so I ordered a isolated dc to dc power supply but not sure exactly how to hook it up I have positive wire from battery and chassis ground, and positive to clock and clock ground, the power supply has 6 pins labeled GND, Vin, Cnt, +Vout, OV, and CS can someone tell me how to hook this up what wire goes where to give me my clean 12v dc on the out side of supply here is a link to the actual supply, http://www.ebay.com/itm/230390461156 thanks for the help

 

You link shows the input and output connections about halfway down the page. It is in red and aboveit the specification in green.

Les.

 

You link shows the input and output connections about halfway down the page. It is in red and aboveit the specification in green.

Les.

Ha I looked all over for that and didn't see it thanks allot..... I feel like an idiot now

 

I put a clock in a vehicle and it keeps shutting down I believe she to ground loop

A ground loop can cause noise in a amplifier but is unlikely to shut down the clock.
Where are you getting the power for the clock?

 

A ground loop can cause noise in a amplifier but is unlikely to shut down the clock.
Where are you getting the power for the clock?

From a step down buck converter I believe the buck is what is actually shutting down

 

From a step down buck converter I believe the buck is what is actually shutting down

Okay.
So where is the buck converter getting its power?
Where is it connected to the 12V power?

 

Okay.
So where is the buck converter getting its power?
Where is it connected to the 12V power?

Has a direct line to battery plus actually 2 batteries 1 is reserve and grounded to chassis ground

 

From a step down buck converter I believe the buck is what is actually shutting down

It may be shutting down when the battery voltage drops during starter operation.
A large hold-up capacitor would eliminate that as a problem.

 

It may be shutting down when the battery voltage drops during starter operation.
A large hold-up capacitor would eliminate that as a problem.

I have already checked that as an issue and that it's not the problem there is a second battery that is reserve that clock gets its power from that does not start the car, actually the shut down occurs only when one specific device is activated it runs fine during start up thanks josh