Sony CDX-S2050C / CDX-S2050V Service Manual ▷ View online
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25
CDX-S2050C/S2050V
CDX-S2050C/S2050V
3-12. SCHEMATIC DIAGRAM – KEY BOARD (S2050C) –
D901
D981
R972
R921
R922
R929
R937
R938
R974
JP936
R927
R935
R936
R939
R941
R940
R942
R947
R948
R949
R950
R930
R931
R933
R943
R944
R945
R946
R951
R952
R953
LED931
LED932
R967
JP961
CN901
LED941
LED942
LED952
R973
C971
C982
C981
C985
IC901
R983
R987
D982
R976
D902
Q992
Q991
LED951
JP935
LCD901
Q921
R923
R924
LSW901(2/2)
R934
LSW911(2/2)
LSW913(2/2)
LSW910(2/2)
R928
R932
LSW908(2/2)
LSW912(2/2)
LSW902(2/2)
LSW909(2/2)
LSW914(2/2)
LSW917(2/2)
LSW915(2/2)
LSW918(2/2)
LSW916(2/2)
LSW919(2/2)
LSW906(2/2)
LSW920(2/2)
LSW905(2/2)
LSW903(2/2)
LSW921(2/2)
R954
LSW904(2/2)
LSW907(2/2)
IC971
C986
R962
R963
R961
R925
R926
R957
R955
R956
R958
R959
R960
R981
R982
C984
C983
R984
R985
R985
R986
R977
R979
R978
R919
R907
R908
R909
R910
R911
R912
R913
R914
R915
R916
R917
R918
LSW
908(1/2)
LSW
909(1/2)
LSW
910(1/2)
LSW
911(1/2)
LSW
912(1/2)
LSW
913(1/2)
LSW
914(1/2)
LSW
915(1/2)
LSW916(1/2)
LSW
917(1/2)
LSW
918(1/2)
LSW
919(1/2)
LSW
920(1/2)
LSW
921(1/2)
R901
R902
R903
R904
R905
R906
LSW
901(1/2)
LSW
902(1/2)
LSW
903(1/2)
LSW
904(1/2)
LSW
905(1/2)
LSW
906(1/2)
LSW
907(1/2)
(Page 23)
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CDX-S2050C/S2050V
CDX-S2050C/S2050V
Ref. No.
Location
• Semiconductor Location
Ref. No.
Location
D901
G-11
D902
G-11
D981
G-6
D982
G-10
IC901
G-8
IC971
D-14
LED931
B-11
LED932
B-4
LED941
B-14
LED942
C-14
LED951
A-12
LED952
A-2
Q921
G-4
3-13. PRINTED WIRING BOARD – KEY BOARD (S2050V) –
•
See page 15 for Circuit Boards Location.
: Uses unleaded solder.
1
A
B
C
D
E
F
G
H
2
3
4
5
6
7
8
9
10
11
12
13
14
R907
R909
R910
IC971
LSW910
LSW911
LSW906
LSW904
LSW903
LSW907
LSW921
LSW920
LSW919
LSW918
LSW917
LSW916
LSW915
LSW914
LSW913
LSW912
LSW902
LSW909
LSW908
R908
R957
R951
R952
R943
R944
R939
R940
R935
R936
JP935
R925
R926
R929
R930
LSW905
LSW901
LED931
LED932
LED951
LED952
LED942
LED941
R973
R921
R922
R933
R955
R956
R911
R912
R913
R914
R915
R916
R917
R918
R919
R901
R902
R903
R904
R906
IC901
R972
C971
R974
R976
R977
R978
R979
D901
R981
R982
D981
C981
C982
R983
R984
R985
R986
R987
C983
C984
C985
D902
D982
Q921
R947
R948
R905
R967
R961
R962
R963
FMB4
FMB3
C986
JP961
2
3/REP
4/SHUF
5
6
PTY
AF/TA
OFF
IC971
DSPL/DIM
SENS/BTM
1
LSW905
LSW906
VOL
LSW904
LED952
(DISC-L)
LCD901
LIQUID CRYSTAL DISPLAY PANEL
LED951
(DISC-R)
LSW911,
LED942
LSW910,
LED941
SEEK
LSW901
B2
MAIN
BOARD
CN701
SOURCE
MODE
(LCD BACK LIGHT)
52
50
40
30
20
10
1
(LCD BACK LIGHT)
EQ3
ATT
(Page 19)
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CDX-S2050C/S2050V
CDX-S2050C/S2050V
3-14. SCHEMATIC DIAGRAM – KEY BOARD (S2050V) –
D901
D981
R972
R929
R981
R982
R974
R925
R935
R939
R947
R933
R943
JP961
CN901
R973
C971
C982
C981
C985
R983
R987
D982
R976
D902
JP935
LCD901
Q921
IC901
LED951
LSW901(2/2)
LSW909(2/2)
