Electronics > Repair
Rockbox Chunk not charging - simple repair?
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armandine2:
I re-acquainted myself with my faulty Rockbox Chunk charging fault, over the weekend.

..the battery cells will charge directly from an external supply and the blue-tooth speaker does play ok.

...the battery does not charge from its own usb port - although a status LED will flash to show "willing".

Off the charger the status LED(s) don't go out - I suspect a short.

armandine2:
No progress on the fault, as yet.

I did though google some of the components:

TP A3118 - D class amp
4409 - P channel mosfet
SS34 - Schottky diode
25L 1606E - flash memory


The last item I have, a little rashly  :palm:, just saved with my unmodded CH341A usb to serial interface.
armandine2:
... the mosfet should be fairly easy to remove, test and replace if necessary.

perieanuo:
hi, omho you're not looking to charging circuitry, but to battery load.
maybe the charger IC is the squared one on the left side in the photo?
armandine2:
Yes, I don't think the mosfet will be at fault - as you say it appears as a charging fault.

I see connected to the 5VDC input an IC labelled (U10):

ACTIVE
2803QJ
JF511
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