Se Jin Electron Inc SKR-3406 Manuel D’Utilisation

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    2.4 Key top Height Variation 
The key top height variation must not greater than 0.5mm when measured 
between the center to center of keys next to each other. The measurement will be 
performed with keys in the home positions. 
 
2.5 Keytop Alignment 
The key top alignment tolerances must not exceed 0.5mm when keytop 
measured between the center to center of keys next to each other. The 
measurement will be performed with keys in the home positions. 
 
2.6 Rotational Alignment 
The maximum rotation of key shall be less than 0.5mm as shown below. 
 
Rotational Alignment
Alignment
Height variation
 
2.7 End stroke strength   
End stroke should withstand a static load of 500gf applied on the tip of the key 
stem in the perpendicular direction for 1minute. 
2.8 Keytop pulling strength 
The keytop pull out force shall be 0.5Kg or more at normal temperature during 
initial conditions.   
The keytop shall be not pulled out by an ordinary typing operations. 
2.09 Back Label 
The label will be squarely aligned and securely adhered with no voids or air 
bubbles.    The materials used and the way of manufacture and installation 
will be such as to render the label "tamper-proof," that is, the label material 
and adhesive combination will be such that a label will be damaged, 
delaminated, or destroyed upon removal or attempted removal.    The back 
label will contain MIC agency symbols, model number, part number, serial 
number and product of origin.     
 
          ※  Serial Number Information 
        1 K A B 000001 
 
                   Produced Quantity 
                   Production Line 
                                      Internal LOT Number 
                   Produced Month (A=Jan, B=Feb, C=Mar, D=Apr, E=May, F=Jun,  
                                                  G=Jul, H= Aug, I=Sep, J=Oct, K=Nov, L=Dec) 
                                      Last digit of Year