Adjustments - Sony SDM-N80 Service Manual

Connect the personal computer, monitor, and signal generator as shown below, and control the monitor.
Computer for jig
• Adjustment conditions
(1) impressed voltage:10%UP than rating voltage
(2) time: 30 minutes or more
(3) temperature: 25 3˚C
(4) Brightness: Aging mode
• Adjustment of preset mode
Check the screen in the following five modes of the preset frequencies.
< Signal mode >
1. MODE 0 (640x480 60Hz)
2. MODE 11 (800x600 85Hz)
3. MODE 18 (1024x768 85Hz)
4. MODE 29 (1280x1024 60Hz)
5. MODE 40 (1600x1200 60Hz)
1. Generate the crosshatch signal.
2. Observing the ends, check that both ends can be seen or a white line at the end is not far away
from the edge of display area.
Note: Deviation up to 2 dots is allowable.
OK if either left or right side satisfies the above specification.
SECTION 2

ADJUSTMENTS

Digital signal
generator
(VG-828, etc)
USB mouse
Analog signal
generator
(VG-819, etc)
to INPUT 1
to INPUT 2
• Adjustment of white balance (Analog input 1)
[Measuring instrument position]
H/ L side:
C/ O side:
USB checker
Audio input
to USB upstream
H Center
V Center
H Center
V Center
SDM-N80 (E) 2-1