Re: Harman/Kardon Onyx Bluetooth Speaker - No Power
Go look at the file SPEC-BM153-V4.3_03122009.pdf I linked\uploaded. On page 3\4 it tells you which pins do what.
Pin 1 on the module is marked with a 1. In your photo, it's the bottom-right corner. From pin 1, the rest are numbered in an anti-clockwise fashion around the edge.
Pin 3 thus, seems to connect to R306 on the main board. According to the datasheet:
"Reset if low. Input debounced so must be low for >5ms to cause a reset"
So you want to check that Pin 3 is not staying low, as that would hold the module in a reset state and nothing would happen.
You should probably also check power pins, Pin 12, 13, etc to make sure power is actually getting to the module.
Go look at the file SPEC-BM153-V4.3_03122009.pdf I linked\uploaded. On page 3\4 it tells you which pins do what.
Pin 1 on the module is marked with a 1. In your photo, it's the bottom-right corner. From pin 1, the rest are numbered in an anti-clockwise fashion around the edge.
Pin 3 thus, seems to connect to R306 on the main board. According to the datasheet:
"Reset if low. Input debounced so must be low for >5ms to cause a reset"
So you want to check that Pin 3 is not staying low, as that would hold the module in a reset state and nothing would happen.
You should probably also check power pins, Pin 12, 13, etc to make sure power is actually getting to the module.
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