User's Manual

Viewsonic Tweety RF Remote Rev 2.9A November 05, 2001
Universal Electronics Inc. Confidential Page 56 of 63
8.2.4.4 Class III- Acceptable Flaws table
Maximum Inspection Time: 5 seconds
Type Size Qty
Parting Line Flash 0.15mm 1
Mismatch 0.15mm 1
Scratches 3.0x0.2x0.4mm 3
Contamination 1.0mm 4
Sink 0.5mm 3
8.2.4.5 Defects
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Any flaw that exceeds the limit of the above flaw table is a defect.
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Any two flaws on a given surface closer than 25mm is a defect.
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No more than three types of flaws are allowed on any one surface.
8.3 Durability Testing
8.3.1 Structure and Strength
•
The plastic parts shall withstand a 5 kg compressive force for 3 seconds at several points
without any physical damage by using a Slimline force gauge McMaster P/N 1365T24 (See
Appendix, Figure C).
•
The plastic parts shall withstand a bending force of 3 kg for 3 seconds applied at the ends of
the plastic assembly by using a Slimline force gauge McMaster P/N 1365T24 (See Appendix,
Figure D).
•
The keypad buttons shall withstand a 3kg over activation load vertically for 3 seconds by
using a Slimline force gauge McMaster P/N 1365T24 (See Appendix, Figure E).
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The base of the keypad must not be exposed from the key opening after the 1.5kg lateral force
is applied by using a Slimline force gauge McMaster P/N 1365T24 (See Appendix, Figure F).
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The keypad shall not be damaged in normal operation using pen, pencil, or fingernail.
8.3.2 Printing
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All text printed on plastic surfaces or switch buttons must withstand normal shipping and
handling.
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All printed legends must pass the Scotch Super strength packaging tape (3M cat no. 3506) test.
Scotch tape is applied on the test surface and then removed three times at a 45° angle (each
time a new tape). The printing shall not exhibit evident defects such as flaking, chipping,
blistering, or de-lamination.
•
All printed legends on plastic surfaces and keypad must be readable after being subjected to
500 cycles of abrasion @ 500 gram load with standard 100% cotton cloth as test piece.