Power Supply (1/2) Block Diagram - Panasonic SC-HC395EG Service Manual

10.4. POWER SUPPLY (1/2) BLOCK DIAGRAM

SMPS P.C.B.
IC1700 PC1702
FEEDBACK
SWITCHING
REGULATOR
3
FB/OLP 4 4
T1700
TRANSFORMER
D1708
VCC 2 6
S/OCP 1
5
D 5
D 6
D 7
D 8 3
D1703
2
P1751
AC INLET L1702 D1701
1 2 1
F1
Z1752
4 3
PRIMARY
IC1701
SHUNT
REGULATOR
QR1700,Q1700,Q1701
STANDBY CTRL P1700 CN1100 Burst SW
2
1 1
FEEDBACK
CIRCUIT
P1700 CN1100
PCONT3 PCONT3
1
2 2
D1700
19V P1700 CN1100 19V
7
5 5
P1700 CN1100
19V 19V
8
7 7
9
10
11
12
SECONDARY
IC1101
PCONT
PW M5R2VCC,
PW D5R7V, D1224
PW FL5V
4 EN SW(VOUT) 6
BOOT 1
19V
5 VIN FB 3
PW FL5V
IC1104
+5V SWITCHING
VOLTAGE
REGULATOR
19V PW USB 5V
2 VIN SW(VOUT) 3
BOOT 1
7 EN FB 5
D1113 D1112
QR1100
D1115
PCONT
IC1105
+12V VOLTAGE
REGULATOR
PW FL12V
19V
3 VIN
VOUT 1
5 CE ADJ 4
D1220
IC1109 D1104
+5V VOLTAGE
REGULATOR
19V PW BT5V
1 VIN VOUT 3
Q404
SWITCH
19V PW DAMP19V
1 S D 5
19V
QR400
2 S D 6
19V
3 S D 7
SWITCH D 8
4 G
58
MAIN P.C.B.
STBY CTRL
PCONT3
USB EN
PCONT
PW STBY3R3V
3.3V
IC1108
IC1106
+3.3V VOLTAGE
+1.5V VOLTAGE
REGULATOR
REGULATOR
PW STBY3R3V
PW STBY1R5V
2 VIN VOUT 3 4 VDD VOUT 3 1.5V
1 CE ADJ 4 1 CE
IC8002
RESET
NRST NRST
2 VIN VOUT 1
IC1103
+3.3V VOLTAGE
REGULATOR
PW 3R3V PW 3R3V
3 3.3V
VIN VOUT 2
PW M5R2VCC,PW D5R7V,PW FL5V
5V
PW USB 5V,PW 5V VBUS
5V
D6550
USB OVER CUR
USB OVER CUR
D1101
DC DET PWR
DC DET PWR
D1221
D1223 IC7230
+5V VOLTAGE
REGULATOR
PW BT5V 5V
5V
4 VDD VOUT 3
M VDET
PW DAMP19V
19V
SMPS CUT
SC-HC395EG,SC-HC397EB/EG POWER SUPPLY (1/2) BLOCK DIAGRAM
STBY CTRL
PCONT3
FROM
SYSTEM CONTROL
USB EN
PCONT
TO
NRST
SYSTEM CONTROL
PW STBY3R3V
1
PW 3R3V
2
PW M5R2VCC,PW D5R7V,PW FL5V
3
TO
SYSTEM CONTROL
PW FL12V
4
TO POWER SUPPLY
BLOCK (2/2)
TO
M VDET
SYSTEM CONTROL
FROM
SMPS CUT
SYSTEM CONTROL