Fatar TP/9S - APPEARANCE CRITERIA; QC - INCOMING INSPECTION; SAMPLING PLAN; INCOMING INSPECTION TEST

TP/9S 6509xxxx
APPEARANCE CRITERIA
TEST ITEM TEST METHOD ACC. CRITERIA
Gap of adjacent white keys Caliber 1.1 ± 0.5mm
Height tolerance of adjacent white keys Ruler ≤ 0.50mm
Scratches Check by film
Scratches dimension A-Zone B-Zone
≤ 0.8mm ≤ 2pcs ≤ 4pcs
≤ 1.5mm 0pcs ≤ 2pcs
Contaminations Check by film
Spots dimension A-Zone B-Zone
≤ 0.3mm ≤ 2pcs ≤ 4pcs
≤ 0.5mm 0pcs ≤ 3pcs
Color Visual Not acceptable any visible color variation
between different keys
Shrink Visual Not acceptable any visible shrink
QC – INCOMING INSPECTION
SAMPLING PLAN
According to ISO2859, ANSI/ASQ Z1.4-2003, NF06-022, BS 6001, DIN 40080, use the following:
• General Level I
• AQL 1.5
INCOMING INSPECTION TEST
• Cosmetic Inspection
• Measurement of the AFTERTOUCH values (TABLE 2-4)
QC – ASSEMBLY LINE INSPECTION
ASSEMBLY LINE QC
• 100% inspection
• Play all the keys
– Every key must play sound
– o Noise across the whole keyboard must be consistent such that no one key sounds louder or lower than
any other. Noise character must remain consistent across the keyboard
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