Philips P16 free download

File name P16.PDF

16 109P2 GS3 CM25 Purity and Convergence Adjustments 9 Go to cover page 1. Purity adjustment - Make sure the monitor is not exposed to any external magnetic field. - Produce a full red pattern on the screen, adjust the purity magnet rings on the PCM assy (on CRT) to obtain a complete field of the color red. This is done by moving the two tabs (2-pole) in such a manner that they advance in an opposite direction but at the same time to obtain the same angle between 2-pole purity magnet the two tabs, which should be approximately 180 6-pole convergence magnet degree. - Check by full green pattern and full blue pattern 4-pole convergence magnet again to observe their respective color purity. Deflection Yoke 2. Static convergence Introduction 4-pole Beam motion producced by the Slight deviation in the static convergence can be 4-pole convergence magnet corrected by using two permanent pairs of magnets which are fitted around the neck of the CRT. These are the 4-pole magnet and the 6-pole magnet. S The 4-pole magnet move the outermost electron S N beams (R and B) parallel in the opposite direction from the other. The 6-pole magnet moves the B G R N B G R N outermost electron beam (R, B and G) parallel in the opposite direction from the other. N S The magnetic field of the above magnets do not affect S the center of the CRT neck. Beam displacement Magnetic flux Setting direction lines - Before the static convergence setting can be made, the monitor must be switched on for 30 minutes. - The focus setting must be made correctly. - Signal: 640 * 480, 31.5 kHz/60 Hz mode. - Set the tabs of the 4-pole magnet in the neutral position. This is when the tabs are opposite one 6-pole Beam motion producced by the another. In this position the magnets do not affect the 6- pole convergence magnet deflection of the R and B electron beams. - Set the tabs of the 6-pole magnet in the neutral