NEC MultiSync FP1350 Service Manual page 43

3) To degauss panel surface
Switch on the degaussing coil, keep a distance between panel surface and degaussing coil to more than 50
cm. Move the degaussing coil vertically near the panel surface.
Keep distance of panel surface and degaussing coil to more than 15 mm.
4) Degaussing method of CRT surface
Starting from edge of CRT, move the degaussing coil toward CRT center in circular motion, spending 6 to 7
seconds. (about 4 or 5 round )
When LED is orange in factory mode ("AUTO EMF ON" appear on OSM or TAG 3, TAG 4, TAG 5, TAG B,
TAG C is selected), Do not degauss.
In user mode, do not degauss except when "DEGAUSS OK" appear on OSM.
Service Factory MODE: Auto EMF function is off. (LED is yellow)
Auto EMF function off -> on (LED is orange.)
User MODE: Auto EMF function is on.(LED is green)
Auto EMF function on -> off
5) After sufficiently degaussing the CRT, move degaussing coil slowly away from the panel surface while
rotating from corner to center, taking more than 3 seconds.
Turn off SW more than 1 m away from the CRT. Degauss again if the unit is gaussed.
Vertical
a. TAG 3, TAG 4, TAG5, TAG B, TAG C is selected.
b. When OSM MENU disappear, Push "+" and "t" switch at once.
Then "AUTO EMF ON" appear on OSM, and AUTO EMF function is on
state.
Push any switch and power on/off, AUTO EMF function become off state.
But when receive frequency change, AUTO EMF function stay on state.
a. Open the MENU (U),TAG7)-"DISPLAY MODE", and Press "+" and "t"
switch at once.
b. Then "DEGAUSS OK" appear on OSM, and AUTO EMF function is on state.
When push any switch and power on/off, AUTO EMF function become off
state. But when receive frequency change, AUTO EMF function stay on state.
over 1 m
SW OFF
5-2
Horizontal
Magnetized Pattern Exam ple