Kindly help me fix this pcb 800067

[jamesrajesh007]

Hi every one and hello fzabkar sir kindly help me fix the pcb its 800067 2TB WD Charger problem is no power at all i have posted the pcb pic pls help

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[pepe]

check the component marked with 'S', it should be shorted (fuse) and the diodes near it, they should not be shorted.

[jamesrajesh007]

Component marked with S is short and near diodes are not

[pepe]

as a next step, measure voltages on 'S' and the inductors near the motor controller while supplying power through the usb connector and post results

[pepe]

this topic might help you sooner or later:
https://forum.hddguru.com/viewtopic.php?f=1&t=45180

[beefstrudel]

I assume you've checked TVS diode and the fuse?
Looks like the power trace is cracked. Circled on the top down view.
Try to solder power to the point I circled in red on the back side view, ground to the black circled spot.
If the board is not cracked, the fuse marked S I've highlighted, sometimes those have cold solder joints, I've managed to fix a few of these boards by just putting some flux and hitting that fuse with hot air to reflow it.

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