Read Sony XR-CA370 / XR-CA370X (serv.man2) Service Manual online
XR-CA370/CA370X
19
19
5-6.
SCHEMATIC DIAGRAM – CONTROL Board –
•
See page 14 for Waveform.
R902
R903
R904
R905
D960
CN900
S973
D963
D961
D962
IC900
S963
S958
S974
S954
S957
S975
S970
S977
S976
S969
S953
S960
S961
S962
S951
C954
C955
C952
R954
C953
R960
R961
R933
R930
R931
R910
R912
R914
R915
R920
R963
R955
R901
LCD1
S956
S979
S978
S955
S980
S959
S971
S982
S967
S981
S972
S983
D964
R900
S965
S964
S968
D921
D916
D919
D935
D934
D920
D915
D912
D930
D932
D922
D910
D924
D911
D914
D918
D933
D936
D937
D940
D943
D944
R935
R932
R916
R913
R911
R921
R934
D942
R917
D941
R965
R966
R967
R918
R964
R962
1k
1k
1k
1k
1SS355
12P
1SS355
1SS355
1SS355
LC75884W
0.047
0.047
680p
43k
0.47
220
220
100
100
100
100
100
100
100
100
220
0
1k
1SS355
0
NSPW310BST
100
100
220
220
100
220
∗
C
OM
1
C
OM
2
C
OM
3
CO
M
4
COM
1
COM
2
COM
3
C
OM
4
S1
S2
S3
S4
S5
S
6
S7
S8
S9
S10
S11
S12
S13
S14
S15
S16
S17
S18
S19
S20
S21
S22
S23
S24
S25
S26
S27
S28
S29
S30
S31
S32
S33
S34
S35
S36
S
37
S38
S
39
S40
S41
S42
S43
S
44
S45
S
1
S2
S3
S4
S
5
S6
S7
S8
S9
S10
S
11
S12
S
13
S
14
S15
S16
S17
S18
S19
S
20
S
21
S
22
S46
S47
S48
S49
S50
S51
S
51
S50
S49
S48
S47
S45
S46
S44
S43
S42
S41
S40
S39
S38
S37
S36
S35
S34
S33
S32
S31
S23
S24
S25
S26
S27
S28
S29
S30
∗
∗
∗
∗
∗
∗
∗
∗
∗
∗
∗
∗
∗
∗
∗
∗
∗
∗
∗
∗
∗
∗
∗
∗
∗
∗
∗
∗
∗
∗
KS6
VDD
VLCD
VLCD1
VLCD2
VSS
TEST
OSC
DO
CE
CL
DI
S1
S2
S42
S41
S40
S37
S36
S35
S34
S33
S32
S31
S30
S29
S28
S27
S26
S25
S24
S23
S39
C
O
M
4
C
O
M
3
C
O
M
2
C
O
M
1
S
5
3
S
52
S
5
1
S
5
0
S
49
S
4
8
S
47
S
46
S
45
S
44
S
43
S
3
S
4
S
5
S
6
S
7
S
8
S
9
S
1
0
S
11
S
1
2
S
13
S
1
4
S
15
S
1
6
S
1
7
S
18
S
1
9
S
20
S
2
1
S
22
LAMP+B
LAMP+B
GND
GND
BU+5V
(CHASSIS)
S
1
S
2
S
3
S
4
S
5
S
6
S
7
S
8
S
9
S
1
0
S
11
S
1
2
S
1
3
S
1
4
S
1
5
S
1
6
S
1
7
S
1
8
S
1
9
S
20
S
2
1
S
2
2
S
3
7
S
3
6
S
3
5
S
3
4
S
33
S
3
2
S
31
S
30
S
2
9
S
2
8
S
27
S
2
6
S
2
5
S
24
S
23
S
45
S
44
S
43
S38
S
42
S
4
1
S
40
S
3
9
S
38
C
O
M
4
CO
M
3
CO
M
2
C
O
M
1
NOSE SW
LCD-RESET
LCD-CLK
LCD-DI(TX)
LCD-CE
LCD-DO(RX)
DISC -
1
MODE
DSPL
S958,974
ATT
OFF
SHUF
4
REP
3
DISC +
2
+
-
S969,976
S970,977
LIQUID CRYSTAL DISPLAY
LIQUID CRYSTAL
DISPLAY DRIVER
5
FRASH WRITE
RES
KI1
KI2
KI3
KI4
KI5
KS
5
K
S
4
K
S
3
K
S
2
K
S
1
-(VOLUME)
+(VOLUME)
S
4
6
S
47
S
4
8
S
4
9
S
5
0
S
51
SEL
S955,978
S956,979
S957,975
S959,980
S971,982
S967,981
S972,983
SOURCE
AF
ATA
PTY
TA
SEEK
EQ3
BTM
SENS
6
5
DSPL
OFF
BTM
SENS
REP
3
SHUF
4
6
TA
ATA
PTY
DISC +
2
DISC -
1
ATT
+
-
SEEK
D916
D921
+
-
(VOLUME)
AF
SEL
MODE
∗
CL-170SR-CD
CL-170PG-CD
(CA370X)
(CA370)
D918-922,924,D930-938
D910-912,914-916,
(LCD BACK LIGHT)
(CA370X)
(CA370)
∗
D941-944
CL-190PG-CD
CL-190SR-CD
(CA370X)
(CA370)
∗
R911,913
120
270
(CA370X)
(CA370)
∗
R962
22
180
(CA370X)
(CA370)
∗
270
150
(CA370X)
(CA370)
∗
R965
22
180
R916,921,932
(CA370X)
(CA370)
∗
150
R935
330
D941,942
SOURCE
D943,944
EQ3
4
(Page 16)
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