Table of Contents
Advertisement
Adjustment Procedures
[A/D Pre-Amplification Circuit]
1. A/D Convertor
Measuring
---
instrument
Test point
---
EXT trigger
---
Measurement
---
range
XGA signal
Input signal
(White 100%, No. 01)
Input terminal
COMPUTER IN terminal
Adjustment purpose
To set amplitude of a video signal to be entered to A/D converter.
Symptom when
Incorrectly displayed white portions.
incorrectly adjusted
* Enter the adjustment command in capital alphanumeric letters.
1. Connect this PROJECTOR with a personal computer (with Microsoft
Windows
2. Start Microsoft
3. Start the communication program [Hyper Terminal] in Microsoft
to open the window. (For setting, refer to Hyper Terminal setting on P.2)
RGB
4. Supply an XGA signal (White 100%, No. 01).
5. Enter [00 ~ 5] (A/D adjustment command) to the Hyper Terminal window and
automatic adjustment will start.
6. The return command [00 ~ 5111] is displayed on the Hyper Terminal Window
after the adjustment. The last 3 figures of the return command indicate the
result of adjustment and each figure corresponds to R, G, and B. in order. The
figure, 1 means that the adjustment has been successful. The figure, 0 means
that the adjustment has been failed caused by faults on PCBs, wrong signals
or wrong input selection.
95 Operating System). (Refer to the figure on P.1)
Windows
95 in the personal computer.
- 3 -
Windows
95
Advertisement
Table of Contents
