This WRT1900AC disassemble article pays more attention to the feelings of router workmanship. It is easy to dismantle as a whole. It only took more than an hour before and after, and it took off the fine light and loaded it back. It also included taking pictures. And looked at some of the lines.
However, the outer casing of this machine is the most difficult to remove. After removing the four screws, I never knew how to proceed down. Is it awkward or awkward? In the end, I found out that I couldn't open it. I had to habitually search. When the video was not found, I found the disassemble sticker. Only then did I know that this place could be pulled out with a little brute force. I made a bit of brute force, it was quite easy to remove it, but to be honest, the sound of a few plastic buckles that made me stunned me and I was particularly afraid of breaking it. At this time, the front and rear blue and black parts were taken apart.
The earliest thing I noticed, except for the large two large metal blocks that look like aluminum in the middle, are actually the same kind of LED lights. The two big metal blocks, one is obviously a heat sink - I just remembered that this is one of the most embarrassing places in this series of routers: actually with a radiator, but then I immediately remembered that in fact, this WRT1900 series still has The other one, not only with a radiator but also with a fan, in fact, from the online teardown diagram, that thing is really no different from a normal computer motherboard.
But what I noticed more at this time is actually the thing that should be the indicator light in front of the row. In fact, when I haven't removed it, I think that the indicator light of this router, and the general domestic or ordinary router, clearly see that the LED indicator is different. Its front is a flat closed plastic panel, the dark outer shell, only one strip of light with various indicating shapes reveals light, this place has nothing to do with technology, but this appearance is very scientific and technological, adding a few Our love. When I first saw this router, I was shocked by this appearance. My first feeling was that it was like a UFO, so I even thought of it, combining the router and the four axes. Let the router move in the air and dynamically improve its signal quality.
The hardest part to remove is actually not the place, but the half of the shell that peels off the black half of the top of the router. It is really very difficult to dismantle. Because of the entire black shell, there are seven or eight plastic terminals, which are fastened together with the lower half, especially the two places close to the screw, and the buckle is tight. Be the most careful and spend the most time. At first, I would like to refer to the disassemble sticker that the buddy said, using a word screw to tilt up, but obviously I did not understand how he is a war, I did not succeed.
In the end, I took half of my luck and didn't have the patience. I just wanted to slap it. I didn't expect this trick to work. I groaned a little bit, and the sound that made me afraid of smashing sounded again. Fortunately, I took a closer look, and the plastic clip was quite strong and unbroken. So I went to the other side, when I was not too concerned about that voice. In the end, I successfully removed half of the shell. From then on, the process of dismantling has become smooth and fast, and there is no barrier.
At this time, I found my eyes spurted for the first time.
Did you see the two square metal shells in the middle? Guess what? That's just a USB port!
Recall that in other products, including the USB port we saw on the computer motherboard, it was terrible and ugly. The router used in this router is not exactly the same, although I do not understand the manufacturing process, but it is clear that this thing shows its high-grade thick and steady.
In fact, many times, we buy foreign brands of electronic products, such as the Fluke multimeter we are most familiar with, I do not expect it to look good performance parameters, only domestic cottage goods like to play this (but generally do not do well in the end Become a meaningless virtual standard). We trust and favor foreign brands. The most common reason is to believe in its workmanship and first-class materials.
In fact, the feeling of “first-class work†is the deepest feeling I feel during the dismantling process.
The outer casing is not easy to disassemble, but the inside is well disassembled. Compared with the initial care, I was afraid that the plastic shell would be cut off. I found that it was very well removed, although the structure was not simple. You can see by looking at a set of pictures. There are many places inside that can be taken apart. Layer by layer, a lot of famous, but the operation is very simple.
The metal cover on the side was removed. This place was originally the place where the router opened the upper shell, and the large silver shell on the left side was opened. Good guy, the line inside is quite complicated, the light dominates the appearance. There are two marvel chips, the model looks at it, it seems to be the same, but because I am not familiar with this chip, I don’t know what it is.
This is the radiator on the right. I thought I would see silicone and CPU when I removed it, but it didn't. (The other is indeed the case). I did not expect a layer below.
These two big chips are still marvel. It seems that this router mainly uses marvel chips. When I look at the teardown stickers, I remember that there are some posts that sort out the main chips that appear above, some are switches, some are routers, and some of them are wireless transceiver chips. I haven't tried to dismantle this type of 3C product. However, I have occasionally experienced several times. I often see the chip being erased, so that I don't even know what chip it is. There is no way to study it.
