Millet box 3S dismantling evaluation material selection process is very good

Because the millet box 3S uses a screw-free design, we need to use a paddle to disassemble the tool. The buckle structure of the millet box 3S is very strict, but it is not difficult to open, it is easy to open a ring.

The millet box 3S uses a blue PCB and is fastened to the upper panel cover of the box body with four screws.

This is a signal receiving and indicator display panel, a thin small strip.

The bottom plate is only a back plate, and the inner layer has a vertical bar texture (do not know how to describe it better) to strengthen the structural strength and ensure that the panel is not easy to bend.

Next, use a Phillips screwdriver to unscrew the four screws that are attached to the PCB. To tell the truth, the screws of the 3S box are still tight.

Dismantling the diagram

Screw off the screws to remove the PCB. The upper cover is fixed with common weight and thermal film.

â–² shield, millet box 3S PCB shield on the cover is very "hidden", I once thought that the back of this cover is welded dead, the back was not easy to open. In fact, the master shield including the back memory area is removable, while the WIFI module area is fixed (well, this is the case!)

The components on the main board are arranged in a regular and orderly manner; all chip technologies are adopted, all chip capacitors are used, no hand-welded parts, and the quality is more stable and the service life is more lasting.

Small shield inside should be WIFI/BT module

Hardware interface part, support HDMI2.0a standard, support 18G bandwidth, 4K@60Hz output, color, color depth and more.

The main control area is also affixed with thermal film, which provides stronger heat dissipation support and stable operation.

Master area

The millet box 3S uses the crystal morning Amlogic S905X processor, 4-core 64-bit Cortex A53 architecture, clocked up to 2.0GHz; with Mali-450 5-core GPU. The S905X has very obvious advantages in terms of integration. The single-chip solution integrates CPU, GPU, multi-decoder, Audio Codec, and network port PHY. In addition, in addition to conventional H.264 and H.265 support, the S905X also supports Google VP9 for the first time. Compared to the VP8, the code rate can be reduced by 50% compared to the VP8, and larger code blocks and more colors are supported. space.

For flash memory, Toshiba’s model number is THGBMHG6C1LBAIL and 8G eMMc5.1. EMMC5.1 has a faster transfer rate than previous generations.

The front and back PCBs have a total of 4 pieces of RAM. The model number is NANYA NT5CB256M16DP-EK, single chip 512MB, DDR3, and four pieces constitute 2G. The larger running space also provides a more stable and smooth handling experience for the millet box 3S.

Other words include some conventional power supplies, audio ICs, etc.

to sum up

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In fact, I did not mention in the article that the millet box 3S not only continued the red dot design award of the millet box 3 in terms of appearance, but also dealt with the internal structure. The complete and orderly arrangement and fine craftsmanship are all the advantages that the 3S box of the millet box can see. Compared to the millet box 3, the millet box 3S uses a brand new blue PCB (because of the color difference in the shooting, the actual color is light blue, the above figure is for reference only), and different SOC and storage combinations. Finally, for the millet box 3S to do a few points to sum up: 1, PC ABS environmental protection material body, no screw shape, simple and capable; whether it is the choice of materials or process, are very good; 2, blue PCB, component arrangement regular Order, all patch technology, quality is more stable. 3, powerful crystal Chen S905X 64-bit Cortex A53 architecture processor, clocked up to 2GHz, with Mali-450 5-core GPU, daily operation is familiar. 4, from South Asia and Toshiba manufacturers storage portfolio, eMMc5.1 standards, faster transfer rate. 5, equipped with HDMI2.0a standard, support for 18G bandwidth, 4K@60Hz output, color, color depth and more.

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