AOC P/N : 41A50-144 service manual Clock Recovery / Time Base Conversion

Page 42

 

 

Table 3 : Clock Recovery / Time Base Conversion

 

 

 

 

 

PIN #

Name

 

I/O

Description

125

DVDD

 

 

Digital power for Destination DDS (direct digital synthesizer). Must be bypassed

 

 

 

 

with a 0.1uF capacitor to digital ground plane.

127

DAC_DGNDA

 

 

Analog ground for Destination DDS DAC. Must be directly connected to the

 

 

 

 

analog system ground plane.

128

DAC_DVDDA

 

 

Analog power for Destination DDS DAC. Must be bypassed with a 0.1uF

 

 

 

 

capacitor to pin 127 (DAC_DGNDA).

129

PLL_DVDDA

 

 

Analog power for the Destination DDS PLL. Must be bypassed with a 0.1uF

 

 

 

 

capacitor to pin 131 (PLL_DGNDA).

130

Reserved

 

 

For testing purposes only. Do not connect.

131

PLL_DGNDA

 

 

Analog ground for the Destination DDS PLL. Must be directly connected to the

 

 

 

 

analog system ground plane.

132

SUB_DGNDA

 

 

Dedicated pin for the substrate guard ring that protects the Destination DDS.

 

 

 

 

Must be directly connected to the analog system ground plane.

133

SUB_SGNDA

 

 

Dedicated pin for the substrate guard ring that protects the Source DDS. Must be

 

 

 

 

directly connected to the analog system ground plane.

134

PLL_SGNDA

 

 

Analog ground for the Source DDS PLL. Must be directly connected to the

 

 

 

 

analog system ground.

135

Reserved

 

 

For testing purposes only. Do not connect.

136

PLL_SVDDA

 

 

Analog power for the Source DDS DAC. Must be bypassed with a 0.1uF

 

 

 

 

capacitor to pin 134 (PLL_SGNDA)

137

DAC_SVDDA

 

 

Analog power for the Source DDS DAC. Must be by passed with a 0.1uF

 

 

capacitor to pin 138 (DAC_SGNDA)

 

 

 

 

138

DAC_SGNDA

 

 

Analog power for the Source DDS DAC. Must be directly connected to the

 

 

analog system ground.

 

 

 

 

139

SVDD

 

 

Digital power for the Source DDS. Must be bypassed with a 0.1uF capacitor to

 

 

digital ground plane.

 

 

 

 

141

TCLK

 

I

Reference clock(TCLK) input from the 50 MHz crystal oscillator

142

XTAL

 

O

If using an external oscillator, leave this pin floating. If using an external crystal,

 

 

 

 

connect crystal between TCLK(141) and XTAL(142). See MFB5(pin 107).

143

PLL_RVDDA

 

 

Analog power for the Reference DDS PLL. Must be bypassed with a 0.1uF

 

 

 

 

capacitor to pin 144(PLL_RGNDA)

144

PLL_RGNDA

 

 

Analog ground for the Reference DDS PLL. Must be directly connected to the

 

 

 

 

analog system ground plane.

145

Reserved

 

 

For testing purposes only. Do not connect.

146

SUB_RGNDA

 

 

Dedicated pin for the substrate guard ring that protects the Reference DDS. Must

 

 

 

 

be directly connected to the analog system ground plane.

148

VSYNC

 

I

CRT Vsync input. TTL Schmitt trigger input.

149

SYN_VDD

 

 

Digital power for CRT Sync input.

150

HSYNC/CSYNC

 

I

CRT Hsync or CRT composite sync input. TTL Schmitt trigger input.

41

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Contents Spectrum Series SEP Table of Contents Specifications for LCD Monitor General specificationsLCD-PANEL LCD Monitor Description Monitor Block DiagramInterface Connectors AC-IN AdapterOperating Precautions Precautions and NoticesAssembly Precaution Storage PrecautionsOperating Instructions PIN no Description REDAdjustment Adjustment Conditions and PrecautionsAdjustment 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 AppearPANEL-POWER Circuit U200-DATA OutputMainboard 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 ZoomDownscaling Destination Stand AloneSource Stand Alone Clock Recovery Circuit Functional DescriptionOverall 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 MeasurementIRQ Controller Data PathIRQ-Generation Conditions IRQ Event Remark Gamma Table TFT Panel Interface Timing SpecificationScaling Filter RGB OffsetPclk *1 PCLKB*4Vsync width and display position in TFT Horizontal size 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 ProtocolGmZAN1 Serial Channel Specification Parameter Min Typ Max Multi-Function Bus MFBOn-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 BoardPower System and Consumption Current Adapter ModuleInverter 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.

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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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