Sony CA440 - Printed Wiring Board - KEY Board

XR-CA430X/CA440
2222
KEY BOARD (COMPONENT SIDE)
1-683-350-
11
(11)
AK
AK
AK
AK
KA
AK
KA
S2
K1
S1
A1
A1
S1
K1
S2
A1
S1
K1
S2
A1
S1
K1
S2
A1
S1
K1
S2
A1
S1
K1
S2
A1
S1
K1
S2
A1
S1
K1
S2
A1
S1
K1
S2
A1
S1
K1
S2
A1
S1
K1
S2
A1
S1
K1
S2
S2
K1
S1
A1
LCD901
LIQUID CRYSTAL DISPLAY
1 50
(ILLUMINATION)
SOURCE
SEL
AE
MODE
ATT
VOL
+
−
−
1
BTM
SENS
+
2
DISC
− +
ALBM
REP
3
SHUF
4
ATA
6
BL SKIP
5
TA
DSPL
MTL
PTY
OFF
MBP
D-BASS
(ILLUMINATION)
SEEK
AMS
KEY BOARD (CONDUCTOR SIDE)
1-683-350-
11
(11)
IC901
PL902
(LCD BACK LIGHT)
PL901
(LCD BACK LIGHT)
AKK
KK
A
MAIN BOARD
CN701
1 2 3 4 5 6 7 8 9 10 11 12 13 14
A
B
C
D
E
F
G
H
AK
LED902, 903, 922,
923, 940, 950
6-6. PRINTED WIRING BOARD – KEY Board –
(Page 18)
• Semiconductor
Location
Ref. No. Location
D901 G-10
D991 F-9
IC901 F-7
LED902 C-1
LED903 C-2
LED906 C-1
LED922 C-13
LED923 C-14
LED940 C-12
LED950 C-3