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| [[File:discioerror2.jpg|thumb]] | | See [[system self-test]]. |
| [[File:error_cram.jpg|thumb]]
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| [[File:error_calendar.jpg|thumb]]
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| [[File:error_vram.jpg|thumb]]
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| [[File:error_z80.jpg|thumb]]
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| ==DISC I/O ERROR ID = 0000==
| | *"WARNING BANK ERROR": [[Cartridge self-checking]]. Cartridge edge dirty, bad 74LS74 for [[bankswitching]]. |
| | | *"WARNING COPYRIGHT MESSAGE": [[Slot check security]]. Clear backup RAM. Bad [[uPD4990]]. Bad [[system ROM]]. |
| Normally happens right before a loading screen. This error is thrown when a file requested for loading isn't found in the CD table of contents (should never happen on an original CD, except if the TOC zone is physically damaged).
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| If the CD is an original one, it's certainly dirty or scratched.
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| If the CD is a copy, it's certainly re-authored (not an exact copy of an original). Even if the files are the same, the CD image structure can be altered and detected.
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| This is the case for games using file versions in their ISO 9660 structure, like [[Metal Slug 2]]. Most Windows ISO image editors strip the versioning info which is needed by the game to identify the files. Use [[mkisofs]] '''WITHOUT THE -N FLAG'''or edit the loading tables in the main PRG file.
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| ==MVS==
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| *"WARNING BANK ERROR": [[Cartridge_self-checking]]. Cartridge dirty, bad 74LS74 for [[bankswitching]]. | |
| *"WARNING COPYRIGHT MESSAGE": [[Slot_check_security]]. Clear backup RAM. Bad [[uPD4990]]. Bad [[BIOS]] ROM. | |
| *"Z80 ERROR": [[Z80 ERROR]]
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| See [[BIOS Self-tests]].
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| [[Category:Repairs]] | | [[Category:Repairs]] |
Latest revision as of 04:44, 12 October 2016