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这个步骤还没有翻译 帮忙翻译一下
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We like to start with some specs, and in this case a lot of the good stuff is packed into the fancypants new remote. The box itself contains:
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Dual-core, 64-bit Apple A8 chip
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Ethernet, 802.11a/b/g/n/ac Wi-Fi, IR receiver, and HDMI 1.4 connectivity
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...whilst the remote is packing:
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Glass Touch surface
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Dual microphones
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Accelerometer and gyroscope
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Bluetooth 4.0, IR transmitter, Lightning connector
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这个步骤还没有翻译 帮忙翻译一下
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The Apple TV has really packed on some pounds since its last iteration.
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It seems to have lost a port in the process—the optical audio out has gone MIA.
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Our teardown engineers go to work on the Apple TV and quickly find access through the bottom of the device—similar to the 3rd generation Apple TV.
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Only a few plastic clips stand in the way here, with no adhesive or screws in sight.
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这个步骤还没有翻译 帮忙翻译一下
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Under the hood, we spy a few Torx screws.
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We take our Pro Tech Screwdriver Set out for a quick spin to release the combo heat sink/EMI shield.
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By the looks of it, this plate also serves as a bracket, giving the clips on the lower case something to latch onto. That's three functions in one component, folks.
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这个步骤还没有翻译 帮忙翻译一下
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Here are some chips to go with your TV:
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Apple A8 APL1011 SoC, with SK Hynix H9CKNNNBKTBRWR-NTH 2 GB LPDDR3 SDRAM
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Universal Scientific Industrial 339S00045 Wi-Fi module
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SMSC LAN9730 USB 2.0 to 10/100 Ethernet controller
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Apple 338S00057 (similar part number to the 338S00055 custom memory controller found in the Retina MacBook 2015) (power management IC)
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Kinetic Technologies (formerly MegaChips) MCDP2700A1 DisplayPort-to-HDMI converter
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Texas Instruments TPS62130A 3 A step-down converter
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Fairchild Semiconductor DF25AU 010D 030D MOSFET
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这个步骤还没有翻译 帮忙翻译一下
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More chips on the bottom of the logic board:
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SK Hynix H2JTEG8VD1BMR 32 GB NAND flash memory
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NXP Semiconductor CBTL01112 multiplexer/demultiplexer switch (likely)
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Texas Instruments MSP430V301 16-bit microcontroller
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Texas Instruments INA213 current sense amplifier
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ON Semiconductor LMV331SQ3T2G single comparator
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Texas Instruments CD3255 power monitor (likely)
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Nexperia (formerly NXP Semiconductor) 74LVC1G157GV single 2-input multiplexer
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这个步骤还没有翻译 帮忙翻译一下
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IC Identification, continued:
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Renesas (formerly Intersil) ISL95870AHRUZ-T PWM DC-DC controller
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Texas Instruments TPS715A01 80 mA / adj. LDO regulator
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Diodes Incorporated 74LVC1G125FW5-7 non-inverting buffer/bus driver
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Diodes Incorporated 74LVC2G07FW4-7 dual buffer gate
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这个步骤还没有翻译 帮忙翻译一下
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Last to come out of the box: a great big chunky heat sink with a cute little power supply board tucked away inside.
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The redesigned power supply is rated at 12 V at 0.917 A. Compare that to the 3rd-gen Apple TV's main reactor, which pumped out 3.4 V at 1.75 A.
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We noticed a distinct lack of cables connecting the power supply to the logic board. We're theorizing the power is either transmitted by magic, or through the heat sink screw posts.
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And as a fun bonus, some chips:
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NXP Semiconductor TEA1738LT switch mode power supply controller
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Toshiba TLP291 photocoupler
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STMicroelectronics STF6N65M2 650 V N-channel MOSFET
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这个步骤还没有翻译 帮忙翻译一下
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Behold, the new Siri Remote! Featuring dual microphones, a Glass Touch surface, and a Lightning connector, this remote is definitely a bit more complex than the Apple Remote of yesteryear.
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Apple also packed in an accelerometer and gyroscope, which they hope you'll use to play games—and browse Airbnb.
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With Bluetooth 4.0, the new Remote doesn't need direct line-of-sight with your TV.
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That is, unless you want to control your actual TV. Apple points out that the remote for their new TV can also control a television or A/V receiver.
