NEC MultiSync FP1350 Service Manual page 79

7-8.Maximun Brightness adjustment
1) Receive Signal 23.
2) Open Menu (S), TAG A "Color Preset No.1 9300K ".
3) Open Menu (S), TAG A "CONT.MAX.ADJ". Adjust "+", "-" SW so that the "window brightness" is 140(+0, -1)
2
cd/m .
4) Open Menu (S), TAG D "CONTRAST PRESET" and push "RESET" SW.
7-9.Contrast preset adjustment (B version only)
1) Receive Signal 23.
2) Open Menu (S), TAG D "CONTRAST PRESET".
3) Adjust "+", "-" SW so that the "window brightness" is 90(+0, -1) cd/m
8. Focus Adjustment
Signal:
PC Focus Check Pattern
* After maximum horizontal amplitude adjustment, maximum vertical amplitude adjustment, and video
adjustment are completed, perform this focus adjustment.
For steps of 9) , 10), 15), 16), adjust it with signal input through BNC using signal generator VG-819 or
alternate.
* "CONTRAST" of the user menu and "BRIGHTNESS" are set up.
BNC input
D-SUB input
As for 1)-3), it applies to A version only.
1) Receive Signal 23.
2) Open Menu (S), TAG D "CONTRAST PRESET".
3) Adjust "+", "-" SW so that the "window brightness" is 90(+0, -1) cd/m
4) Receive Signal 31.
5) Open Menu (S), TAG2 "H.SIZE", "V.SIZE","H.POSITION", "V.POSITION".
Adjust the picture size and position as listed below by "+", "-" SW.
Picture size
H: 396±1 mm
V: 297±1 mm
Picture Position
H: | XL
V: | XT
6) Open Menu (S), TAG1 "V.D.FOCUS".
Adjust the voltage at TP-DF on the SW/HV PWB to obtain the following values.
The waveform of the TP-DF on the SW/HV PWB is observed, and the amplitude of parabolic-wave of the
vertical period is adjusted to 185 ± 5Vp-p with "V.D.FOCUS".
Note: When measuring Vp-p, use a 100:1 probe with capacitance of approx. 2pF.
Signal: No.23 (1600*1200@85Hz) Window Pattern (H:33% V:33%)
Signal: No.23 (1600*1200@85Hz) Window Pattern (H:33% V:33%)
No.23 (1600*1200@85Hz) Window Pattern (H:33% V:33%)
No.31(1600*1200@60Hz) Cross Hatch Pattern "∃" Character Pattern
PC Excel Focus Check Pattern (1280*1024@85Hz)
Video Board: Millennium ||
Application: Excel (Microsoft)
Font: Arial
Font Size: 8
Character: ##&&%%$$##
:CONTRAST - PRESET
:CONTRAST - MAX.
| ≤ 1.0 mm
– XR
eft ight
| ≤ 1.0 mm
– XB
op ottom
2
.
BRIGHTNESS - PRESET
BRIGHTNESS - PRESET
2
5-38
.