Compaq MV7540, Service Manual

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HP MV7540
14
5-3 Transistor & Diode Circuit
Location Circuit Function Description
D901~D904 Bridge Rectifier for AC Source
D910 Clamp Diode for snub CKT
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
IC901 Power IC for Switching Power Control. (Build-in MOS FET)
Q907, Q908 Use for Power Saving to Cut-off 6.3V Supply Voltage
Q909, Q910 Use for Power Saving to Cut-off 12.5V Supply Voltage
Q912, Q920 Push-Pull Topology to Drive Q911
Q913 Degaussing Switcher Transistor
Q904 5V Regulator Transistor
Q403 HOR. Driver Transistor
IC403 Horizontal s correction control MOSFET(Four in one)
Q404, Q405 As Differential Amp. to Drive Q406
Q406 Transistor for H-Size Control
Q705 Brightness Control CKT
Q742 V-Dynamic focus CKT