Haier HL42XR1 Pannel and vsc connect bad, Maybe caused by surge current and EDS, Chip lose Action

3.Pannel and vsc connect bad

Bright and dark

Flashing

display alternately

Failure

Mode

Part

Name

Description

Phenomena

Failure

cause

White

B/L

normal,

only

!

white

screen

Screen

display

Maybe caused by surge current and EDS

Black

B/L

normal,

only

Black

screen

Screen

display

Circuit

Flicker

Crosstatk

LCD Vcom

imbalance

Abnormal

Only

color

Capacitance

improper bring crosstalk

inside

LCD

Color

abormal

pannel

Only

color

1 .Chip lose

action

Abnormal

2. IC short

or jointion

bad

abnormal

Color

3.Pannel

and vsc connect

bad

Failure

Mode

Part

Name

Description

Phenomena

Failure

cause

Mechanical

When

turn

Caused

by

Mechanica

noise of

backlight

panel,appear

Noise

unit

cacophony

Ripple

Connectric

circle

Causeed

by between mechanism

and

pannel

B/L off

B/L lose action

*Connect

badness

between

wire

and

electrode

B/L dark

B/L

brightness

*Connectbadness

darker

than

normal

Shortbetween wire and electrode

B/L

wire

B/L wire damaged

Operation

abnormal or systemic

noise

damaged

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