This document is a user's guide for several LG monitor models: L1752H, L1952H, L1752HM, L1952HM, L1752HQ, L1952HQ, L1752HR, and L1952HR. It provides essential information regarding safety, installation, usage, maintenance, troubleshooting, and technical specifications.
Function Description
These devices are LG LCD monitors designed for use with computers. They display visual output from a connected computer system. Some models (L1752HM, L1952HM) also include integrated speakers for audio output. The monitors feature an On Screen Display (OSD) control system for adjusting various display parameters, and some models offer an "f-ENGINE" feature for optimizing image conditions.
Important Technical Specifications
Display:
- L1752H/L1752HQ/L1752HR/L1752HM: 17 inches (43.2 cm) Flat Panel Active matrix-TFT LCD, Anti-Glare coating, 17 inches viewable, 0.264 mm pixel pitch.
- L1952H/L1952HQ/L1952HR/L1952HM: 19 inches (48.19 cm) Flat Panel Active matrix-TFT LCD, Anti-Glare coating, 19 inches viewable, 0.294 mm pixel pitch.
- Horizontal Freq.: Analog: 30 - 83 kHz (Automatic); Digital: 30 - 71 kHz (Automatic).
- Vertical Freq.: 56 - 75 Hz (Automatic).
- Input Form: Separate TTL, Positive/Negative, SOG (Sync On Green), Digital.
- Signal Input: 15 pin D-Sub Connector, DVI - D connector (Digital).
- Input Form: RGB Analog (0.7 Vp-p/ 75 ohm), Digital.
Resolution (Recommended):
- 1280 x 1024 @60 Hz (for both 17-inch and 19-inch models).
- Max Resolution: Analog: VESA 1280 x 1024 @75 Hz; Digital: VESA 1280 x 1024 @60 Hz.
Power Consumption:
- On Mode: 30 W (Typ.) for 17-inch models; 33 W (Typ.) for 19-inch models.
- Sleep Mode: ≤ 1 W.
- Off Mode: ≤ 1 W.
Dimensions & Weight (Net, With Stand):
- L1752H/L1752HQ/L1752HR:
- Width: 36.45 cm / 14.35 inches.
- Height: 35.18 cm / 13.85 inches (Min) to 45.18 cm / 17.79 inches (Max).
- Depth: 20.74 cm / 8.17 inches.
- Net Weight: 3.68(+0.085) kg (8.17 lbs).
- L1752HM:
- Width: 36.44 cm / 14.34 inches.
- Height: 39.09 cm / 15.39 inches (Min) to 45.09 cm / 17.75 inches (Max).
- Depth: 20.74 cm / 8.17 inches.
- Net Weight: 3.88(+0.085) kg (8.62 lbs).
- L1952H/L1952HQ/L1952HR:
- Width: 40.20 cm / 15.83 inches.
- Height: 36.47 cm / 14.36 inches (Min) to 46.47 cm / 18.30 inches (Max).
- Depth: 20.74 cm / 8.17 inches.
- Net Weight: 4.51(+0.085) kg (10.02 lbs).
- L1952HM:
- Width: 40.20 cm / 15.83 inches.
- Height: 40.60 cm / 15.98 inches (Min) to 46.60 cm / 18.35 inches (Max).
- Depth: 20.74 cm / 8.17 inches.
- Net Weight: 4.70(+0.085) kg (10.36 lbs).
Tilt Range: -5°~20°.
Height Range: Maximum 3.94 inch (100 mm) for L1752H/L1752HQ/L1752HR/L1952H/L1952HQ/L1952HR; Maximum 2.36 inch (60 mm) for L1752HM/L1952HM.
Power Input: AC 100-240V~50/60Hz 0.8A.
Environmental Conditions:
- Operating: Temperature 10°C to 35°C, Humidity 10% to 80% non-Condensing.
- Storage: Temperature -20°C to 60°C, Humidity 5% to 90% non-Condensing.
Audio (L1752HM, L1952HM only):
- RMS Audio Output: 1W+1W(R+L).
- Input Sensitivity: 0.7Vrms.
- Speaker Impedance: 16Ω.
Usage Features
Installation:
- Stand Assembly: The monitor stand is assembled by inserting the stand body into the product and then attaching the stand base. A "click" sound indicates proper assembly.
