Panasonic DMR-EH55EC Service Manual page 55

IC1505
XSW +3.3V SWITCHING REGULATOR
IC-DETAIL BLOCK DIAGRAM
Vin Vout
1 5
IC
CONT
3 NC 4
GND
2
IC1506
DR +5V SWITCHING REGULATOR
IC-DETAIL BLOCK DIAGRAM
VIN
2
ON: H
1 ON/OFF REG.
DRIVE AMP
PROTECTION VREF
GND
3
IC1507
XSW +5.2V SWITCHING REGULATOR
IC-DETAIL BLOCK DIAGRAM
8 7 6 5
VIN CONT
DRIVER BIAS
REFERENCE
CURRENT
LIMITTER
THERMAL
SHUTDOWN
VOUT CN GND
1 2 3 4
IC1510
TU +5V SWITCHING REGULATOR
IC-DETAIL BLOCK DIAGRAM
IC
VIN H :ON VOUT NC GND
1 2 3 4 5
IC1520
ANA +5V SWITCHING REGULATOR
IC-DETAIL BLOCK DIAGRAM
5 1
VOUT VIN
VOUT
4
IC
NR GND H :ON
SENSE
5 4 2 3
IC1522
RESET
IC-DETAIL BLOCK DIAGRAM
VOUT
5
VDD
-
+
Vref
GND CT
2 3
55
IC1521
ANA +3.3V SWITCHING REGULATOR
IC-DETAIL BLOCK DIAGRAM
8 7 6
VIN NC NC
DRIVER BIAS
CURRENT THERMAL
LIMITTER SHUTDOWN
REFERENCE
VOUT NC CN
1 2 3
IC7401
PS +11.6V SWITCHING REGULATOR
IC-DETAIL BLOCK DIAGRAM
IC
VIN ON H VOUT SENSE GND
1 2 3 4 5
4
DMR-EH55EC / DMR-EH55EP / DMR-EH56EG
IC7402
BOOSTER +5V SWITCHING REGULATOR
IC-DETAIL BLOCK DIAGRAM
5
5 1
CONT
VOUT VIN
IC
NR GND
H :ON
4 2 3
GND
4
IC7403
PS +5V SWITCHING REGULATOR
IC-DETAIL BLOCK DIAGRAM
8 7 6
VIN
DRIVER BIAS
REFERENCE
CURRENT
LIMITTER
THERMAL
SHUTDOWN
VOUT CN
1 2 3
IC1505 Detail Block Diagram
IC1506 Detail Block Diagram
IC1507 Detail Block Diagram
IC1510 Detail Block Diagram
IC1520 Detail Block Diagram
IC1521 Detail Block Diagram
IC1522 Detail Block Diagram
IC7401 Detail Block Diagram
IC7402 Detail Block Diagram
IC7403 Detail Block Diagram
DMR-EH55EC/EP,EH56EG IC-Detail Block Diagram
5
CONT
GND
4