Camera LED indicator
Built-in camera
Built-in microphone
Built-in speakers
Memory card reader
Combo audio jack*
Optical drive eject button (selected models only)
Optical drive (selected models only)
Power button
Air vents
Security cable slot
Power connector
HDMI-out connector
Ethernet connector
USB 2.0 connector
USB 2.0 connector
USB 3.0 connector
* Combo audio jack: Used to connect headsets.
ATTENTIONS:
• Be sure not to block any air vents on the computer. Blocked air vents may cause
thermal problems.
• If your computer is equipped with an infrared (IR) remote control, do not put the USB
IR receiver on the same plane as the screen.
NOTES:
• Remove the plastic film before using the computer.
• Thecomboaudiojackdoesnotsupportconventionalmicrophones.
• Differentindustrystandardsmayleadtotherecordingfunctionnotbeingsupportedif
third-party headphones or headsets are connected.
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 AIO 330-20AST QCNFA435, RTL 8821CE
ideacentre AIO 330-20IGM RTL 8821CE, 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 10
European Union conformity
EU contact: Lenovo, Einsteinova 21, 851 01 Bratislava, Slovakia
Compliance to Directives for Information Technology Equipment (ITE) and Radio
Equipment
EMC Directive Statement: This product is in conformity with the protection requirements
of EU Council Directive 2014/30/EU on the approximation of the laws of the Member States
relating to electromagnetic compatibility. The full compliance statement is located in the
User Guide. See “Accessing other manuals” in this document for additional information.
Models with a radio device:
Compliance with the Radio Equipment Directive
Hereby, Lenovo (Singapore) Pte. Ltd., declares that the radio equipment types listed at the
beginning of this section 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://www.lenovo.com/eu-doc-desktops
This radio equipment operates with frequency bands and maximum radio-frequency power
as listed at the beginning of this section.