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MZ-N420D
Rewriting the Patch Data at Replacement of MAIN Board
This set requires the patch data in the nonvolatile memory (IC852) to be rewritten using the application, when the MAIN board was
replaced.
Caution: The application that meets the microcomputer version in this set must be used when rewriting the patch data. Rewriting the
patch data using the application not suitable for the microcomputer version could cause the set to malfunction.
For a checking method of the microcomputer version, see “SECTION 4 TEST MODE” (page 13).
• Preparation
1. USB cable (attached to the set)
2. Personal computer in which the Net MD Driver has been installed. (For further information, see “System requirements” (page 4) in
“SECTION 1 SERVICING NOTES”)
3. Application “USB_PatchWriter” for patch data rewriting
• How to Get the Application “USB_PatchWriter” for Patch Data Rewriting
Contact our service technical support section for PA products to get the application.
• Pre-check
1. Check the microcomputer version in this set. (For a checking method of the microcomputer version, see “SECTION 4 TEST MODE”
(page 13).)
2. Check that the Net MD Driver has been installed in the personal computer.
3. Make sure that the set is in the Normal mode.
Note:
Do not rewrite the patch data in the Test mode.
• Rewriting the Patch Data
1. Connect the set to the personal computer with the USB cable.
2. Start the application “USB_PatchWriter”.
3. Make sure that the following window opens.
4. Click the [USB CONNECT] button.
