Sony SDM-N50 (serv.man2) Service Manual ▷ View online
4-5
4-6
CN401
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
AUDIO 12V
AUDIO 12V
GND
GND
GND
12V
12V
12V
STBY 5V
AUDIO R
AUDIO GND
AUDIO L
CN SENS
CPU ST
SDA
SCL
GND
SDT N
SDT GND
SDT P
U
( AUDIO )
CN404
2
1
3
4
R OUT+
R OUT+
R OUT-
R OUT-
CN405
CN403
1
2
L OUT+
L OUT+
3
L OUT-
4
L OUT-
SPEAKER
R
SPEAKER
L
HEADPHONE
1
CN402
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
SDA
SCL
CPU ST
SCK
SI
CSN
MUTE
HP STAT
DD ON U
STBY 5V
STBY 5V
12V
12V
12V
12V
12V
12V
CN406
3
2
1
SDT P
SDT GND
SDT N
SCK
AIR
AIL
X401
2.8224MHz
2.8224MHz
-IN2
+IN2
+IN1
0UT1
R OUT
L OUT
INR
IN L
SDA
SCL
R OUT
L OUT
IN
CTL
V+
3/5
SH D
G
IN
S
OUT
OUT
D
OUT
EXT
CS
EXTAL
XTAL
OUT A+
OUT A-
OUT B+
OUT B-
HP IN
OUT2
-IN1
IN A-
IN B-
S DOWN
STBY 5V
IC408
HPF
IC401
STEREO DIPOLE
IC403
AUDIO PROCESS
(TRE,BASS,LOUD)
BUFF
Q408,409
FL401
FL402
FL403
IC404
+9V REG
IC412
+5V REG
IC410
CONTROL
IC409
DC-DC
SW
Q401
IC402
POWER AMP
S DOWN
SW
Q410
MUTE
Q406.407
SW
Q404,405
D414
SI
CSN
+9V
SD5V
A5V
+5V
D421
2
3
1
38
5
7
6
15
1
5
3
18
16
37
26
29
61
62
9
20
19
11
6
17
16
6
42
41
20
8
1
GND
1
3
2
3
2
5
1
7
6
B
TO
A BOARD
CN101
A BOARD
CN101
G
TO
B BOARD
CN502
B BOARD
CN502
TO
B BOARD
CN504
B BOARD
CN504
F
B-SS3514<J>-U-24
IN B-
IN B+
IN A+
0UT A
OUT B
IN A-
IC411
AMP
D416
2
3
1
5
7
6
SW
Q411
4-7
4-8
4-3. SCHEMATIC DIAGRAMS AND PRINTED
WIRING BOARDS
4-2. CIRCUIT BOARDS LOCATION
Note:
•
All capacitors are in
µ
F unless otherwise noted. (pF:
µµ
F)
Capacitors without voltage indication are all 50 V.
•
Indication of resistance, which does not have one for rating
electrical power, is as follows.
Pitch: 5 mm
Rating electrical power 1/4 W (CHIP : 1/10 W)
• All resistors are in ohms.
•
f
: nonflammable resistor.
•
F
: fusible resistor.
•
¢
: internal component.
•
p
: panel designation, and adjustment for repair.
• All variable and adjustable resistors have characteristic curve B,
unless otherwise noted.
•
e
: earth-ground.
•
E
: earth-chassis.
• All voltages are in V.
• Readings are taken with a 10 M
Ω
digital multimeter.
• Readings are taken with a color-bar signal input.
• Voltage variations may be noted due to normal production
tolerances.
•
*
: Can not be measured.
• Circled numbers are waveform references.
•
s
: B + bus.
•
S
: B – bus.
G
D
S
2
3
4
5
6
7
8
9
0
!¡
!™
!¢
–
1
G
D
S
G
S
S
D
G
D
Ver.1.6
Transistor
(FET)
(FET)
Transistor
Transistor
Discrete semiconductot
(Chip semiconductors that are not actually used are included.)
