Product Introduction
When an LG monitor shows no power, random shutdowns, flickering display, or fails to start, the issue is often caused by a degraded or incompatible power adapter. The LG ADS-45SQ-19-3 (EAY65890001 / 19040E) 19V 2.1A 40W adapter is designed to deliver stable regulated DC output for LG display systems, ensuring consistent performance for professional, gaming, and office environments.
Application Scenarios
- LG UltraWide monitors (25-inch and 29-inch productivity displays)
- LG UltraGear entry-level gaming monitors
- LG IPS LED office and business display systems
- Home and workstation multi-screen setups
- Replacement for failed LG 40W OEM monitor adapters
Technical Specifications
| Brand | LG Electronics |
| Model | ADS-45SQ-19-3 |
| Part Number | EAY65890001 / 19040E |
| Output Voltage | 19V DC |
| Output Current | 2.1A |
| Power Rating | 40W |
| Connector Type | 6.5mm x 4.4mm Barrel with Center Pin |
| Polarity | Center Positive |
| Input | 100–240V AC 50/60Hz |
| Condition | Replacement Power Adapter |
OEM Replacement Compatibility
- LG UltraWide series (25UM / 29UM / 29WP models)
- LG UltraGear 24” / 27” entry gaming monitors
- LG IPS LED display systems (business and home use)
- EAY65890001 / 19040E / ADS-45SQ-19-3 series adapters
- LG 19V 40W monitor power platforms
FAQ
Q1: Can I use this for any LG monitor?
A: Only monitors requiring 19V 2.1A with 6.5mm x 4.4mm center-pin connector are compatible.
Q2: Is this compatible with 65W LG adapters?
A: No. Higher-power LG monitors require 65W or 110W adapters with different electrical design.
Q3: What is the function of the center pin?
A: It allows LG monitors to identify correct power rating and ensure safe regulated power delivery.
