Sharp DV-L70S Service Manual page 51

9-28. IC9001 TL1451AC
Vref=2.5V
(16)
+
(3)
-
(4)
(5)
Error Amp2
(12)
(14) +
(13)
-
(15)
(9)
VCC
Reference
Voltage
2.0V
Error Amp1
1.4V
+2.5V
+
+
-
Vref/2
Vref
S R
Latch U.V.L.O.
(1)
Trlangle
Oscillator
Short Circuit
Protection
Comparator
Vref Vref
R
(6)
51
(2)
PWM Comprator1
Output1
Output2
PWM Comprator2
GND
(11) (8)
DV-L70S
DV-L70BL
DV-L70W
(7)
(10)