HP 3390 Service Manual - Page 293
How to use the parts lists and diagrams, Types of screws, CAUTION
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How to use the parts lists and diagrams The figures in this chapter show the major subassemblies in the all-in-one and their component parts. A parts list table follows each exploded view assembly diagram. Each table lists the item number, the associated part number, and the description of each part. If a part is not listed in the table, then it is not a field replacement unit (FRU). CAUTION Be sure to order the correct part. When looking for part numbers for electrical components, pay careful attention to the voltage that is listed in the description column to ensure that the part number selected is for the correct all-in-one model. NOTE In this manual, the abbreviation "PCA" stands for "printed circuit board assembly." components described as a PCA might consist of a single circuit board or a circuit board plus other parts, such as cables and sensors. Types of screws Illustration Description Screw, RS Size M3X6 M4X12 Part Number XA9-1495-000CN XA9-0722-000CN Use Used to secure metal to metal Screw w/washer M3X8 Screw, tapping M3X6 Screw, tapping, truss head M4X10 XA9-1420-000CN XB9-1503-000CN XB4-7401-000CN Used to secure metal components to metal components (for example, a ground wire to the frame) Used to secure anything to plastic Used to secure anything to plastic 12 mm ENWW How to use the parts lists and diagrams 271