User's Manual

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
3. WORKMANSHIP STANDARDS
3.1 Electrical Criteria
Electrical assemblies and components shall meet the requirements of IPC-A-610 and
J-STD-001, Class-1.
3.2 Keycap Cosmetics
The legend of keycap has to be printed with LASER MARKING methodology
by SEJIN standard and will have to pass the Sejin abrasion test.