Degauss?

aku baru beli monitor crt compaq secondhand.
dekat menu monitor tu ada fungsi 'degauss'
bila aku tekan bergegar la plak skrin monitor tu mcm tgh menggeliat.

tak paham pekebender ni.
masa bila benda ni berguna?

skycrew

Degaussing monitors

Today the most common use of degaussing is in CRT-based computer monitors. For example, many monitors use a metal plate near the front of the tube to focus the electron beams from the back. This plate, the shadow mask, can pick up strong external fields and from that point produce discoloration on the display.

To combat this, CRTs add a copper coil wrapped around the front of the display, known as the degaussing coil. Tubes without an internal coil can be degaussed using an external hand held version. Internal degaussing coils in CRTs are generally much weaker than external degaussing coils, since a better degaussing coil takes up more space. A degauss causes a magnetic field inside the tube to oscillate rapidly, with decreasing amplitude. This leaves the shadow mask with a small and somewhat randomized field, removing the discoloration.
A degauss in progress
A degauss in progress

The high current surge which takes place during this automatic degauss is the cause of the audible 'thunk' which can be heard (and felt) when televisions and CRT computer monitors are switched on. Visually, this causes the image to shake dramatically for a second or so. Many televisions and monitors automatically degauss their picture tube when switched on, before an image has been displayed.

In most commercial equipment the current surge to the degauss coil is regulated by a simple PTC thermistor device which initially has a low resistance but quickly changes to a high resistance due to the heating effect of the current flow. Such devices are designed for a one-off transition from cold to hot at power up, so 'experimenting' with the degauss effect by repeatedly switching the device on and off is not recommended as it may cause this component to fail. The effect will also be weaker, since the PTC hasn't had time to cool off.

Ax

crt aku pon ada
hahahahahah
bes gak tekan ...

ekkk bm sket .. aku bi lemah woo .. muet ckup2 mkn jek ..

GAMEOVER

Monitor tuh kalo ader magnetik field dia nyer screen kaler lari.

Ko tekan degauss tuh kira macam reset balik segala elektron kat dalam tuh.