Inspection On Input Signal Identification - NEC MultiSync LCD2080UX -BKA Service Manual

1.5.8 Inspection on Input Signal Identification

Purpose of inspection: Confirming that a normal display is obtainable for each signal input.
1) According to the table below, make setting of the input connector and the signal, and enter a signal input.
Item No.
1 INPUT 1
2 INPUT 1
3 INPUT 1
4 INPUT 1
2) When a screen is displayed, visually check whether the display is free from abnormality.
(Freedom from any extreme displacement in position, size, and phase, flickering in the screen, and
extreme color deterioration)
3) Change over the input port to the ANALOG INPUT of INPUT2.
According to the table below, make setting of the signal, and enter a signal input.
Item No.
1 INPUT 2
2 INPUT 2
4) By the signal 34, it checks that OSM of "OUT OF RANGE" is displayed.
5) Return the setting of input port to INPUT1 and change the connection with the VG-819 to the
COMPOSITE mode. (Pull out the BNC connectors H and V on the VG-819 side and connect the H cable
to the CS connector.)
6) According to the table below, make setting of the signal, and enter a signal input. Make confirmation in
the same manner as described in 2) above.
Item No.
1 INPUT 1
Unless otherwise specified, the display pattern is as shown in the initial screen,
conforming to 1.2.8 [Inspection Mode Setting].
--- Inspection of DVI-I (Analog) Input ---
Input Inspection signal No.
--- Inspection of D-SUB (Analog) Input ---
Input Inspection signal No.
--- Inspection of COMPOSITE Input ---
Input Inspection signal No.
SYNC
7 SEPARATE
11 SEPARATE
31 SEPARATE
32 SEPARATE
SYNC
32 SEPARATE
34 SEPARATE
SYNC
13 COMPSITE
5-11
Remark
CLK Min
Fh Min
Fv Min
Fh Max
Fv Max
Recommend/CLK Max
Remark
Recommend/CLK Max
Out of Range
Remark
Vsync width Max