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Este teardown (desmontagem analítica) não é um guia de reparo. Para reparar seu/sua Apple TV 4K 2021, use o nosso manual de serviço.

  1. Apple TV 4K 2021 Teardown, Apple TV 4K 2021 Teardown: passo 1, imagem 1 %32 Apple TV 4K 2021 Teardown, Apple TV 4K 2021 Teardown: passo 1, imagem 2 %32
    • We'll skip the unboxing and get straight to our first dilemma: Which to crack open first? The black box …

    • Apple A12 Bionic chip for that high-framerate 4K HDR viewing pleasure

    • Color balance and Thread support

    • HDMI 2.1, Ethernet, 802.11ax WiFi 6, and Bluetooth 5.0

    • … or the silver stick (a.k.a. next-generation Siri Remote):

    • Touch-enabled clickpad, Siri button on the side please

    • All-new power and mute buttons to better control your TV

    • Bluetooth 5.0, IR transmitter, and Lightning connector for charging.

    I noticed the Remote Control power button removal wasn't shown in the teardown but it was out in the picture of the separating from its' innards. Why do I mention this? Because mine also came out and now I can't get it to stay in. What happened to it? Idk.

    steve brown - Responder

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    • Let's see if a quick exterior inspection helps decide.

    • The box may look familiar, but the new remote looks ... also pretty familiar, actually. It recalls the remote design from the 3rd-gen Apple TV, way back in 2012.

    • That's not a bad thing. New Apple products often set trends, but one thing that nobody hurried to copy was the frustrating Siri Remote design that shipped with Apple TVs starting in 2015.

    • That's okay, Apple—be a goldfish.

    • Both gizmos have their own Apple model number, namely: A2169 for the black box, and A2540 for the silver stick.

    • If you were wondering about a hidden service port inside the Ethernet jack, we have to disappoint you. The Apple TV 4K only carries power, HDMI, and Ethernet ports. (The front also sports an infrared sensor peeking through the plastic, which we’ll find later).

  3. Apple TV 4K 2021 Teardown: passo 3, imagem 1 %32 Apple TV 4K 2021 Teardown: passo 3, imagem 2 %32
    • Before we can decide which one to open first, the X-ray masters at Creative Electron send over a teardown of their own.

    • X-rays have no problem penetrating the remote's aluminum shell (although usually neither do our tools, once we know where to poke).

    • Are those screws at the bottom corners?

  4. Apple TV 4K 2021 Teardown: passo 4, imagem 1 %32 Apple TV 4K 2021 Teardown: passo 4, imagem 2 %32
    • With the black box, we know exactly where to prod and pry. Our tried-and-tested methods still work fine on this updated hardware, so we go right ahead and remove the bottom cover.

    • Underneath we are greeted by the full metal fan unit seen in the Apple TV 4K, not the heatsinks of previous generations.

    Is this the same bottom cover as the AirPort 802.11ac?

    Tom Chai - Responder

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    • Disassembling the cooling unit is a breeze, and unsurprisingly no different from the previous 4K model.

    • So far things are looking pretty familiar, so we'll fast forward a bit. Suffice to say, with a good set of tools (not pictured), the blower comes out like magic.

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    • A few Torx screws later, the logic board is free and exposes these chips on the top:

    • Apple A12 Bionic SoC—yep, the same chip from the 2018-era iPhones—paired with Micron MT53D384M64D4SB-046 XT:E 3 GB mobile LPDDR4 SDRAM memory

    • Apple APL1091 338S00673 power management IC

    • Broadcom BCM57762A0KMLG Gigabit Ethernet controller

    • Alpha & Omega Semiconductor AONE36196 MOSFET

    • T245 MrHP crystal oscillator

    • Lattice Semiconductor iCE5LP4K iCE field programmable gate array (FPGA)

    • Macronix MX25U8035F 8 Mb serial NOR flash memory

    So are we assuming it has 4GB RAM like the 2018 XS/XS Max devices, or will you guys dig into it? You guys are usually are more detailed than this, come on!

    Nicholas Ouimet - Responder

    Mémoire flash NOR série MX25U8035F is 8Mb not 8MB(8Mo)

    smart gus - Responder

    @smartgus Merci du commentaire ! Vous avez des yeux d'aigle ! J'ai corrigé la faute. iFixit étant un wiki modifiable par tout le monde, n'hésitez pas á modifier vous-même la prochaine fois que vous remarquez quelque chose :) Merci encore et excellente journée à vous !

