Package Contents

Portable Display
Power Adapter
USB Type C Cable
USB Type C to Type A Cable
Mini HDMI to HDMI Cable
Protective Cover
Quick Start Guide

Note: The power adapter and video cables included in your package may vary depending on your country. Please contact your local reseller for more information.

Front and Left Side View / Rear and Right Side View


Front and Left Side View	Rear and Right Side View

Note: For more information about the Joy Key and its functions, refer to Hot Keys.

I/O Ports

Number	Item
1	USB Type C
2	Mini HDMI
3	Audio Out

Installing the Cover

Using the Stand

Note: Always place the device on a flat, stable surface. Failure to do so may cause the device to fall and damage the device and/or result in personal injury.

Connecting to Power

The monitor can be powered in any of the following configurations:

USB Type C
USB Type A
Power Adapter

Note: For more information, please see Power Delivery

Connecting to External Devices

Your external device(s) can be connected in any of the following configurations:

USB Type C Connection
Connect a USB Type C cable from your external device to a Type C port on the monitor.
Mini HDMI Connection
1. Connect an HDMI cable from your external device to the mini HDMI port on the monitor.
2. Connect the USB Type A to USB Type C cable from your external device to the monitor.
Audio Connection
Plug the audio jack of an audio device into the Audio Out port of the monitor.

Power Delivery

Powering a Laptop or Mobile Phone

If the included power adapter is connected to the monitor, then the monitor can charge a connected laptop or mobile phone.

Note: Power Delivery Output: DC 5V/9V/12V/15V/20V/Max 3A.

Power Supply Detection

This product will detect if the power supply device is an adapter, laptop or mobile phone.

If the power source is an adapter or laptop, the default brightness value will be 100.
If the power source is a mobile phone, the default brightness value will be 15.
When using a mobile phone to power the monitor, the default brightness level will be 15.

Note: Due to the limited power output of the mobile phone, do not adjust the brightness level higher as this may cause the display to flash or shut down.

Power Delivery - Further Information

Due to the VX1655-4K's design please note:

The first connected device will be the main input signal.
When a Type C port recognizes an external device as a power adapter, it will only distribute the power. It will NOT display the input signal.
Only when one of the Type C ports is recognized as a power adapter can the other one deliver two-way power.

If a laptop is connected first to the VX1655-4K, then a mobile phone is connected second, the mobile phone’s battery will not be charged as neither Type C port recognizes the connection as being connected to a power adapter.

Note: If you want to display the mobile phone’s screen, you must unplug the Type C cable connected to the laptop.

If a mobile phone is connected first to the VX1655-4K, then a laptop is connected second, the mobile phone’s battery will be charged as one of the Type C ports is recognized as being connected to a power adapter.

Note: If you want to display the laptop screen, you must unplug the Type C cable connected to the mobile phone.

Due to the VX1655-4K’s design, do not connect two laptops or one laptop and a desktop computer at the same time. This can cause power distribution conflicts, resulting in flashing screens or the forced shutdown of the laptop(s).

Note:

If the laptop has a Type C port, please connect via Type C to the VX1655-4K.
Do not connect the other Type C port of the VX1655-4K to another laptop or desktop computer via Type A and HDMI at the same time.
If the laptop only has HDMI and Type A ports, please connect via HDMI and Type A to Type C to the VX1655-4K.
If the power output of the Type A port of the laptop is not greater than 10W, please use our power adapter to connect to the VX1655-4K.
Do not connect the other Type C port of the VX1655-4K to another laptop or desktop computer at the same time.

Tilt Angle Adjustment

Tilt the monitor backwards to the desired viewing angle via the attached stand (15˚ to 43˚).

Note: When adjusting, support the monitor firmly with one hand while tilting the stand backwards with the other hand.

Turning the Device On/Off

Connect to a power source in one of the available configurations. For more information, see Connecting to Power.
Press the Joy Key to turn on the monitor.
To turn the monitor off, press and hold the Joy Key for three seconds.

Note: The monitor will still consume some power as long as the power cord is connected to the power outlet. If the monitor is not being used for a long period of time, please disconnect from the power outlet.

Using the Joy Key

Use the Joy Key to access the Quick Menu, activate Hot Keys, navigate the On-Screen Display (OSD) Menu, and change the settings.

Quick Menu

Move the Joy Key / / / to activate the Quick Menu.

Note: Follow the key guide that appears on the screen to select the option or make adjustments.

