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Introduction |
| Use this guide to replace the motherboard in a DR.J Professional HI-04 if the device is will not power on or is giving a motherboard error code. This guide can also be used to replace the I/O board as it is directly attached to the motherboard. | | | The motherboard is what allows the device to run at its expected performance. A broken or faulty motherboard can be the result of the device not powering on and working. This can be caused by a loose connection or broken motherboard. | | | Before using this guide, be sure to review the [[DR.J Professional HI-04 Troubleshooting|troubleshooting page|new_window=true]]. Sometimes the device may not power on due to it not getting enough power. But if the motherboard is broken it will need to be replaced. |
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