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DBPower T20 Troubleshooting

Released November 2016, identified by model number T20.

Lamp is Not Functioning ¶ 

The bulb on the device does not turn on or show signs of projection.

No light coming out ¶ 

If there is no image appearing once the projector is on, first make sure the lens cap is removed. Once the lens cap is removed proceed to make sure the proper source is being displayed through the projector. To select the source, press the source button on the remote (depicted as a rectangle with an arrow pointing into it) or the projector (the button labeled “S”) to bring up the source menu and by using the directional buttons surrounding the “OK” button select the desired source such as “USB” or “HDMI”. If none of these fixes solve the problem, the bulb may be burnt out, and will require replacement. See the lamp replacement guide.

Lamp shattered ¶ 

If the projector is overheating or the device is dropped, the bulb may shatter. Remove the casing and clear out the debris. Replace the light bulb.

Unclear Image ¶ 

Lamp is on but projection is not clear, hard to read, and/or has an undesired orientation.

Unadjusted focus wheel ¶ 

Turn the biggest wheel on the top of the device, this is intended to adjust the sharpness of the image. The keystone wheel is next to the focus wheel and affects the angle at which the image is projected, this may also need to be adjusted.

Projector position ¶ 

The projector is most likely positioned too close or too far from the screen. Adjust the distance between the projector and the screen. The ideal operating distance is between 1 m (3.28 ft) and 5 m (16.4 ft). Be aware that changing the distance will require the user to refocus the lens, refer to “Unadjusted Focus Wheel” section in “Blurry Image”.

Image is upside down ¶ 

A setting has been changed that affects the projectors orientation. To select the desired orientation for the projector, use the “M” button (menu button) to bring up the picture options. Scroll down using the directional buttons surrounding the “OK” button, and select “Projection Mode” and keep pressing the “OK” button until the desired orientation is shown.

Smudges ¶ 

If the image is not clear due to smudges and spots appearing on the projection screen, then it may be due to the lens being dirty. By taking a microfiber cloth, gently wipe the lens to remove any spots. Always put the lens cover on the projector when not in use.

Will Not Connect ¶ 

Signal is not being received by the device, cannot change the screen

Remote isn’t working ¶ 

Make sure that the remote has batteries, and that these batteries aren’t dead. Remove the battery cover and (re)install charged batteries oriented according to the depiction in the battery compartment.

Wireless connection is not established ¶ 

This projector is not equipped with any sort of wireless connectivity (Bluetooth, WiFi, NFC, etc.). All connections to and from the projector must be made using the input/output ports on the device.

Weak input (Audio Out, AV In, USB, Charger, SD Card, HDMI, VGA) ¶ 

If the screen is flickering or the audio is breaking up, make sure to see if all the cables are securely connected between the projector and the source such as a computer. If the connections are secure make sure that cables are not cut or frayed indicating a weak connection. If any of the cables are damaged, simply replace the cable and initiate the connection again.

Screen is frozen ¶ 

If the screen appears to be frozen, turn the device off for at least 30 seconds, and then power it back on.

Unclear Audio ¶ 

Sound is distorted or there is no sound coming out at all

Volume ¶ 

If the projector has no sound, first make sure that the volume is turned up. If the volume is high, then proceed to check the source options on the projector.

Location of cables ¶ 

Make sure that there are no cables plugged in the headphone jack on the side of the projector and that there are secure connections between the desired source and the projector.

If the screen is flickering or the audio is breaking up, make sure to see if all the cables are securely connected between the projector and the source such as a computer. If the connections are secure make sure that cables are not cut or frayed indicating a weak connection. If any of the cables are damaged, simply replace the cable and initiate the connection again.

Device is Overheating ¶ 

Device suddenly shuts down or otherwise stops working

Blockage in vents or fan ¶ 

Ensure that the fan and vents are not covered. Clean out the fan and vents with a compressed air duster to blow away dust and other debris.

Lamp shattered ¶ 

Check lamp to make sure it is not damaged as overheating can cause it to break. If damaged refer to the lamp replacement guide.

3 Comments

while projection on screen a black dot gradually developed and occupied the screen. Pl let me know the problem

SARIPALLI RAO - Reply

Was doing my own cleaning of the lenses by opening up the case and after putting everything back together the colors on the screen became inverted. Any insight would be helpful.

Colton Dennis - Reply

The links to the lamp replacement guide are going to here

PowerBook G3 Wallstreet Keyboard Replacement

Tim Hawkins - Reply

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