    Claire Miesch -

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    • … and these underneath:

    • Kinetic Technologies (formerly Megachips) MCDP2920A4 DisplayPort 1.4 to HDMI 2.0 converter

    • SK Hynix H230EG8126AD0-BC 32 GB NAND flash memory

    • Murata 339S00763 Wi-Fi/Bluetooth module

    • Lattice Semiconductor SiL9437CNUC audio return channel receiver/transmitter

    • ON Semiconductor LC89091JA digital audio interface receiver

    • Infrared receiver

    • Nordic Semiconductor nRF52833 Bluetooth 5.2 SoC w/ NFC and Zigbee

    The new Apple TV sports HDMI 2.1 and HDCP 2.3, but the Megachips part only converts to HDMI 2.0/HDCP 2.2. Do you have any clue as to what is used for the HDMI transmitter function, or is that coming from the A12 or the Lattice FPGA? None the listed parts seem to line up with that functional block. THANKS

    Michael Heiss - Responder

    Version 2.1 of the HDMI specification supersedes and replaces version 2.0b. All of the new features in the 2.1 release are optional. This is the same scenario as USB 3.0 > 3.1 > 3.2. To quote the HDMI Licensing Administrator:

    “Since each version of the HDMI specification provides a set of potential capabilities and not a set of required functionality… [y]ou shall reference HDMI Specification version numbers only when clearly associating the version number with a feature or function as defined in that version of the HDMI Specification. You shall not use version numbers by themselves to define your product or component capabilities or the functionality of the HDMI interface… If you use an HDMI Specification version number to describe your HDMI implementation, you shall clearly and explicitly identify some or all features or functions of that version of the HDMI Specification that are supported by your implementation.”

    repoman27 -

    Apple says this about the HDMI capabilities of the new Apple TV 4K:

    “HDMI 2.1*

    *Support for up to 4K 60-fps HDR video output and Audio Return Channel (ARC or eARC) only. Requires HDCP when playing protected content and compatible TV or Receiver”

    So in this case, the SiI9437 eARC receiver is providing the sole HDMI 2.1 feature supported by this device. HDCP is an entirely separate specification, and AFAIK, Apple has never said that the new Apple TV 4K supports anything beyond HDCP 2.2.

    Incidentally, this device and the previous Apple TV 4K both use the Megachips MCDP2920 (not the MCDP2900). I’m not aware of any publicly available datasheets for the MCDP2920, but it is almost certainly a similar DisplayPort 1.4 to HDMI 2.0b protocol converter with HDCP 2.2 repeater. The DisplayPort output of the A12 is routed to the MCDP2920 and the Sil9437 sits on HDMI pins 14 and 19 to perform ARC/eARC duties.

    repoman27 -

    The LC89091JA digital audio interface receiver is almost certainly part of the ARC/eARC chain as well. And if I had to guess, the iCE5LP4K FPGA is on IR receive/CEC duties.

    The only stated differences in video playback capabilities between the 1st and 2nd generation Apple TV 4K models are explicit support for HLG and 60 fps HDR playback at up to 3840 x 2160 resolution, which are likely enabled by the improved video codecs present in the newer A12 SoC. However, the continued use of the MCDP2920 means 4:2:2 chroma subsampling is still required for 4K HDR output at 60 fps.

    repoman27 -

    This is why I love iFixit. Everyone knows something. Thanks to repoman27 for sharing.

    Tobias Isakeit -

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    • IC identification bonus round:

    • Skyworks SKY66404-11 2.4 GHz Zigbee/Thread/Bluetooth front-end module (FEM) (likely)

    • Dialog Semiconductor SLG46538 mixed signal array

    • Texas Instruments CD3255 power monitor (likely)

    • Texas Instruments INA213 current sense amplifier

    • ON Semiconductor LMV331SQ3T2G single comparator

    • ON Semiconductor FPF2495C over-voltage, over-current load switch

    • ON Semiconductor FPF2498BUCX load switch

  9. Apple TV 4K 2021 Teardown: passo 9, imagem 1 %32 Apple TV 4K 2021 Teardown: passo 9, imagem 2 %32
    • IC Identification bonus round, part two:

    • Renesas PWM DC/DC controller

    • Texas Instruments TPS62130B step-down converter

    • Texas Instruments TPS715A01 80 mA / adj. LDO regulator

    • Diodes Incorporated 74LVC2G07FW5-7 dual buffer

    • Diodes Incorporated 74LVC1G07FW5-7 single buffer

    • Diodes Incorporated 74LVC2G04FW5-7 dual inverter

    • Diodes Incorporated 74LVC1G04FW5-7 single inverter

  10. Apple TV 4K 2021 Teardown: passo 10, imagem 1 %32 Apple TV 4K 2021 Teardown: passo 10, imagem 2 %32
    • The power supply board still lies buried under a hefty metal body for heat dissipation. We find the same conductive posts and modular C7 socket as in the past.

    • If you ever wondered: the cable used for the Apple TV may also fit in the power brick of your MacBook, or older iPad and iPhone chargers.

    • Some more silicon ID, while we're here:

    • Diodes Incorporated (formerly Lite-On) ABS20MH bridge rectifier

    • Infineon IPD65R1K4C6 N-channel MOSFET

    • NXP Semiconductor TEA1833LTS switched mode power supply controller

    What is the output of the power supply? I would like to convert the AppleTV to run directly on DC power (live off grid and prefer to skip the inverter). I did the conversion for the 4G AppleTV, but haven’t found any solid info on the 5G version…

    Gary Mack - Responder

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    • That's about it for the black box, but we're not remotely done yet.

    • Starting off with an iPhone-like opening procedure, we remove two P2 Pentalobe screws from the bottom edge of the aluminum wand.

