Schematic Diagram - Sk1 Sub Main Board (2/2) - Sony SA-WX9000F Service Manual

4-3.

SCHEMATIC DIAGRAM - SK1 SUB MAIN Board (2/2) -

1 2
SK1 SUB MAIN BOARD
A
B
SUB_28.5V
C PVDD
12V
A5V
>001S
A_GND
PVDD_GND
SK1 SUB MAIN
BOARD D_GND
(1/2)
PCONT
(Page 18)
LED_UNSW3.3V
D
UNSW3.3V
D3.3V
E
F
SA-WX9000F/WXF9000
• See page 20 for Waveforms. • See page 24 for IC Block Diagrams.
3 4
(2/2)
FB8001
IC8002
+5V REGULATOR
IC8002
MM3411A50URE
C8017 C8016
4.7 1
CL8006
Q8001
3.3
6
NTJS3151PT1G
5
2
4 3.3
1 S
R8012
10k
3
0
R8011
0
Q8000, 8001
B+ SWITCH
0
3.3
Q8000
LTC014EUBFS8TL
C8008
R8028 1
0
JL8001
5 6
IC8001
D8001
DZ2J062M0L
+12V REGULATOR
IC8001
SI-3010KM-TLA
CL8004
R8026
0 C8014
1 R8018
100k
R8020
10k
R8022 C8010
10k 100
16V
R8005
10k
L8002
2.2uH
4
R8010
33k
CL8003
3.3
L8000 7.7
4.7uH
5
C8005
0.1
CL8002
C8011 C8003 C8002 R8006
470 22 22 2.2k
6.3V
19 19
7 8 9
C8012 C8013 C8009 L8001
0.1 0.1 47 2.2uH
50V
IC8000
DC/DC CONVERTER
IC8000
RT7272BGSP
1 8 28.1
R8000
SW VIN
100k
2 7 0.8
BOOT RLIM
3 6 0.9
EN COMP
4 5 0.8 R8002
C8001
GND FB 1k
0.0022
R8003 R8004
4.7k 1.5k
SA-WX9000F/WXF9000
CL8001
C8000
10
C8004
10
R8001
0
R8009
15k