Icon	Name	Description
	ViewMode	Select one of the preset color settings.
	Contrast / Brightness	Adjust the contrast or brightness level.
	Input Select	Select the input source.
	Main Menu	Enter the On-Screen Display (OSD) Menu.
	Exit	Exit the Quick Menu.

Hot Keys

When the On-Screen Display (OSD) Menu is off, you can quickly access special functions by using the Joy Key.

Key	Description
	Press and hold the key to lock/unlock the OSD Menu. When the menu appears on the screen, continue holding the key for five seconds to lock/unlock the OSD Menu. If the OSD Menu is locked, the below message will appear on the screen:
	Press and hold the key to lock/unlock the Power button. When the menu appears on the screen, continue holding the key for five seconds to lock/unlock the Power button. If the Power button is locked, the below message will appear on the screen:
	Press and hold the key for five seconds to display/hide the boot up screen when the device is turned on.

General Operation

Move the Joy Key / / / to display the Quick Menu. Then press the Joy Key to display the On-Screen Display (OSD) Menu.

Move the Joy Key or to select the main menu. Then press the Joy Key to enter the selected menu.

Move the Joy Key or to select the desired menu option. Then press the Joy Key to enter the sub-menu.

Move the Joy Key or to adjust/select the setting. Then press the Joy Key to confirm. Or move the Joy Key or to make adjustments.

Note: Certain menu option adjustments do not require the user to press the Joy Key

to confirm the selection. Follow the key guide to select the option or make adjustments.

Follow the key guide to return to the previous screen.

On-Screen Display (OSD) Menu Tree

Sub-Menu
Type C
HDMI

Sub-Menu	Menu Option
Volume	(-/+, 0~100)/1
Mute	On
Mute	Off

Sub-Menu	Menu Option
Off
Office	Web
	Text
	Custom1/2/3	Low Input Lag	On
		Low Input Lag	Off
		Black Stabilization	(-/+, 0~100)/10
		Advanced DCR	(-/+, 0~100)/25
		Response Time	Standard
			Advanced
			Ultra Fast
		Hue	Red	(-/+, 0~100)/1
			Green	(-/+, 0~100)/1
			Blue	(-/+, 0~100)/1
			Cyan	(-/+, 0~100)/1
			Magenta	(-/+, 0~100)/1
			Yellow	(-/+, 0~100)/1
		Saturation	Red	(-/+, 0~100)/1
			Green	(-/+, 0~100)/1
			Blue	(-/+, 0~100)/1
			Cyan	(-/+, 0~100)/1
			Magenta	(-/+, 0~100)/1
			Yellow	(-/+, 0~100)/1
		Rename
		Recall
Movie
MAC
Mono
Game	FPS 1
	FPS 2
	RTS
	MOBA

Sub-Menu	Menu Option
Contrast/Brightness	Contrast	(-/+, 0~100)/1
Contrast/Brightness	Brightness	(-/+, 0~100)/1
Color Temperature	sRGB
	Bluish
	Cool
	Native
	Warm
	User Color	Red	(-/+, 0~100)/1
		Green	(-/+, 0~100)/1
		Blue	(-/+, 0~100)/1
Color Space	Auto
	RGB
	YUV
Color Range	Auto
	Full Range
	Limited Range
Gamma	1.8
	2.0
	2.2
	2.4
	2.6
	2.8

Sub-menu	Menu Option
Sharpness	(-/+, 0~100)/25
Aspect Ratio	4:3
Aspect Ratio	Full Screen
Overscan	On
Overscan	Off
Blue Light Filter	(-/+, 0~100)/1

Sub-menu	Menu Option
Language Select	English
	Français
	Deutsch
	Español
	Italiano
	Suomi
	Русский
	Türkçe
	日本語
	한국어
	繁體中文
	简体中文
	Česká
	Svenska
	Tiếng Việt
Resolution Notice	On
Resolution Notice	Off
Information
OSD Size	Small
OSD Size	Native
OSD Timeout	(-/+, 5/15/30/60)
OSD Background	On
OSD Background	Off
Power Indicator	On
Power Indicator	Off
Auto Power Off	On
Auto Power Off	Off
Sleep	30 minutes
	45 minutes
	60 minutes
	120 minutes
	Off
ECO Mode	Standard
	Optimize
	Conserve
DDC/CI	On
DDC/CI	Off
Auto Detect	On
Auto Detect	Off
All Recall