This time, I have a lot of photos that are close-up details. I want to use the mobile phone camera to capture the silkscreen of the chip to distinguish the chip model - but then I feel so much more, because there are many ready-made posts online, their cameras and shooting The technology is far above me, and there is a clear list, I even suspect that I can find the circuit diagram of this router.
But then again, its software is also using the open source openwrt system, it seems to be able to copy. Of course, this is not the case. At least people have not open sourced the software source code they use. Just the bin file is used for firmware updates. This is still a kind of strength from the strength, I don't guess whether it has been copied by countless people, and whether he is very helpless, but at least it has a kind of "I am completely stripped to show you not afraid of you" The momentum of the real strong. This must come from the mentality that an extremely powerful industry king can have.
About this, I finally want to show two places. That is the place on the board with two dog skin plasters that are black and ignorant. I have always been conspiring to think that there must be secrets here, so I carefully opened them, but the truth of the truth is (see picture)å•¥Dumu has! !
I don't really have a say for this, because I don't know the hardware, although I have to solder the board occasionally, but most of the things I get are 0805 level resistance and general ssop lfqp package, and this Above, it is obviously more advanced, but it is probably because I don't understand it. I don't know if it is actually used now. The device package sizes on this board vary widely. The resistance is up to 0805 and the smallest is 0201.
And several of Marvel's masters are not seeing the pad package. This board looks very different from the average notebook motherboard. A router is essentially the same as a computer. However, because I am used to the tens of hundreds or even a dozen small routers, when I saw this hardware that is no different from a notebook, it is still very shocking.
This is of course the outer shell. Because of the devices inside, it is easy to disassemble and install. As long as you carefully observe, people who I rarely disassemble will quickly master the skills they need. This casing is really simple to install. Basically it is just one plug and one.
This machine, although positioned high-end, but from its design point of view, seems to be the gameplay of enthusiasts. Real enthusiasts certainly don't just have to update the firmware. Especially the smart routers that are now hot, if you run into a special MCU like me, who said that I can't open it and add something to play on it. The inside of this router, from the simplicity of my disassembly process, obviously does not intend to be closed, otherwise its several covers or radiators directly use a fixed installation method.
Finally, talk about the indicator that caught my attention at the beginning.
It should be known that this flexible disassembly method is absolutely costly for production. Then I would like to know, why, the shell should be designed so difficult to remove? It is true that in order to reduce the number of screws, it is a very clever and easy way to use plastic buttons to embed. However, as I have seen in the previous dismantling experience, it is enough to show that this method is difficult to dismantle while facilitating trouble. If dismantling is difficult, what is the point of reloading it is simple and meaningful? Unless you simply don't expect your buyers to be just ordinary users who just want to buy them, not the GEEK DIY enthusiasts of super enthusiasts? But from the above analysis it seems that this is not the case. What I want to say here is, to be honest, I really don't care too much about disassembling a few screws. I am especially afraid of not being able to find a place to dismantle, and I am afraid that I will accidentally damage the casing.
This thing, just removed, I am not sure that it is just some light guides, I always thought that this is some special custom shape LED lights. However, when I removed this piece, I saw the SMD LED light hidden underneath. And when these white strips don't have any electrical connections, I'm sure that this is really a light guide!
The light guide bar has a good advantage. I don’t think it’s too good. However, people who are slightly careful can notice that the light guide strip is frosted. This has the advantage that the light that is revealed is much softer. . Therefore, even if the brightness of the lamp is high, it will not look very glaring.
Finally, since I have no experience with routers and wireless RF circuits, as well as PCB layouts, I can only marvel at the complexity of this circuit, like the one that is very much like the master of the two Marvel master chips. The part inside the outer casing is very small. The only thing I have seen inside for a long time is:
1. Several lines of continuous arcing are connected to a line that looks very much like a river. This is not the same as the general PCB. It is full of ornamentalism. As for whether there is radio frequency wiring, even Do not understand. Just remember, the RF thing, the wiring is also very particular.
2. I seem to recognize a few PA (radio frequency power amplifier) ​​chips, and several sets of balun matching lines with 0201 capacitors or inductors nearby. I am not familiar with this, just because I have done CC2530, so I am very impressed with this circuit structure.
From this, I began to judge, it is the main control CPU of the entire router under the radiator, these two must be the wireless transceiver control chip. However, any excessive guessing is superfluous. Many of the online demolished are no more than my completely disassembled stickers. If you want to know more, go directly to search faster.
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