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LG Flatron F900B

LG Flatron F900B
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COLOR MONITOR
SERVICE MANUAL
Website:http://biz.LGservice.com
E-mail:http://www.LGEservice.com/techsup.html
CAUTION
BEFORE SERVICING THE UNIT,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
MODEL: F900B (F900BJ-AL**E)
CHASSIS NO. : CA-130
FACTORY MODEL: F900BJ
( ) **Same model for Service
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LG Flatron F900B Specifications

General IconGeneral
Display TypeCRT
Refresh Rate85 Hz
Dot Pitch0.24 mm
Vertical Refresh Rate50 - 160 Hz
Screen Size19 inches
Response TimeUnknown
Viewable Size18 inches
Input Signal15-pin D-sub

Summary

Specifications

Safety Precautions

Wiring Diagram

Block Diagram

Description of Block Diagram

Line Filter and Associated Circuit

Function of the line filter for noise suppression.

Degauss Circuit and Coil

Operation of the degauss circuit for color purity.

SMPS (Switching Mode Power Supply)

Details and operation of the Switching Mode Power Supply.

Display Power Management Circuit

Function of the display power management circuit.

X-ray Protection Circuit

Operation of the X-ray protection circuit.

Micom (Microprocessor) Circuit

Function and operation of the Micom circuit.

Horizontal and Vertical Synchronous Processor

Generates horizontal and vertical sync signals.

Oscillating Circuit for DD Converter

Provides timing for the DC-DC converter circuit.

DD (DC to DC) Converter

Function of the DC to DC converter circuit.

DD Drive & Convert Circuit

Circuit for supplying voltage to horizontal deflection output.

Horizontal Deflection Output Circuit

Drives the horizontal deflection yoke.

High Voltage Output & FBT (Flyback Transformer)

Generates high voltage and flyback transformer function.

H-Linearity Correction Circuit

Corrects horizontal linearity for sync frequencies.

Vertical Output Circuit

Drives the vertical deflection yoke.

Dynamic Focus Output Circuit

Controls focus based on video signals.

H & V Blanking and Brightness Control

Controls blanking and brightness for H/V signals.

Image Rotation (Tilt) Circuit

Corrects image rotation (tilt) of the screen.

Adjustment

Troubleshooting Guide

Exploded View

Exploded View Parts List

Replacement Parts List

Pin Configuration

Schematic Diagram

Printed Circuit Board

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