FAQ and troubleshooting

Running 573in1

Make sure the disc image has been burned correctly (and not by e.g. dragging the image file onto the disc). The disc should appear as 573IN1_xxxxx and contain a bunch of files named README.TXT, PSX.EXE and so on.
Try using a different disc and/or another CD-ROM drive. A list of drives known to be compatible with the stock System 573 BIOS can be found here.
Ensure the BIOS is not reporting an actual hardware error with the 573. A CD-ROM error will result in CDR BAD being displayed, while other errors will be reported under the PCB location of the chip that failed (e.g. 18E BAD for a JVS MCU error). A list of BIOS errors can be found here.

You have booted into the game currently installed on the 573's internal flash rather than from the disc. Turn off DIP switch 4 (the rightmost one) and power cycle the 573.

Make sure the cartridge's contacts are clean and the security cartridge connector on the 573 has no bent pins and is not worn out, corroded or otherwise damaged.

The 573 motherboard has pin 20 populated on the IDE connector, but most cables use it as a keying pin (as per later versions of the IDE specification) and thus have it blocked off. You may either try to find another cable or drill a small hole in the cable's connector.
You can also cut or desolder pin 20 on the 573, however this is not recommended.

Try using a different drive or adapter. Some CF cards, SD card adapters and IDE-to-SATA converters are known to be problematic.

Ensure the drive supports LBA addressing. All CF cards, SD card adapters and the vast majority of hard drives do, however older hard drives (typically ones with a capacity lower than 8 GB or manufactured before the mid 1990s) may only support CHS addressing.
Ensure the drive is formatted with a single FAT12, FAT16, FAT32 or exFAT partition. Other filesystems such as NTFS or ext4 are not supported.

You may press the test button on your 573 or cabinet at any time to toggle the log window, which will contain detailed information about errors.
If an IDE hard drive is connected you can also take screenshots by holding down the test button. Screenshots are saved to the 573in1 directory in the root of the filesystem.