Sony SDM-N50 (serv.man2) Service Manual ▷ View online
4-29
4-30
— B BOARD (Component Side) —
— B BOARD (Conductor Side) —
(b)
[ GV IF RECEOVER SIB SYSTEM CONTROL, INVERTER ]
B BOARD
Terminal name of semiconductors
in silk screen printed circuit (
*
)
*
: Refer to Terminal name of semiconductors
in silk screen printed circuit (see page 4-9)
Ref.
*
Q501, Q601,
Q651, Q652
Q602
Q653, Q654
D501 - D503,
D601, D603
2
!£
!§
3
4-31
4-32
1
A
B
C
D
E
F
G
H
2
12
13
11
10
9
8
7
6
5
4
3
(3) Schematic Diagram of H Board
STBY5V
5V
4.4
3.6
1.5
3.6
1.5
3.8
4.4
2.1
0.2
3.8
0.8
3.5
0.2
3.8
3.8
1
2
3
4
5
6
7
8
9
10
11
12
13
14
1
2
3
4
R905
R904
R902
C905
R906
D911
R907
R908
R909
R910
C901
C908
S907
S905
S904
S903
S902
S901
S906
R911
R903
R925
R938
R939
R940
C930
C931
R930
C903
C902
C933
R931
R932
R933
R934
R935
R941
C934
CN901
D913
IC901
Q931
D930
Q930
Q903
Q904
IC902
D905
D912
D915
D914
D906
D907
D908
D909
D910
D903
D902
D916
D901
D931
22
10V
680
1/16W
680
1/16W
680
1/16W
3.3k
1/16W
MA8082-H-TX
820
1/16W
1.5k
1/16W
2.7k
1/16W
8.2k
1/16W
0.01
25V
B
0.1
SW-1
SW-1
SW-1
SW-1
SW-1
SW-1
SW-1
560k
1/16W
2.4k
1/16W
910k
1/16W
82
1/4W
2.2
6.3V
1
10V
270k
15k
470k
22
16V
22
16V
22
16V
82
1/4W
82
1/4W
82
1/4W
4.7k
22k
100k
0.1
18P
MA8082
IS455J
SENSOR
SENSOR
DTC143TKA-T146
SW
DNP319-1
DTC143TKA-T146
SW
PN109F
SW
2SA1037AK-T146
SW
µPC324G2-E2
1SS355
MA8082
MA8082
MA8082
MA8082-H-TX
MA8082-H-TX
MA8082-H-TX
MA8082-H-TX
MA8082-H-TX
AA1101W-TR
AA1101W-TR
MA8082
BRPG1201W-TR
DNP319-1
5V (STBY)
5V (STBY)
2
1
2
1
2
1
2
1
2
1
2
1
3
1
1
2
1
2
3
4
5
6
7
8
9
10
GND
VCC
GND
OUT
11
12
13
14
PW_KEY
KEY
PW_LED1
PW_LED2
IN_LED1
IN_LED2
GND
SEN1
SEN2
GND
VREF
1
2
3
4
5V(SENS)
INPUT_KEY
LED_CTL
15
16
17
18
SEN3
SEN4
5V(STBY)
REMOTO
OUT1
OUT4
V-
V+
IN1-
IN1+
IN2+
IN2-
OUT2
OUT3
IN4-
IN4+
IN3+
IN3-
INPUT
POWER
MENU
+
-
TO B BOARD
CN501
H
USER
CONTROL
CONTROL
B-SS3514<J..>-H(24)
1/16W
1/16W
1/16W
1/16W
16V
25V
Schematic diagram
board
l
l
l
l
l
H
4-33
4-34
— H BOARD (Conductor Side) —
(h)
— H BOARD (Component Side) —
Ref.