- Speaker Connection (L1752HM, L1952HM): Speakers are attached to the back of the monitor by inserting a hook into a slot, followed by connecting an Audio DC-In Cable.
- Cable Connection: Connect the signal cable (D-sub or DVI-D) and power cord. The power cord should be connected to an easily accessible power outlet.
- Power On: Press the power button on the side switch panel.
- Self Image Setting Function (Analog Mode): Automatically adjusts display settings for optimal performance upon first connection or when manually activated via the 'AUTO/SET' button.
Positioning:
- Tilt Adjustment: The display panel can be tilted from -5° to 20° for ergonomic viewing.
- Height Adjustment: The monitor's height can be adjusted within a specified range (100 mm for non-speaker models, 60 mm for speaker models). Users are warned not to place fingers between the monitor and stand bottom during adjustment.
On Screen Display (OSD) Control Adjustment:
- Accessing OSD: Press the MENU button.
- Navigation: Use the ▲/▽ buttons to select items and the AUTO/SET button to confirm or enter sub-menus.
- Adjustments:
- PICTURE: Brightness, Contrast, Gamma.
- COLOR: Preset (sRGB, 6500K, 9300K), Red, Green, Blue levels.
- POSITION: Horizontal, Vertical.
- TRACKING: Clock, Phase, Sharpness (for clarity and stability).
- SETUP: Language, OSD Position (Horizontal, Vertical), White Balance, Power Indicator (ON/OFF), Factory Reset.
- OSD Lock/Unlock: Press and hold the MENU button for several seconds to lock or unlock OSD controls.
- AUTO IMAGE ADJUSTMENT: Press the AUTO/SET button to automatically adjust the display image to ideal settings for the current screen resolution.
- f-ENGINE (FLATRON F-ENGINE): This feature allows selection of optimized image conditions (Movie/Text/User/Normal) for different content types. The "User" mode allows manual adjustment of brightness, ACE (Adaptive Clarity Enhancer), and RCM (Real Color Management).
Audio Features (L1752HM, L1952HM only):
- Side Jack: Headphone/Earphone input, which automatically mutes speaker volume when plugged in.
- Rear Audio Input: Connects to the LINE OUT jack of the PC sound card.
- LINE OUT: Terminal to connect to external speakers with a built-in amplifier.
Maintenance Features
Safety Precautions:
- Power Cord: Use only the supplied power cord. Ensure it's easily accessible and not damaged.
- Operation: Operate from the specified power source. Avoid overloaded outlets and damaged cords.
- Do Not Open: No user-serviceable components inside; dangerous high voltages are present even when off.
- Placement: Do not place on sloping shelves unless secured. Use manufacturer-recommended stands. Avoid blocking ventilation openings.
- Fire/Hazards: Turn off when leaving the room. Keep children from inserting objects into openings. Do not add non-designed accessories. Unplug during lightning storms or extended periods of non-use.
Cleaning:
- Unplug before cleaning.
- Use a slightly damp (not wet) cloth.
- Do not spray aerosol directly on the screen to avoid electrical shock.
Repacking:
- Keep original carton and packing materials for transport.
Disposal:
- The fluorescent lamp contains mercury.
- Dispose of the product according to local regulations, not with general household waste.
Troubleshooting:
The guide provides solutions for common issues:
- No image: Check power cord, power indicator, brightness/contrast, power saving mode, PC power.
- "OUT OF RANGE" message: Adjust PC video card settings to within the display's frequency range.
- "CHECK SIGNAL CABLE" message: Check signal cable connection.
- "OSD LOCKED" message: Unlock OSD by holding the MENU button for several seconds.
- Incorrect display image: Use AUTO/SET button, adjust H/V position, Clock, Phase, Sharpness. Check video card settings (frequency, resolution, color depth).
- Screen color mono/abnormal: Check signal cable, video card insertion, color settings (24 bits/true color).
- Screen blinks: Check for interlace mode, power voltage (AC100-240V 50/60Hz).
- Display driver issues: Install display driver from CD or LGE website. Check if video card supports Plug&Play.
Ergonomic Recommendations:
- Maintain a forward tilt angle of the monitor not exceeding 5 degrees for comfortable viewing.
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