Error 500 - 504; first, check it is all connected

Open 1401 - (500 - 504)

Check the following

That the 1401 is plugged into a working power supply.
That the 1401 is switched on.
That the cables are correctly plugged into both your 1401 and your system.
That any broken cables are replaced and connected correctly in as described in the user's handbook

Does your 1401 now work?

Yes No