Since Google Announces the failure of their media player Logitech Revue, it is almost two years. After a day from the spotlight, Google TV re-picked up this plan. What is their flagship products? Of course it is Vizio Co-star. Let's take a look at this product with us.
first step:
Like Apple TV, the price of Vizio Co-Star is also $ 99, and the new product of Google TV has brought new vitality to the set top box market.
The main technical parameters:
Google TV platform
Support WiFi and Bluetooth
Hotkey for Amazon, Netflix and M-Go
Support MP3, ACC, and WMA audio playback
Universal QWERTY remote control with touch panels
Step 2:
The back of Co-Star contains rich interfaces:
Red: USB2.0 port
Orange: HDMI input port
Yellow: HDMI output port
Cyan: Internet Interface
Blue: DC power interface
At the bottom we can see the reset button and four plastic footpins.
Special note: These four footpins do not hide what.
third step:
With a plastic fraud, we can easily open its bottom, see it on the bottom plate.
Relatively speaking, Apple TV requires two metal mobile phones to open, not just a plastic rod here, in fact, we don't need to be more than a $ 20 above, both of which are actually easy to open.
the fourth step:
We dismantled this ground on which the EMI protective cover was found to find the heat conduction pad placed on a large number of small resistors.
The condition of this main board is not more common, but because Co-Star has no fan, Vizio has adopted additional protection.
the fifth step:
We need to remove the motherboard and need to remove some screws and two connectors.
For those who have disassembled at home, if they want to remove the motherboard from the device, there are a total of five screws and two cables must be unplugged. This has a lot of solidity than this set top box.
Step 6:
The following is a detailed understanding of the motherboard:
Red: MARVELL 1.2G dual-core processor ARMADA 1500
Orange: Marvell 88DE2755 Qdeo Video Processor
Yellow: 2GB DDR3 SD RAM NT5CB256M8GN-DI (2 GB X 4 for 1 GB Total RAM)
Glash: Samsung 32GB NAND FLASH K9GBG08U0A-Scbo
Step 7:
We are accustomed to controlling the device by a separate component, but these arches are usually a battery or power supply.
One-third of the Co-Star fundamental is aluminum radiator.
You or will ask why this set-top box uses so many radiators.
The reason is that the internal air flow problem is not a circulating air without a fan. There is no manual convection, then the Co-Star must rely on the transmission and natural pair of low temperatures to the processor.
Step 8:
Be
Remove another plate and find that there is no thing below it.
This board includes a USB port and does not have anything else.
Step Ninth:
We use the open mobile phone crushed from the wireless board to open the Bluetooth and WiFi antenna.
A Marvell Avastar 88W8787 WLAN / Bluetooth / FM Single-Card SOC solves this very complex solution.
Step 10:
Use a plastic trick tool with a hand that does not tremble to separate Co-Star Bluetooth and WiFi antenna.
Step 11:
This is enough for Co-Star, but we know this set-top box, so I am a glimpse of this silver board, unfortunately, except it, no other things.
Step 12:
It seems like Boxee Box, Co-Star has a delicate two-sided remote control.
But not even as much as Boxee Box, Vizio's controller is universal, and there is a touch point that is full of devil.
As a pen, the Co-Star remote control is an ABXY button and a steering board for online game service. This is not only an incredible function, but it can also make us miss the past.
Step 13:
The battery seat is leaked, but this is not surprising, because how long will you change your TV remote control?
The remote control itself has a pair of batteries, which is also a selling point.
Step 14:
The following is also a chance for some people, because there is a keyboard with a lemon green border to match your Co-star is a cool thing.
Whether it is painted, it is very simple to remove this border from the keyboard.
Next, the removal of the rubber button is also a thing that is easy.
Since the buttons and borders are the easiest to get dirty parts, it is very easy to remove.
Step 15:
The buttons on both sides do this have a lot of data transfer. Fortunately, these data lines pass through the connection devices of the two PCB boards.
The Co-Star remote control seems to be as easy to open as its own media player.
Again, there is no need to surprise, the remote control is not as strict spatial restrictions like smart machines or notebooks.
Step 16:
Keyboard IC:
Maximum 16-bit microcontroller MAXQ610 with infrared module
Bo Tong's Bluetooth 3.0 single chip man machine interface equipment BCM20733
Seventeenth step:
Open some Phillips # 0 screws and some card, the bottom of the remote control is removed.
After the cover is removed, we learned that these screws are double-installed to protect the motherboard.
Eighteenth step:
Before removing other panels, we gently pulled out the data line of the touchpad with a tweezers.
This motherboard is supported by the Lisa 16-bit microcontroller R5F2133.
Please do not use a flash, but this PCB has two infrared booster. There is a QWERTY keyboard to provide services.
Chapter 19:
The keypad that pulls out the remote control is like peeling with bananas. It is below the capacitive touchpad.
Many strong glues are used to secure this board.
If this is loose, your movie will pass away from the wind, so it uses a lot of glue.
Excess binders are usually not made in a manner we are familiar. This requires less tolerance, using guitar pieces, mobile phone crops, we get rid of the touchpad from the frame.
20 steps:
The touchpad is controlled by the popular touch controller Synaptics T1021A, which is also used in the Logitech Revue.
Chapter 21:
Its repair is 8 points (full range of 10 points)
The external box can only be removed by a plastic fraud.
It uses the screws of Phillips # 0.
Most of the components are easy to remove, and it is easy to replace.
The QWERTY touchpad that removes the remote control is not difficult, which makes daily cleaning very simple.
A large number of protection of the touchpad in front of the remote control, which makes it quite difficult to remove it.
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