FUNAI 32ME303V/F7 User Manual

32” LCD TV
chassis FL13.8
© 2013 Funai Electric Co., Ltd.
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SERVICE MANUAL
Contents
TYPE A
32ME303V/F7 MAGNAVOX (Serial No.: ME1, ME2)
LF320EM4 EMERSON (Serial No.: ME1, ME3)
LF320EM4F EMERSON (Serial No.: ME1, ME2)
LF320FX4F FUNAI (Serial No.: ME1)
TYPE B
LF320EM4 EMERSON (Serial No.: DS1)
LF320EM4F EMERSON (Serial No.: DS1)
LF320FX4F FUNAI (Serial No.: DS1, DS2)
This service manual contains information of different types of models.
Make sure to refer to the section describing your model.
This service manual contains information of
130718

FUNAI 32ME303V/F7 Specifications

General

Brand	FUNAI
Model	32ME303V/F7
Category	LCD TV
Language	English

Summary

IMPORTANT SAFETY NOTICE

Safety Precautions for LCD TV Circuit

Detailed safety instructions for technicians regarding protective devices and openings.

Precautions during Servicing

Guidelines for handling critical parts and wiring during repair work.

Safety Check after Servicing

Clearance Distance

Specifications for maintaining safe distances between circuit components and metallic parts.

Leakage Current Test

Procedures for testing and ensuring safe leakage current levels after service.

STANDARD NOTES FOR SERVICING

Circuit Board Indications

Explains how to identify output pins, IC pins, and connector pins on circuit boards.

How to Remove / Install Flat Pack-IC

Step-by-step guide for safely removing and installing flat pack integrated circuits.

Instructions for Handling Semiconductors

Ground for Human Body

Instructions on wearing grounding bands to prevent electrostatic discharge.

Ground for Workbench

Guidelines for grounding the workbench to protect sensitive components.

CABINET DISASSEMBLY INSTRUCTIONS

Disassembly Flowchart

Visual flowchart detailing the sequence for disassembling TV cabinet parts.

Disassembly Method

Detailed steps and notes for safely disassembling and reassembling the TV's physical structure.

ELECTRICAL ADJUSTMENT INSTRUCTIONS

Purity Check Mode

Mode to check for non-active pixels by cycling through full-screen color displays.

VCOM Adjustment

Procedure for adjusting VCOM levels, crucial after replacing specific main CBA units.

White Balance Adjustment

Steps to adjust white balance for accurate color mixing, especially after panel or main CBA replacement.

HOW TO INITIALIZE THE LCD TV

FIRMWARE RENEWAL MODE

Equipment Required

Lists required items: USB storage device and Remote Control Unit.

Firmware Update Procedure

Detailed steps for updating the TV's firmware using a USB storage device.

Factory Upgrade (Firmware Upgrade/Flash Upgrade)

Update procedure

Steps for performing factory upgrades, including initialization and setting values.

TROUBLESHOOTING

Power Supply Section

Flowcharts and guidance for diagnosing and resolving power supply issues.

Video Signal Section

Troubleshooting flowcharts for issues related to video signal input and display.

Audio Signal Section

Flowcharts to diagnose and resolve problems with audio output.

BLOCK DIAGRAMS

System Control Block Diagram

Overview of the system control unit's architecture and interconnections.

Video/Audio Block Diagram

Illustrates the signal paths for video and audio processing within the TV.

Digital Signal Process Block Diagram [TYPE A]

Diagram detailing the digital signal processing stages for Type A models.

Digital Signal Process Block Diagram [TYPE B]

Diagram detailing the digital signal processing stages for Type B models.

LED Backlight Drive Block Diagram

Shows the circuit responsible for driving the LED backlight system.

Power Supply Block Diagram

High-level diagram of the power supply unit and its main functional blocks.

SCHEMATIC DIAGRAMS / CBA AND TEST POINTS

Standard Notes

General notes and warnings regarding schematic diagrams and component replacement.

LIST OF CAUTION, NOTES, AND SYMBOLS USED IN THE SCHEMATIC DIAGRAMS ON THE FOLLOWING PAGES:

Explains symbols, cautions, and notes applicable to schematic diagrams.

Power Supply Schematic Diagram [TYPE A]

Function Schematic Diagram

Digital Main 1 Schematic Diagram [TYPE A]

WIRING DIAGRAM [TYPE A]

EXPLODED VIEWS

Packing

TYPE A PARTS LIST [32ME303V/F7 (Serial No.: ME1)]

Mechanical Parts

List of physical components for the 32ME303V/F7 (ME1) model.

LCD PANEL ASSEMBLY

Specific parts list for the LCD panel assembly.

Electrical Parts

NOTES:

Notes regarding part availability and component tolerances.

TYPE A PARTS LIST [32ME303V/F7 (Serial No.: ME2)]

Mechanical Parts

List of physical components for the 32ME303V/F7 (ME2) model.

TYPE A PARTS LIST [LF320EM4 (Serial No.: ME1)]

Mechanical Parts

List of physical components for the LF320EM4 (ME1) model.

TYPE B PARTS LIST [LF320EM4 (Serial No.: DS1)]

Mechanical Parts

List of physical components for the LF320EM4 (DS1) model.

REVISION HISTORY

COMPARISON LIST OF MODEL NAMES