AOC P/N : 41A50-144 service manual Table of Contents

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PAGE

 

TABLE OF CONTENTS

 

 

 

 

1.

SPECIFICATIONS

3

 

1-1

GENERAL SPECIFICATIONS ...................................................…

3

 

1-2 LCD MONITOR DESCRIPTION

4

 

1-3

INTERFACE CONNECTOR .................................................................…….

4

2.

PRECAUTION AND NOTICES

5

 

2-1

ASSEMBLY PRECAUTION

5

 

2-2

OPERATIONG PRECAUTION

5

 

2-3

STORAGE PRECAUTION …

5

 

2-4 HIGH VOLTAGE WARNING

5

3.

OPERATING INSTRUCTIONS

6

4.

ADJUSTMENT

7

 

4-1 ADJUSTMENT CONDITIONS AND PRECAUTIONS

7

 

4-2 ADJUSTMENTS METHOD .& DESCRIPTION

7-8

 

4-3 FRONT PANEL CONTROL KNOBS

9

5.

CIRCUIT & SOFTWARE DESCRIPTION

10

 

5-1 THE DIFFERENT BETWEEN EACH PANEL …………………………….

10

 

5-2 SPECIAL FUNCTION WITH PRESS KEY ………………………………..

10

 

5-3 THE OPTIONAL ON MAINBOARD USING SHUTTLE & 4 KEY..

10

 

5-4 THE OPTIONAL ON MAINBOARD OR OTHER ACCESSORY USING

10

 

 

DIFFERENT PANEL

 

 

5-5 SIMPLE INTRODUCTION ABOUT LM500 CHIPSET …………………...

11

 

5-6

SOFTWARE FLOW-CHART

12

6.

A). INTERFACE-BOARDTROUBLE SHOOTING CHART

14

 

B). INVERTER - MODULE TROUBLE SHOOTING CHART

23

 

 

I. CHI-MEI-inverter spec & trouble shooting chart

23

 

C). ADAPTER TROUBLE SHOOTING CHART & BOM

50

 

D). AUDIO TROUBLE SHOOTING CHART & BOM

 

 

E). Main-chip GMZAN1 specifications

54

7.

MECHANICAL OF CABINET FRONT DIS-ASSEMBLY

64

8.

PARTS LISTING .........................................................................................………...

65

9.

POWER SYSTEM AND CONSUMPTION CURRENT

73

10.

PCB LAYOUT .....................................................................………………………...

74

11.

MAINBOARD SCHEMATIC DIAGRAM …

75

12.ADAPTER SCHEMATIC DIAGRAM 13.AUDIO SCHEMATIC DIAGRAM

2

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Contents Spectrum Series SEP Table of Contents Specifications for LCD Monitor General specificationsLCD-PANEL AC-IN Adapter Monitor Block DiagramInterface Connectors LCD Monitor DescriptionStorage Precautions Precautions and NoticesAssembly Precaution Operating PrecautionsPIN no Description RED Operating InstructionsAdjustment Adjustment Conditions and PrecautionsAdjustment Method Adjust 6500 color-temperature Front Panel Control Knobs CHI-MEI Panel M170E1 CIRCUIT-DESCRIPTIONOSD-INDEX Explanation Input not SupportMODULE-TPYE Component SIMPLE-INTRODUCTION about LM700 chipsetPanel Clear factory mode flag Power-On Subrotine ChartSoftware Flow Chart SET factory mode flagII. Main Subrotine Loop No Screen Appear Interface-Board Trouble-Shooting chartPANEL-POWER Circuit U200-DATA OutputMainboard Check Oscillator Block as above Keyboard Block check POWER-BLOCK check END Panel Luminance WAS Down There is an interferences in DOS ModeCorporation Inverter -MODULE Spec &Trouble Shooting ChartFunction 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 Check U101 PIN4NO Freq ~70KHZ Part number 80AL17-1-CH Black, 80AL17-2-CH WhitePage Reference Part Quantity Cat.NO IV. Adapter BOM List Part no AL15-2-LIPCB PCB for CH-1205 Revd PCS For Front Heatsink No Voice Output AUDIO-MODULE Trouble shooting chartII. Sound Distortion Audio BOMGMZAN1 Name Description Pin DescriptionAnalog-to-Digital Converter PIN #Host Interface HIF / External On-Screen Display Clock Recovery / Time Base Conversion TFT TFT Panel InterfacePIN # Name Description 2pxl/clk 1pxl/clkTest Pins Typical Stand-alone Configuration System-level Block DiagramZoom Operating ModesNative Slow DclkDownscaling Destination Stand AloneSource Stand Alone Clock Recovery Circuit Functional DescriptionOverall Architecture Clock Recovery Circuit Minimum Typical Maximum Clock Recovery CharacteristicsSampling Phase Adjustment Source Timing GeneratorPin Connection for RGB Input with Composite Sync ADC CharacteristicsAnalog-to-Digital Converter 2.3.1 Pin Connection Pin Connection for RGB Input with Hsync/VsyncSource Timing Measurement Sync. Signal SupportDisplay Mode Support Input Timing MeasurementIRQ Controller Data PathIRQ-Generation Conditions IRQ Event Remark RGB Offset TFT Panel Interface Timing SpecificationScaling Filter Gamma TablePCLKB*4 Pclk *1Vsync width and display position in TFT Horizontal size in TFTHsync width in TFT One pixel per clock mode in TFT Power ManagerState 3 Panel Fully Active State 0 Power OffState 1 Power On State 2 Panel Drive EnabledValue 4 bits Drive Strength in mA Panel Interface Drive StrengthHost Interface Panel Interface Pad Drive StrengthSerial Communication Protocol Timing Diagram of the gmZAN1 Serial CommunicationGmZAN1 Serial Channel Specification Parameter Min Typ Max Multi-Function Bus MFBOn-Screen Display Control On-Chip OSD Controller OSD Color MapTclk Input Tclk SpecificationPvdd Electrical CharacteristicsDC Electrical Characteristic Parameter Min Typ Max Absolute Ratings Parameter Min Typ MaxMechanical of Cabinet Front DIS-ASSEMBLY T780KMGHBAA0A Specification Parts List of CabinetParts List of Cabinet continue Location CBPC780GM Specification Parts List of Conversion BoardLocation AI780GM Specification Location AI780GM SMD EC 22UF 16V 85C Csize KEPC780EK Parts List of KEY PC BoardParts List of Audio Board Parts List of DC-POWER BoardPower System and Consumption Current Adapter ModuleInverter Module PCB Layout TOP-LEVEL Flow Schematic DiagramII. GMZAN1 Block Lvds Block MCU Block Power Block KBL405G Adapter Schematic CH-1205C1,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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