User's Manual

4
The convergence coils are combined with deflection yoke, they are also driven by DC amplifiers.
Via OSD menu, two control functions H-convergence and V-convergence can be selected to adjust
the convergence of CRT by using digital control.
E. MICRO-CONTROLLER & DDC2B
GENERAL DESCRIPTION:
The Weltrend WT62P2 micro-controller is used to control all required functions of monitors, the
preset data are stored in EEPROM M24C16,
the most important point is used “ interrupt “ to do
the fast detect of mode change, then the MCU deliver a good protection behavior for horizontal
output transistor during mode change. Meanwhile, the DDC2B function is by software control.
HARDWARE DEFINITION:
a) KEY BOARD
There are five keypads at the front of monitor for the OSD control.
- OSD function key:
- Enter
Push it, to confirm the entrance or exit from the OSD window
- UP
To select the parameters which are chosen from OSD.
- DOWN
To select the parameters which are chosen from OSD.
- RIGHT
To adjust the parameter which are chosen from OSD to right side
- LEFT
To adjust the parameter which are chosen from OSD to left side
b) OSD will disappear and SAVE AUTOMATICALLY after non-operation.
c) Software will control the DPMS according to the SYNC status.