Diode
Diode
Diode
Diode
Diode
Diode
Diode
Diode
Diode
Diode
Source
Source
Anode
Anode
(NC)
(NC)
Cathode
Anode
Cathode
Common
Cathode
Cathode
Common
Cathode
Cathode
Common
Common
Common
Common
Cathode
Anode
Base
Emitter
Collector
Base
Emitter
Collector
Drain
Gate
Gate
Drain
Device
Printed symbol
Terminal name
Circuit
Terminal name of semiconductors in silk screen
printed circuit ( )
Anode
Anode
Anode
Cathode
Anode
Anode
Cathode
!£
Transistor
(FET)
(FET)
Transistor
(FET)
(FET)
!∞
Source
Gate
Drain
Cathode
Anode
Anode
Cathode
Anode
Anode
*
Note: The components identified by shading and mark
!
are critical for safety. Replace only with part
number specified.
Note: Les composants identifiés per un tramé et une
marque
!
sont critiques pour la sécurité. Ne les
remplacer que par une pièce portant le numéro
spécifié.
spécifié.
B
H
U
G
A
DISPLAY
MEDIA ENGINE
•
Divided circuit diagram
One sheet of A, U boards circuit diagrams are divided into two
sheets, each having the code A-P1-
a
to A-P1-
b
, A-P2-
a
to
A-P2-
b
, A-P3-
a
to A-P3-
b
, U-
a
to U-
b
. For example, the
destination ab1 on the A-P1-
a
sheet is connected to ab1 on
the A-P1-
b
sheet.
b
1
a
Ref. No.
Circuit diagram division code
4-9
4-10
(1) Schematic Diagrams of A (P1-P3) Boards
1
A
B
C
D
E
F
G
H
I
2
12
13
11
10
9
8
7
6
5
4
3
14
4.9
4.9
4.9
STBY5V
4.9
0
0
5V
3.3V
5V
0
4.6
4.6
*
4.4
4.0
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
9
C108
C109
C101
C112
C114
R126
R127
R121
R115
R116
D102
D105
D101
R150
R151
R152
IC103
IC106
IC107
R105
R106
R111
R112
R109
R110
R113
R114
FB102
FB103
FB101
FB104
R101
R102
R103
C113
FB106
FB105
FB107
CN107
R122
R123
R128
R129
R130
R131
R132
R135
R136
R137
R138
R139
FB108
Q102
Q103
C110
C133
C134
CN104
0.01
25V
B
0.01
25V
B
0.1
25V
F
0.1
25V
F
0.1
25V
F
0
0
10k
1/16W
680
1/16W
220
1/16W
MA151WK-TX
MA151WK-TX
BRPG1201W-TR
10k
1/16W
10k
1/16W
1k
1/16W
M24C16-MN6T
EEPROM
24LC21AT/SN
DDC1
24LC21AT/SN
DDC2
15k
1/16W
15k
1/16W
15k
1/16W
15k
1/16W
0
0
0
0
0UH
0UH
0UH
0UH
100
1/16W
100
1/16W
100
1/16W
150
10V
0UH
0UH
0UH
6P
10k
1/16W
10k
1/16W
100
1/16W
100
1/16W
100
1/16W
100
1/16W
