Power 1 Block Diagram - Sony DVP-PQ2 Service Manual

3-7. POWER 1 BLOCK DIAGRAM

SWITCHING REGULATOR
( DPSN-20CP (PQ2: U2,CA2,MX2) )
DPSN-20CP-2 (PQ2: EC1,EC2,CEK)
(SEE PAGE 4-41, 4-45)
AC IN J1
D1A-1D
F1
FL1, 2
1
LINE
2
FILTER
IC1
SWITCHING
CONTROL
05
D411 L410
T1
D401 L401
F101
D101 L101
(PQ2: U2,CA2,MX2)
F401
(PQ2: EC1,EC2,CEK)
F301
L301
D301
Q1
D303
D201
IC2
PHOTO COUPLER
IC303
SHUNT REG
3-13
J2
+11V (AUDIO)
11
Q401
4
SW+11V
•
5
EVER+3.3V
Q101
+5V
10
Q301
SW+3.3V
6
IC302 , Q302
EVER+3.3V
+3.3V REG 9
Q402
P-CONT
POWER 1
CONTROL
IF-106 BOARD
(SEE PAGE 4-29)
CN810
CN801 PS801
11 2
9 4
10 1
L802
CN809
2
SW+11V 4
• 5
5
6 4
IC801
+1.8V REG
1 VIN VOUT 3 1
CN807
7
IC800
RESET
IC804
IF CON
9 R42 (AIN2)
INTERFACE
1 CONTROL
(SEE PAGE 3-11)
SW-406 BOARD
(SEE PAGE 4-33)
CN901
EVER +3.3V
3 3
3-14
DVP-PQ2
AU+11V
POWER 2
(SEE PAGE 3-15)
EVER+3.3V
AI+5V
+5V
+11V
+3.3V
POWER 2
(SEE PAGE 3-15)
+1.8V
3.3V MNT
IC900
REMOTE
COMMANDER
RECEIVER
D901
I/1