Auto Test BST-380, User Manual, Page: 23 / 28

3.8.13 Screen Light Adjustment
This function is to adjust the screen backlight brightness for power saving mode and
for a clear view of the displayed characters under sunlight.
The brightness range is adjustable from 1 to 4. Default brightness value is 2. Press
the UP/DOWN key to set. After successful setup, it displays “OK” for 2 seconds, then
returns to the previous interface.
3.8.14 Set Printer Definition
This function is to adjust the clarity of the printed characters to ensure a good printing
effect under various environments and conditions.
The definition range is adjustable from 1 to 9. The default clarity value is 4. Press the
UP/DOWN key to set. After successful setup, it displays “OK” for 2 seconds, then
returns to the previous interface.
NOTE: The printer definition is inversely proportional to the printing speed. Also, higher
definition printing requires more power.
3.8.15 Standby Power Function
This function is to set standby power, which is OFF by default.
For some luxury vehicles, the ECU must be powered on. Once powered off, the ECU will
be automatically locked. The standby power function offers ECU power for a short time
when the vehicle battery needs to be replaced to avoid automatic lock. When standby
power function is ON, the tester will use the internal 9V battery to supply power after the
clamps are connected “Red to Anode & Black to Cathode” with the battery connection
cable.
CAUTION:
When the standby power function is ON, do not touch the Red & Black
clamps to each other to avoid a short circuit. After using, press the Return key, the tester
will automatically turn off the standby power.
OPTION SELECT
13. SCREEN LIGHT
ADJUSTMENT
OPTION SELECT
14. PRINTER
DEFINITION SET
OPTION SELECT
15. STANDBY
POWER
NOTE:
The 9V battery, due to its small capacity, can only supply power for short
time.Before using the tester as standby power, make sure the internal 9V battery has
sufficient capacity, and try to complete the battery replacement within a short time to
avoid any automatic lock caused by power off.