Millet TV 2S-48 disassemble report PS
Hello everyone, I am an electronic product enthusiast and have been watching the dynamics of various smart products on the Internet. And I think there are not many people like me, so today we talk about one of the big smart products--television. Television can be said to be indispensable for every family. From the previous black and white TVs to the current smart TVs, the changes that technology has brought us are something we did not dare to imagine before. Today we are taking a demonstration of Xiaomi TV. Since Xiaomi TV 1 was released on September 5, 2013, Xiaomi has already replaced the television series with three generations. The price and size of the TV series have already covered the consumption needs of various consumer tiers. It can be said to be very comprehensive.
Good below to start disassembling the millet 2S-48 version.
First, TV Features (characteristics)
First of all, we can see from the appearance, millet TV uses a full metal body design. The first impression of such a design is high-end, atmosphere. And the first two-color anodized aluminum alloy frame, there is a small boost to force the grid.
The thinnest point in the thickness: 9.9mm (approx. 46% of the width); the thickest point: about 50mm (about 54% of the width). Color gamut is also up to 85%, very good performance Here we look at the appearance of millet 2S
Second, Module Spec (Specifications)
1, the back plate half of the flat structure, thickness 9.9mm, width ~ 300mm, accounting for about 46% of the entire width;
2. The lower part is SECC material, adopts riveting with holes, and forms an integrated structure with the upper half through 15 riveting points;
3. U-shaped front frame adopts four-piece two-color anodized aluminum extrusion splicing, exquisite craftsmanship, stitch seam gap 4, front frame and back plate are fixed with four-ring plum blossom T5 Screw, screw number and distribution: T/L/R = 5/5/5pcs, the space between the side screws is ~200mm, the left and right side spacing is ~145mm, and the corner screw is ~20mm from the side of the front frame;
Third, material analysis (material analysis)
The frame adopts four-piece U-shaped aluminum extrusion and two-color anodizing.
The middle frame uses a one-piece plastic middle frame. And from the stacking of the module thickness, the thickness of 9.9mm, Bezel pressure Panel design 0.2mm Gap, the pressure is very tight, can only take the VA panel..
For other parameters, see the following table:
Fourth, Module Design Analysis (module design analysis)
1, the module white screen: all have a good degree of homogeneity, but the lower left corner of the linear leak light, about 5mm long.
2, the module black screen: good taste, no obvious light leakage throughout the dark state.
3. Panel Panel: In the BM area of ​​the Panel, Top/left/Right all present a full blue line, with no side ground;
4, into the light side of the cross-section analysis:
1) The Gap of the front frame and the pol on the Panel is only 0.2mm in design, and the design value is too small;
2) The Gap of pol and Top film under Panel is only 0.8mm;
3), Frame and Film almost 0 Gap design;
To meet the 9.9mm design:
1) Only VA screens can be used. IPS screens cannot meet thickness requirements.
2) In the current design, the front frame group is very tight, the assembly is difficult, and the overall thickness tolerance is only greater than 9.9mm
5, backplane components:
1. The backboard consists of four parts:
1). Top side plate: Appearance drawing, do 9.9mm thick flat surface appearance;
2). Down side Secc: stamped ribs to ensure the strength of the entire backplane;
3). Three sides (except D side): U-shaped Secc-Bracket, acting as a back wall of the back panel;
4). Side aluminum extrusion: wide 120mm, thickness 2.0t;
2, back panel 3 part splicing method:
1). The Top side plate and the Down side Secc are riveted using a perforated riveting process. The holes are sealed with black Mylar.
2). Three-sided U-shaped Secc-Bracket is attached to the riveted backplane with double-sided adhesive;
3). LED housing lock attached to Secc backplane side.
Well, so far we have completed the teardown of the millet TV 2S. Look, millet TV is still very good in terms of layout and workmanship. However, we also discovered some disadvantages during the dismantling process. Since we only dismantled one unit, we did not dare to conclude whether it was due to our own design defects or quality control problems. Looking forward to subsequent disassembles if this problem occurs
Good below to start disassembling the millet 2S-48 version.
First, TV Features (characteristics)
First of all, we can see from the appearance, millet TV uses a full metal body design. The first impression of such a design is high-end, atmosphere. And the first two-color anodized aluminum alloy frame, there is a small boost to force the grid.
The thinnest point in the thickness: 9.9mm (approx. 46% of the width); the thickest point: about 50mm (about 54% of the width). Color gamut is also up to 85%, very good performance Here we look at the appearance of millet 2S
Second, Module Spec (Specifications)
1, the back plate half of the flat structure, thickness 9.9mm, width ~ 300mm, accounting for about 46% of the entire width;
2. The lower part is SECC material, adopts riveting with holes, and forms an integrated structure with the upper half through 15 riveting points;
3. U-shaped front frame adopts four-piece two-color anodized aluminum extrusion splicing, exquisite craftsmanship, stitch seam gap 4, front frame and back plate are fixed with four-ring plum blossom T5 Screw, screw number and distribution: T/L/R = 5/5/5pcs, the space between the side screws is ~200mm, the left and right side spacing is ~145mm, and the corner screw is ~20mm from the side of the front frame;
Third, material analysis (material analysis)
The frame adopts four-piece U-shaped aluminum extrusion and two-color anodizing.
The middle frame uses a one-piece plastic middle frame. And from the stacking of the module thickness, the thickness of 9.9mm, Bezel pressure Panel design 0.2mm Gap, the pressure is very tight, can only take the VA panel..
For other parameters, see the following table:
Fourth, Module Design Analysis (module design analysis)
1, the module white screen: all have a good degree of homogeneity, but the lower left corner of the linear leak light, about 5mm long.
2, the module black screen: good taste, no obvious light leakage throughout the dark state.
4, into the light side of the cross-section analysis:
1) The Gap of the front frame and the pol on the Panel is only 0.2mm in design, and the design value is too small;
2) The Gap of pol and Top film under Panel is only 0.8mm;
3), Frame and Film almost 0 Gap design;
To meet the 9.9mm design:
1) Only VA screens can be used. IPS screens cannot meet thickness requirements.
2) In the current design, the front frame group is very tight, the assembly is difficult, and the overall thickness tolerance is only greater than 9.9mm
5, backplane components:
1. The backboard consists of four parts:
1). Top side plate: Appearance drawing, do 9.9mm thick flat surface appearance;
2). Down side Secc: stamped ribs to ensure the strength of the entire backplane;
3). Three sides (except D side): U-shaped Secc-Bracket, acting as a back wall of the back panel;
4). Side aluminum extrusion: wide 120mm, thickness 2.0t;
2, back panel 3 part splicing method:
1). The Top side plate and the Down side Secc are riveted using a perforated riveting process. The holes are sealed with black Mylar.
2). Three-sided U-shaped Secc-Bracket is attached to the riveted backplane with double-sided adhesive;
3). LED housing lock attached to Secc backplane side.
Well, so far we have completed the teardown of the millet TV 2S. Look, millet TV is still very good in terms of layout and workmanship. However, we also discovered some disadvantages during the dismantling process. Since we only dismantled one unit, we did not dare to conclude whether it was due to our own design defects or quality control problems. Looking forward to subsequent disassembles if this problem occurs
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