Mitsubishi Electric Diamond Pro 930SB, Руководство по обслуживанию

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4-5
5. B+ Check
(A) Mode: No.1
(B) Pattern: All Black. (Brightness set to cut off)
(C) Adjust VR101 to make 13.9V of D153 cathode voltage.
(D) Check power source should be 79.5V
±
1V, 6.9V
±
0.2V, 26.5V
±
1V, -14.1V
±
0.5V, 13.9V
±
0.1V.
(E) After aging, Check 13.9V
±
0.1V of D153 cathode again.
6. X-RAY Test
(A) Mode: No.1
(B) Pattern: Normal Crosshatch (Brightness set to cut off)
(C) Test
Apply a jumper wire between TP1 and TP2 then power on, Monitor should be active in x-ray protector.
7. H. V. Adjustment
(A) Mode: No.11
(B) Pattern: Full Black (Brightness set to cut off)
(C) Adjust VR301 to make the high voltage has 26.0
±
0.1kV.
(D) After aging, Check high voltage has 26.0
±
0.1kV again.
8. H-Raster Center Adjustment
(A) Mode: No.13
(B) Pattern: Full Black
(C) Adjust the Brightness Control so that the background is visible.
(D) Adjust VR501 to make the raster mostly near center background position.
(E) |a-b| <2.0mm. (a: Bezel-Raster of left side, b: Bezel-Raster of right side)
9. Preset Adjustment
(A) Mode No.11
(B) Pattern: Cross hatch
(C) Enter to Factory mode. Set VG (Vertical Gain): 80.9% and VO (Vertical Offset): 46.6%.
Set Linearity (VER):33.3% and Vertical Balance:46.6%.
(D) Adjust H-phase, V-center, H-size, V-size, Pincushion, Trapezoid, Bow, Parallelogram Top-corner,
Bottom-corner, and rotation to make Picture Position Center and Picture Size 356*266mm.
(E) If V-size can’t over scan, Change mode to MODE 1(VGA400), adjust VG in Factory mode to make
V-size can over scan 5mm for each top and down side when V size set to 100% on OSM.
(F) Change Mode to No.1, Adjust VR503 to 5~10mm over scan with keeping H-size=100%.