Sony HCD-S20 - Schematic Diagram - KEY Board

HCD-S20
HCD-S20
3333
6-17. SCHEMATIC DIAGRAM - KEY Board -
ADC_KEY1ADC_KEY1
ADC_KEY2
ADC_KEY2
R8 6.8K/1%R8 6.8K/1%R2 6.8K/1%R2 6.8K/1%
R6 47K/1%R6 47K/1%
C56
100pF/50V/NP0
C56
100pF/50V/NP0
R1 2.2KR1 2.2K
R4 47K/1%R4 47K/1%
XP1
3PIN/2.0mm
XP1
3PIN/2.0mm
SW7SW7
R7 2.2KR7 2.2K
C57
100pF/50V/NP0
C57
100pF/50V/NP0
SW8SW8
R3 15K/1%R3 15K/1% R5 15K/1%R5 15K/1%
ESD11
NC/PESD5V0S1BA/30K/35pF
ESD11
NC/PESD5V0S1BA/30K/35pF
SW10SW10
SW2SW2
ESD12
NC/PESD5V0S1BA/30K/35pF
ESD12
NC/PESD5V0S1BA/30K/35pF
SW3SW3
SW9SW9
SW4SW4
SW6SW6SW1SW1
SW5SW5
SW1:0V
SW2:0.6V
SW3:1.34V
SW4:2V
SW5:2.72V
9
᳜
1 ᮹ ᳈ᤶᑻᄤ
1
2
3
EQEQ
CANCELCANCEL
21
FUNCTIONFUNCTION
ENTERENTER
21
DOWNDOWN
OPENOPEN
TUNE+TUNE+
TUNE-TUNE-UPUP
PLAY/PAUSEPLAY/PAUSE
1
2
3
KEY BOARD
A
3625
B
714