Using dc power supply to source shorts
Managed to get all functions going after water damage using the usual treatment. All fine with the exception of a quick battery drain. Even with just battery attached to logic board a known good battery was dying.
I assumed there was a short on the board somewhere so tried finding it with freeze spray. Nothing showed up with battery so used a dc power supply as Jessa from ipad rehab demonstrated in one of her brilliant videos. Eventually I discovered a component that was warming up first. It was the charge control IC "Q1403"
I have not removed it yet as I am still quite new to this type of work and not sure if this ic normally warms up first when dc power is applied to the battery connector.
Should I be trying to put current through charging port instead?
Absolutely any advice would be hugely interested
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