Philips FPF42C128135UA-52 Circuit Descriptions and Abbreviation List, Board Function Description

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9.

 

FHP PDP

Circuit Descriptions and Abbreviation List

9. Circuit Descriptions and Abbreviation List

9.1Board Function Description

9.1.1Logic Board Function

Data Processor

Gamma adjustment (1 / 2.2 / 2.4 / 2.6 / 2.8).

NTSC/EBU format (Colour matrix) Switch.

RGB gain Control (White balance adjustment, amplitude limitation).

Error diffusion technology (grey scale adjustment).

Dither (grey scale adjustment).

Burn-in pattern generation.

Data Converter

Quasi out-line adjustment (luminous pattern control).

Scan Controller

Address driver control signal generator (ADM).

Scan driver control signal generator (SDM).

X/Y sustain control signal generator.

Waveform ROM

Waveform pattern for drive / timing memory.

MPU

Synchronous detection.

System control.

Driving voltage (Va, Vs, Vr, Vw) adjustment.

Abnormal watch (breakdown detection) / abnormal processing.

I_s (sustain) current control (sustain pulse control).

I_a (address) current control (sub-field control).

External communication control.

Flash memory (firmware).

EEPROM

Control parameter memory.

Counts operating time (number of hours).

Abnormal status memory (16 places).

9.1.2Function of X-SUS Board

DC/DC power supply block

Vcc (+5V) -> Ve (+17V) / XFve (+18V, floating).

X Switching Block

Switching during address period.

Switching during sustain period.

Switching during reset period.

Current Detector Block

I_sx (sustain) current detection.

I_ax (address) current detection.

9.1.3Function of Y-SUS Board

DC/DC Power Supply Block

Vcc (+5V) -> Ve (+17V) / YFve (+ 18V, floating)

Vs (+85V) -> Vw (+185V)

Switching Block

Switching during address period.

Switching during sustain period.

Switching during reset period.

Current Detector Block

I_sy (sustain) current detection.

I_sp (SDM) current detection.

9.1.4Function of ADM Board

Address Driver Module

Supplies voltage Va to the glass plate.

9.1.5Function of SDM Board

Scan Driver Module

Supplies voltage Vs to the glass plate.

9.1.6Function of PSU Board

Stand-by Power Supply Block

AC100-240: +5V & +3V3 Stand-by.

PFC Block (AD/DC Power Supply Block)

AC100-240: +390V.

AD/DC Power Supply Block

+380V, Vcc (+5V), Vs (+80V), Va (+60V).

Current Detection Block

l_a (address) current detection.

Abnormal Voltage Monitoring

Vs excess voltage monitoring.

Va excess voltage monitoring.

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Contents Contents Colour Television ModuleSerial Numbers Technical SpecificationsSpecifications Index of this chapterConnector positions PWB locationsSome connector layouts Lvds connector CN1 Logic BoardSafety Instructions, Warnings, and Notes Safety InstructionsBoard Swap Instructions Directions for UseMechanical Instructions GeneralSUS Circuit Board Radiation plate positionMechanical Instructions ABUS-L Circuit Board ABUS-R Circuit BoardLogic Board PSU BoardHow to Connect the ComPair Tool Service Modes, Error Codes, and Fault FindingError codes Repair ToolsProcess Flow Advanced PDP Exchange Actual Way-of-WorkingCustomized Repair Repair Instructions 2 42 A4 ALiS Plasma Display PanelRemark Fault Finding Flowcharts Problem analysis procedure PDP repair / board swapProblem Analysis Procedure The entire screen does not light Short-circuit check on Boards and Power Supply Lines ABUS-L board CN52 pins 1 3 or CN52 pins 4 Are shorted? Case of Logic Board replacement ProcedureFollow the Logic Board Exchange Vertical line/Vertical bar problem analysis procedure Replace the defective parts G16400032.eps Horizontal bar problem analysis procedure Logic Board Exchange Logic Board Exchange Fault Fault status Contents #$% Philips Block Diagrams, Test point Overview, and Wave Forms Block DiagramsPower block diagram Test Points Wave FormsCircuit Diagrams and PWB Layouts Voltage Setting ProcedureAlignments Circuit Descriptions and Abbreviation List Board Function DescriptionSpecifications 42A1 42A2 42A3 42A4 Differences between the Versions A1, A2, A3, and A4Layouts SUS Spare Parts List List of abbreviationsRevision List Overview of chassis and manuals, covered by This manual

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