OPTIMOD-FM INSTALLATION
2-45
If you have forgotten your “All Screens” passcode…
You can access the 8400 even if you have forgotten your All Screens passcode. There are
several ways to do this.
1. If your unit is an 8400 (i.e., if it has a full-featured front panel):
A) Press the Enter button within one second after the 8400 displays its initial splash
screen upon boot-up.
B) Choose whether you will reset all passcodes (but retain other customizations, like
I/O levels and user presets), or if you will reset the unit to its factory defaults. In ei-
ther case, all existing passcodes will be erased.
If you reset only the passcodes, the front panel will not unlock automatically.
After passcode reset, there will be one passcode, ADMIN, with All Screens
privileges. Use this passcode to unlock the front panel normally.
If you reset the unit to its factory defaults, the panel will unlock automatically.
Please note that resetting the unit to its factory defaults:
• Deletes all User Presets
• Resets all global parameters to factory default set-
tings
• Deletes all Automation Events
• Restores Remote Interface inputs 1-8 to “no func-
tion”
• Clears all passcodes
2. If your unit is an 8400/PD (i.e., if it has a blank front panel):
There are two ways to unlock an 8400/PD: the method described immediately
below, and via a connection to a PC running a terminal program. The latter is
described in Administering the 8400 via a Terminal Program on a PC on
page 2-47.
A) Remove AC power from your 8400.
B) Connect pins 2 and 3 on Serial Port 2 of your 8400.
You can prepare a special dB9 connector with pins 2 and 3 soldered together,
although it is probably easiest to make the connection by a bent paper clip in-
serted into pins 2 and 3 of the null modem cable shipped with your 8400.
Maximum voltage on this clip with respect to ground is 12 volts DC, which is
very unlikely to cause an electric shock. However, do not use the “paper clip”
technique if it violates the safety regulations in your country.
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