H BOARD
Terminal name of semiconductors
in silk screen printed circuit (
*
)
*
Q903, Q930, Q931
D905 - D916
2
3
*
: Refer to Terminal name of semiconductors
in silk screen printed circuit (see page 4-9)
[ USER CONTROL ]
4-35
4-36
1
A
B
C
D
E
F
G
H
I
2
12
13
11
10
9
8
7
6
5
4
3
(4) Schematic Diagrams of U Board
AUDIO12V
11.7
11.7
0
1.3
0
4.8
4.8
1.2
12V
STBY5V
4.5
4.5
4.5
4.5
7.2
7.2
4.5
4.5
4.5
4.5
4.5
0
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
OUT
VCC
GND
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
1
2
3
4
5
C410
C419
C420
C428
C439
C445
C431
C432
C436
C437
C443
FB411
FB412
FB413
C483
C449
R433
C448
R439
R438
R436
R426
R427
C429
C415
R420
R485
R484
R410
R411
C416
R418
R475
C438
R429
R415
R414
R449
R448
C444
C446
R412
R413
C418
R423
R424
C450
C482
R489
C472
C473
C452
C470
C433
C451
C455
C457
R474
C487
C409
C484
C460
C486
C478
C459
R497
R499
L404
R440
R452
R453
R454
C454
R435
R434
C458
R493
R494
R490
R491
FL402
FL403
FL401
FL404
L405
C427
C474
C475
CN406
CN402
Q409
IC403
Q401
IC404
IC412
IC409
IC410
D405
D430
CN401
Q408
0.1
25V
F
220p
50V
CH
220p
50V
CH
220p
50V
CH
0.1
25V
F
100p
50V
CH
2200p
16V
SL
2200p
16V
SL
0.068
16V
B
0.027
16V
B
0.068
16V
B
0.1
25V
F
2.2
50V
8.2k
1/10W
2.2
50V
6.2k
1/16W
1k
1/16W
10k
1/16W
1M
1/10W
220p
50V
CH
1
50V
10k
1/10W
10k
1/16W
10k
1/16W
1M
1/10W
10k
1/10W
1
50V
560
1/10W
220
1/10W
560
1/10W
0.027
16V
B
8.2k
1/10W
0UH
0UH
2.2k
1/10W
2.2k
1/10W
0
0
330
1/10W
3.3k
1/10W
6800p
25V
B
330
1/10W
3.3k
1/10W
1000µ
10V
1000µ
10V
1000µ
10V
1000µ
10V
0.33
16V
B
0.33
16V
B
4.7µ
10V
B
4.7µ
10V
B
22
16V
22
16V
22µ
16V
220
1/10W
100
10V
100µ
16V
39µ
16V
100
6.3V
100
6.3V
100µ
16V
0.33µ
16V
B
0
0
12µH
100
1/16W
0
0
0
0.33µ
16V
B
4.7k
1/10W
4.7k
1/10W
0.33µ
16V
B
100
1/16W
100
1/16W
10k
1/16W
39k
1/16W
0.1
25V
F
0.050
1/2W
27µH
6800p
25V
B
1.0p
CK
1.0p
CK
3P
30P
2SK1828
BUFFER
TDA7315D013TR
AUDIO PROCESS
DTC114EKA-T146
SW
PQ20VZ5U
9V REG
BA05FP
5V REG
MAX1626ESA-TE2
DC-DC
SI4431DY-T1
CONTROL
D3FS4A-TA
PTZ-TE25-6.2A
26P
2SK1828
BUFFER
13
2
2
1
1
2
61
0
59
48
37
1
2
73
84
95
10
6
1
2
95
10
6
84
73
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
SDT-N
SDT-GND
SDT-P
GND
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
CREF
VCC
GND
TRE_L
TRE_R
IN_R
LOUD_R
NC
LOUD_L
NC
SCL
SDA
DGND
L_OUT
R_OUT
BOUT_R
BIN_R
BOUT_L
BIN_L
L_IN
CTL
IN
G
adj
OUT
9V
A5V
21
22
23
24
25
26
27
28
29
30
GND
2
SDT-P
SDT-GND
SDT-N
V+
CS
EXT
GND
REF
SHDN
OUT
D
S
D
D
D
S
S
FB3
FB3
3/
5
G
SD5V
+5V
12V
12V
12V
STBY_5V
AUDIO_R
AUDIO_GND
AUDIO_L
SCL
SDA
CN_SENS
GND
GND
GND
AUDIO_12V
AUDIO_12V
CPU_ST
1
3
SDA
SCL
CPU_ST
SCK
SI
MUTE
HP_STAT
DDON_U
STBY_5V
STBY_5V
12V
12V
12V
12V
12V
12V
GND
GND
GND
GND
GND
GND
GND
CSN
SI
SCK
CSN
SI
SCK
FL1
FG
CSN
TO A BOARD
CN101
U
(AUDIO)
ab1
ab2
ab3
ab5
ab4
ab6
ab7
ab8
ab9
ab10
ab11
ab12
ab13
ab14
ab15
ab16
ab17
ab18
ab19
ab20
ab21
ab22
-a
TO B BOARD CN502
TO B BOARD CN504
B-SS3514<J..>-U-a(24)
•
Divided circuit diagram
One sheet of U board circuit diagram is divided into two
sheets, each having the code U-
a
to U-
b
. For example, the
destination ab1 on the U-
a
sheet is connected to ab1 on the
U-
b
sheet.
b
1
a
Ref. No.
Circuit diagram division code
Schematic diagram
-
a
board
l
l
l
l
l
U
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