Thanks. I tried all the NEC codes for my Dish remote, and no dice. It may be though that something's wrong with the projector's remote circuitry, I don't know.
Next step is to upgrade the
firmware. Who has rs232 anymore? I do have a USB-to-UART adapter, and have loaded the driver for Winduhs. But when I run the firmware upgrade utility it insists on a port from com1-255. No way to direct it to a USB-to-serial port. No idea what to do about that.
Ya smithfarmer, I've been trying the back and front pickups. I suspect their wires go to the same circuitry. I'd hoped the Dish remote would work with a NEC code, in the place of the Planar remote, but no luck.