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这个步骤还没有翻译 帮忙翻译一下
在这个步骤中使用的工具:iOpener$19.99-
We found where Apple was hiding all the adhesive! Looks like our iOpener and pick don't get the day off after all.
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The entire top end of the remote is a giant button. Beneath it lies a gap that gives us a nice, consistent groove to pick apart.
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"Hey, Siri—say Ahhhh."
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If only it was that easy... Actually, it was pretty easy. It seems there's a first for everything!
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这个步骤还没有翻译 帮忙翻译一下
在这个步骤中使用的工具:Spudger$2.99-
We're suddenly having flashbacks to the iPhone 5s. The top half is connected by a ribbon cable, hidden in the center of the device.
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Our in-house EOD expert gets to work with a spudger and carefully disarms the trap.
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With the top and bottom separated we notice a hidden yin yang motif. That's so zen of you, Apple.
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这个步骤还没有翻译 帮忙翻译一下
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OICURAQT—That's what we say whenever we identify an IC, like the ones on this logic board:
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ST Microelectronics STM32L 151QD ultra-low-power ARM Cortex-M3 MCU
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Broadcom BCM5976C1KUB6G touch screen controller (as seen in the iPhone 5s/5c and iPad Air)
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CSR (Qualcomm) CSR1010 Bluetooth radio
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Texas Instruments TMS320C5545 ultra-low-power digital signal processor
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STMicroelectronics STMLS05 5-channel PMOS load switches
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InvenSense ITG-3600 3-axis gyroscope
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Texas Instruments BQ24250C battery charger and TI 49C37GI
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这个步骤还没有翻译 帮忙翻译一下
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Chip identification, continued:
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Analog Devices ADAU7002 audio converter
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AKM Semiconductor AK8963 3-axis electronic compass
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Bosch Sensortec BMA282 accelerometer
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ON Semiconductor memory (likely)
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Texas Instruments TPS61220 boost converter
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ON Semiconductor NCP335FCT2G 2 A load switch
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Diodes Incorporated 74LVC1G58FW4 Configurable Multi-function Gate
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这个步骤还没有翻译 帮忙翻译一下
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Look at that! A ZIF connected Lightning port cable.
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If Apple can pack a ZIF connector into a tiny remote like this then why is the iPad Lightning port soldered to the logic board?
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Answer: Apple proprietary secret.
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With just a bit of glue to pick apart, the Lightning cable/battery is out in a flash.
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这个步骤还没有翻译 帮忙翻译一下
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With the Lightning port/battery assembly free of the remote, we see that the battery is soldered to the Lightning port.
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While we've never been a fan of soldered-on batteries, at least the Lightning port isn't soldered to the logic board!
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Because this 410 mAh battery is rechargeable, you'll never scramble to find batteries for your TV remote again. Thanks, Apple!
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At least not until it dies and you need to replace it.
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And hiding out at the base of the flex cable are two ABLIC, Inc battery protection chips.
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这个步骤还没有翻译 帮忙翻译一下
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Apple TV (4th Generation) Repairability: 8 out of 10 (10 is easiest to repair).
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Modular construction and only a few major components simplifies repair.
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The power supply is a separate, replaceable component, and even its AC-in jack is modular.
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Standard Torx screws used throughout, nothing proprietary.
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The remote is held together with adhesive, but a wide gap makes it easy to pry apart.
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The remote's battery and Lightning cable are soldered together—but not to anything else, so they should be an inexpensive component to replace.
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Everything important is soldered to the logic board, meaning replacement or board-level soldering is required to solve port problems.
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And that's a wrap. See you for an iPhone teardown down under! G'day, mate!
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31条评论
Geekbench shows all the Apple TV's at 1GHz apart from an outlier at 1.5GHz
http://browser.primatelabs.com/geekbench...
That suggests it's running at 1.5GHz...
name99 -
The 1.5 GHz one was recorded in 09. The heatsink is probably only there because there's a big AC-DC transformer on top of the apple tv. Odds are it's clocked in a similar fashion to the A8 in the iPad Mini 4
Looks like a different design group worked on this. If it were Jonathan Ive's work it would have that iMac method of carving the case out of a chunk of aluminum and welding it shut with adhesive throughout.
Funny though - here's a device that is easy to get into, but one really doesn't need to whereas the iMac is something one might want to upgrade, but can't get into easily.
@name99 The 1.5 gHz geekbench benchmark is actually on an overclocked first generation Apple TV, back in 2009.