Oct 31 2017
In this Teardown Tuesday, we are heading to consider a glance at the insides of an Amazon Fireplace Television.
Amazon is investing additional and more into components. The Amazon Hearth Television is another move in that path. The Fire TV’s functioning process, Hearth OS, is based mostly off of Android but does not consist of the usual Google integration. This teardown was fairly very simple, but there isn’t a whole lot a consumer could simply replace once inside the media participant.
The Hearth Television. Picture Courtesy of Amazon
Opening it up!
Opening up this Hearth Tv set was pretty painless! A small flathead screwdriver was applied to pry up the base panel. With the bottom panel taken off, the circuit board was exposed. The circuit board was held in spot with a handful of Phillips head screws. With the Phillips head screws taken off, the PCB simply just slid out. A large heatsink was attached to the plastic enclosure making use of an adhesive.
The top rated of the PCB
There is a one circuit board within of this media participant. This PCB is double-sided with blended building. There are a few unpopulated footprints and nominal reference designators on this board. This board has eco-friendly solder mask and white silkscreen on both sides.
The base facet of the PCB
The versatile EMI shielding on the bottom shell
This board has EMI shielding almost everywhere! Starting up at the bottom, the base plastic deal with has adhesive EMI shielding mounted to it. The through-hole pins of the HDMI connector are also covered by an EMI protect. The SoC, RAM, and radio are lined by EMI shielding cans.
A single of the several shielding cans
The 2.4GHz and 5.8GHz antennas
For the radios to transmit and obtain, this PCB has 3 antennas on it. There is one particular antenna for 5.8GHz Wi-Fi and two antennas for 2.4GHz shared involving bluetooth and Wi-Fi .
An fascinating notice with regards to the radio is that this unit went as a result of the FCC beneath the corporation “Quill Royal LLC” in an effort and hard work to prevent specifications about the machine leaking in advance of it was announced.
A RFID tag within of the Fireplace Television
In addition to the Wi-Fi and Bluetooth radio, there is also a very little RFID tag within of the product. This tag is most most likely used for stock and merchandise tracking at the Amazon warehouse.
The switching electricity source
This Hearth Tv is driven by a 21W AC-to-DC converter that requires mains voltage down to 15V with a max existing of 1.4A. A barrel jack is used to hook up the external electric power provide to the PCB. As soon as on the board, the voltage is even further controlled by an onboard switching DC-to-DC converter.
The Mediatek CPU
In this streaming media unit is a Mediateck SoC. This is their MT8173 processor that, in accordance to them, was supposed for higher-general performance tablets. This processor is a 64-little bit quad main processor with equally ARM-A72 and ARM-A53 clusters.
The SanDisk SSD
So that the person can retail outlet material on the unit, there is a 8GB Sandisk good point out generate. This is portion selection SDIN9DS2-8G. This travel communicates about a eMMC 5.1 interface that permits for data transfer speeds upto 400 MB/sec utilizing an 8-line serial interface.
This media participant is designed like a smartphone with a handful of interface choices. This appears to be the development with streaming media packing containers these as the NVIDIA shield and Apple Television. The overall performance of the flagship smartphone electronics is frequently additional than sufficient to electrical power these media containers.
Many thanks for taking a look at this Teardown Tuesday! Quit by following week for another teardown!
Next Teardown: Akai LPD8 Notebook Pad Controller