Thanks ElectroGeeza this problem is Fixed, but I have another. no access to hard disk LED:000000CC FAddr:0024A051 After you have connected the power to the circuit board, press CTRL+Z in your HyperTerminal session. You should now see a prompt like this: CODEF3 T> If you do not see this prompt, check your RS-232 connections to the drive. (you may have the TX and RX flipped). Now we'll need to access the Level 2, type: CODEF3 T>/2 (enter) F3 2> And type (to spind down the motor): CODEF3 2>Z (enter) Spin Down Complete Elapsed Time 0.147 msecs (the time will vary here) F3 2> So much perfect But With the POWER CONNECTED to the PCB board, as well as your TX/RX terminal wires, mount the board back on the HDA case. You must have the power connected when you do this. Now type (to start the motor): CODEF3 2>U (enter) I can not the HyperTerminal is bloqued I can not write. Thanks