Electrical Adjustments
28
M32 107T4 GS_3
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0. General
5. To access factory mode
5.1 Turn off monitor (don't turn off PC)
5.2 Press "
" and "
" simultaneously on the front control
panel,then press "
",wait till the OSD menu with characters
M32 107E/T4P V2.00 20020523 (below OSD menu)" come on the
screen of monitor.
5.3 If OSD menu disappears on the screen of monitor, press "
"
again (anytime), then the OSD menu comes on the screen again.
5.4 Using "
" : to select OSD menu.
5.5 Using "
" : to increase or decrease the setting.
5.6 Using "
" to access/confirm the selection.
To leave factory mode
5.7 After alignment of factory mode, turn off monitor (if you do not
turn off monitor, the OSD menu is always at the factory mode),
then turn on monitor again (at this moment, the OSD menu goes
back to user mode).
When carry-out the electrical settings in many cases a video signal
must be applied to the monitor. A computer with :
- ATI GPT-1600 (4822 397 10065), Mach 64 (up to 107kHz)
are used as the video signal source. The signal patterns are selected
from the "service test software" package, see user guide 4822 727
21046 (GPT-1600).
0.1 This monitor has
as below.
8 factory-preset modes
720 x 400 31.5 kHz/70 Hz
1024 x 768 68.7 kHz/85 Hz
640 x 480 31.5 kHz/60 Hz
640 x 480 43.3 kHz/85 Hz
800 x 600 46.9 kHz/75 Hz
800 x 600 53.6 kHz/85 Hz
1024x768 60.0 kHz/75 Hz
1280 x 1024 64.0kHz/60Hz
14 factory-preload modes as below
640 x 350 31.5 kHz/70 Hz
800 x 600 48.1 kHz/72 Hz
640 x 350 37.9 kHz/85 Hz
800 x 600 63.9 kHz/100 Hz
640 x 480 37.5 kHz/75 Hz
832 x 624 49.7 kHz/75 Hz
640 x 480 37.9 kHz/72.8 Hz
1024 x 768 48.4 kHz/60 Hz
640 x 480 50.6 kHz/100 Hz
1024 x 768 56.5 kHz/70 Hz
720 x 400 37.9 kHz/85 Hz
1152 x 864 67.5 kHz/75 Hz
800 x 600 37.90kHz/60Hz
1280 x 960 60.0 kHz/60 Hz
1. With normal VGA card:
If not using the ATI card during repair or alignment, The service
engineer also can use this service test software adapting with normal
standard VGA adaptor and using standard VGA mode
640 x 480,
31.5 kHz/60 Hz (only) as signal source.
2. AC/DC Measurement:
The measurements for AC waveform and DC figure is based on 640 x
480 31.5 kHz/60 Hz resolution mode with test pattern "gray scale".
Power input: 110V AC
3.Monitor the following auxiliary voltages.
SOURCE ACROSS 7114 Pin and GRN +5 V
+/- 0.25 VDC
SOURCE ACROSS C2155
+6.0 V
+/- 0.2 VDC.
SOURCE ACROSS C2153
+12.0V +/- 1.0 VDC.
SOURCE ACROSS C2154
- 12.0V +/- 1.0 VDC.
SOURCE ACROSS C2151
+94.0V +/- 1.5 VDC.
SOURCE ACROSS C2609
- 181V
+/- 10.0 VDC
6.1 Alignment of primary geometry
6.1.1 Apply Timing 7 (64KHz/60Hz, 1280x1024) with
black video signal, set V-position at 50%, set H and V -
size for visible raster edges at all sides.(RGB cut- off can
be increased temporarily to make raster visible. After
adjustment, restore RGB cutoff to original values.) Slide
switch1603 for centered raster in horizontal direction.
Adjust V
-
offset (I
2
C) for centered raster in vertical
direction.Apply Timing 8 (68.7kHz / 85Hz)with
crosshatch signal and start geometry alignment.
6.1.2
Adjust the Horizontal Size to 306mm.
6.1.3
Adjust the Horizontal Position for centered video.
6.1.4
Adjust the Vertical Size to 230 mm.
6.1.5
Adjust Vertical Position for centered video
6.1.6
Adjust picture tilt for correct TOP/BOTTOM lines.
(Picture tube should be mounted without tilt w.r.t. cabinet)
6.1.7
Adjust pincushion to get optimum vertical line.
6.1.8
Adjust trapezoid to get optimum vertical line.
6.1.9
Adjust balanced pincushion to get optimum vertical line.
6.1.10 Adjust the parallelogram to get optimum vertical line.
6.1.11 If needed, adjust the top / bottom corner control to
get optimum corner geometry.
Top and bottom corner only affect top
and bottom 60mm of the vertical lines.
(6.1.7, 6.1.8, 6.1.9 and 6.1.10 may need to be readjusted.)
6.1.12
Store the adjusted result and exit OS D.
(The values for pincushion, trapezoid, balance
pincushion and parallelogram can be copied to
the other pre - set modes to shorten alignment time.)
6.2
Other pre-set mode geometry adjustment
Use following procedure for all pre -set modes
(except 68 .7kHz/85Hz)(Timing Table 1 - 8)
6.2.1
Adjust the Horizontal Size to 306mm.
6.2.2
Adjust the Horizontal Position to center position.
6.2.3
Adjust the Vertical Size to 230 mm.
6.2.4
Adjust the Vertical Position for correctly ce ntred vertical video.
6.2.5
Adjust pincushion to get optimum vertical line.
6.2.6
Adjust trapezoid to get optimum vertical line.
6.2.7
Adjust balanced pincushion to get optimum vertical line.
6.2.8
Adjust the parallelogram to get optimum vertical line .
(6.2.5, 6.2.6, 6.2.7 and 6.2.8 may need some iteration.)
3.2.2
Store the set result and exit OSD.
6.3
Other pre -load modes can be visible inside the bezel.
SOURCE ACROSS C2152 ( + to Gnd ) +190 V +/- 2.0 VDC
4 General conditions for aging and alignment
4.1 Aging/burn-in:
Use low mains AC supply (90Vac) for monitor first
power on test.
Pre - adjust the Focus till cross hatch pattern can be
clearly visible then enter the aging mode. (Press both
left and right keys of brightness then switch
-
on the
monitor w/o signal connected)
4.2
During all alignments, supply a distortion free AC mains voltage
to set via an isolating transformer with low internal impedance.
4.3
All measurements are carried out at nominal mains voltage,
unless otherwise stated.
4.4
Align in pre
-
warmed condition, at least 30 minutes warm
-
up with nominal light output.
4.5
Purity, geometry and subsequent alignments should
be carried out in magnetic cage
with correct magnetic field.
Northern Hemisphere: H = 0, V = 450 mG, Z = 0
Southern Hemisphere: H = 0, V =
-500 mG, Z = 0
Equatorial Support
: H = 0, V =
0 mG, Z = 0
4.6
All volta ges are to be measured or applied with
respect to ground , unless otherwise stated. Attention
: Not all Heatsinksare GND, avoid using heatsinks as ground.
4.7
The white balance and purity has to be adjusted
in dully lighted room.
4.8
All alignments have to be done in a room with a
temperature of 25
±
10
°
C.
MODEL SELECT
M32 107E/T4P V2.00 20020523
Factory
Mode
Indicator