Sanyo DVD-SL25 Service Manual page 23

IC BLOCK DIAGRAM & DESCRIPTION
IC483 KIA431A(Votage CTL)
Reference
(R)
2.5Vref
IC490 STR-G6351 (Switching Regulator)
V
IN
4
UVI.O
PWM Latch
OSC
Terminal No. Symbols
1
2
3
GND
4
5 OCP/F.B/Tri
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Cathode
+
(K)
-
Anode
(A)
REG
Latch Delay
Internal Blas
5 Q
K
DCP Comp.
+
Icanl
-
Description
D Drain terminal
S Source terminal
Ground terminal
V Power Supply terminal
IN
Overcurrent/Feedback/
Latch trigger terminal
OVP
+
-
TSD
+
-
Tri
+
-
REG
Drive
Functions
MOSFET drain
MOSFET source
Ground
Input of power supply for control circuit
Input of overcurrent detection signal/
constant voltage control signal/
latch circuit operation signal
- 22 -
1
D
2 S
OCP/FB/Tri
5
GND
3