Schematic Diagram - Key Board - Sony XR-CA430X Service Manual

6-7. SCHEMATIC DIAGRAM – KEY Board – •
CN901
12P
GND
GND
NC
GND
KEY-1
KEY-0
R996 1k
CE-LCD
R998 1k
DATA-LCD
(Page 21)
R997 1k
CLK-LCD
+B
+B
PANEL
D901
UMZ6.8ENTR
LSW900(1/2)
LSW901(1/2) R901
OFF
680
R902
S902
SOURCE
680
VOL LSW903(1/2)
R903
680
+
LSW904(1/2)
R904
ATT
1k
VOL
LSW905(1/2) R905
- 1.5k
MODE
S906 R906
1.5k
ALBM +
ATA LSW907(1/2) R907
2.2k
6
R908
LSW908(1/2) 3.3k
AE
R909
BTM LSW909(1/2)
4.7k
SENS
DISC -
LSW910(1/2) R910
1 6.8k
DISC +
LSW911(1/2) R911
2
10k
ALBM -
BL SKIP LSW912(1/2) R912
15k
5
REP
LSW913(1/2) R913
3
22k
SHUF
LSW914(1/2) R914
4 47k
See page 14 for Waveform.
R931 R941 R951 R932 R942 R952 R933
1.5k 1.5k 1.5k 680 680 680 680
PL901
(LCD BACK LIGHT)
LSW900(2/2) LSW925(2/2) LSW908(2/2)
R919 R929 R939
∗ ∗ ∗
CE LSW920(2/2) LSW901(2/2) LSW909(2/2)
DI
∗ R919,929,939
CL
10 (CA440)
22 (CA430X)
LED940
LSW926(2/2) LSW910(2/2)
CL-190FG (CA440)
CL-190SR (CA430X)
(ILLUMINATION)
LSW923(2/2) LSW927(2/2) LSW911(2/2)
PL902
(LCD BACK LIGHT)
SEEK AMS
LSW920(1/2)
R921 LSW921(1/2)
SEL
680
R922
S922 D-BASS
680
SEEK AMS
R923 LSW923(1/2)
680
R924 LSW924(1/2)
MBP
1k
R925 LSW925(1/2)
DSPL
1.5k
R926
1.5k LSW926(1/2)
TA
R927
2.2k LSW927(1/2) MTL
PTY
R943 R953 R934 R944 R954 R935 R945 R955 R936 R946 R956 R937 R947
680 680 680 680 680 680 680 680 680 680 680 680 680
R967 R977
680 680
LSW913(2/2) LSW903(2/2)
LED902
∗
∗
LED902,903
CL-190PG (CA440)
R981
LSW914(2/2) LSW904(2/2)
CL-190SR (CA430X) 470
SOURCE
LED922
LED903 ∗
∗
∗ LED906
R980
CL-190FG (CA440)
CL-190SR (CA430X)
MODE
LSW912(2/2) LED950 LED906 LED923
∗ ∗ ∗
∗ LED950
CL-190FG (CA440)
CL-190SR (CA430X)
(ILLUMINATION)
LSW907(2/2) LSW905(2/2) LSW921(2/2) LSW924(2/2)
23 23
R957 R990 R991 R992
680 2.2k 2.2k 2.2k
SEG47
R987
S47
680
SEG48
S48
SEG49
S49
COM1
∗ D991
COM1
COM2
UDZ-TE-17-4.7B (CA440)
COM2
UDZ-TE-17-5.1B (CA430X) COM3
COM3
COM4
R999
R995 COM4
0
1M
VDD
R994 R983 1k
D991 C992
330k VDD1
∗
0.1
R984 1k
C994
C991 C993 VDD2
100p
0.022 0.1 R985 1k
VSS
1k
OSC
C995 0.22
INH
CE
CE
CL
CL
DI
DI
∗ LED922,923
CL-190PG (CA440)
CL-190SR (CA430X)
D-BASS
LCD901
LIQUID CRYSTAL DISPLAY
XR-CA430X/CA440
SEG31
S31
SEG30
S30
SEG29
S29
SEG28
S28
SEG27
S27
SEG26
S26
SEG25
S25
SEG24
S24
SEG23
LCD DRIVER S23
SEG22
IC901
S22
LC75824W
SEG21
S21
SEG20
S20
SEG19
S19
SEG18
S18
SEG17
S17
SEG16
S16