Panasonic DMR-EX77EG Service Manual page 57

IC1501
RESET
IC-DETAIL BLOCK DIAGRAM
OUT
5
VCC
-
+
Vref
GND GND
2 3
IC1506
DR +5V SWITCHING REGULATOR
IC-DETAIL BLOCK DIAGRAM
VIN
2
ON: H
1 ON/OFF REG.
DRIVE AMP
PROTECTION VREF
GND
3
IC1508
SWITCHING IC
IC-DETAIL BLOCK DIAGRAM
8 7 6 5
CS EXT GND FB
0.8V
CONTROL LOGIC
LEVEL
+ -
SHIFT
CNT.
COMP
- - + +
V5
UVLOcomp
+
-
VREF
VIN V5/PWON VREF/SS CC
1 2 3 4
IC1510
TU +5V SWITCHING REGULATOR
IC-DETAIL BLOCK DIAGRAM
4
IC1520
ANA +5V SWITCHING REGULATOR
IC-DETAIL BLOCK DIAGRAM
VOUT
4
SENSE
5
IC1521
ANA +3.3V SWITCHING REGULATOR
IC-DETAIL BLOCK DIAGRAM
8
VIN
VOUT
1
DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB
VIN VOUT
4 5
IC
ON/OFF ADJ
3 1
GND
2
5 1
VOUT VIN
IC
NR GND H :ON
4 2 3
7 6 5
NC NC CONT
DRIVER BIAS
CURRENT THERMAL
LIMITTER SHUTDOWN
REFERENCE
NC CN GND
2 3 4
57
IC7401
PS +11.6V SWITCHING REGULATOR
IC-DETAIL BLOCK DIAGRAM
IC
VIN ON H VOUT SENSE
1 2 3 4
IC7402,IC7403
BOOSTER +5V SWITCHING REGULATOR,
PS +5V SWITCHING REGULATOR
IC-DETAIL BLOCK DIAGRAM
5 1
VOUT VIN
IC
NR GND H :ON
4 2 3
IC1501 Detail Block Diagram
IC1506 Detail Block Diagram
IC1508 Detail Block Diagram
IC1510 Detail Block Diagram
IC1520 Detail Block Diagram
IC1521 Detail Block Diagram
IC7401 Detail Block Diagram
IC7402 Detail Block Diagram
IC7403 Detail Block Diagram
DMR-EX77EG/EC/EC1/EB,EX87EG/EC/EC1/EB IC-Detail Block Diagram
GND
5