I'm working on an Acer Aspire 5336-2524 with LED display. I have a new screen and harness that match the old parts. I can't get them to plug together. The contacts appear to face upward on both parts, so no contact to the terminals but a big short across the brass strip if I force then together. Is something different about an LED connection? I've done hundreds of LCD's but this is the first LED I've seen. The new harness has the tape on top so it's not possible to be upside down.