Dr. J HI-04 User manual

Dr. J HI-04
Mini Home Projector
Anastasiya Dvuzhylov
Quick Start & Troubleshooting Guide

Caution: Hot air is exhausted from the ventilation
openings, do not put anything flammable near the
projector. To prevent fire, do not cover ventilation
openings, make sure that the projector is in a well
ventilated area. Avoid confined spaces.
Caution: To prevent shock, do not open the
projector unit body. There are no user servicable
parts inside.
Warning: To prevent fire or shock, do not expose
the projector to rain or water. If using outdoors,
store in a dry area and do not leave unattended
for prolonged periods of time.
Air Circulation - There are openings on the unit for venti-
lation. To avoid the risk of overheating do not block or co-
ver them.
Do NOT look into the projector lense when the
projector is on. The bright light may cause eye damage.
Please contact [e-mail] for support.
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Important Information

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Table of Contents
1. Introduction
1.1 Product Overview
1.2 Feature Overview
1.3 Projection Settings
2. Installation
2.1 Mounting
2.2 Non-Mounted Set up
2.3 Connecting to Power
3. Connecting to Devices
3.1 Connecting to Computers
3.2 Connecting to Phones/Tablets
3.3 Connecting to Gaming Consoles
3.4 Connecting to USBs
3.5 Connecting to Other
4. Image Output Adjustment
4.1 Focus
4.2 Keystone
5.0 Menu
5.1 Image Adjustment
5.2 Sound Adjustment
6.0 Troubleshooting
6.1 Colour Looks Off
6.2 Blurry/Bad Picture Quality
6.3 Words Appear Fuzzy
6.4 No/Low Sound
6.5 Noisy Fan
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The Dr. J HI-04 Mini Home Projector is a portable projec-
tor intended for home use. It can be connected to phones,
computers, gaming systems, and other devices, to project
an image. This projector is a budget model, it is not inten-
ded to be used in a professional setting. This projector is
best suited for movies and videos, it is not recommended
for:
• Professional settings and screenings, the projec-
tion size is limited;
• PowerPoint, Word, or Excel presentations, the
content will be too difficult to read;
• Viewing in bright settings, ensure to project
content in a dark area.
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1. Introduction

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1. Input
2. Menu
3. Navigation/OK
4. Return
5. Power
6. Focus
7. Keystone
8. Power adaptor
9. 3.5 mm jack
10. AV jack
11. SD port
12. HDMI port
13. USB port
14. VGA port
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1.1 Product Overview

