Noblex 24LC823H - User Manual

NOBLEX
Model No. 24LC823H
Service Ref.No. 24LC823H-00
SERVICE MANUAL LCD Television
Product Code: 1-130-242-18
Original Version
Chassis Series: UE7-L
N8WY
Contents
FILE NO.
Give complete "SERVICE REF. NO." for
parts order or servicing.It is shown on the
rating lable at the cabinet back of the unit.
This T.V. receiver will not work properly
in foreign countries where the television
transmission system and power source
differ from the design speci cations. Refer
to the speci cation table.
REFERENCE NO.
(Argentina)
Safety Notice.............................................. 2
Speci cations............................................. 3
Chassis Block Diagrams......................... 4-5
IC Block Diagrams ................................ 6-10
On-screen Service Menu System........ 11-15
Service Adjustments................................. 16
Mechanical Disassembly..................... 17-19
Cabinet Parts List..................................... 20
Chassis Electrical Parts List................ 21-29
Printed Wiring Board........................... 30-34
Schematic Diagram............................. 35-37

Summary

Safety and Precautions

General Safety Precautions

General safety rules to be observed during operation and servicing.

Product Safety Notice

Safety guidelines for component replacement and parts.

Product Specifications

Chassis Block Diagrams

Main Signal Processing Circuit

Block diagram of the main signal processing path.

Integrated Circuit (IC) Details

IC7200 MST740 KU

Pinout and internal logic of the MST740KU IC.

IC8000 QXXAAJQ1264-

Functional block diagram and pin configurations for IC8000.

IC750 QPS331 TQFP64 M

Block diagram and pinout for IC750.

IC8001 QXXAVC951-P

Block diagram and pinout for IC8001.

IC7502 & IC7504 Diagrams

Internal diagrams and functions of IC7502 and IC7504.

IC001 QTPA1517 DWPRP

Internal block diagram of the QTPA1517DWPRP IC.

On-screen Service Menu System

Service Menu Operation

Guides on accessing, navigating, adjusting, and exiting the service menu.

How to select service items and adjust data

Procedure for selecting items and adjusting data within the service menu.

Exit Service Mode

Instructions on how to exit the service mode.

Service Adjustment Data Table

Table of adjustable parameters, initial data, IC, and description.

Service Adjustments

Setting Initial Data

Procedure for setting initial data via CPU and memory IC.

White and Black Balance Adjustment

Steps to adjust white and black balance for picture quality.

Mechanical Disassembly

Disassembly Diagram

Diagram showing the exploded view of the TV components.

Stand and Cabinet Back Removal

Steps for removing the TV stand and rear cabinet cover.

Internal Board and Panel Removal

Steps for removing internal boards and the panel.

Parts Lists

Cabinet Parts List

List of external parts with part numbers.

Chassis Electrical Parts List

List of electronic components with part numbers.

Printed Wiring Board Layouts

Main Board Views

Solder and part side views of the main printed wiring board.

Power Board Views

Solder and part side views of the power board.

RC Board View

Solder side view of the remote control printed wiring board.

Schematic Diagrams

Power Board Schematic

Electrical schematic for the power board.

Inverter Board Schematic

Electrical schematic for the inverter board.

LED Board Schematic

Electrical schematic for the LED board.

Noblex 24LC823H Specifications

General

Screen Size	24 inches
Display Type	LCD
HDMI Ports	2
USB Ports	1
Contrast Ratio	3000:1
Refresh Rate	60 Hz
Aspect Ratio	16:9
Resolution	1366 x 768