Technical Specifications

Item	Category	Specifications
LCD	Type	3840 x 2160 LCD 0.08964 (H)mm x 0.08964 (V)mm pixel pitch
	Display Size	40 cm (15.6" viewable)
	Color Filter	RGB vertical stripe
	Glass Surface	Anti-Glare
Input Signal	Video Sync	Micro-Packet Type C (DP v. 1.2): f_h:15~160 kHz, f_v:40~75 Hz TMDS digital (100 Ω) HDMI (v. 1.4): f_h:15~160 kHz, fv:40~75 Hz
Compatibility	PC	up to 3840 x 2160
Compatibility	Macintosh	up to 3840 x 2160
Resolution^[1]	Recommended	3840 x 2160 @ 60 Hz
Resolution^[1]	Supported	3840 x 2160 @ 24, 25, 30, 50, 60 Hz 2560 x 1440 @ 60 Hz 1920 x 1080 @ 24, 25, 30, 50, 60 Hz 1680 x 1050 @ 60 Hz 1600 x 1200 @ 60 Hz 1600 x 900 @ 60 Hz 1440 x 900 @ 60, 75 Hz 1440 x 576 @ 50 Hz 1400 x 1050 @ 60, 75 Hz 1366 x 768 @ 60 Hz 1360 x 768 @ 60 Hz 1280 x 1024 @ 50, 60, 75 Hz 1280 x 960 @ 50, 60, 75 Hz 1280 x 800 @ 60, 75 Hz 1280 x 768 @ 50, 60, 75 Hz 1280 x 720 @ 50, 60 Hz 1152 x 900 @ 66 Hz 1152 x 870 @ 75 Hz 1152 x 864 @ 60, 75 Hz 1024 x 768 @ 50, 60, 70, 72, 75 Hz 1024 x 600 @ 60 Hz 848 x 480 @ 60 Hz 832 x 624 @ 75 Hz 800 x 600 @ 56, 60, 72, 75 Hz 720 x 576 @ 50 Hz 720 x 480 @ 60 Hz 720 x 400 @ 70 Hz 640 x 480 @ 50, 60, 66, 72, 75 Hz 640 x 400 @ 60, 70 Hz 640 x 350 @ 70 Hz
Power^[2]	Input Voltage	AC 100-240V, 50/60Hz (auto switch)
Power^[2]	UE Electronic	UES60LCP-200300SPC
Display Area	Full Scan (H x V)	344.23 x 193.62 mm (13.55” x 7.62”)
Operating Conditons	Temperature	0° C to 40° C (32° F to 104° F)
	Humidity	20% to 90% (non-condensing)
	Altitude	5 km (16,404.2 feet)
Storage Conditions	Temperature	-20° C to 60° C (-4° F to 140° F)
	Humidity	5% to 90% (non-condensing)
	Altitude	12 km (39,370.1 feet)
Dimensions	Physical (W x H x D)	355.5 x 223.7 x 21.0 mm (14.0” x 8.8” x 0.8”)
Weight	Physical	0.77 kg (1.70 lbs)
Power Consumption	On	9W (Typical) without audio 10W (Typical) with 50% audio
Power Consumption	Off	≤ 0.3W

↑ Do not set the graphics card in your computer to exceed these timing modes; doing so may result in permanent damage to the display.
↑ Please use the power adapter from ViewSonic® or an authorized source only.

Compliance Information

This section addresses all connected requirements and statements regarding regulations. Confirmed corresponding applications shall refer to nameplate labels and relevant markings on the unit.

FCC Compliance Statement

This device complies with part 15 of FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules.

These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy, and if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

Reorient or relocate the receiving antenna.
Increase the separation between the equipment and receiver.
Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
Consult the dealer or an experienced radio/TV technician for help.

Warning: You are cautioned that changes or modifications not expressly approved by the party responsible for compliance could void your authority to operate the equipment.

Industry Canada Statement

CAN ICES(B) / NMB(B)

CE Conformity for European Countries

The device complies with the EMC Directive 2014/30/EU and Low Voltage Directive 2014/35/EU.

The following information is only for EU-member states:

The mark shown to the right is in compliance with the Waste Electrical and Electronic Equipment Directive 2012/19/EU (WEEE). The mark indicates the requirement NOT to dispose of the equipment as unsorted municipal waste, but use the return and collection systems according to local law.

