SHARP ERA470
Service Manual

CHAPTER 3. ROM REPLACEMENT
Before trying to replace the ROM in the machine now available on the market, be sure to back up the data.
[STANDARD ECR] [IN-LINE SYSTEM ECR]

START

START

1. Output a check report with the ECR in In-line setting. (PGM#3610)

1. Using an ER-01FD/02FD, save the current data on the RAM to floppy disk. (SRV#996)

2. Using an ER01-FD/02FD, save the data on the RAM to a floppy disk. (SRV#996)

2. Replace the old ROM with a new ROM for EURO.

3. Replace the old ROM with a new ROM for EURO.

4. Perform Master reset.

3. Perform Master reset. 5. Using an ER01FD/02FD, load the data to ECR.
(SRV#998)

4. Using an EF01FD/02FD, load the data to ECR. (SRV#998) 7. Perform Program (service) reset.

5. Perform Program (service) reset.

8. Program the ECR for EURO applications.

*6. Delete the existing SSP data.
992 TL

9. Refer to the PGM#3610: In-line setting check report. Start the In-line mode using In-line set up job. (SRV#895)

7. Perform Program (service) reset.

10. Program the ECR for EURO applications

8. Program the ECR for EURO applications.

11. Perform Download in the In-line mode. (PGM#4300) (PGM#4600)

END

END

* The SSP data for an old version ROM is included in the new version ROM.

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