Service manual

3. DIAGNOSTIC CHECK
3.24 Service Manual BSM-4100
CHARACTER DRAW Check
This item checks the function of the character draw plane. Check the character
display and colors. The plane for character screen is prepared in 4 screens and the
check program displays one plane at a time.
Procedure to Execute the CHARACTER DRAW Check Program
1. To select the CHARACTER DRAW Check, touch the “CHARACTER DRAW
CHECK” key and select a plane.
2. When the program starts, it draws the green characters on the black plane.
Touch the “CHANGE BACK COLOR” key to reverse the plane color.
If you press the MENU key, you can change the display mode in order of
normal → blink → reverse → reverse/blink → normal.
3. By rotating the upper function dial, the displaying character size changes.
The displayed color can be changed by pressing the SILENCE ALARMS key.
4. To return to the CHARACTER DRAW CHECK screen, press the HOME key.
5. To return to the MANUAL CHECK MENU screen, touch the “RETURN” key.
If the screen has a wrong display, the MAIN board or LCD unit will be faulty.