Sony XM-N502 Service Manual ▷ View online
XM-N502
XM-N502
9
9
4-2. SCHEMATIC DIAGRAM - MAIN Board (2/2) -
Note: When replacing the Q110, Q111, Q210 and Q211 on the MAIN board, refer
to “NOTE FOR REPLACEMENT OF THE TRANSISTORS” on page 2.
• See page 7 for Waveforms. • See page 7 for IC Block Diagram.
(1/2)
MAIN
BOARD
1
IC B/D
2
2
1
0.1
0.8
0.8
0.1
14.3
14.3
14.3
14.3
13.7
13.7
0.5
2.5
0
0.3
1.6
3.8
14.3
0
2.5
5
5
14.3
5.7
5.7
14.3
0.1
14.3
14.2
0.1
14.2
0
2
5.6
5.6
5.4
5.4
5.6
5.6
14.3
14.3
-14.9
-30.3
-14.3
-14.3
-30.3
-14.9
-14.3
-30.3
-14.9
13.8
30
13.2
13.8
13.2
30
13.8
13.2
30
14.2
0.1
0.1
14.2
0.2
-0.3
-0.9
-0.3
-30.3
-30.3
0.2
0.2
0.7
-0.9
-0.9
-29.6
-0.9
0.6
1.2
30
30
13.9
0.2
0.7
1.3
0.6
-0.3
-29.1
30
29.5
1.3
0.1
29.4
29.5
0.1
0.1
0.7
0.1
-29.1
-29.1
-0.4
0.7
-29.1
0.2
-29.1
0.2
-0.3
29.5
29.4
30
1.3
29.5
-0.8
-29.6
-29.1
-0.3
-0.8
0.6
0.6
-0.8
1.2
0.7
0.2
1.3
0.7
30
30
-30.3
-0.3
-30.3
-0.8
0.2
-0.3
0.2
0.2
13.9
100
R223
470
R907
T901
4
2
1
3
5
6
S
FKV550N
Q911
RT1N141C-TP-1
Q901
0.01
C308
UDZSUSTE-1715B
D306
1k
R921
1.5k
R137
1k
R904
0.1
R232
3.3k
R321
2.2
R130
22k
R913
1k
R918
DA2J10100L
D307
TP14
100
R222
50V
560
C305
16V
47
C211
1
C911
0.047
C215
100
R123
1.5k
R237
TP19
1k
R318
2SC3052EF-T1-LEF
Q308
10k
R117
TP17
RT1N141C-TP-1
Q906
FRH10A15
D304
2.2
R230
10k
R133
2SC5100-P
Q210
DA2J10100L
D905
2.2
R927
1000p
C908
0.01
C307
2SC5100-P
Q110
RTAN140C-T112-1
Q908
RT1N141C-TP-1
Q904
2SA1908-P
Q111
16V
47
C111
100
R122
1k
R922
3.3k
R320
220
R229
10k
R233
RTAN140C-T112-1
Q909
16V
2200
C915
2.2k
R906
1.5k
R221
2.2
R234
22
R926
TP15
33k
R219
270
R905
UDZSUSTE-1713B
D305
TP10
KTA1023-Y-AT/P
Q109
0.1
C914
DA2J10100L
D202
0.01
C318
1.5k
R908
47p
C212
TP9
2.2
R928
50V
560
C306
10k
R901
0.1
C313
33k
R119
4.7k
R915
100k
R940
10k
R217
TP18
(GRN)
(RED)
SML1216WTP4
D918
2SC3052EF-T1-LEF
Q112
1.5k
R220
2.2
R131
DZ2J160M0L
D904
1000p
C910
10k
R902
TP7
0.01
C909
22
R925
2.2
R134
0.1
R132
KTC1027-Y-AT/P
Q108
DA2J10100L
D102
1k
R924
33k
R118
1.5k
R138
0.1
C906
KTC1027-Y-AT/P
Q208
22p
C113
ISA1235AC1-T112-1EF
Q309
2SA1908-P
Q211
10k
R939
0.01
C311
1000p
C903
FCH10A15
D303
KTA1281Y-AT
Q902
KTC3198GR-A
Q317
220
R129
TP11
1.5k
R121
1.5k
R238
2SC3052EF-T1-LEF
Q903
10k
R903
1k
R923
16V
100
C905
0.1
C312
0.1
C902
47p
C112
22p
C213
TP21
2.2
R231
33k
R218
2.2k
R932
KTA1023-Y-AT/P
Q209
2SC3052EF-T1-LEF
Q307
16V
100
C907
2.2k
R216
2SC3052EF-T1-LEF
Q212
TP16
DA2J10100L
D101
DA2J10100L
D201
RT1P441C-TP-1
Q905
0.047
C115
4.7k
R916
10k
R933
1.5k
R120
6.8k
R914
TP8
KTA1266GR-AT
Q314
22k
R128
0.1
C114
2SC3052F-T1-LF
Q106
680
R126
ISA1235AC1-T112-1EF
Q107
220
R127
680
R226
2SC3052F-T1-LF
Q206
22k
R228
ISA1235AC1-T112-1EF
Q207
220
R227
0.1
C224
47k
R931
TP12
TP20
TP22
S
FKV550N
Q910
10k
R941
10k
R942
KTC3198GR-A
Q315
KTC3198GR-A
Q313
KTA1266GR-AT
Q316
KTA1266GR-AT
Q318
16V
100
C919
16V
100
C920
0.1
C136
2.2k
R136
R912
10k
C912
0.1
2SC4207(T5RSONY,F)
Q203
2SC4207(T5RSONY,F)
