Iiyama Vision Master Pro 451, Service Manual

Page: 6 / 74

1. SET-UP ADJUSTMENTS
The following adjustments should be made when a complete realignment is required or a new picture tube is
installed.
<Required measuring equipment>
<Preparation>
Signal generator (Programmable video generator)........................ Leader 1604A
DC voltmeter (300V DC range)
Note: Digital multimeter can also be used.
High voltage probe (0-30kV DC)
Color analyzer.......................................................................... Minolta CA-100
Photometer............................................................................. Minolta LS-100
Electric field meter.................................................................... Combinova EFM 100
Scale (Two 50cm scales put together so that no visual aberration occurs.)
Frequency counter
Digital wattage meter
Landing meter.............................................................................. LSS LND-070 or 072
Degausser
Headphones
CD player
Audio-LR confirmation equipment
USB compliant computer
Interface adapter (Iiyama handmade)
Short-connector (Iiyama handmade)
Place the monitor without tilting.
Connect the signal cable from the signal generator to the monitor.
Face the CRT screen to east so as not to be influenced by magnetic force. 1.
2.
3.
4.
5.
6.
7.
- 1 -
Note: This monitor should be checked and adjusted by connecting it to a signal generator, then entering
and running the timing charts both below and of Chapter 2.
R
13.704
19.416
4.442
8.964
Q
0.444
0.455
0.508
0.530
O
14.285
20.000
5.000
9.524
D
27.40
25.68
9.40
5.41
S
0.034
0.032
0.012
0.008
P
0.103
0.097
0.038
0.022
E
0.69
0.77
0.59
0.43
Vertical (msec)
Horizontal (µsec)
C
3.43
3.34
1.64
1.03
B
2.74
2.57
1.06
0.60
A
34.26
32.36
12.69
7.47
V
P
P
P
P
Sync polarity
H
P
P
P
P
Resolution*
640×400
800×600
320×350
1600×1200
Comp
–
–
–
–
Sync
on
green
–
–
–
–
fH
(kHz)
29.2
30.9
77.8
133.9
*
The resolutions are only for your reference when using Leader 1604A.
Turn ON the Power Switch, and degauss the entire screen with degausser.
è
See "EXTERNAL DEGAUSS".
Perform adjustment by setting the brightness to center and the contrast to maximum, except where
specifically indicated.
Receive MODE 5 and turn ON the Power Switch. Perform adjustment after a warm-up of at least an
hour.
Adjustment data is automatically saved in the memory when the on screen display disappears, when
another signal is received.