one of my DL1 has no Blue output, my projector works fine it seems like the blue connection are not connected inside, is there anyway or maybe a manual to figure out what happen
It sounds like your I/O panel is the culprit. The blue relay is probably not functioning correctly. Sometimes you can tap on the relay itself and, in your case, see the blue cut in and out. Also, the only wires inside the fixture that could be disconnected, and causing the problem that you are seeing, are the RGBHV wires running directly from the I/O panel to the rear of the projector.
It sounds like your I/O panel is the culprit. The blue relay is probably not functioning correctly. Sometimes you can tap on the relay itself and, in your case, see the blue cut in and out. Also, the only wires inside the fixture that could be disconnected, and causing the problem that you are seeing, are the RGBHV wires running directly from the I/O panel to the rear of the projector.
