- Mosaic Spatula
- Mosaic Double Ended Hook
- Precision Screw Driver
- Use the Mosaic spatula and double ended hook tool to poke at the slight gap between the casing.
- Separate the top casing from the motherboard and HDMI cable. The casing will have a heat sink pad with some thermal paste residue. Use the Double ended hook to help in taking it apart from the EMI (Electromagnetic Interference) Shield.
- The EMI Shield is not soldered shut so we can use the Mosaic spatula to remove it from the circuit board.
- Using the precision screw driver unscrew the two T-5 screws holding down the connector bracket which is connecting the HDMI Cable to the the motherboard. This will also separate the motherboard from the bottom casing as well.
- Using the Mosaic spatula remove the EMI Shield on the other side of the motherboard as well, to reveal the motherboard by itself. The motherboard has 5 chips:
- Marvell Avastar VHT WLAN, Bluetooth, NFC, and FM Receiver
- Samsung 4 GB DDR3L SDRAM — Memory, need constant power to hold memory
- Marvell Armada 1500 Mini Plus dual core ARM cortex-A7 Media Processor — Digital streaming in real time
- Toshiba 2 GB NAND Flash memory– Memory that can be rewritten, doesn’t need constant power
- MRVL Semiconductor DC-DC Regulator- Converts voltages for two connections working at different voltage levels
- The motherboard is the heart of the device, and would be more interested in understanding the connections between the different chips. Through some research I was able to understand most of the differences between the chips, but I am still pretty amazed by the speed of these things and how fast they communicate to each other.
- Thermal paste can get messy, and seemingly anywhere? Even with the casing, it seems like the paste was a little over the motherboard, I was able to clean up using my tools. I wonder if this could be causing overheating within a device and have led it to not working ? Although I didn’t have a TV to try and see if it would work initially but just a thought.