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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 troubleshooting page. 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.
Before you begin, turn off the device. Additionally, give it time to cool off if you have used it recently.
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Flip the projector so that the bottom is facing up.
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Remove the eight 10.0 mm screws with a Phillips #0 screwdriver.
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Remove the two 20.0 mm screws with a Phillips #0 screwdriver.
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Flip the projector so it is upright.
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Remove the top case of the projector.
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Remove the three pieces of tape securing cables.
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Use a Phillips #0 screwdriver to remove the four 15.0 mm screws from the motherboard.
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Squeeze the tab against the connector, and pull the connector straight out from the socket.
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Lift the motherboard from the device.
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Use the tip of a spudger or your fingernail to flip up the small locking flap of the ZIF connector.
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Pull the cable from the connector.
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To reassemble your device, follow these instructions in reverse order.
To reassemble your device, follow these instructions in reverse order.
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UMass Dartmouth, Team 1-5, Petersen Fall 2023 crwdns2935289:0UMass Dartmouth, Team 1-5, Petersen Fall 2023crwdne2935289:0
UMASSD-PETERSEN-F23S1G5
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Baron, thanks for the guide. My projector took a tumble and landed right on the back where the input/power plug is. I plugged it back in and the red light turns on, but that's all. I don't hear any loose parts and it definitely wasn't overheated. Any ideas on what it could be? Trying to get the right screwdriver to open it up later this week.