100
1/16W
10k
1/16W
10k
1/16W
10k
1/16W
10k
1/16W
10k
1/16W
0UH
DTC114EKA-T146
SW
SI2301DS-T1
SW
150
10V
150
10V
0.01
25V
B
9P
DDC1_GND
DDC2_GND
SUB_SCL
SUB_SDA
DDC1_VCLK
DDC1_SCL
DDC1_SDA
DDC2_VCLK
DDC2_SCL
DDC2_SDA
3.3V
5V
GND
STBY5V
SER1(1..3)
DDC1_5V
DDC2_5V
SER11
SER12
SER13
NC
NC
NC
VSS
NC
NC
NC
VSS
VCC
VCLK
SCL
SDA
VCC
VCLK
SCL
SDA
E0
E1
E2
VSS
VCC
WC
SCL
SDA
3.3V
3.3V
GND
GND
1
2
3
4
5
6
TXD
RXD
GND
GND
5V
GND
GND
LED_GREEN
LED_UMBER
FB2
FB2
FB2
FB2
FB3
FB3
FB3
5V(STBY)
5V(STBY)
DDON
GND
FB3
TO G BOARD
CN702
(ECS)
TO P2-a
TO P2-a
TO P2-a
TO P2-a
A
(SYSTEM CONTROL)
-P1-a
TO P3-b
TO P2-b
ab24
ab23
ab22
ab21
ab20
ab19
ab18
ab16
ab17
ab2
ab3
ab4
ab7
ab8
ab9
ab10
ab11
ab12
ab13
ab14
ab15
ab6
ab5
ab1
B-SS3514<J..>-A-P1-a(24)
•
Divided circuit diagram
One sheet of A-P1 board circuit diagram is divided into two
sheets, each having the code A-P1-
a
to A-P1-
b
. For
example, the destination ab1 on the A-P1-
a
sheet is
connected to ab1 on the A-P1-
b
sheet.
b
1
a
Ref. No.
Circuit diagram division code
4-11
4-12
A
Schematic diagram
Ò
Ò
Ò
Ò
Ò
-P1-
a
board
A
Schematic diagram
-P1-
b
board
l
l
l
l
l
1
A
B
C
D
E
F
G
H
I
J
2
12
11
10
9
8
7
6
5
4
3
0
0
0
0
0
0
0
0
0
4.9
4.9
4.9
4.9
0
STBY5V
0
0
4.9
1.5
0.7
0.7
0
4.9
4.9
4.9
0
0
0
0
0
0
0
0
0.3
2.3
2.0
0
0
4.9
4.9
4.9
0.6
0
4.9
4.9
4.9
0
0
0
3.2
0.3
4.9
0
0.6
4.7
4.9
1.6
4.9
4.9
4.9
0
3.2
4.6
*
4.4
4.9
0
0
0.3
3.5
4.5
4.6
4.5
4.9
0
2.3
4.9
4.9
4.9
0
0.3
4.9
4.9
4.9
5V
3.3V
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
1
2
3
45
1
2
3
4
5
6
7
8
9
10
11
12
13
14
1
2
3
4
5
1
2
3
4
5
6
7
8
RA102
RA101
C123
C124
C125
C126
C131
C130
R133
R125
R141
X101
R147
R117
C107
C106
R108
R107
R146
R104
R120
R118
C127
C120
C103 C102
C104
C105
C128
C129
C132
R124
R144
R145
TH101
C111
R148
R149
R119
IC101
IC102
IC108
R143
IC105
D103
Q101
D104
IC109
CN108
0.1
25V
25V
F
0.01
25V
B
0.1
25V
25V
F
0.1
25V
25V
F
0.1
25V
25V
F
0.1
25V
25V
F
100
1/16W
10k
1/16W
10k
1/16W
100
1/16W
100p
50V
CH
0.1
25V
25V
F
10k
1/16W
10k
1/16W
10k
1/16W
10k
1/16W
100
1/16W
10k
1/16W
0.1
25V
25V
F
0.1 25V F
22p
50V
50V
CH
22p
50V
50V
CH
100p
50V
CH
0.1
25V
