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T O P I C    R E V I E W
HenryJP Posted - 04/10/2022 : 12:41:19
I accidently installed a fully charged battery in reverse. There was a smoke cloud in about 1 second. I disconnected the battery immediately, but the damage was done. It now doesn't see the battery, but works fine with the usb connector only. After a quick inspection ,I saw that a component on the board is fried. Its called "U7". A 5 PIn chip. I suspect its a chip regulator. Does anyone know what its value is, or if possible a work around, or know where I can get a schematic. (with values)
regards,
HenryJP
2   L A T E S T    R E P L I E S    (Newest First)
EmfDev Posted - 04/11/2022 : 10:06:15
Hi HenryJP, when did you buy this one and do you have an order number? Please send your order number and address to mark@gqelectronicsllc.com. We can send you one.
Damien68 Posted - 04/11/2022 : 06:08:43
you can read the marking on the chip and googling it
it look like LTC4054ES5-4.2

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