Brother PR655 Service Manual page 281

Failure Investigation for Electronic Parts
<From previous page>
If upgrading stops, check the percent complete shown on the screen to take appropriate
measure according to the estimated error cause shown in the table below.
Percent complete
Update error in display data or panel
Less than 90/100
PCB assy failure
Update error in Panel program or panel
91/100 to 92/100
PCB assy failure
Update error in upgrade program or
93/100 related display data, or panel PCB assy
failure
Update error in display data or panel
More than 94/100
PCB assy failure
* Replace with the latest upgrade program downloaded from the website.
*Note
• If the upgrading is failed after these performing procedures, the upgrade program itself may be broken.
Delete the Temporary Internet Files (or cache) from the browser of your computer, and download the
latest upgrade program from the website again.
* If the broken upgrade program is left in the Temporary Internet Files (or cache), downloading upgrade
program will be failed.
How to delete Temporary Internet Files (or cache) - for Internet Explorer 8
1. Click [Tools], and then [Internet Options].
2. Double-click the [General] tab and click the [Delete] button for [Browsing History].
3. Select only the [Temporary Internet Files] and click the [Delete] button.
* It may take a while to delete the temporary files.
Please check yourself for how to clear cache as it varies depending on your browser.
Cannot upgrade software
Cause
Replace the upgrade program* or panel
PCB assy.
Replace the upgrade program* or panel
PCB assy.
Replace the upgrade program* or panel
PCB assy.
Replace the panel PCB assy.
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Remedy