Samsung CL21B501HL - Troubleshooting; 4-2 Adjustment

Troubleshooting
4-14 Samsung Electronics
4-2 Adjustment
4-2-1 Service Instruction
1.GeneralAdjustment:
In general, a color TV can provide ideal visual quality by adjusting the basic settings such as the vertical size, horizontal size,
focus, etc.
Display a black and white picture on the screen to check if the picture is clearly displayed.
Iftherearesome‘spotted’pointsonthescreenwhendisplayingablackandwhitepicture,degaussthescreenusingthe
degauss coil. If the spotted points remain, re-adjust the purity and the convergence.
Thiscompletesthebasicperformanceexamination.