Acer AF715 Series Service Manual page 51

IC902 TL431
REFERENCE R +
-
2.5Vref
INPUT 1
STARTING
CIRCUIT
Feedback
Input
V
Oscillator
Capacitor(C
Current Sense
Input
IC905
TL431
K CATHODE
A
ANODE
IC904
LM7812
CURRENT
GENERATOR
REFERENCE ERROR
VOLTAGE AMPLIFIER
IC906 MC33260
1
control
2
)
3
T
4
50
IC102
IC903 PC123/SFH615
ST24W04
PRE 1
E1 2
E2 3
VSS 4
SERIES
PASS
ELEMENT
SOA
PROTECTION
THERMAL
PROTECTION
V
8
CC
Gate Drive
7
Gnd
6
Synchronization
5
Input
8 VCC
7 MODE/WC
6 SCL
5 SDA
2 OUTPUT
3 GND