4 Trouble Shooting GuideThe maintenance diagram only used to board level repairˈifyou want tothe further maintenance,please connect design departmentǄNot opening machine˖No pictureLCD is not brightPowerlightAre there 5Vpower supplyoutputNot brightredAre there 12Vpower supplyoutputNoAre the powerON/OFF signalnormalYesChange powerboardNoChange mainboardYesChange powerboardNo Yes

trouble shooting guide

bus control adjustment

Haier L52A18-A User Manual

Warning

important safety instructions

Buttons and interface location

rear panel control

Remote controller

Remote controller key function

External equipment connections

choose your connection

pc setup

connecting headphones

Choose the Menu language

Searching Channel

channel edit

channel exchange

Watching TV Program

Picture Control Functions

Sound Control Functions

Timer Functions

Function Menu

Adjust Menu

Lock Setup

other functions

Stream media broadcast system

to start the media play

to play picture

to play movie

to enjoy music

to select the music and pic item

copy file function

Maintenance

Troubleshooting

Specifications

Format

L52A18

L52A18-A

L52A18-AK