AOC S761U, Service Manual, Page: 14 / 60

14
5-3 TRANSISTOR & DIODE CIRCUIT
LOCATION CIRCUIT FUNCTION DESCRIPTION
D901 ~ D904 Bridge Rectifier for AC Source
D910 Clamp Diode for Snubber CKT
D918, D919 Rectifier for Output Voltage
D922 Rectifier for Output Voltage
D923 Rectifier for Output Voltage
D925 Rectifier for B+ Supply
D929 B+ Feed Back Rectifier from F.B.T Pulse
Q901 MOS FET for Switching Power Control.
Q907, Q908 Use for Off-Mode to Cut-off 6.3V Supply Voltage
Q909, Q910 Use for Standy-By or Suspend Mode to Cut-off 14V Supply Voltage
Q912, Q920 Push-Pull Topology to Drive Q911
Q913 Degaussing Switcher Transistor
Q921 5V Regulator Transistor
Q401 Turn-on at Power ON/OFF and Change Mode to Protect Hor.Block
Q402 HOR. Driver Transistor
Q407, Q408 As a Switcher for Horizontal S Correction CKT
Q426 Horizontal s correction control MOSFET
Q404, Q405 As Differential Amp. to Drive Q406
Q406 Transistor for H-Size Control
Q705 Brightness Control CKT and as a Switch to Mute Screen.
Q741, Q742 V-Dynamic focus CKT
Q821 ~ Q823,
Q830 ~ Q832
Video DC Restoration control transistor