Reset Operation; Hard Reset; C-Mos Reset; Memory Change - Casio SA-5000 Service Manual

7. RESET OPERATION

7-1. Hard reset

It works as PC reset button.
1. Open the upper case.
2. Make short the terminals of JP2 by metal tweezers on the motherboard and turn the power
the power switch on.
3. Wait for 5 seconds and release the tweezers, then hard reset is performed.

7-2. C-MOS reset

It is necessay to clear the data when change the BIOS.
1. Open the upper case.
2. Make short the terminals of JP1 by metal tweezers according to the C-MOS type.
C-MOS
DS12887
DS12887A
3. Turn the power switch on with JP1 shorted.
4. Wait for 5 seconds and turn the power switch off.
5. C-MOS reset operation is performed.
6. To conform the reset opeartion, turn the power switch on. Then, the machine is beep and
appears "CMOS ERROR" on the LCD display.
In case this message is not appears, execute 1 to 5 again.
7. Then, Execute "BIOS setup" opearation.

7-3. Memory change

It is necessary to clear the error message when change the memory size.
1. After change the memory size, " MOMORY SIZE ERROR" appears on the screen.
2. To clear the error message, simply goto "BIOS setup", and select "SAVE AND EXIT".
3. Then, memory size is stored in the C-MOS.
Short terminal
Pin No.1 and 2
Pin No.2 and 3
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