Whenever possible, this repair should be made at least three millimeters away from contacts that will later be soldered in order to minimize the chance of reflowing the repair. The damaged trace should be cut away and removed using a cutting tool, being careful not to damage any surrounding traces, components and contacts. Step 1: Scrape away resist from repair areas. Any content that diverges or supplements the IPC standard with be noted on the graphics, and text will be blue. The graphics and text have been created to provide easy-to-use instructions. Purchase the full standard from the IPC organization. Note: This guide is based on the IPC 7721 4.2.5 standard. FOCCUS Transportable I & M Fiber Optic Cleaning Kit.
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