PROBLEM

 

ITEMS TO CHECK

 

LOCATION

Two fine horizontal

• The 2 very faint thin lines across the screen are normal.

lines are visible on

They are caused by the aperture grille stabilization

 

 

the screen.

filaments(Damper Wires) which are required for all

 

 

 

aperture grille CRTs’.

 

 

 

 

Aperture Grille

 

 

 

 

Electron Gun

 

Shadow of

 

 

 

Damper Wires

 

 

 

 

 

 

Damper Wires

 

 

 

Shadow of Damper Wires

Aperture Grille Type

 

 

 

 

 

 

A buzzing sound when power on.

A brief vibration or hum sound that is heard just after power up is normal. This is caused by the automatic degaussing function. This sound will be heard each time the monitor is powered up from a cold start and each time the manual degauss button is used.

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Image 16
Mitsubishi Electronics NFL9905STTFW manual Lines are visible on