NEC MultiSync V920 Service Manual

Also see for AccuSync 50M: User manual Brochure Specifications User manual Service manual

NEC MultiSync V920 Service Manual Manual pdf 12 page image

9(12) FOCUS Adjust:(A) Adjust H.parabola Vp-p by OSM H-Focus control.> 53K H.para : 90% ~ 100%< 53K H.para : 80% ~ 90%Check T303 output Vp-p.H.para : 350 Vp-p (Max. 500 Vp-p)Hitachi V.para : 190 Vp-p (Max. 190 Vp-p)Samsung V.para : 150 Vp-p (Max.150 Vp-p)(B) MODE: 79.9kHz 1280*1024(75)(C) PATTERN: CROSSHATCH(D) Adjust Focus VR(S), horizontal line must be clearly. (FBT center VR)Adjust Focus VR(D), vertical line must be clearly. (FBT up VR)(13) Convergence Adjust:(A) MODE: 79.9kHz 1280*1024(75)(B) PATTERN: CROSSHATCH.(C) Adjustment: Use the convergence meter to check the spec. if can not follow the spec,adjust Yoke coil to make be follow the spec.(14) Automatically adjust:Adjust H-SIZE, V-SIZE, H-PHASE, V-PHASE, PINCUSHION, TRAPEZOID R.G.B. GAIN byfactory product line automatic adjustment system¢wsystemER9300 ,ER2300)(Adjust NO.1~14MODE).H.SIZE : 356+3mmH.SIZE : 267+2mmH.POSI : +2mmH.POSI : +2mm(15) White Balance Adjustment (set VR304 in the central of VR)(A) MODE: 80kHz 1280*1024(B) PATTERN: ALL BLACK(C) Make External Degauss(D) Video signal off (0Vp-p), Brightness set to Max, check screen at the brightness 1~1.5FL.(4.2+0.8 cd/m²), or adjust VR304 at brightness 1~1.5FL.(4.2+0.8 cd/m²)X = 0.283 ± 0.01y = 0.297 ± 0.01Y = 4.2 ± 0.8 cd/m²(16) White Balance Check and ABL Adjust:(A) MODE: 80kHz 1280*1024(75)(B) PATTERN: CENTER BLOCK(WINDOW)