Hello, I am an ex-lurker, sub-genius type person who is trying to repair a MBP that appears to have a few problems. I can't seem to find a dedicated mothrboard repair forum here, so apologies for the inappropriately positioned new thread, if anyone can suggest a better place for it I would be glad to delete/move the post. The first problem that there is no light on the magsafe connector. I do have Board View and schematic files for the motherboard which is an: A1286 - EMC 2253 - 820-2850-a - K18. I am going through the G3 Hot circuit diagnosing the components but I notice that my schematic PDF (pg. 64) does not specify the resistances for some of the resistors. For example R6990, R6992 and R6993 are specified as '''5% MF-LF 1/16W 402''' This gives me a lot of useful information, but no Ohm value to measure. I have looked at the schematics for other MBP boards, some have the Ohms, but the circuits are different and include diodes. Could someone please help me with the resistance values for these components?