How to set 2820 sw to default settng when Diagnostic Console has password?

[perchang]

A)

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Catalyst 2820 Management Console

Copyright (c) Cisco Systems, Inc. 1993-1995

All rights reserved.

Ethernet address: 00-C0-1D-80-6F-79

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1 user(s) now active on Management Console.

Enter password:

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B)

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Cisco Systems Diagnostic Console

Copyright(c) Cisco Systems, Inc. 1996

All rights reserved.

Ethernet Address: 00-C0-1D-80-6F-79

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Enter main console password:

[candv]

think you can hold down the selection button on the fron and power it off/on holding the button should take you into the diagnostics where you can see and delete the password etc.