25V
F
0.1
25V
25V
F
100p
50V
CH
0.1
25V
25V
F
22
1/16W
4.7k
1/16W
0.1
25V
25V
F
0
1k
1/16W
1k
1/16W
1k
1/16W
1k
1/16W
MB90F553APF-G-BND-AP
SYSTEM CONTROL
TC7S04FU(TE85R)
INV
TC74HC4066AFT(EL)
SW
0
MM1170BFB
WDT RESET
WDT RESET
1SS355TE-17
DTC114EKA-T146
SW
UDZ-TE-17-12B
TC7S08FU(TE85R)
AND
10P
GV_IFON
INPUT_SEL
HS
VS
POLH
EXITH
POLV
EXITV
CPU_ST
REFCLK
A8
/WRL
/RD
ALE
CH3_AD0
CH3_RST
CH3_AD1
CH3_INTI
AD(2..7)
PVSYNC
/CH_SENS
2
1
1
4
3
2
1
3
5
7
8
6
4
2
1
3
5
7
8
6
4
2
AD2
AD3
AD4
AD5
AD6
AD7
AD4
RST
VS
RCT
VCC
TC
NC
CK
GND
1
2
3
4
5
6
7
8
9
10
TMODE
TAUX3
TVPP1
TRES
TAUX
TCK
RXD
TXD
GND
SUB5V
P22/A18
P23/A19
P24/A20
P25/A21
P26/A22
P27/A23
P30/ALE
P31/RDX
VSS
P32/WRLX
P33/WRHX
P34/HRQ
P35/HAKX
P36/RDY
P37/CLK
P40/SCK
P41/SOT
P42/SIN
P43/SCK1
P44/SOT1
VCC
P45/SIN1
P46/ADTG
P47/SCK0
C
P50/SDA0/SOT0
P15/AD13
P14/AD12
P13/AD11
P12/AD10
P11/AD09
P10/AD08
P07/AD07
P06/AD06
P05/AD05
P04/AD04
P03/AD03
P02/AD02
P01/AD01
P00/AD00
VCC
X1
X0
VSS
PA4/CKOT
PA3
PA2
RSTX
PA1/OUT3
P97/PPG5
P95/PPG3
P96/PPG4
P94/PPG2
P93/PPG1
P92/PPG0
P91/OUT1
P90/OUT0
P87/IN3
P86/IN2
P85/IN1
P84/IN0
P83/TOT1
P82/TOT0
P81/TIN1
P80/TIN0
P77/IRQ7
P76/IRQ6
P75/IRQ5
P74/IRQ4
P73/IRQ3
P72/IRQ2
HSTX
MD2
MD1
MD0
P71/IRQ1
P70/IRQ0
P67/AN7
P66/AN6
P65/AN5
P64/AN4
VSS
P63/AN3
P62/AN2
P61/AN1
P60/AN0
AVSS
AVRL
AVRH
AVCC
P55/SCL2
P53/SCL1
P52/SDA1
P51/SCL0/SIN0
P54/SDA2
P20/A16
P21/A17
P17/AD15
P16/AD14
GND
OUT
VCC
PA0/OUT2
IO1
OI1
OI2
IO2
C2
C3
GND
VCC
C1
C4
IO4
OI4
OI3
IO3
IN B
IN A
H:FLASH WRITTER MODE
L:NORMAL MODE
GND
OUT
VCC
IN B
IN A
CH3_TEMP
A
(SYSTEM CONTROL)
ab24
ab23
ab22
TO P3-b
TO P3-a
TO P3-b
ab21
ab20
ab19
ab18
ab16
ab17
ab2
ab3
ab4
ab7
ab8
ab9
ab10
TO P2-a
TO P2-a
P3-a
TO P3-b
TO P2-a
ab11
ab12
ab13
ab14
ab15
TO P3-a
(WRITER)
-P1-b
ab6
ab5
ab1
B-SS3514<J..>-A-P1-b(24)
•
Divided circuit diagram
One sheet of A-P1 board circuit diagram is divided into two
sheets, each having the code A-P1-
a
to A-P1-
b
. For
example, the destination ab1 on the A-P1-
a
sheet is
connected to ab1 on the A-P1-
b
sheet.
b
1
a
Ref. No.
Circuit diagram division code
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