Microphone
Microphone
Combo audio jack*
Power button and power indicator
Ethernet connector
USB 3.0 connector
USB 3.0 connector
USB 3.0 connector
HDMI-out connector
USB 3.0 connector
DisplayPort® connector
Power connector
Memory card reader
Air vents
* Combo audio jack: Used to connect headsets.
ATTENTION: Be sure not to block any air vents on the computer. Blocked air vents may
cause thermal problems.
NOTE: This computer only can be placed in a vertical position.
Overview
Service and Support information
The following information describes the technical support that is available for your product,
during the warranty period or throughout the life of your product. Refer to the Lenovo Limited
Warranty for a full explanation of Lenovo warranty terms. See “Lenovo Limited Warranty
notice” later in this document for details on accessing the full warranty. If you purchased
Lenovo services, refer to the following terms and conditions for detailed information:
– For Lenovo Warranty Service Upgrades or Extensions,
go to: http://support.lenovo.com/lwsu
– For Lenovo Accidental Damage Protection Services,
go to: http://support.lenovo.com/ladps
– Online technical support is available during the lifetime of a product at:
http://www.lenovo.com/support
Replacing or upgrading hardware
Safety information for replacing CRUs
Do not open your computer or attempt any repairs before reading the “Important safety
information” in the Safety, Warranty, Environment, Recycling Information Guide and Important
Product Information Guide that was included with your computer.
If you no longer have this copy of the Safety, Warranty, Environment, Recycling Information
Guide and Important Product Information Guide, you can obtain one online from the website
at http://www.lenovo.com/UserManuals.
Pre-disassembly instructions
Before proceeding with the disassembly procedure, make sure that you do the following:
1. Turn off the power to the system and all peripherals.
2. Unplug all power and signal cables from the computer.
3. Place the system on a flat, stable surface.
The CRUs for your computer include: keyboard, mouse, adapter or power cord.
Product Name Wireless Modules
ideacentre 620S-03IKL QCNFA435, 3165NGW
Frequency band (MHz) Maximum transmit power (dBm)
Less than
WLAN 802.11b/g/n, 2400 - 2483.5 20
WLAN 802.11a/n/ac, 5150 - 5725 23
WLAN 802.11a/n/ac, 5725 - 5875 13.98
Bluetooth BR/EDR/LE, 2400 - 2483.5 20
WiHD 802.15.3c, 59400 - 63560 29 dBm (Max. RMS EIRP)
European Union conformity
EU contact: Lenovo, Einsteinova 21, 851 01 Bratislava, Slovakia
Compliance with the Radio Equipment Directive
Effective June 13, 2017, all products entering the EU that contain wireless radios now comply
with the Radio Equipment Directive, 2014/53/EU. Disregard all current statements in other
publications that relate to the R&TTE Directive, as they no longer apply to your product.
Hereby, Lenovo (Singapore) Pte. Ltd., declares that the radio equipment types listed at the
beginning of this document are in compliance with Directive 2014/53/EU.
The full text of the system EU declaration of conformity and the EU wireless module
declarations are available at the following Internet address:
http://www3.lenovo.com/us/en/social_responsibility/EU_DoC_desktops/
This radio equipment operates with frequency bands and maximum radio-frequency power
as listed at the beginning of this document.
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