Declaration of RoHS2 Compliance

This product has been designed and manufactured in compliance with Directive 2011/65/EU of the European Parliament and the Council on restriction of the use of certain hazardous substances in electrical and electronic equipment (RoHS2 Directive) and is deemed to comply with the maximum concentration values issued by the European Technical Adaptation Committee (TAC) as shown below.


Substance	Proposed Maximum Concentration	Actual Concentration
Lead (Pb)	0.1%	< 0.1%
Mercury (Hg)	0.1%	< 0.1%
Cadmium (Cd)	0.01%	< 0.01%
Hexavalent Chromium (Cr6⁺)	0.1%	< 0.1%
Polybrominated biphenyls (PBB)	0.1%	< 0.1%
Polybrominated diphenyl ethers (PBDE)	0.1%	< 0.1%
Bis (2-ethylhexyl) phthalate (DEHP)	0.1%	< 0.1%
Butyl benzyl phthalate (BBP)	0.1%	< 0.1%
Dibutyl phthalate (DBP)	0.1%	< 0.1%
Diisobutyl phthalate (DIBP)	0.1%	< 0.1%

Certain components of products as stated above are exempted under the Annex III of the RoHS2 Directives as noted below. Examples of exempted components are:

Copper alloy containing up to 4% lead by weight.
Lead in high melting temperature type solders (i.e. lead-based alloys containing 85% by weight or more lead).
Electrical and electronic components containing lead in a glass or ceramic other than dielectric ceramic in capacitors, e.g. piezoelectronic devices, or in a glass or ceramic matrix compound.
Lead in dielectric ceramic in capacitors for a rated voltage of 125 V AC or 250 V DC or higher.

Indian Restriction of Hazardous Substances

Restriction on Hazardous Substances statement (India). This product complies with the “India E-waste Rule 2011” and prohibits use of lead, mercury, hexavalent chromium, polybrominated biphenyls or polybrominated diphenyl ethers in concentrations exceeding 0.1 weight % and 0.01 weight % for cadmium, except for the exemptions set in Schedule 2 of the Rule.

===Indian Restriction of Hazardous Substances===

Restriction on Hazardous Substances statement (India). This product complies with the “India E-waste Rule 2011” and prohibits use of lead, mercury, hexavalent chromium, polybrominated biphenyls or polybrominated diphenyl ethers in concentrations exceeding 0.1 weight % and 0.01 weight % for cadmium, except for the exemptions set in Schedule 2 of the Rule.

Product Disposal at End of Product Life

ViewSonic® respects the environment and is committed to working and living green. Thank you for being part of Smarter, Greener Computing. Please visit the ViewSonic® website to learn more.

USA & Canada:
https://www.viewsonic.com/us/go-green-with-viewsonic

Europe:
https://www.viewsonic.com/eu/environmental-social-governance/recycle

Taiwan:
https://recycle.moenv.gov.tw/

For EU users, please contact us for any safety/accident issue experienced with this product:

	ViewSonic Europe Limited Haaksbergweg 75 1101 BR Amsterdam Netherlands
	+31 (0) 650608655
	EPREL@viewsoniceurope.com
	https://www.viewsonic.com/eu/

Copyright Information

Macintosh and Power Macintosh are registered trademarks of Apple Inc.

Microsoft, Windows, and the Windows logo are registered trademarks of Microsoft Corporation in the United States and other countries.

ViewSonic® and the three birds logo are registered trademarks of ViewSonic® Corporation.

VESA is a registered trademark of the Video Electronics Standards Association. DPMS, DisplayPort, and DDC are trademarks of VESA.

ENERGY STAR® is a registered trademark of the U.S. Environmental Protection Agency (EPA).

As an ENERGY STAR® partner, ViewSonic® Corporation has determined that this product meets the ENERGY STAR® guidelines for energy efficiency.

Disclaimer: ViewSonic® Corporation shall not be liable for technical or editorial errors or omissions contained herein; nor for incidental or consequential damages resulting from furnishing this material, or the performance or use of this product.

In the interest of continuing product improvement, ViewSonic® Corporation reserves the right to change product specifications without notice. Information in this document may change without notice.

No part of this document may be copied, reproduced, or transmitted by any means, for any purpose without prior written permission from ViewSonic® Corporation.

VX1655-4K_UG_ENG_1a_20240411

Customer Service

Limited Warranty

Safety Precautions

Troubleshooting

Maintenance

[1] Do not set the graphics card in your computer to exceed these timing modes; doing so may result in permanent damage to the display.

[2] Please use the power adapter from ViewSonic® or an authorized source only.

[1]

[2]