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Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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PIIX4E Package
eg
http://blog.makezine.com/_support.ga...00264_m0026 4 07.jpg This package uses a secondary board , outlined in white square in the above pic. On the periphery, just about visible in that pic, of this square board there are traces , approximately 50 to a side. Not all have a corresponding dot pad. Underlying array is 20 x 20 , not all pinned, and excluding repeated grounds and power rails , maybe about 4x 50 active pins. If you remove the lacquer covering, do each of these peripheral traces , go to each active pin, hidden underneath? Is there a structure to the order of these linear traces to the subset of pin array row/col , corresponding to that edge ? -- Diverse Devices, Southampton, England electronic hints and repair briefs , schematics/manuals list on http://home.graffiti.net/diverse:graffiti.net/ |
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