Based on illustration 1 above, the melted condition causing long off output produced from defective product andthis abnormal condition detected as NG by electrical tester since out of product specification.* Due to this condition, the defective sample would sometimes fail to react and jump during language selection,which the customer was facing.* These returned samples were subjected to a higher heating application, causing the actuator and contact case materials to melt.We suspected this condition occurred during the soldering process.* Since there is no application of soldering during ALPS production assembly, we suspect that this condition occurredafter ALPS.* Therefore, we recommend customers re-confirm their process and follow ALPS soldering standards to avoid this failurere-occurring.Refer to Attachment 1 for the soldering specification.