AOC P/N : 41A50-144 service manual There is an interferences in DOS Mode, Panel Luminance WAS Down

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There is an interferences in DOS MODE

NOTE :the criteria of doing AUTO-CONFIGURATION : must be a full-size screen, if the screen not full , the auto- configuration will fail. So in dos mode ,just set your “CLOCK” in OSD-MENU to zero or use some EDITOR software which can full fill the whole screen (ex: PE2, HE) and then press “AUTO”

Or you can use “DOS1.EXE” which attached in your Driver disk to optimize DOS mode performance

V.THE PANEL LUMINANCE WAS DOWN

Use white pattern and resolution 1280x1024 @ 60Hz , CHROMA 7120 measured the center of panel

Set Contrast, brightness =maximal, RGB= 50 Quit from OSD-screen, measured Y(luminance) With chroma 7120, check Y= 240±10 CD/M2 ?

NG

OK

If Y can reach ＞190 cd/m2 that means

The lamp still working well, so we just re-do the white-balance process

As following procedure

Adjust VR201 until maximal, measured Y = 240±10 cd/m2 ?

NG

If the Y less than 160 cd/m2 (after the VR201= MAX, contrast, brightness = max) then change the LAMP of panel

OK

Use white-pattern, press MENU button along with AC power-plug in ( you will in factory mode) The OSD-menu will be at left-top of screen,

press AUTO button to automatically adjust blacklevel value, you will see the sign PASS ,if FAIL , manual adjust the blacklevel until value 43 !

Set contrast, brightness to max, and turn the VR201 to max , wait for 20 minutes until the luminance Y stable

The Y should be larger than 200 cd/m2

(for panel which already use for a year, the Y luminance might be a little down, around 180 cd/m2, there is acceptable too)

Follow this manual page 7 item 4-2 method to more detail procedure for do a white-balance adjust

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Contents Spectrum Series SEP Table of Contents General specifications Specifications for LCD MonitorLCD-PANEL LCD Monitor Description Monitor Block DiagramInterface Connectors AC-IN AdapterOperating Precautions Precautions and NoticesAssembly Precaution Storage PrecautionsOperating Instructions PIN no Description REDAdjustment Conditions and Precautions AdjustmentAdjustment Method Adjust 6500 color-temperature Front Panel Control Knobs Input not Support CIRCUIT-DESCRIPTIONOSD-INDEX Explanation CHI-MEI Panel M170E1SIMPLE-INTRODUCTION about LM700 chipset MODULE-TPYE ComponentPanel SET factory mode flag Power-On Subrotine ChartSoftware Flow Chart Clear factory mode flagII. Main Subrotine Loop Interface-Board Trouble-Shooting chart No Screen AppearU200-DATA Output PANEL-POWER CircuitMainboard Check Oscillator Block as above Keyboard Block check POWER-BLOCK check END There is an interferences in DOS Mode Panel Luminance WAS DownInverter -MODULE Spec &Trouble Shooting Chart CorporationFunction Load Circuit M P O C O R P O R a T I O N Trouble Shooting of CHI-MEI Inverter DIVTL0037-D42 Part List Part Part Number QTY Description Supplier Remark Name Trouble Shooting Hight Voltage Protection Enbale Abnormality Transformer Abnormality Part number 80AL17-1-CH Black, 80AL17-2-CH White Check U101 PIN4NO Freq ~70KHZPage IV. Adapter BOM List Part no AL15-2-LI Reference Part Quantity Cat.NOPCB PCB for CH-1205 Revd PCS For Front Heatsink AUDIO-MODULE Trouble shooting chart No Voice OutputAudio BOM II. Sound DistortionGMZAN1 PIN # Pin DescriptionAnalog-to-Digital Converter Name DescriptionHost Interface HIF / External On-Screen Display Clock Recovery / Time Base Conversion Name Description 2pxl/clk 1pxl/clk TFT Panel InterfacePIN # TFTTest Pins System-level Block Diagram Typical Stand-alone ConfigurationSlow Dclk Operating ModesNative ZoomDestination Stand Alone DownscalingSource Stand Alone Functional Description Clock Recovery CircuitOverall Architecture Clock Recovery Circuit Source Timing Generator Clock Recovery CharacteristicsSampling Phase Adjustment Minimum Typical MaximumPin Connection for RGB Input with Hsync/Vsync ADC CharacteristicsAnalog-to-Digital Converter 2.3.1 Pin Connection Pin Connection for RGB Input with Composite SyncInput Timing Measurement Sync. Signal SupportDisplay Mode Support Source Timing MeasurementData Path IRQ ControllerIRQ-Generation Conditions IRQ Event Remark Gamma Table TFT Panel Interface Timing SpecificationScaling Filter RGB OffsetPclk *1 PCLKB*4Horizontal size in TFT Vsync width and display position in TFTHsync width in TFT Power Manager One pixel per clock mode in TFTState 2 Panel Drive Enabled State 0 Power OffState 1 Power On State 3 Panel Fully ActivePanel Interface Pad Drive Strength Panel Interface Drive StrengthHost Interface Value 4 bits Drive Strength in mATiming Diagram of the gmZAN1 Serial Communication Serial Communication ProtocolMulti-Function Bus MFB GmZAN1 Serial Channel Specification Parameter Min Typ MaxOn-Screen Display Control OSD Color Map On-Chip OSD ControllerTclk Specification Tclk InputAbsolute Ratings Parameter Min Typ Max Electrical CharacteristicsDC Electrical Characteristic Parameter Min Typ Max PvddMechanical of Cabinet Front DIS-ASSEMBLY Parts List of Cabinet T780KMGHBAA0A SpecificationParts List of Cabinet continue Parts List of Conversion Board Location CBPC780GM SpecificationLocation AI780GM Specification Location AI780GM SMD EC 22UF 16V 85C Csize Parts List of KEY PC Board KEPC780EKParts List of DC-POWER Board Parts List of Audio BoardAdapter Module Power System and Consumption CurrentInverter Module PCB Layout Schematic Diagram TOP-LEVEL FlowII. GMZAN1 Block Lvds Block MCU Block Power Block Adapter Schematic CH-1205 KBL405GC1,C2,C4 --- 1uF/50V

