TRS 80 Model 1 Question

Hello. I am about to take a TRS 80 under the knife to repair a keyboard. The computer works fine, 16K Model 1/ 008 (never seen one with a part number ending with "1008". The S/N 0000738) ...Anyway the E key does not work on the main keyboard, and the 2 key does not work on the number pad. I believe it's a contact problem, not a chip problem, based on what I have read. I have a schematic for TRS 80 Model III. I *assume* that the model I and III keyboards are basically the same enough to give me a clue where to isolate the circuitry for the "E" and "2" keys . Looking for a second opinion. Also if anyone on this mailing list knows details about the TRS 80 "008", I would be curious to lean more. I believe this is the last version of the TRS 80 Model 1, but other than that I have found few references to this model on the Internet from searching. bill from wilm, delaware