Panasonic PT-TW230E

-69-
IC Block Diagrams
● MR4010 <Power OSC, IC631>
R
Q
S
GND Emitter / OCL
VINVCC
Collector
Start-up circuit UVLO
comparator
Start-up circuit
Soft drive circuit
OCP threshold comparator
Burst mode OCP threshold comparator
Restart timer
Latch circuit reset
comparator
UVLO comparator
V
UL
VCC(start)
/VCC(stot)
V
CC(startup off)
/VCC(startup on)
VTH(OCL)
VTH(burst limit)
Q1
V
OVP
Vref
IF/B
OVP comparator
Thermal Shutdown circuit
Zero current detection
circuit
Tu rn-on dead timer
Standby circuit
ON width timer
S
Q
R
+
-
+
-
-
+
-
+
-
+
-
+
1
2
3
4
-
+
7 9
5
Z / C
F / B
● NJW1156<Audio Selector,IC5001>