JBL SoundBoost Speaker Teardown

ID: 130252

Description:

Steps:

  1. Peel the sticker from the back
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  2. Unscrew the 8 screws from the back
    3. Step image
  3. Extract the PCB from case
    4. Step image
  4. BQ24196 - battery charger
  5. TFA9890A - speaker driver
  6. STM32L431xx - ARM Cortex M4 (L431CCY mark on chip)
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  7. 3.7V 1000mAh battery
    8. Step image Step image
  8. The PCB has exposed test pads for: I2S, JTAG, UART, Amp output, Power button and some pads named TM#
    9. Step image
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