Acer 41AS551V AC511 Manual de servicio - Página 12

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5-3 TRANSISTOR & DIODE CIRCUIT

LOCATION

D901 ~ D904

D910

D919

D922

D923

D925

D927

D929

D930

Q907

Q909, Q910

Q912, Q920

Q913

Q921

Q401

Q402

Q407, Q408

Q409

Q411, Q410

Q404, Q405

Q406

Q703

Q704, Q705

Q601, Q707

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CIRCUIT FUNCTION DESCRIPTION

Bridge Rectifier for AC Source

Clamp Diode for Snubber CKT

Rectifier for Output Voltage

Forward Bias when Q403 Turn-off to Protect B+ Block CKT

B+ Feed Back Rectifier from F.B.T Pulse

Use for Off-Mode to Cut-off 6.3V Supply Voltage

Use for Standy-By or Suspend Mode to Cut-off 14.5V Supply Voltage

Push-Pull Topology to Drive Q911

Degaussing Switcher Transistor

5V Regulator Transistor

Turn-on at Power ON/OFF and Change Mode to Protect Hor.Block

HOR. Driver Transistor

As a Switcher for Horizontal s Correction CKT

H-Linear control transistor

Horizontal s correction control MOSFET

As Differential Amp. to Drive Q406

Darlington Transistor for H-Size Control

As a Switcher to Mute Screen

Brightness Control CKT

Blanking Signal output transistor