Casio Cassiopeia E-125 Service Manual And Parts List page 51

4. Tapping 4 RAM TEST, the following display appears.
The other displays may appear.
** RAM CHECK **
- RAM CHK OK -
Pressing Action Control button, Memory Check Menu display appears again.
5. Tapping 6 RAM R/W TEST, the following display appears.
** RAM CHECK **
- RAM DATA WRITE -
Write ... end ActionKey PUSH!
6. Pressing Action Control button according to above message, the following display appears.
** RAM CHECK **
- RAM DATA WRITE -
Write ... end ActionKey PUSH!
-- RAM DATA READ --
-- RAM CHK OK --
Pressing Action Control button twice, Main Menu display appears again.
8-4-2-4. Serial ports Check (Communication Check)
Try to communicate with PC using ActiveSync 3.1 after connecting the unit to PC using the cradle
concerning USB and RS232C checks.
Because, special jigs are needed to perform USB checks by this diagnostic program.
1. Tapping 4 SERIAL, the following Serial port Check Menu display appears.
** Serial **
1 Loop Back
2 Send / Receive <RS232C Ck>
3 Interactive
4 Send / Receive <IrDA Ck>
5 Loop Back2
6 USB Check
2. Prepare another unit to perform IrDA communication check.
Display Serial port Check Menu with another unit as well as the checking unit.
3. Tapping 4 Send / Receive <IrDA Ck> with both units, the following displays appear.
4. Tap 2 Receive data (MAX Baudrate) with another unit, then tap 1 Send data (MAX Baudrate)
with the checking unit. Doing so, the following displays appear.
In case of the checking unit;
<Send mode>
In case of another unit;
<Receive mode>
HHHHHHHHHHHHHHHHHH
HHHHHHHHHH....................
The letter "H" will continue to appear one after another.
5. To stop this data communication, press Action Control buttons with both units.
6. Exchanging the checking unit for another unit, perform operations of above 3~5.
Press Action Control buttons few times with both units to display Main Menu.
Turn off another unit power after performing FULL RESET.
<RS232C Ck>
<IrDA Ck>
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