FUNAI LH8-M40BB User Manual

SERVICE MANUAL
This Service Manual is for the
LH8-M40BB (A03P0EP) / LT8-M40BB (A03P1EP) model.
For the LH8-M40BB (A03P0EP) / LT8-M40BB (A03P1EP) model, the letter
(A03P0EP) / (A03P1EP) is printed on the Serial Number Label on the back
of the unit. Refer to the Serial Number Label below.
Serial No. Label Serial No. Label
"A03P0EP" "A03P1EP"
40″ COLOR LCD TELEVISION
LH8-M40BB / LT8-M40BB

FUNAI LH8-M40BB Specifications

General

Display Technology	LCD
Screen Size	40 inches
Aspect Ratio	16:9
Refresh Rate	60 Hz
Resolution	1920 x 1080
Display Type	LCD
Input Ports	HDMI, USB, Component, Composite
Sound Output	20W

Summary

SPECIFICATIONS

TUNER, LCD PANEL, DVB-T, VIDEO Specifications

AUDIO Specifications

IMPORTANT SAFETY PRECAUTIONS

Safety Checks for LCD TV Circuit

Crucial checks before returning the set to the customer.

Antenna and Leakage Current Tests

Tests for antenna connection and leakage current.

General Safety Warnings and Notes

Warnings about hot chassis, lead dress, and product safety.

Precautions During Servicing

Guidelines for safe component replacement and assembly.

Post-Servicing Safety Checks

Clearance Distance and Leakage Current Tests

Verifying clearance and leakage current after service.

STANDARD NOTES FOR SERVICING

Circuit Board Indications and Flat Pack-IC Handling

CABINET DISASSEMBLY INSTRUCTIONS

Disassembly Flowchart and Method

TV Cable Wiring Diagram

ELECTRICAL ADJUSTMENT INSTRUCTIONS

Auto Calibration and White Balance

HOW TO INITIALIZE THE LCD TELEVISION

FIRMWARE RENEWAL MODE

TROUBLESHOOTING GUIDE

Power and Fuse Troubleshooting

Flowcharts for power issues and blown fuses.

Power Supply Voltage Troubleshooting

Flowcharts for specific voltage output failures (12V, 3.3V, 5V, 24V).

Other Voltage and Key Operation Troubleshooting

Signal and Control Troubleshooting

SCHEMATIC DIAGRAMS AND CBA LAYOUTS

Power Supply and Inverter Schematics

Main Board and Interface Schematics

WAVEFORMS

Video Signal Waveforms

Audio Signal Waveforms

WIRING DIAGRAMS

MECHANICAL PARTS LIST

ELECTRICAL PARTS LIST

INVERTER ASSEMBLY COMPONENTS