AOC P/N : 41A50-144 service manual MCU Block

Page 79

+5V

MCU Block

R431

10 K(OP)

(Panel-Select)*

K/E Select

U302

8XC51/PLCC

R319

HDATA0

2

T2/P1.0

P2.0/A8

24

3

25

1

MFB7

T2EX/P1.1

P2.1/A9

1

KEY

4

26

2

+5V

MFB8

P1.2

P2.2/A10

2

5

27

MFB9

6

P1.3

P2.3/A11

28

HCLK

P1.4

P2.4/A12

7

29

/BKLT-ON

R321

R323

R325

BKLT-PWM

HFS

P1.5

P2.5/A13

8

30

GND

+5V

P1.6

P2.6/A14

9

31

0 (OP)

0 (OP)

0 (OP)

C313

D301

P1.7

P2.7/A15

22 uF

1N4148

RST

10

RST

PSEN

32

33

R328

R329

ALE/PROG

RST

GND

10 K

10 K

11

RXD

RXD/P3.0

WP

13

36

CN302

TXD

TXD/P3.1

P0.7/AD7

R313

14

37

KEY1(ORANGE?)

IRQ

INT0/P3.2

P0.6/AD6

1

15

38

KEY2(GREEN?)

MFB2

INT1/P3.3

P0.5/AD5

2

10 K

SDA

16

39

KEY3(AUTO)

TO/P3.4

P0.4/AD4

3

SCL

17

40

KEY4(ENTER)

T1/P3.5

P0.3/AD3

4

RST1

18

41

KEY5(RIGHT)

WR/P3.6

P0.2/AD2

5

19

42

KEY6(LEFT)

/VGA_CON

RD/P3.7

P0.1/AD1

6

GND

43

KEY7(POWER)

R340

P0.0/AD0

7

20

+A5V

8

XTAL2

44

9

VCC

X300

R341

0

35

21

EA/VP

1

2

3

4

1

2

3

4

HEADER 9

XTAL1

GND

TEST(OP)

NC NC NC NC

CP301

CP302

C303

20MHz

1000 pF

1000 pF

C305

C304

22

1 12 23 34

33 pF

C306

100uF

0.1 uF

8

7

6

5

8

7

6

5

33 pF

GND

GND

+A5V

+12V

R300

R301

U300

R303

+5V

10 K

10 K

VCC

8

10 K(OP)

C944

C403

SDA

5

C300

wp

R311

0.1 uF

100uF

CN303

SI

0.1 uF

10 K

3

1

7

GND

+5V

WP

2

2

1

JP303

SCL

A0

1

3

6

2

SCK

A1

4

3

R315

MMBT3904

Q304

A2

5

4

/BKLT-ON

R403

VSS

+5V

HEADER 5

10 K

4.7K(OP)

24LC04B

GND

GND

GND

GND

VR501

R401

R402

BKLT-PWM

10 K

0(OP)

C401

1K(OP)

100uF(OP)

AOC (Top Victory) Electronics Co., Ltd.

GND

GND

Title

MICRO CONTROLLER

Size

Document Number

715A820-1

Rev

B

B

Date:

Tuesday, July 10, 2001

Sheet

3

of

6

2

Image 79

Contents Spectrum Series SEP Table of Contents General specifications Specifications for LCD MonitorLCD-PANEL AC-IN Adapter Monitor Block DiagramInterface Connectors LCD Monitor DescriptionStorage Precautions Precautions and NoticesAssembly Precaution Operating PrecautionsPIN no Description RED Operating InstructionsAdjustment Conditions and Precautions AdjustmentAdjustment 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 chartU200-DATA Output PANEL-POWER CircuitMainboard 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 DclkDestination Stand Alone DownscalingSource Stand Alone Functional Description Clock Recovery CircuitOverall 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 MeasurementData Path IRQ ControllerIRQ-Generation Conditions IRQ Event Remark RGB Offset TFT Panel Interface Timing SpecificationScaling Filter Gamma TablePCLKB*4 Pclk *1Horizontal size in TFT Vsync width and display position 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 CommunicationMulti-Function Bus MFB GmZAN1 Serial Channel Specification Parameter Min Typ MaxOn-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 BoardAdapter Module Power System and Consumption CurrentInverter 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.