LSW912(2/2)
LSW908(2/2)
LSW914(2/2)
LSW915(2/2)
LSW918(2/2)
LSW904(2/2)
LSW907(2/2)
LSW921(2/2)
LSW903(2/2)
R926
R930
R936
R940
R944
R948
LSW911(2/2)
IC971
C986
LED931
LED932
LED941
LED942
R967
LED952
R921
R922
R961
R962
R963
LSW902(2/2)
LSW917(2/2)
R951
R952
R957
R955
R956
C984
C983
R984
R985
R986
R977
R979
R978
R919
R907
R908
R909
R910
R911
R912
R913
R914
R915
R916
R917
R918
LSW
908(1/2)
LSW
909(1/2)
LSW
910(1/2)
LSW
911(1/2)
LSW
912(1/2)
LSW
913(1/2)
LSW
914(1/2)
LSW
915(1/2)
LSW
916(1/2)
LSW
917(1/2)
LSW918(1/2)
LSW
919(1/2)
LSW
920(1/2)
LSW
921(1/2)
R901
R902
R903
R904
R905
R906
LSW
901(1/2)
LSW
902(1/2)
LSW
903(1/2)
LSW
904(1/2)
LSW
905(1/2)
LSW
906(1/2)
LSW
907(1/2)
LSW913(2/2)
LSW919(2/2)
LSW906(2/2)
LSW910(2/2)
LSW916(2/2)
LSW920(2/2)
LSW905(2/2)
(Page 23)
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CDX-S2050C/S2050V
CDX-S2050C/S2050V
• IC Block Diagrams
– SERVO Board –
IC2
BA5966FP-FE2
+
–
+
–
+
–
REV
FWD
OUT F
OUT R
+
–
+
–
+
–
+
–
+
–
+
–
MUTE
+
–
+
–
+
–
+
–
+
–
+
–
+
–
LEVEL
SHIFT
LEVEL
SHIFT
–
+
LEVEL
SHIFT
–
+
LEVEL
SHIFT
–
+
–
+
VCC
LOADING DRIVER
24
23
22
21
20
19
18
17
16
15
4
5
6
7
8
9
10
11
12
13
14
2
1
3
27
28
26
25
REV
OPIN4(+)
OPIN4(–)
OPOUT4
OPIN3(+)
OPIN3(–)
OPOUT3
MUTE
BIAS
GND
VO3(–)
VO3(+)
VO4(–)
VO4(+)
FWD
OPIN1(+)
OPIN1(–)
OPOUT1
OPIN2(+)
OPIN2(–)
OPOUT2
VCC
VOL(–)
VOL(+)
VO2(–)
VO2(+)
VO1(–)
VO1(+)
– MAIN Board –
IC401
BD3808FS-FE2
32
31
30
29
28
27
26
25
24
23
22
I
2
C BUS
LOGIC
VCO
MIX
FADER
(0~-58,
-∞dB)
FADER
(0~-58,
-∞dB)
FADER
(0~-58,
-∞dB)
FADER
(0~-58,
-∞dB)
VOLUME
(+23~-79dB,-∞dB
1dB STEP)
VOLUME
(+23~-79dB,-∞dB
1dB STEP)
INPUT GAIN
(0~15dB,1dB STEP)
INPUT SELECTOR
(4 STEREO INCLUDE 1 ISOLATION INPUT)
INPUT GAIN
(0~15dB,1dB STEP)
ANTI-ALIASING
FILTER
ANTI-ALIASING
FILTER
MUTE
fc:40kHz
fc:40kHz
MUTE
6
7
8
9
10
11
3
4
5
2
1
DGND
AGND
FIL
AN
AP2
AP1
B1
B2
C1
C2
NC
NC
NC
NC
NC
NC
NC
12
14
16
13
15
SDA
SCL
MUTE
SEL
ADJ
VCC
OUTF1
OUTR1
OUTF2
OUTR2
NC
NC
NC
OUTS1
OUTS2
21
20
19
18
17
VCC
VCC/2
TONE
PASS
PASS
BASS
fo:60,70,80,100,120,140,160,200Hz
Q:0.5,0.75,1,1.25
fo:60,70,80,100,120,140,160,200Hz
Q:0.5,0.75,1,1.25
MIDDLE
fo:500Hz,1kHz
Q:1
fo:500Hz,1kHz
Q:1
TABLE
fo:5,7.5,10,12.5kHz
fo:5,7.5,10,12.5kHz
TONE
PASS
PASS
EFFECT (0dB~
+20dB,2dB STEP)
EFFECT (0dB~
+20dB,2dB STEP)
2ND ORDER
LPF
2ND ORDER LPF
fc:OFF,80,120,160Hz
Q: 0.707
fc:OFF,80,120,160Hz
Q: 0.707
BASS,TREBLE, MIDDLE
(-15dB~+15dB,1dB STEP)
BASS,TREBLE, MIDDLE
(-15dB~+15dB,1dB STEP)
GAIN+ATT
(+10~-29,
-∞dB)
VDDA
INTERPOLATOR
RAM
BUFFER
&
CONTROL
LOGIC
TEST LOGIC
&
PIN MUX'S
I
2
C/SPI
INTERFACE
BAND PASS
FILTER
SIGMA DELTA
CONVERTER
SINC4
FILTER
REF3
REF2
REF1
VSS
VDDD
RESETN
TM
1
MPX
16
CSN
SDAOUT
RDSREG
3
INTN
MPX
SINC4REG
SDAIN
SCK
SPI
TESTREG
SCK
SPI
TESTREG
14
2
3
4
5
6
7
8
INTN
15
SA_DATAOUT
13
SDA_DATAIN
12
SCL_CLK
11
OSCILLATOR
XTO
10
XTI
9
RDS
DEMODULATOR &
SYNCHRONIZATION
2
IC51
TDA7333013TR
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