    • On a hunch, we also scoop off the circular clickpad—from there, it's simple to disconnect it from the remote's main board.

    do you just use a spudger to pry up the circle?

    Cassandra Sandquist - Responder

  12. Apple TV 4K 2021 Teardown: passo 12, imagem 1 %32 Apple TV 4K 2021 Teardown: passo 12, imagem 2 %32 Apple TV 4K 2021 Teardown: passo 12, imagem 3 %32
    • But when pushing out the interior towards the front (like some iPod mini users may remember), all the buttons are going cross-eyed. So what’s the trick here?

    • For a closer look, we pop off every button like it was 2010 (first appearance of an aluminum remote for the Apple TV).

    • And boy do we find things.

    What's the part number of the round plastic thing? Remote fell down on the floor and broke the flex cable connector in 2 pieces.

    Anthony Anton - Responder

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    • To go any further, we first need to move that nifty little Siri side button out of the way. Otherwise the power button will obstruct the tech sled and hinder its removal.

    • If you can pull off the power button beforehand, it might be enough to just slide the Siri button sled back to get the internals out. As always, service instructions would be helpful, if Apple ever decides to share them—for now, we'll have to work it out on our own.

    • Fussiness aside, this should still prove easier to reassemble than something that was glued together.

  14. Apple TV 4K 2021 Teardown: passo 14, imagem 1 %32 Apple TV 4K 2021 Teardown: passo 14, imagem 2 %32 Apple TV 4K 2021 Teardown: passo 14, imagem 3 %32
    Ferramenta utilizada nesse passo:
    Minnow Driver Kit
    $14.95
    Comprar
    • What remains is no challenge for our Minnow Driver Kit.

    • The battery and charging port combo connects to the back of the main board via a ZIF connector, much the same as in the 4th generation remote control.

    • The power cell offers 1.52 Wh (398 mAh at 3.81 V), which is fractionally less than the 1.55 Wh (410 mAh) in the previous design iteration.

    • We’d hoped to find a slightly more user friendly method for two of the most likely repairs on this remote (charging port and battery).

    • The battery at least is likely to last longer than it would in a smartphone or tablet, since it won't go through charge cycles nearly as often. As long as it's not defective or subjected to uncomfortable temperatures, you should get at least a few years out of it.

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    • What else lies inside this remote? On the top side:

    • Nordic Semiconductor nRF52840 Bluetooth 5/Zigbee/NFC SoC

    • … and on the bottom:

    • Analog Devices 343S00092 capacitive touch controller

    • Maxim Integrated MAX77277 power management

    • NXP Semiconductor CBTL1610A3 port controller

    • (e1) AA5 105 (maybe Dialog Semiconductor audio codec)

    • Infrared diode

  16. Apple TV 4K 2021 Teardown: passo 16, imagem 1 %32
    • That's it for this round—time to put this back together and load up a fresh episode of Mythic Quest.

    • We'll end on a high note, which is to say: This is still pretty repairable for a streaming box. We have a few niggles, but you could do a lot worse.

    • Hey Siri, set a reminder—let's do this again in another four years.

  17. Considerações finais
    • Modular construction and only a few major components simplifies repair.
    • The remote's battery and Lightning cable are soldered together—but not to anything else, so they should be inexpensive to replace.
    • The power supply AC-in jack is modular.
    • The remote itself can be fussy to service and it's guarded by pentalobe screws, but it's not glued together.
    • Most of the I/O ports on the streaming box are soldered to the logic board.
    Índice de reparabilidade
    8
    Reparabilidade 8 de 10
    (10 é o mais fácil de reparar)

Tobias Isakeit

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11 comentários

So RAM is still 3GB?

mhlfrr - Responder

Yes, still 3 GB RAM.

Adriana Zwink -

It’s a nice little detail that the SoC is cooled from both the front and the back. Does the PMIC also get cooled by a heatsink?

Ethan Zuo - Responder

Thanks, nice work and very useful

youbecool - Responder

ZigBee chips in both the TV *and* remote? Does this mean that they could directly control HomeKit devices with ZigBee?

That Guy - Responder

This is for Thread (network protocol), which uses the same 802.15.4 standard. So yes and no. It will likely be for control of smarthome devices, but not plain zigbee devices.

Daniel R -

Is the power supply still the same as the Apple TV 4K model #A1842?

gpaint - Responder

Hello. Please tell me, which power supply is suitable for model a 2169? Will PA-1120-9A work?

Сергей Хомутов - Responder

Wie schaut es mit Ersatzteilen aus ? Sprich einem Akkukit wo halt Ladebuchse und Akku als eine Komponente sind. Gibt es dieses dann auch bald bei euch zu kaufen ?

Eric Stolowski - Responder

Why are they using an A12B for the SOC? Why use such an old model when more recent productions include better onboard video decoders?

Charlie Geraci - Responder

I think the main reason is the cost. The fewer transistors, the "easier" and the cheaper they can manufacture it. In addition, A12B is capable of all tasks that a streaming device requires nowadays. But I agree with you, I would also love having the latest SoC in my ATW 4K, cause why not. I don't want any CPU dips during decoding, but we probably won't have any with A12B for a long time.

Antal Kovács -

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