Casio CE-300 Service Manual page 16

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3. Individual function test
3-1. Series test
"Y" "X" "1" + "#2" key
Execute the following test in order.
1. Display test
2. Check sum test of EP-ROM
3. RAM test
4. Drawer open test
5. Printing test
6. Date and Time test
1. Display test (All segment light on)
2. Ckeck sum test of EP-ROM
3. RAM test (Read/Write test)
Normal end receipt
Error end receipt
4. Drawer open test
5. Printing test
6. Date and Time test
Then, issues a receipt and display the following character.
Y: 0: Normal test
1: Execute next test even if an error happend at ROM check sum
X: 0: Autockecking of RAM capacity
1: 256 Kbit RAM test
2: 1 Mbit RAM test
Normal end
ROM SUM OK
XX00: Check sum value
256 Kbit RAM
RAM 32K R/W
RAM 32K E R
BBBBBBBBBBBBBBBBBBBBBBBB
Set the date and time as follows.
Date : 31 / 12 / 96
1 2. 3 4 5. 6 7 8. 9 0
Digitized in Heiloo, Holland.
Error end
ROM E R
XXXX : Check sum value
1 Mbit RAM
OK RAM 128K
YY: Bank
XXXX: Address
Time : 25:59
— 14 —
R/W OK
3/22/15