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LG Flatron ez T910B User Manual

LG Flatron ez T910B
31 pages
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COLOR MONITOR
SERVICE MANUAL
CAUTION
BEFORE SERVICING THE UNIT,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
MENU SELECT
Brightview
T910BU (T910BG-UL)
T910B (T910BG-EL)
CHASSIS NO. : CA-111
FACTORY MODEL: T910BG
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LG Flatron ez T910B Specifications

General IconGeneral
BrandLG
ModelFlatron ez T910B
CategoryMonitor
LanguageEnglish

Summary

CAUTION: BEFORE SERVICING

SPECIFICATIONS

Picture Tube, Signal, and Power Specs

Details on CRT size, signal levels, power input, and connector types.

Display Performance and Environment

Active display area, resolution, bandwidth, operating temperature, and altitude.

Power Consumption Modes and Physical Size

Power usage by mode, overall dimensions, and weight of the monitor.

SAFETY PRECAUTIONS

Safety-Related Component Warning

Identifies critical safety components and warns against unauthorized modifications.

Fire and Shock Hazard Precautions

Emphasizes using isolation transformers and proper lead dress in high voltage areas.

X-Radiation and High Voltage Safety

Outlines precautions for measuring and maintaining high voltage to prevent X-radiation.

TIMING CHART

Horizontal Sync Parameters

Details timing specifications for horizontal synchronization across different modes.

Vertical Sync Parameters

Details timing specifications for vertical synchronization across different modes.

Resolution and Refresh Rate

Lists supported display resolutions and their corresponding refresh rates.

FRONT AND REAR VIEWS

Front Control Panel Components

Identifies buttons like Menu, Select, Brightview, Power, and navigation arrows for OSD control.

Power Indicator and Shortcut Keys

Explains the power indicator light and direct access functions for brightness/contrast.

CONTROL LOCATIONS

High Voltage and B+ Adjustment Points

Identifies VR801 for High Voltage and VR901 for B+ voltage adjustments.

WIRING DIAGRAM

Key Connection Points and Connectors

Highlights DY-Pin, Anode Cap, Degaussing Coil, and various board connectors for wiring reference.

DISASSEMBLY PROCEDURES

Tilt/Swivel & Back Cover Removal

Step-by-step guide to removing the monitor's back cover and tilt/swivel mechanism.

Chassis Assembly Removal

Instructions for carefully detaching the main chassis assembly from the monitor housing.

SYSTEM BLOCK DIAGRAM

Signal Input and OSD Control Path

Covers signal input, MICOM, E2PROM, OSD IC, and associated control circuits.

Deflection, HV, and Power Systems

Details H/V sync, deflection drivers, high voltage generation, SMPS, and protection circuits.

Ancillary and Correction Circuits

Covers degaussing, linearity, focus, and tilt correction functions.

BLOCK DIAGRAM DESCRIPTIONS

Power, Protection, and Core Control Systems

Explains Line Filter, SMPS, Power Management, X-ray Protection, Micom, and Sync Processor functions.

Deflection, Image Quality, and Video Path

Details deflection, High Voltage, Linearity, Moire, Rotation, OSD, and Video signal circuits.

ADJUSTMENT PROCEDURES

General Adjustment Information and Degaussing

Notes on tools, alignment, and procedures for automatic/manual degaussing.

B+ Voltage and High-Voltage Adjustment

Steps for adjusting B+ voltage to 190V and High Voltage to 27kV using specific potentiometers.

Factory Mode and White Balance Calibration

Procedures for setting factory modes and adjusting white balance and luminance levels.

ADJUSTMENT PROCEDURES (Continued)

White Balance, Luminance, and Drive Adjustments

Detailed steps for color calibration, including BIAS, DRIVE, and LUMINANCE adjustments.

EDID Data Input and Focus Adjustment

Procedures for loading EDID data and fine-tuning the focus control on the FBT.

TROUBLESHOOTING GUIDE

Troubleshooting No Power Issues

A flowchart guiding diagnosis of power-related problems, starting with the fuse and power indicator.

TROUBLESHOOTING GUIDE (Continued)

Troubleshooting No Character Issues

A flowchart for diagnosing problems where no text or characters are displayed on the screen.

TROUBLESHOOTING GUIDE (Continued)

Troubleshooting No Raster Issues

A flowchart for diagnosing situations with no video output or raster scan, checking power indicator and voltages.

TROUBLESHOOTING GUIDE (Continued)

Troubleshooting No Vertical Deflection

A flowchart for diagnosing issues where the image lacks vertical display, checking deflection IC pins and waveforms.

TROUBLESHOOTING GUIDE (Continued)

Troubleshooting Display Power Management (DPM)

A flowchart for diagnosing failures in Stand-by, Suspend, or Off modes, checking MICOM signals and power lines.

TROUBLESHOOTING GUIDE (Continued)

Troubleshooting No Degaussing Function

A flowchart for diagnosing failures in the degaussing circuit, checking MICOM, transistors, relay, and coil.

TROUBLESHOOTING GUIDE (Continued)

Troubleshooting On-Screen Display (OSD)

A flowchart for diagnosing OSD issues, checking IC301 signals and front control inputs.

EXPLODED VIEW

EXPLODED VIEW PARTS LIST

REPLACEMENT PARTS LIST

Capacitors and Diodes

Lists replacement part numbers and specifications for capacitors and diodes.

REPLACEMENT PARTS LIST (Continued)

Capacitors and Diodes (Continued)

Continues the list of replacement capacitors and diodes with their part numbers and specifications.

REPLACEMENT PARTS LIST (Continued)

Diodes, ICs, Coils, and Transistors

Lists replacement part numbers for diodes, integrated circuits, coils, and transistors.

REPLACEMENT PARTS LIST (Continued)

Transistors and Resistors

Lists replacement part numbers for transistors and resistors with their specifications.

REPLACEMENT PARTS LIST (Continued)

Resistors (Continued)

Continues the list of replacement resistors with their part numbers and specifications.

REPLACEMENT PARTS LIST (Continued)

Resistors and Other Components

Lists remaining resistors and other parts like switches, transformers, and variable resistors.

PIN CONFIGURATION

TDA4866J Pinout

Details the pin functions for the TDA4866J vertical deflection booster IC.

M62501P/FP Pinout

Details the pin functions for the M62501P/FP chip used for OSD or related functions.

SCHEMATIC DIAGRAM

PRINTED CIRCUIT BOARD LAYOUTS

Control Board Layout

Shows the component placement and routing on the solder side of the control PCB.

Main Board Layout

Shows the component placement and routing on the solder side of the main PCB.

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