Table of Contents
Advertisement
(Error)
(Error)
Memorize Bright Level
Exit Automatic Adjustment mode
Enter Automatic Adjustment mode
Wait for 100 msec
NO
Time Base signal
at CPU pin 26 is High ?
YES
Preset BUS Data Outputs to eliminate beam
current: BRIGHTNESS 0/127*
1
, CONTRAST 0/64
Wait for 1 sec
Read A/D Input Voltage at CPU pin 30
NO
A/D Input Voltage
2
is in the range*
YES
Memorize A/D Input Voltage(Standard Voltage (A))
Change BUS Data Outputs for AUTO mode:
3
BRIGHTNESS 50/127*
, CONTRAST 64/64
Wait for 200 msec
Read A/D Input Voltage at CPU pin 30
YES
4
A/D Input Voltage*
< (A)-(20/128Vcc)
NO
Increase 1 step (1/63) of BUS Data Output for
Bright Level Adjustment
Automatic Bright Level Adjustment Program
*
1
... 0/127 = 0/63 for Bright Level Adjustment + 0/64 for Customer Control
?
*
2
... range is between 21/128 Vcc (0.82V) and Vcc (5.0 V)
*
3
... 50/127 = 0/63 for Bright Level Adjustment + 50/64 for Customer Control
*
4
... A/D Input Voltage { [Standard Voltage (A)] - [20/128 Vcc (0.39 V)] }
Wait for 70 msec
– 39 –
- Quick Links:
- Table of Contents
Hide quick links:
Advertisement
Table of Contents
