Casio A-10 Operation, Service Manual & Parts List page 45

Step
Operation
PCMCIA
ENTER, 7
Insert RAM card into card
slot.
3
Remove RAM card.
Memory ENTER, ENTER, 3, 2
3
ENTER, 5
ENTER, 4
ENTER, ENTER, 7
Switches
Display
** Others **
1 Switch
2 PCMCIA (implement)
3 PCMCIA (card)
4 PCMCIA (WAIT)
5 Keyboard RANDOM
6 Keyboard SERIAL 1
7 Keyboard SERIAL 2
8 EL
** Test data "0xAAAA"
** Test data "0x5555"
** Test data "address"
PC Card -----> OK
** RAM TEST **
*** Write address to RAM
a few sec.
** Memory **
1 RAM TEST
2 RAM WRITE
3 RAM READ
4 ROM CHECK SUM
5 ROM BUS CHECK
** Memory **
1 RAM TEST
2 RAM WRITE
3 RAM READ
4 ROM CHECK SUM
5 ROM BUS CHECK
*** Read and Compare
RAM READ CHECK ------>
** ROM BUS CHECK SUM **
SUM 1 (HIGH) = 9FE
SUM 2 (LOW) = 128E
** ROM CHECK SUM **
base addr. sum value
SUM 1 (A0000000) = 817F
SUM 2 (A0200000) = 3C33
** Others **
1 Switch
2 PCMCIA (implement)
3 PCMCIA (card)
4 PCMCIA (WAIT)
5 Keyboard RANDOM
6 Keyboard SERIAL 1
7 Keyboard SERIAL 2
8 EL
— 42 —
Note
Make sure the display
shows OK.
This mode writes data to
all bits of RAM.
This mode reads data
which is written by step 2
(RAM WRITE) and com-
pares the data read with
data written.
Make sure the display
shows OK.
OK
This mode displays the
check sum value for 1-
bit(high) and 1-bit(Low) of
ROM.
This mode displays the
check sum value. It takes
12 sec..