简介

当世界其他地方都在期待iPad的发布时,我们已经上手最新发布的3G 版iPad(初代) 。

想要跟上硬件世界的步伐吗?

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备受期待的3G版iPad (初代)终于到我们手中了!
  • 备受期待的3G版iPad (初代)终于到我们手中了!

  • WiFi+3G通讯的iPad。我们1个月前就从FCC的数据库中知道此款产品的存在。

  • 3G版iPad的外观与WiFi版iPad有明显区别,就是有一个黑色塑料的射频窗口。

  • 3G版 iPad支持UMTS/HSDPA在850、1900和2100MHz和GSM/EDGE在850,900,1800,和1900 MHz。

  • 在苹果的戏剧性转变中,iPad没有锁,也没有绑定到特定的运营商。

  • 在美国,AT&T是唯一支持iPad 3G频率的运营商。T-Mobile也支持,但只能在较慢的EDGE网络上工作。

Unless T-Mobile is now offering micro-SIM cards. AT&T still has the exclusive on this Apple device.

thecreative - 回复

来自 thecreative 的话:

Unless T-Mobile is now offering micro-SIM cards. AT&T still has the exclusive on this Apple device.

As far as I know, the "micro" is only in the sorrounding area of the "electronic" part, so, correctly cut-out big-SIMs will be converted to micro-SIMs.

Luis Alejandro Masanti - 回复

来自 thecreative 的话:

Unless T-Mobile is now offering micro-SIM cards. AT&T still has the exclusive on this Apple device.

That and their 3G frequencies are incompatible.

Frank - 回复

.

it's very simple, so, HP and Google can soon make two low cost clones with webOS and ChromeOS

.

gaetano marano - 回复

I can really see a lot of user cutting down their SIM cards to fit. Very practical. Let me know when someone actually does this.

thecreative - 回复

you can make your own microsim...

instructions for all SIMs (standard size) are here:

http://www.touchuserguide.com/2010/04/05...

Stefan Williams - 回复

Great article and images.. There's definitely rooms for a USB port haha

guybrush - 回复

来自 gaetano marano 的话:

.

it's very simple, so, HP and Google can soon make two low cost clones with webOS and ChromeOS

.

Yea right... And also clone iPhone OS?

Rimsky Sucre - 回复

iPad的型号是A1337,正如之前FCC文件备注的那样。是的,我们认为那是l33t。
  • iPad的型号是A1337,正如之前FCC文件备注的那样。是的,我们认为那是l33t。

  • 浪费时间是没必要的,让我们看看里面有些什么。

  • 我们将把这次的拆解结果与一个月前独家发布的预生产FCC照片进行比较。

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  • 在小心地用金属撬棒撬动后,屏幕总成可以从后盖上取出。

  • 由于增加了3G模块,在这两部分分离之前,还有额外的天线排线必须断开。

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  • 3G版iPad (左)和WiFi版iPad (右)的内部结构。

  • 主要的区别包括3G模块,SIM小板,以及后盖顶部的塑料天线罩。

  • 3G版iPad并不像WiFi版iPad那么松散,但它仍然没有塞满。

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  • 用塑料撬棒将通讯模块上的天线撬开。这是通信模块上两个天线中的一个。

  • 通讯模块由Torx T4 螺丝固定。

  • 在拆下螺丝后,把通讯模块从逻辑主板上滑出。连接样式类似于迷你PCI Express卡。

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  • 取出micro-SIM卡。那是一个非常小的SIM卡!

  • iPad的SIM卡尺寸为12毫米x15毫米。不到iPhone 3GS标准尺寸SIM卡的一半的样子。

  • 你可以把一个全尺寸的SIM卡剪成一个微型SIM卡。它的接触点是完全相容的。

The pin-out for a SIM and micro SIM are the same. You could cut down a full size SIM to fit and it would work.

Holland Rhodes - 回复

来自 Holland Rhodes 的话:

The pin-out for a SIM and micro SIM are the same. You could cut down a full size SIM to fit and it would work.

