https://wiki.neogeodev.org/index.php?title=CALENDAR_ERROR&feed=atom&action=history
CALENDAR ERROR - Revision history
2024-03-29T05:59:30Z
Revision history for this page on the wiki
MediaWiki 1.40.0
https://wiki.neogeodev.org/index.php?title=CALENDAR_ERROR&diff=6010&oldid=prev
Rom1 at 12:27, 29 April 2018
2018-04-29T12:27:18Z
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td>
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 12:27, 29 April 2018</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l11">Line 11:</td>
<td colspan="2" class="diff-lineno">Line 11:</td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* Check 32768Hz crystal</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* Check 32768Hz crystal</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* Check {{Chipname|uPD4990}} traces, especially pin 11 ({{Sig|TP|TP}}) and pins 5, 6 and 7.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* Check {{Chipname|uPD4990}} traces, especially pin 11 ({{Sig|TP|TP}}) and pins 5, 6 and 7.</div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>* .<del style="font-weight: bold; text-decoration: none;">..</del></div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>* <ins style="font-weight: bold; text-decoration: none;">Check {{Chipname|74HC32}} and traces to {{Chipname|uPD4990}}</ins></div></td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">* Try to reset Backup RAM content:</ins></div></td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">** Either remove battery</ins></div></td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">** Or flip all dip switches to on and then power on the board</ins>. <ins style="font-weight: bold; text-decoration: none;">Then turn off the board and return all dips to normal settings</ins></div></td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">* You can use unibios to skip this error</ins></div></td></tr>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Category:Repairs]]</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Category:Repairs]]</div></td></tr>
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Rom1
https://wiki.neogeodev.org/index.php?title=CALENDAR_ERROR&diff=5183&oldid=prev
Furrtek: Created page with "thumb ==Cause== The RTC's time pulse is too slow or too fast. It should be no less than 57 frames (0.963s), and no more than 64 (1.081s). Ca..."
2016-10-12T04:34:30Z
<p>Created page with "<a href="/index.php?title=File:Error_calendar.png" title="File:Error calendar.png">thumb</a> ==Cause== The <a href="/index.php?title=RTC" class="mw-redirect" title="RTC">RTC</a>'s time pulse is too slow or too fast. It should be no less than 57 frames (0.963s), and no more than 64 (1.081s). Ca..."</p>
<p><b>New page</b></p><div>[[File:error_calendar.png|thumb]]<br />
<br />
==Cause==<br />
<br />
The [[RTC]]'s time pulse is too slow or too fast. It should be no less than 57 frames (0.963s), and no more than 64 (1.081s).<br />
<br />
Can happen if traces are cut.<br />
<br />
==Suggestions==<br />
<br />
* Check 32768Hz crystal<br />
* Check {{Chipname|uPD4990}} traces, especially pin 11 ({{Sig|TP|TP}}) and pins 5, 6 and 7.<br />
* ...<br />
<br />
[[Category:Repairs]]</div>
Furrtek