XOCECO M2019, Service Manual

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13. SECAM BGP
14. VIDEO OUTGAIN Demodulation output range adjustment
15. OM DET Over modified detecting on/off
16. S-SLICE DOWN Sync detecting slice stage
17. AUTO SLICE DN Auto detecting on/off
18. V SYNC DET Vertical sync detecting
19. V-1 WINDOW
20. AFC1 GAIN UP H AFC1gain
21. AFC2 GAIN DOWNN H AFC2 gain
22. ABCL Brightness/contrast auto control
23. ABCL GAIN Brightness/contrast auto control gain
24. GAMMA
25. BLACK ST OFF Black level delay on/off
26. BLACK ST ADJ
27. BLACK ST GAIN
28. VIF FREQ VIF selecting
29. VDL ADJ
30. UDL ADJ
31. IC SELECTION
32. OP PAL-M/N
33. OP AV-SUSTEM AV mode
34. AUDIO ATT Volume output control
35. MONITORING
36. EEPROM OPTION EEPROM selecting
37. POW-ON SEARCH Power-on search selecting
38. OSD H-POSITION OSD horizontal position adjustment
39. EEP ADJ EEPROM modifying
40. PIC-DYNAMIC Dynamic scalar selecting
41. PIC-STANDARD Standard scalar selecting
42. PIC-SOFT Soft scalar selecting
CONVERGENCE MAGNET ASSEMBLY POSITIONING
Convergence magnet assembly and rubber wedges need mechanical positioning. Refer to below figure 1.
COLOR PURITY ADJUSTMENT
NOTE: Before attempting any purity adjustment, the receiver should be operated for at least fifteen minutes.
1. Demagnetize the picture tube and cabinet using a degaussing coil.
2. Set the CONTRAST and BRIGHTNESS controls to the maximum.
3. Receive PM5515 monochromatic signal (such as G) to provide a green raster on the screen.
4. Loosen the clamp screw holding the yoke, and slide the yoke backward to provide vertical green belt
(zone) in the picture screen.
5. Remove the Rubber Wedges.
6. Rotate and spread the tabs of the purity magnet around the neck of the picture tube until the green
belt is in the center of the screen. At the same time, center the raster vertically by adjusting the
magnet.
7. Move the yoke slowly forward or backward until a uniform green screen is obtained. Tighten the
clamp screw of the yoke temporarily.