Dell 2407WFP Power Supply Repair Manual

120F ±20% 450V, 105°C ripple 740mA @120Hz

15V

Semiconductor Q602 Q603 Q653 Q654

Type PNP transistor 40V, 350mW NPN transistor 40V, 350mW N-channel FET PNP transistor 40V, 350mW

Series 2N3906S 2N3904S 2N7002K 2N3906S

Maker KEC KEC

KEC KEC

KEC

Q656 Q701 IC702

NPN transistor 40V, 350mW NPN transistor 40V, 350mW  Adjustable precision Zener shunt regulator 

2N3904S 2N3904S LM431

IC603 IC602 IC605 IC652

Sensitive gate silicon controlled rectifier Optocoupler  Optocoupler  Optocoupler 

MCR100 LTV-817 LTV-817 LTV-817

Lite-ON Lite-ON Lite-ON

Q601 Q651

N-channel power MOSFET 800V 6A N-channel silicon power MOSFET 600V 12A

2SK3548 2SK3502

Fuji Electric Fuji Electric

IC601 IC651

PWM current-mode controller Power factor corrector

Package SOT-23 SOT-23 SOT-23 SOT-23 SOT-23 SOT-23 SOT-23 TO-92

TO-220AB TO-220FP

NCP1200A ON Semicondictor  SO8 L6561 ST Microelectronics SO8

Resistor   TR601 1.5-330

±%

W 

R607 R615 R670

68k 0.22 0.22

5 5 5

2 1 1

R601

1.00M

1

½

R603 R604 R605 R608 R609 R657 R658 R660 R661 R667 R671

10k 1.20M 1.20M 1.00M 1.00M 1.00M 1.00M 1.00M 1.00M 68k 499k

5 1 1 1 1 1 1 1 1 5 5

¼ ¼ ¼ ¼ ¼ ¼ ¼ ¼ ¼ ¼ ¼

R669 R668 R662 R665 R666 R672 R673 R659 R663 R664 R674 R656 R678 R606 R625 R626 R614 R612 R623 R619 R610 R613 R611 R627 R617 R620 R622 R621 R624

1k 30 511k 47 24.9k 232k 232k 20.0k 205k 3.01k 8.25k 10k 10k 150k 10k 10k 18k 47 4.7 18k 18k 1.0k 150 100 10k 10k 10k 10k 10k