LG HF85LA User Manual

P/NO : MFL71103202 (1811-REV00)
CHASSIS : FZ91A
MODEL : HF85LA HF85LA-NA
CAUTION
BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
DLP PROJECTOR
SERVICE MANUAL
Copyright © 2018 LG Electronics Inc. All rights reserved. Only training and service purposes.
CONFIDENTIAL
Any reproduction, duplication, distribution (including by way of email, facsimile or other electronic means),
publication, modification, copying or transmission of this Service Manual is STRICTLY PROHIBITED unless you
have obtained the prior written consent of the LG Electronics entity from which you received this Service Manual.
The material covered by this prohibition includes, without limitation, any text, graphics or logos in this Service
Manual.

LG HF85LA Specifications

General

Display Technology	DLP
Brightness	1500 ANSI Lumens
Contrast Ratio	150, 000:1
Light Source	Laser
Light Source Life	20, 000 hours
HDR Support	Yes
Smart TV	Yes (webOS)
Wireless	Yes (Wi-Fi, Bluetooth)
3D	Yes
Native Resolution	1920 x 1080
Noise Level	30 dB
Power Consumption	100W
Ports	HDMI, USB, Ethernet, Audio Out
Screen Size	40 - 120 inches

Summary

Safety Precautions

Important Safety Notice

Key safety-related characteristics of electrical and mechanical parts identified in this manual.

General Guidance for Service

Guidelines for using isolation transformers and handling components during service.

AC Leakage Current Checks

Procedures for performing cold and hot checks of AC leakage current.

Product Specifications

Application Range and Test Requirements

Defines the scope of application and conditions for testing projector parts.

Test Methods and Specifications

Outlines test methodologies and required specifications for performance, safety, and EMC.

Model General Specifications

Provides general specifications for projector models including input, power, and environmental conditions.

Supported Video Resolutions

HDMI Input Resolutions (PC/DTV)

Lists supported video resolutions for HDMI input, detailing frequencies and pixel clocks.

Software Update Procedure

Block Diagram

Exploded View Diagram

Disassembly Guide

Assembly Guide

Troubleshooting Guide

Poor Connection: Main & LED Board

Identifies poor connections on the Main and LED Board assembly and their associated circuit numbers.

Poor Connection: LD Driver & Jack Board

Identifies poor connections on the LD Driver and Jack Board assembly and their associated circuit numbers.

Troubleshooting Flow Chart