Yup pin-out, clock-speed, etc., are the same; I don't think there's been a SIM whose chip was larger than the contact area for over a decade, so be gentle with a sander, sand the @*%^*^! down, and voila.

sendai - 回复

  • 新到3G版iPad,有一个天线连接到显示器总成的背面。图中所示的铜箔片与液晶屏金属支架相连。苹果公司在结构和电气方面都很巧妙地使用了同样的金属。

Not sure what this antenna is. This tutorial shows all 3 antennas (wifi, gps, 3g) but this one is not specified. Any help will be appreciated.

Laith - 回复

This cable in step 7 is broken from the goldegn socket,

how can I repair that?

Thx

oliveryb - 回复

  • 用撬棒撬起后盖的SIM卡槽。

  • 它看起来不像苹果在空间上的排布。据我们所知,此板的唯一用途是将SIM卡连接到逻辑主板上。

This finally explains the extra connector from the wifi-only model. It's strange to use so many pins to interface with the 6-contact card. Is there any active circuitry in the SIM cable/holder?

cityzen - 回复

  • 3G版iPad (左)和WiFi版iPad (右)逻辑主板之间的比较。

  • 在比较这两款型号时,WiFi版iPad后半部分有较大的开放空间。

The comment here doesn't match the picture.

cityzen - 回复

来自 cityzen 的话:

The comment here doesn't match the picture.

Oh, nevermind; now I see the difference. It seemed like the comment belonged to step 13.

cityzen - 回复

  • 用撬棒的尖端挑开GPS天线ZIF电缆接头。

  • GPS天线组件可用撬棒的平口撬开。

I didn't realize until now that this antenna also serves as the proximity sensor.

Tom Chai - 回复

  • GPS天线组件的正面和反面。

I don't think this is a GPS antenna. Suppose it is a capacity sensor for proximity detection.

Kelvin - 回复

Yes, you are right.

Tom Chai -

  • 抬起外壳上的蜂窝状天线。

  • 这就是蜂窝状天线。

  • 从左到右分别是:WiFi/蓝牙天线、GPS天线和3G蜂窝天线。

Is the Wi-Fi antenna in the Apple logo or in the top with the GPS and 3G antenna? This should improve the Wi-Fi reception

Yoru - 回复

Please, where exactly is the A-GPS chipset on the com. board?

Thanks

Francis

Francis - 回复

来自 Francis 的话:

Please, where exactly is the A-GPS chipset on the com. board?

It's the Broadcom part in the top-left of the board, to the left of the Skyworks chip.

Kyle Wiens - 回复

来自 Kyle Wiens 的话:

It's the Broadcom part in the top-left of the board, to the left of the Skyworks chip.

Thanks, and I guess the Infineon PMB6952 is just between these two, on the middle-left of the board. Is it?

Francis - 回复

I'm also curious about where the WiFi antenna is. Is it still only behind the Apple on the back, or is it different in the 3G model from the WiFi only model?

djfriar - 回复

I don't get it. The GPS antenna is plugged on the main board, next to a chip absent from the Wifi version, but the AGPS chip is on the 3G communication board. Is the analog GPS signal routed between the boards?

Yann - 回复

来自 Bigbird 的话:

That is so weird!! I also can not figure out how the GPS RF signal routes into the chip! The GPS antenna with B2B connector (Most use to transmit logical signal), not the RF coaxial cable to feed into. Can someone explain why apple uses this way to carry GPS signal?

Bigbird - 回复

Might be worth a note that you're only showing one of the wifi/BT antennas (the lower one), and not the one behind the Apple logo.

cityzen - 回复

I'm pretty sure the GPS antenna is the one on the screen. The antenna on the ZIF connector seems to be an FM antenna with the BGA part being an FM receiver?

Avalon - 回复

If these are all the antennas, can someone tell us which antenna is shown in step 7 then? Thanks.

