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Introduction

Use this tutorial to replace a faulty fan in your DR.J Professional HI-04 mini projector.

A fan is what keeps the device from overheating. A broken fan can cause the device to overheat, or to not turn on at all.

Before using this guide, be sure to review the troubleshooting page. Sometimes issues with overheating can be caused by overuse, so restart the device and see if the issue persists.

Before you begin, turn off the device. Make sure the device is cool especially if it has been used recently to avoid burns.

What you need

Step 1 Fan

DR.J Professional HI-04 Fan Replacement, Fan: step 1, image 1 of 3

DR.J Professional HI-04 Fan Replacement, Fan: step 1, image 2 of 3

DR.J Professional HI-04 Fan Replacement, Fan: step 1, image 3 of 3

Flip the projector so that the bottom is facing up.
Remove the eight 10.0 mm screws with a Phillips #0 screwdriver.
The screws are set deep in the holes. Be careful not to drop the screws.
Remove the two 20.0 mm screws with a Phillips #0 screwdriver.

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Step 2

DR.J Professional HI-04 Fan Replacement: step 2, image 3 of 3

Flip the projector so it is upright.
Remove the top case of the projector.
The top case should come off fairly easily but be gentle while removing it.
Don't yank the top case off as there are cables attached to the motherboard and the top case.

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Step 3

Remove the three pieces of tape securing cables.
Keep the tape for reassembly.

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Step 4

Use a Phillips #0 screwdriver to remove the four 15.0 mm screws from the motherboard.
Be sure to not drop the screws in the device as they can be difficult to recover.

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Step 5

Squeeze the tab against the connector, and pull the connector straight from the socket to disconnect the power cable from the port.
The cable should come out easily so do not pull too hard.

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Step 6

Use a Phillips #0 screwdriver to remove the three 15.0 mm screws from the black cover.
The screws are set deep in the holes, so be careful to not drop the screws, as they can be difficult to recover.