Sony DSX-A50BT Service Manual

DSX-A50BT
DSX-A50BT
2525
5-11. SCHEMATIC DIAGRAM - KEY Board -
• See page 16 for waveforms. • See page 26 for IC Block Diagrams.
BOARD
A
MAIN
CN103
(2/3)
IC B/D
11
2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
5.1 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5
2.5
5.1
3.4
1.7
2.5
2.5
0
3.3
0
4.7
3.6
5.1 5.1
5.1
0
PT6586-LQ
IC901
1
NCO
2
DIMMER
3
SEG3
4
SEG4
5
SEG5
6
SEG6
7
SEG7
8
SEG8
9
SEG9
10
SEG10
11
SEG11
12
SEG12
13SEG13
14SEG14
15SEG15
16SEG16
17SEG17
18SEG18
19SEG19
20SEG20
21SEG21
22SEG22
23SEG23
24SEG24
25
SEG25
26
SEG26
27
SEG27
28
SEG28
29
SEG29
30
SEG30
31
SEG31
32
SEG32
33
SEG33
34
SEG34
35
COM1
36
COM2
37 COM3
38 COM4
39 SEG35
40 VDD
41 VDD1
42 VDD2
43 VSS
44 OSC
45 INH
46 CE
47 CL
48 DI
LED904
S902
RKZ6.8B2KGP1
D904
RKZ18B2KGP1
D910
NESW505DT-A0-UV
LED901
LED902
S903
RKZ6.8B2KGP1
D906
100
R912
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
CN001
15P
KEY_GND
KEY_GND
RE_1
RE_0
KEY_1
KEY_0
SIRCS
LCD_DATA
LCD_CE
LCD_CLK
ILL
PANEL_SW
GND
NC
GND
RKZ6.8B2KGP1
D907
RKZ6.8B2KGP1
D901
100R936
LED903 LED905
100R935
RKZ6.8B2KGP1
D909
S904
VCC OUT GND
PNA4813M01S0
IC902
1
23
RKZ6.8B2KGP1
D905
LED906
RKZ5.1B2KGP1
D902
1M
R930
LED907
S901
RKZ6.8B2KGP1
D908
0.47
C905
RT1N140C-TP-1
Q901
0
R938
S906
100R950
82
R916
S907
2
4
5
3
1
6
7
LSW905
LSW906
3
12
4
56
LSW904
3
12
4
56
3
12
4
56
LSW903
3
12
4
56
LSW902
3
12
4
56
LSW901
3
12
4
56
CL001
R917
820
DA2J10100L
D903
0.1
C903
C901
0.1
0.1
C902
0.1
C904
178
9101112
56
1419 18 17 131620 15232427 2128 26 25 22313335 303236 34 29
234
LCD901
0
R920
68
R913
68
R914
68
R915
R951 R954 R957
R960
R966
S905
R952
R955
R958
820
R901
1k
R902
1k
R903
1.2k
R904
1.5k
R905
1.8k
R906
R968
820
R907
R967
1k
R908
R965
1k
R909
R964
R963
1.2k
R910
R962
R961
1.5k
R911
150
R928
150
R929
R934
1k
1000p
C912
39k
R931
R933
1k
R932
1k
CE
DI
SEG1 SEG2
SEG1
SEG2
COM4
COM3
COM2 COM1
SEG3 SEG4 SEG5 SEG6 SEG7 SEG8 SEG9
SEG10
SEG11
SEG12
SEG13
SEG14
SEG15
SEG16
SEG17
SEG25
SEG26
SEG27
SEG28
SEG29
SEG30 SEG31 SEG32 SEG24 SEG23 SEG22 SEG21 SEG20 SEG19 SEG18
SEG3 SEG4 SEG5 SEG6 SEG7 SEG8 SEG9
SEG10
SEG11
SEG12 SEG13 SEG14 SEG15 SEG16 SEG17 SEG18 SEG19 SEG20 SEG21 SEG22 SEG23 SEG24 SEG25 SEG26 SEG27 SEG28 SEG29 SEG30 SEG31 SEG32
COM4 COM3 COM2 COM1
CL
CE
CL
DI
LIQUID CRYSTAL DISPLAY
(LCD BACK LIGHT)
SEEK+
CALL
OFF
SOURCE
OFF
SOURCE
SEEK+
CALL
4
SHUF/MIC
3
PAU S E
1
ALBUM
2
ALBUM
REMOTE CONTROL
IC902
LIQUID CRYSTAL DISPLAY DRIVER
IC901
KEY BOARD
SEEK-
330470330
SCM015B17TT86P SCM015B17TT86P
330
SCM015B17TT86P SCM015B17TT86P
SCM015B17TT86P
470
SCM015B17TT86P
330
DIMMER CONTROL
RECEIVER
SEEK–
220
220
220
220
220
220
220
220
SCRL
DSPL
ROTARY ENCODER
SELECT
PUSH ENTER/
(VOLUME)
PTY
220
1
A
B
F
7
E
D
9
H
114
C
131023 141285
G
6
PTY
AF/TA
(E, IND)
(AEP, UK)
/MODE
/MODE
(Page 18)

Sony DSX-A50BT Specifications

General

MP3 playback	Yes
CD-R playback	No
FM band range	87.5 - 108 MHz
Product color	Black
Amplifier output power	50 W

Weight and Dimensions

Weight	700 g
Dimensions (WxDxH)	178 x 120 x 50 mm