Printed Wiring Board - Key Board - Sony XR-CA600X Service Manual

XR-CA600X/CA620X
6-8. PRINTED WIRING BOARD – KEY Board –
1 2 3
KEY BOARD
(COMPONENT SIDE)
A
DISC/
PRESET+
MBP
MENU
B
.
SEEK–
m
EQ7
C
SOUND
A1 K1
S1 S2
A2 K2
K2 A2
S2 S1
K1 A1
OFF
D
KEY BOARD (CONDUCTOR SIDE)
E
F
G
RE501
ROTARY ENCODER
(VOLUME CONTROL)
H
• Semiconductor Location
Ref. No. Location Ref. No. Location
D501 H-11 IC502 A-5
D502 G-10
LED510 C-13
D503 F-10
D504 G-6 LED511 B-13
LED512 B-5
IC501 G-9 LED513 C-5
4 5
1 2
LIST
3 4
>
SOURCE
SEEK+
M
LED512, 513
(LCD BACK LIGHT)
o
MODE
DISC/
K2
A2 A1
PRESET–
S2 S1
S1
ENTER
K1 A1 A2
6 7 8
74
LIQUID CRYSTAL DISPLAY
1
SHUF
DSPL
2
K2 A2
K1 K2 A2
S2 S1 S2 S1
S2 REP
K2 1 K1 A1 K1 A1
22 22
9 10 11
38
37
3 4 5
K2 A2 K2 A2 K2 A2 K2
S2 S1 S2 S1 S2 S1 S2
K1 A1 K1 A1 K1 A1 K1
LSW501, 507, 509, 510,
LSW514, 517–522
A1
S1
A2
B
12 13
LED510, 511
(LCD BACK LIGHT)
6
A2
11
S1
1-679-991- (11)
A1
K1
S2
K2
1-679-991-
11
(11)
SUB BOARD
CNP801
(Page 20)