On/off button does not work

Your register is on the initialisation screen. This means it is ready for programming. This happens if the battery has not been replaced on time (usually about every five years). If the power is turned off when the battery is flat or faulty, the memory is cleared and all of your programming is lost.
There is a slim chance that you still have the programming if the battery is not completely dead. Try this-

1.Turn power switch off.
2. Hold RECEIPT FEED button down while you turn power on. Keep holding the button for 5 seconds, then let go.
3. You should see the copyright message.
4. Press SUBTOTAL (or ST)
5. You should see a message asking for flag clear or init2. Make sure FLAG CLEAR is highlighted and press the YES button on the keyboard.
6. The register will now leave init mode and you can select register mode. You may have to sign on with your code or press the clerk button (however you normally sign on to use the machine).

If the text is scrambled, or your product buttons do not work, you have lost the program and it will need full reprogramming. Either way, leave it turned on to charge the battery and see a dealer about having the battery (internal) checked.

Power supplies like this usually invert the power from your wall plug into usable current thru its outlets. The surge protection is likely direct without being inverted. The remainder of the plugs , likely to be the source of power during an outage, are likely on the inverter circuit that supplies power thru a battery that is always charging. These batteries do not 'store' well over time and are meant to have occaissional/full time activity. Lengthy storage without use leads to shorting of a cell or two inside the battery and then it would not be able to pass the current needed to run items during a short power outage. If you can not manually recondition the battery..replacement of the battery would be the next step.

What do you see on the display when it is plugged in? Does it show the time or any other information? Does it do anything at all when you press the power button?

If you remove and replace your batteries...you will not lose the memory. The unit will store up to 90 measurements in non-volatile memory...so it will stay there.

I have the same unit and use these directions....and never had issues with setting the date and time.

2.2
Setting the Date and Time
Your blood pressure monitor automatically stores up to 90
measurements values with the date and time. To make use of the
memory and average values functions:
• Set the unit to the correct date and time before taking a measurement
for the first time.
• If the batteries have been removed for more than 30 seconds, the
Date/Time setting will need to be set.
1. Press and hold the Date/time
setting button (
) to adjust the
date and time. The year digits
(2008) will flash on the display.
2. Press the Memory button ( ) to
advance the digits one at a time.
Notes:
• The range for the year setting is
2008 to 2030. If the year
reaches 2030, it will return to
2008.
• If you hold down the Memory
button ( ), the digits will
advance rapidly.
3.
Press the Date/time setting
button (
) to confirm the setting
when the desired number
appears on the display.
The year is set and the month
digits flash on the display.
4.
Repeat steps 2 and 3 to set the
month.
The month is set and the day
digits flash on the display.
5.
Repeat steps 2 and 3 to set the
day.
The day is set and the hour digits
flash on the display.
6.
Repeat steps 2 and 3 to set the
hour.
The hour is set and the minutes
digits flash on the display.
7.
Repeat steps 2 and 3 to set the
minutes.
The minutes settings is set.
Press the Date/time setting
button (
) to turn the monitor
off.
When adjusting the date and
time, press the Date/time setting
button (
) to turn the monitor
on, follow the steps above, and press the START/STOP
button to turn the monitor off.

Good luck.
Semper Fi,
Z

It sounds like the machine has lost some programming. What you were doing once per month is what I recommend if not used regularly, but the battery has probably now got to the stage where it is too old to even hold charge for a month. It is probably best to get the battery (internal vanadium type) replaced as it may have started leaking if it is too old. The dealer who replaces it can reset your decimal places at the same time. If you just want to get it running as is and take a chance, then do the flag clear (to get the FFFFFFFFFF on display then SUBTOTAL) on one of your WORKING machines, and tell me the big number that it prints out (this will not lose any data on your working machines, it just reads the settings)

There is a trick to charging the battery in these small mp3 players. It won't charge if it is turned on, and it won't charges if it's turned off. Here's what to do...
1. plug the player into your USB port. or wall charger
2. switch the player on using the mechanical switch (on the side)
3. turn it off by either holding down the play button, or selecting "System" from the menu
4. The screen will go black and the battery will begin charging.
That is if the battery is still chargeable after all this time. The battery may well require replacing.

Change your BIOS battery.
I have an old Shuttle XPC sn41g2. It's been running almost constantly since it was new. About a year ago it started to be difficult, it was difficult to start and sometimes I had to try several times before it started. At the end I had to disconnect and reconnect the mains supply everytime i had to reboot the PC. Then one day I discovered that the prosessor was running at the lowest standard frequency so I went to the BIOS to set it right, did so and rebooted, and the prosessor stil wouldn't run right. After some thought I changed the BIOS battery, went to the BIOS, resat all settings, then it rebooted normally and since it has been running like new.

1. call length is diminished
2. battery takes a long time to - or never fully - charges
3. Handset will not turn on.
4. Handset gets hot during use.
5. Approximately 2 years of regular service.

Any of these indicate it is time to replace it.

Thanks for using Fixya - a 4 THUMBS rating is appreciated for answering your FREE question.

I had the some problem... found a fix on another thread here on fixya...
hold the power button and at the same time press the play button.

Mine turned on after about 3-4 seconds of holding them down together!