I don't know a thing about the PK, but this is what I found in the manual in section 1.9. HTH
There are two ways of turning the BrailleNote PK on and off. The one you will use most often is pressing the far right CONTROL key, Cbled, for three seconds (until it beeps once). This puts the BrailleNote PK into a standby mode, and is the best way to turn on and off for everyday usage. When you turn the unit on this way, you will be at the same place as you were when you turned off. If you are putting the BrailleNote PK into storage for a while, you should power it right down by holding down the far right and far left CONTROL keys, C1 and Cbled, at the same time for three seconds, until it beeps twice, and the word "off" appears on the braille display. This is not something you would do every day however as it also deletes any files you have created on the KeySoft System Disk. To turn it on again, repeat the holding down of the far right and far left CONTROL keys at the same time for three seconds. When the BrailleNote PK starts up, it will chime and announce the KeyS! oft version before putting you in the Main Menu. 1.10 Resets. The Reset function is activated by holding down the two right hand control keys, C3 and Cbled, together with a combination of dot keys. There are three kinds of resets possible on the BrailleNote PK, each has a different function. They are described below. Add1.1 Standard Reset Perform a standard reset when: - prompted to do so during an upgradestnew feature installation program to install new drivers and restart KeySoft -- the BN stops responding for any reason (assuming the problem is not that the power is off, or the battery is flat!) -- the BN generally seems to not be its normal self. To perform a standard reset, hold down the two right hand control keys, C3 and Cbled, until you hear a deep chirp. Release and repeat, holding down until you hear a chime. You will lose data if you have to reset while a file is open in the word processor, the planner is open, an email is being written or the address list is open and changes have been made and not saved, b! efore performing the reset. Add1.2 Reset with 1- 2- 3 held down. Hold down the dots 1-2-3 then press C3 and Cbled until you hear the BrailleNote PK chime. Runs the original factory-installed software. Useful if an upgrade or add-on has become corrupted and the BrailleNote PK will not start after a reset due to this. The data lost will be the same as above. Add1.3 Re-initialize with 4-5-6 (Hard Reset) If KeySoft still does not start, BrailleNote PK's memory may have been corrupted. If this has happened, then it is necessary to re-initialize the memory. Make sure the BrailleNote PK is switched on. Hold down keys 4-5-6 and then C3 and Cbled. The BrailleNote PK should beep immediately. Continue to hold down 4-5-6. After about ten seconds silence, a chime should sound and the BrailleNote PK should speak. Release the keys. KeySoft reports the software version and prompts for the date and time to be set. "KeySoft CE, version 3.0x. Build (number). The clock needs sett! ing. Date format. Press ENTER for USA." Press ENTER or S for USA format or press K for UK format. Press HELP at any time if you need help. KeySoft then prompts: "Time format. Press ENTER for 12 hour." Press 1 for a 12 hour clock, press 2 for the 24 hour clock followed by ENTER. "Time? Press ENTER for (time)." Press SPACE with H to obtain help on how to set the time. "Date? Press ENTER for (date)." Press SPACE with H to obtain help on how to set the date. Finally KeySoft displays: "Main Menu."
