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Item. Alignment
description.
Alignment Specification.(Refer
spec.)
(12).Convergence
Adjustment.
* Adjust 4 / 6 poles around CRT neck and
VRS on top of Deflection Yoke if
necessary.
a = Nominal HEIGHT.
b = Nominal WIDTH.
a a
b
Center:
Љ
0.15 mm.
In-circle:
Љ
0.25 mm.
Out -circle:
Љ
0.38 mm.
(13).Moiré (Adjustment.)
set up.
*Mode: 1280 x 1024. 75HZ, Full White
pattern.
1) H Moiré: set at 0,
V Moiré: set at 25 (for each
preset mode)
* ITC: Samsung M46QCK761X123
(TCO/MDT)
2). Check :
a) Mode 10: 1024 x 768;
b) Mode 8 : 800 x 600 ;
c) Mode 1 : 640 x 480.
Brightness at 15 FL:
Moiré: not visible.
(14). OSD Times out.
Set at 20 sec.
(15). Language set up.
Set “English “as default.
(16).Zoom setting.
Press recall to set at center.
(17) Key setting.
preset mode (set finish) set at
: a). “HR” Icon: off.
b). “KEY” mark: on.
.
ViewSonic Corporation
27
Confidential – Do Not Copy
A
9
0f+-1
Summary of Contents for A90f+ 1
Page 57: ...12 PCB Layout ViewSonic Corporation 54 Confidential Do Not Copy A90f 1...
Page 58: ...VIDEO PWB 0414 ViewSonic Corporation 55 Confidential Do Not Copy A90f 1...
Page 59: ...KEY CONTROL PWB 0488 ViewSonic Corporation 56 Confidential Do Not Copy A90f 1...
Page 60: ...MAIN BOARD 13 Schematic Diagrams ViewSonic Corporation 57 Confidential Do Not Copy A90f 1...
Page 61: ...VIDEO ViewSonic Corporation 58 Confidential Do Not Copy A90f 1...
Page 62: ...KEY CORTROL ViewSonic Corporation 59 Confidential Do Not Copy A90f 1...
Page 63: ...POWER SUPPLY CKT ViewSonic Corporation 60 Confidential Do Not Copy A90f 1...
Page 64: ...MCU CONTROL CKT ViewSonic Corporation 61 Confidential Do Not Copy A90f 1...
Page 65: ...Time Base DeflectionCKT ViewSonic Corporation 62 Confidential Do Not Copy A90f 1...
Page 66: ...H V DYNAMIC FOCUS CKT ViewSonic Corporation 63 Confidential Do Not Copy A90f 1...
Page 67: ...14 Exploded Diagram ViewSonic Corporation 64 Confidential Do Not Copy A90f 1...