Optoma EP774 Service Manual page 61

6-8. Hyper Terminal setting guide
6-8-1 Connect the RS232 Cable between your computer and Projector。
6-8-2 Open HyperTerminal
Window2000/XP HyperTerminal path：
Start \ Programs \ Accessories \ Communications \ HyperTerminal。
6-8-3 Setting the HyperTerminal parameter：
Step 1. Type the connection name .
Company Confidential Optoma_______________________
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2007/06/13