Acer D240H service manual Bad Screen

Page 64

Acer

Acer –LCD-D240H

4.2 Bad Screen

Bad Screen

Check LVDS

cable

NG

Change LVDS

cable

NG

Check Crystal:

Pin 114,126 of

U102

NG

Change X101, C114,

C126

OK

Workmanship

 

OK

 

LVDS cable NG

 

 

 

 

OK

 

Check the pins

 

of U102

 

 

 

 

 

Image 64
Contents LCD Monitor Acer D240H Table of Contents Important Safety Notice Accessories Main FeaturesGeneral Operation Specifications Environmental conditions Operating SpecificationSafety, EMC, Ergonomics and Compatibility Requirements StorageCondition Spec Output characteristics Items Condition SpecReliability Protection characteristics Condition Spec Status Sync Video PowerBacklight Power Supply Items SpecificationMode Chromaticity Coordinate Cool Brightness outputWhite balance WarmInput / Output Signal Specifications AudioUSB in Option HdmiDVI-D VGATiming table Items Condition SpecificationHorizontal Vertical Other Modes Mode Resolution Pixel Clock MHz Sync KHz Sync Hz Ratio Items SpecificationAudio output Spec DDC dataDPF function DPF function introduceCard reader function Nand play photo functionMemory card test DPF function test 11.4.1 DPF select photo mode flow DPF setting menu flow Acer Setting menu layer-1 Setting menu layer-2 Setting menu layer-3 Acer Acer DPF System Profile Function Specifications Panel general specificationsFirst Second Third Fourth Control Range Default Value OSD StructureEmea NO-EMEA Depend on timing & S/N OSD Translation Main menu Noemea EnglishDeutsch Français Español Italiano 意大利语Deutsch Français Español Italiano 简体中文 日本語 西班牙语意大利语 荷兰语 芬兰语 Color management OSD scenario OSD language Nonemea EnglishDimension Dimension Spec2Cabinet Material 3Mechanical Specification4Base Mechanical Interface Unit Package Specification Units package Items SpecUnit Packing Vibration Random VibrationGross Weightkg 1S/N LabelCarton label Drop HeightcmPage Flat Panel Specification Product Specification Handling Precautions Display Characteristics General DescriptionOptical Characteristics Unit Conditions Min Typ MaxProduct Specification Tr F Tr R B R G B PCB Interface Functional Block DiagramMating Type TFT LCD Module Absolute Maximum RatingsBacklight Unit Symbol Min Typ Max Unit ConditionsSignal Electrical Characteristics Symbol Parameter Min Typ Max Units ConditionParameter Min Typ Max Unit Product Specification Input data format Signal Characteristic Pixel Format Image= Odd Pixel Data E = Even Pixel Data Signal Description PIN # Signal Name DescriptionTiming Characteristics Symbol Min Typ Max UnitTiming diagram CLKPower ON/OFF Sequence Parameter Value Unit Min Typ MaxConnector & Pin Assignment Pin AssignmentSignal for Lamp connector Reliability Test Items Required ConditionShipping Label Mechanical Characteristics Ver Ver Exploded Diagram Troubleshooting Bad Screen White Sreen Spare parts List Assy Bezel ,LP2441 Schematics and Layouts If BD LayoutPower BD Layout Acer Keypad BD Layout Touchpad BD Layout Card BD Layout 5Switching Mode Power Supply circuit CF 16 Bit I/F Assembly and Disassembly Main Board S11 Set up the speaker Page S17 Assemble the base with the stand

D240H specifications

The Acer D240H is a remarkable monitor that embodies modern technology and design, appealing to both casual users and professionals alike. Boasting a sleek and minimalist aesthetic, the D240H features an ultra-slim profile, making it a stylish addition to any workspace or home setup. One of the standout aspects of this monitor is its vibrant 24-inch Full HD display, delivering crisp and clear visuals with a resolution of 1920 x 1080 pixels. This level of clarity is perfect for tasks ranging from everyday office work to gaming and multimedia consumption.

The monitor incorporates IPS technology, which provides broader viewing angles and enhanced color reproduction. With an impressive 178-degree viewing angle, users can enjoy consistent color and picture quality from virtually any position. This feature is particularly beneficial for collaborative environments where multiple viewers need to see the screen simultaneously.

Additionally, the Acer D240H is designed with the user’s comfort in mind. The monitor incorporates Acer's EyeProtect technology, which reduces eye strain during extended use. This includes features such as Flicker-less technology to eliminate flickering on the display and Blue Light Filter to minimize harmful blue light emissions. These enhancements allow users to work or play for longer periods without discomfort.

In terms of connectivity, the D240H is versatile, featuring HDMI and VGA ports, making it compatible with a wide range of devices, from laptops to gaming consoles. The inclusion of these ports ensures that users can easily connect and switch between different devices.

Another notable characteristic of the Acer D240H is its energy efficiency. It is designed to consume less power without compromising performance, which not only reduces energy costs but also contributes to a greener environment. Furthermore, it meets various environmental standards, making it an eco-friendly choice.

In conclusion, the Acer D240H is a feature-rich monitor that combines superior display technology, user comfort, and energy efficiency. Whether for work or leisure, it delivers a visually appealing experience that meets the needs of various users, making it a smart choice in today’s competitive monitor market.