Sony MHC-V21 - Deactivating the buttons on the unit (Child Lock)

MHC-V21/V21D
MHC-V21/V21D
4444
Ver. 1.1
6-13. PRINTED WIRING BOARD - IR Board -
• See page 36 for Circuit Boards Location.
•
: Uses unleaded solder.
6-15. PRINTED WIRING BOARD - SPK LED Board -
• See page 36 for Circuit Boards Location.
•
: Uses unleaded solder.
6-14. SCHEMATIC DIAGRAM - IR Board -
6-16. SCHEMATIC DIAGRAM - SPK LED Board -
1
A
B
C
D
E
2 3 4 5 6 78
CL4204
CL4203
CL4200
CL4202
CL4201
C4201
R4200
R4201
1 4
CN4200
IC4200
IR BOARD
1-983-169-
11
(11)
MOTHERBOARD
BOARD
CN127
(Page 37)
>007P
1
A
B
C
D
E
2 3 4 5 6 78
IR BOARD
3.3
3.36
0.22u
C4201
CL4202
CL4201
CL4200
CL4203
0
R4201
22
R4200
VO
1
GND
2
VCC
3
4
5
CL4204
4P
CN4200
SIRCS 1
DGND 3
4E+3.3V
IC4200
PNA4823M02S0
REMOTE CONTROL
RECEIVER
IC4200
MOTHERBOARD
BOARD
CN127
1
A
B
C
D
E
2 3 4 5 6 78
R4300
R4301
D4300
12
CN4300
SPK LED BOARD
1-983-170-
11
(11)
MOTHERBOARD
BOARD
CN107
(Page 37)
>004P
1
A
B
C
D
E
2 3 4 5 6 78
SPK LED BOARD
HL-3TMH234WW-3.7-HK-BF-SN-J
D4300
2P
CN4300
1SPK-LED
2M+5.2V
180
R4300
180
R4301
MOTHERBOARD
BOARD
CN107
SYSSET
2018/08/2821:56:45(GMT+09:00)