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Cosworth Rev counter

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Old Jul 28, 2018 | 09:42 PM
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Default Cosworth Rev counter

Trying to repair a 3DR rev counter.

It started out as not working at all, and it now moves when power is applied it to, the reason being is the voltage is now lower on the output pin of the IC than the other side of the motor.

All resistors are ok and capacitors appear ok.

Looking at the PCB, it looks as if a component has broken off, as there is solder on the pads, although the holes look to close though for it to be either of these.

Ideally I am looking for a component side picture of the PCB to confirm my suspicion.

On the bottom right I have two resistors (six in total) and it is to the left of these where I think a component should be.

Any help would be appreciated.

Martin
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Old Jul 29, 2018 | 06:55 PM
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Default

Anyone??

BTTT, I appreciate few would do this sort of thing, so hoping MSD can advise here.

Martin
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