P/N : 41A50-144 specifications

The AOC P/N: 41A50-144 is a versatile and high-performing monitor that caters to both professional and casual users. With its sleek design and array of features, this model embodies the epitome of modern display technology.

One of the standout characteristics of the AOC 41A50-144 is its impressive display resolution. Equipped with a 1920 x 1080 pixels Full HD panel, it delivers sharp, vibrant images and ensures that text and graphics appear crisp and clear. The monitor boasts a wide viewing angle that allows for consistent color reproduction, making it perfect for collaborative workspaces or multi-screen setups.

In terms of refresh rates, the AOC 41A50-144 supports a 144Hz refresh rate, catering exceptionally well to gamers and media consumers who seek responsive performance. This high refresh rate reduces motion blur, providing a smoother experience during fast-paced gaming sessions or action-packed videos. Coupled with a 1ms response time, this monitor minimizes ghosting and lag, delivering a seamless visual experience.

The monitor utilizes advanced technologies to enhance the viewing experience further. One notable feature is AMD FreeSync support, which synchronizes the monitor's refresh rate with the GPU's frame rate, effectively eliminating screen tearing and stuttering during gameplay. This leads to a more immersive experience and ultimately gives gamers a competitive edge.

Another critical aspect of the AOC 41A50-144 is its connectivity options. It comes with multiple ports including HDMI, DisplayPort, and VGA, making it compatible with a wide range of devices. This versatility ensures that users can easily connect their computers, gaming consoles, or multimedia players without any hassle.

The AOC 41A50-144 also places importance on user comfort. It incorporates features like flicker-free technology and a low blue light mode to reduce eye strain during extended use. This focus on ergonomics allows for a more enjoyable viewing experience, regardless of the tasks at hand.

Overall, the AOC P/N: 41A50-144 combines high-performance, advanced technologies, and user-centered design. Whether for gaming, professional tasks, or entertainment purposes, this monitor stands out as a reliable and efficient solution that meets the demands of various users. Its features and specifications make it a compelling choice for anyone looking to enhance their display setup.
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