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Casio TK-7500 トラブルシューティングマニュアル

[In case of using the Memory Cassette RAC-9]

START
Turn off the power switch and set the Mode switch to PGM position.
While pressing the reset switch and <JOURNAL FEED> button, turn the power switch on.
Release the reset switch first and then release the <JOURNAL FEED> button.
Then, the machine shows following code on the display.
( If it is no display, please refer the section 2-2 of page 4 for repair.)
Display "EEEEEEEEEE" means the non application in Flash ROM.
If the display "EEEEEEEEEE", please retry from START.
Display "0000000000" means waiting the IPL start command.
Input code "44449999" and press <SUB TOTAL> button.
Display "IPL 0000". This is waiting a IPL data from a P/C or a Memory Cassette.
Set the Memory Cassette RAC-9 that has IPL data to the ECR.
Input code "20" and press <SUB TOTAL> button.
Display is changing from "2 IPL4 XXX" to "2 IPL XXX".
(XXX number will be counted down.)
If the number does not count down, please check the connection of the Memory Cassette.
When the ECR beeps 3 times and the display is changed to "0000000000", the IPL loading is
finished.
END

[Error code for IPL loading]

Display
1
I P L 1
On line error
01: LRC check error
02: Time out error (over time between 12: Time out error (over time between 22: IPL time limit = 0
Packet 180sec, Data 5sec)
03: Receive data format error
Sequence counter error
08: Code flash erase/write error
Memory Cassette RAC-9
E 0 3
Error code
In line error
11: LRC check error
Packet 180sec, Data 5sec)
13: Receive data format error
Sequence counter error
14: ARCNET open error
18: Code flash erase/write error
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Trouble shooting ECR V1.01
ECR side
Flash Pack IPL error
21: Write protect switch ON error
23: No IPL data
24: Format error
26: Load memory size over error
28: Flash erase/write error