1.2 Feature Overview
The Dr. J HI-04 Mini Home Projector is a portable projector
intended for home use. It can be used for streaming sports
games indoors or having movie nights outside. The projec-
tor features a 1280x720 resolution for crisp images.
The Dr. J HI-04 Mini Home Projector can be connected
with:
• Phones or tablets • Gaming Consoles
• Computers • Amazon Firesticks
• DVD players • USBs
The projection size can vary from 32 – 170 inches.
The projector has a +/- 15 degree keystone adjustment
function.
It boasts 50,000 hours of lamp life.
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1.3 Projection Settings
The Dr. J HI-04 Mini Home Projector has 4 projection set-
tings, based on how the projector is positioned. The 4 set-
tings are:
• Front • Front ceiling
• Rear • Rear ceiling
1.2.1 Front Projection
Front projection is the factory default setting. It allows
users to project from a table/shelf in front of the screen,
like a traditional projector.
1.2.2 Rear Projection
Rear projection is when the projector is placed behind a
translucent screen and projects an image that appears mi-
rrored.
To correct the mirrored image, select Menu > Set-
tings > Picture > Projection Mode - FLIP.
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1.2.3 Front Ceiling Projection
Front ceiling projection is intended for users who mount
their projectors to the ceiling, in front of a screen. Because
the projector is intended to be mounted upside-down, the
image output will also appear upside-down.
To correct the upside-down image, select Menu >
Settings > Picture > Projection mode and select
“front”.
1.2.4 Rear Ceiling Projection
Front ceiling projection is intended for users who mount
their projectors to the ceiling, behind a translucent screen.
Because the projector is intended to be mounted upsi-
de-down, the image output will also appear upside-down,
as well as mirrored because it is being projected from be-
hind.
To correct the upside-down image, select Menu >
Settings > Picture > Projection mode and select
“front” and “flip”.
1.3 Projection Settings
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2. Installation
2.1 Mounting
Mounting the projector to the ceiling or a tripod is optional
and requires a mount that is not included. If Front Ceiling
Mounting or Rear Ceiling Mounting, please see sections
1.2.3 and 1.2.4 to optimize image projection for moun-
ting.
2.2 Non-mounted set up
The projector should be set up on a flat, stable surface,
pointing straight on, directly at the screen or wall.
2.3 Connecting to power
Connect the two-pronged AC side of the power cable to the
plug on the right side of the projector and plug the other
side of the cable into a wall socket.
The light above the power button should glow red once the
cable is plugged in.
Two Prong Cable
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The Dr. J HI-04 Mini Home Projector can be connected to
using several different cables, such as HDMI, USB, and
VGA.
Note: VGA cables do not support audio. If connecting with a VGA
cable, use a 3.5mm audio cable to connect device audio with the
projector.
3.1 Connecting to Computers
There are two ways to connect the Dr. J HI-04 Mini Home
Projector to a laptop or desktop computer (both Windows
or Mac).
3.1.1 Using an HDMI cable
To connect to a computer using an HDMI cable, plug in an
HDMI cable into the computer’s HDMI port.
If the computer does not have an HDMI port, an adaptor
can be purchased and used.
Connect the other side of the HDMI to the HDMI port loca-
ted on the left side of the projector.
Select the Input Source Button > HDMI
3. Connecting to Devices
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3.2 Connecting to phone/tablet
To connect a phone or a tablet, use an HDMI to lightning
cable/USB C adaptor (not included).
Connect the HDMI cable to the adaptor port.
Connect the other side of the HDMI to the HDMI port loca-
ted on the left side of the projector.
Select the Input Source Button > HDMI
3.3 Connecting to gaming console consoles
To connect to a gaming console, plug in an HDMI cable
into the computer’s HDMI port.
Connect the other side of the HDMI to the HDMI port loca-
ted on the left side of the projector.
Select the Input Source Button > HDMI
Note: If connecting to an Xbox, go into Xbox Settings>-
Digital Audio Output and select PCM.
3. Connecting to Devices
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3.4 Connecting to USB/Memory Card
Connect the USB/Memory to the projector’s USB port or if
using a memory card, connect an adaptor to the USB port.
Select the desired folder/content for viewing.
Select the Input Source Button > DMP
3.5 Connecting to Other Devices
Find the appropriate connection method based on what
ports the device has:
• HDMI (or adaptor)
• VGA
• USB (or adaptor)
Select the appropriate source based on the cable being
used and connection method:
• HDMI – HDMI
• VGA – VGA
• USB – DMP
If unable to connect a desired device, please contact
[e-mail] for support.
3. Connecting to Devices
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4. Image Output Adjustment
4.1 Focus
The Focus adjustment wheel can be turned left and right to
sharpen or blur the image, depending on the distance of
the projector from the screen or wall.
Turn the wheel left or right until the image reaches the desi-
red sharpness.
4.2 Keystone
The Keystone adjustment wheel can be turned left and right
to adjust the shape of the projected image. It should only
be used if an image is not being projected from straight on
and appears distorted.
The Keystone adjustment fixes skewed image output, ma-
king it rectangular.
NOTE: The Dr. J HI-04 Mini Home Projector only has a
keystone adjustment of +/- 15 degrees, it can only fix sli-
ghtly skewed image outputs.
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5.1 Image adjustments
The projection output settings can be accessed by selecting
Menu>Picture>Picture Mode
There are 3 pre-set picture modes:
• Vivid – image output has rich, high contrast colours
• Medium – image output has regular toned colours
• Soft – image output has duller, lower contrast colours
These pre-sets are non-customizable, their contrast, bright-
ness, colour, and sharpness cannot be adjusted.
And 1 custom picture mode:
• User – image output can be customized.
5.1.1 Custom image adjustments
To adjust contrast, brightness, colour, and sharpness, select
Menu>Picture> Picture mode> User.
Adjustments can be made using sliders, to increase or de-
crease contrast, brightness, colour, and sharpness.
5. Menu
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5. Menu
5.2 Sound Adjustments
The sound settings can be accessed by selecting Menu>
Sound>Sound Mode
There are 4 pre-set sound modes, based on the best use
case scenario:
• Medium – default setting
• Movie – optimized for movies and TV shows
• Music – optimized for music rich content like concerts
• Sports – optimized for projecting sporting events
These pre-sets are non-customizable, their treble and bass
cannot be adjusted.
And 1 custom sound mode:
• User – treble and bass can be adjusted
5.2.1 Custom Sound adjustments
To adjust the treble and bass, select Menu>Sound>
Sound mode> User.
Adjustments can be made using sliders, to increase or de-
crease treble and bass.
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6.1 Colour looks off
If the image output colour looks off, i.e. the reds look pink,
select Settings > Picture > Picture mode – User
Adjust brightness, contrast, colour, and saturation as nee-
ded
6.2 Blurry/Bad Picture Quality
If the picture looks blurry or fuzzy, adjust the focus to in-
crease sharpness.
If the picture looks washed out/too dark, select Settings >
Picture > Picture mode – User
Adjust brightness, contrast, colour, and saturation as nee-
ded.
6.3 Words Appear Fuzzy
Please note that this projector was not intended for use in
a professional setting, the output quality is not high enough
to be able to present PowerPoints or other documents.
Subtitles should not be a problem to read. To increase the
clarity of words, adjust the focus to increase sharpness.
6. Troubleshooting
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6. Troubleshooting
6.4 No or low sound
If connecting with a VGA cable, use a 3.5mm headphone
line to connect device audio with the projector.
If using HDMI, USB, or other means of connection, please
contact [e-mail] for support.
We will send you an update to upload to the projector to
restore sound for both internal and external speakers.
6.5 Projector fan is too noisy
The projector fan should not be louder than the audio
output. However, noise from the fan is inevitable as it
keeps the projector from overheating.
Please see section 6.4 if the fan drowns out the audio ou-
tput.
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