BenQ Q7T3-FP737S Service Manual page 123

Q7T3 (CPT panel) LCD Monitor Service Guide
control unit, it controls all the functions of this interface board, just like the OSD display setting,
the adjustable items, adjusted data storage, the external IIC communication, support DDC2B.
3.) EEPROM: We use 24C16 to store all the adjustable data and user settings.
4.) FLASH ROM: To stored the source code which is accessed by MCU to run program.
A-2.) Power board diagram:
EMI Filter
PWM controller
#1 EMI Filter
This circuit (fig. 2) is designed to inhibit electrical and magnetic interference for meeting FCC,
VDE, VCCI standard requirements.
Rectifier and Isolation power
filter transformer
Switching element
Circuit Operation Theory
Rectifier and filter
Rectifier and filter
Feedback Isolation
Fig.1
Audio Amp and
Pre-Amp
Inverter circuit
LDO regulator
3