Laith - 回复

  • 3G版的主板是A4处理器。

  • 第二张照片是WiFi版iPad的主板。

  • 关键区别:

    • 最明显的变化是在电路板的右侧添加了连接器。

    • 更微妙的是一个额外的小IC在A4处理器旁边的GPS天线的连接器。这可能是一个信号处理器,但我们不能确定它:编号:T3J 927 632567。

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  • 主板背面。

  • 没什么好看的,它和WiFi版的完全一样。

Check out the copyright dates between the two boards. Perhaps this indicates the 3g version took longer to work out - which would explain the later release date

Michael - 回复

The later release date had to do with FCC clearance IIRC.

Eric Hoffmann -

  • 苹果公司将电磁干扰屏蔽系统焊接到通讯板上,这使得我们向你展示芯片的过程充满了挑战性。尽管有这样的逆境,我们还是勇往直前,毫不畏惧地向你们展示:

    • 英飞凌337S3754 PMB 8878 x -金基带IC 5Y06115。这部分在预制单元中有英飞凌的标志,但是苹果公司用白色标记来掩盖制造商。这是和iPhone 3GS完全相同的基带处理器。

    • Skyworks SKY77340功放模块。

    • 三元功率放大器/滤波器。

    • 英飞凌U6952

    • Numonyx 36MY1EE

    • 右边是三个TriQuint功率放大器:TQM616035A、TQM666032B和TQM676031A。这些都是苹果在近两年前使用在iPhone3G上的芯片。

    • 博通 A-GPS BCM47501UBG F01003 P11 949871 SN

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  • 通信模块的背面。

  • 第二张照片来自预发布的FCC单元。我们的板子底部有额外的零件号标记,但与预生产单元完全相同。

  • 需要注意的是,博通A-GPS是在通讯小板上,这就是WiFi版iPad没有GPS的原因。

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  • 这就是3G版iPad的全家福。

  • 别忘了和WiFi版对比,二者容易混淆。

What DAC chip is used? Same as iPhone?

foosayer - 回复

What I'm truly curious about is adding 3G to a WiFi-only iPad. Would it be possible just to attach the extra required parts to the logic board?

Brandon Papworth - 回复

来自 Brandon Papworth 的话:

What I'm truly curious about is adding 3G to a WiFi-only iPad. Would it be possible just to attach the extra required parts to the logic board?

Most likely not. You would need to do some low level software stuff to get it recognised. Also, don't forget that the "PCI-e like" connecter isn't actually on the WiFi model, so you'd be hand soldering a custom connector (where would you source it) - or bypass the connector - and either way be hand soldering on a complex chip. You'd have to buy each edition of the iPad anyway, to examine the pinouts to know where to do it.

Ollie Ford - 回复

Is there conformal coating on all of the parts or in just certain areas?

James Seagle - 回复

Any chance of a weight breakdown for this version to compare to the WF one?

Jasper - 回复

来自 Jasper 的话:

Any chance of a weight breakdown for this version to compare to the WF one?

50 grams extra. It says so right on Apple's own tech specs page, and I don't see why they would lie about it :) Seems about right from guesstimating the weight of the extra parts.

Pio - 回复

Where is the hard drive? Anybody try installing a bigger hard drive?

Jean - 回复

来自 Jean 的话:

Where is the hard drive? Anybody try installing a bigger hard drive?

There is no standard HDD. It's flashed based solid state memory like on the iPhones which means you can't upgrade it.

OrangeSVTguy - 回复

Ok, so its not upgradeable but its shock proof. Anybody know if you hook up and external HD through the usb adapter, if it will read it?

Jean - 回复

来自 Jean 的话:

Anybody know if you hook up and external HD through the usb adapter, if it will read it?

The way it says it reads your camera strongly suggests it simply supports USB Mass Storage over that USBHost, so technically in hardware and even drivers it should be able to. Whether it can do anyhting more with the data in software than pull photos off it is another issue.

Jasper - 回复

来自 Jean 的话:

Ok, so its not upgradeable but its shock proof. Anybody know if you hook up and external HD through the usb adapter, if it will read it?

Someone has worked that out with some jail broken software. It's just not very easy.

http://www.engadget.com/2010/05/06/ipad-...

Eric Hoffmann - 回复

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