Hi, first post here so I am sorry in advance for any noobie errors. I recently bought an Extech Ex330 after watching Dave's $50 shootout, I thought I would have a quick look inside just to check it all looked OK. After removing the back I was very surprised to see the main chip appears to be unpopulated, picture attached (including screenshot from the YouTube shootout which shows it populated). Wonder if people think this is simply a case of them revising the board and no longer needing the chip, or would this raise your suspicions? Thanks.