4-3 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
Q901
MOS FET for Switching Power Control.
Q907, Q908
Use for Off-Mode to Cut-off 6.3V Supply Voltage
Q909, Q918
Use for Standy-By or Suspend Mode to Cut-off 12V Supply Voltage
Q912, Q920
Push-Pull Topology to Drive Q911
Q913
Degaussing Switcher Transistor
Q921
5V Regulator Transistor
Q701
Turn-on at Power ON/OFF and Change Mode to Protect Hor.Block
Q402
HOR. Driver Transistor
Q426
Horizontal s correction control MOSFET
Q404, Q405
As Differential Amp. to Drive Q406
Q406
Transistor for H-Size Control
Q705
Brightness Control CKT
ViewSonic Corporation
Confidential – Do Not Copy
E70f-5_E70fB-5_E70fSB-5
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