Q103
2SA1618-YGRTE85R
Q102
2SA1618-YGRTE85R
Q202
10
R327
10
R325
10
R323
10
R322
10
R324
10
R326
1.5k
R116
2.2k
R141
100k
R135
100k
R235
100k
R319
C904
1
C913
1
1k
R919
1k
R920
L901
80uH
15k
R239
15k
R139
10k
R140
10k
R240
47k
R943
DA2J10100L
D906
ISC3244AS1-T112-E
Q105
ISC3244AS1-T112-E
Q205
ISA1284AS1-T112-E
Q104
ISA1284AS1-T112-E
Q204
TL594CD-R2
IC901
1 1IN+
2 1IN–
3 FEEDBACK
4 DTC
5 CT
6 RT
7 GND
8 C1
9
E1
10
E2
11
C2
12
VCC
13
OUTPUT
CTRL
14
REF
15
2IN–
16
2IN+
16V
100
C317
47k
R224
47k
R225
47k
R125
47k
R124
0.1
C921
7
4
3
1
5
2
6
IC901
DC/DC CONVERTER
MAIN BOARD (2/2)
OVER VOLTAGE DETECT
(CHASSIS)
CAM006
Q902, 903
B+ SWITCH
DC OFF DETECT
(E, IND)
PROTECT DETECT
Q905, 906
LED DRIVER
(RED): PROTECTOR ON
PROTECTOR
POWER/
(GRN): POWER ON
DC/DC CONVERTER
TRANSFORMER
DRIVER
DRIVER
DRIVER
DRIVER
SWITCHING
SWITCHING
5W
5W
POWER AMP
POWER AMP
POWER AMP
POWER AMP
DRIVE AMP
DRIVE AMP
DRIVE AMP
DRIVE AMP
BIAS
BIAS
BIAS
BIAS
OVER LOAD DETECT
OVER LOAD DETECT
-2
-1
-2
-1
-2
-1
-2
-1
DIFFERENTIAL AMP
DIFFERENTIAL AMP
DIFFERENTIAL AMP
DIFFERENTIAL AMP
DRIVE AMP
DRIVE AMP
DRIVE AMP
DRIVE AMP
-15V REGULATOR
-15V REGULATOR
-15V REGULATOR
+13V REGULATOR
+13V REGULATOR
+13V REGULATOR
Q307, 308
ZERO LEVEL DETECT
R
CN903
BTL
L
OUT
SPEAKER
25A
32V
F901
GND
REM
+12V
(CHASSIS)
CAM001
CAM002
(CHASSIS)
CAM003
(CHASSIS)
CAM004
(CHASSIS)
CAM005
(CHASSIS)
15
6
12
J
17
3
G
K
13
4
F
5
2
7
C
H
I
11
14
16
19
E
9
L
B
8
A
10
D
18
1
+
–
+
–
XM-N502
XM-N502
10
10
4-3. PRINTED WIRING BOARD - MAIN Board -
•
: Uses unleaded solder.
Note: When replacing the Q110, Q111, Q210 and Q211 on the MAIN board, refer
to “NOTE FOR REPLACEMENT OF THE TRANSISTORS” on page 2.
9
16
8
1
R211
R212
R213
R214
R215
R216
R217
R218
R219
R220
R221
R222
R223
R224
R225
R226
R227
R228
R229
R230
R231
R233
R234
R235
R236
R237
R238
R239
R240
C204
R241
C205
R242
R243
R245
R246
R247
C210
C212
JC2
C213
JC3
JC4
JC5
C215
JC6
C216
JC7
C217
JC8
C218
JC9
C219
C224
JC12
JC13
JC14
JC15
JC16
JC17
JC19
JC20
JC21
JC22
JC23
JC30
Q100
Q101
Q102
Q103
Q106
Q107
D201
D202
Q304
Q112
Q307
Q308
Q309
Q501
Q502
Q503
Q508
Q510
Q511
Q512
Q901
Q903
Q904
Q905
Q906
Q908
E
Q909
R102
R103
R106
R107
R108
R301
R302
R111
R112
R116
R117
R118
R119
R501
R502
R503
R504
R505
R506
R507
R120
R508
R121
R509
R122
R123
R124
R318
R319
R125
R126
R127
R128
R510
R129
R512
R513
R514
R320
R515
R321
R322
R516
R323
R517
R130
R324
R518
R131
R325
R901
R326
R902
R133
R327
R903
R134
R904
R135
R905
R136
R906
R137
R907
R138
R908
R139
R521
R522
R523
R524
R525
C103
R140
R528
C104
R141
C105
R142
R912
R143
R913
R914
R145
R915
R146
R916
R918
C301
R919
C303
C110
C304
C112
C113
C307
C114
C308
R920
C115
R921
R922
R923
R924
R925
C502
R926
R927
R928
C505
TH501
C311
TH502
C312
C507
TH503
C313
TH504
C508
C509
C318
R931
R932
R933
C510
TP1
TP2
TP3
TP4
C514
TP5
C515
R939
TP6
TP7
TP8
TP9
C902
C903
C904
R940
R941
C136
R942
C906
R943
C909
C523
C524
C910
C911
C912
C913
C914
C921
TP10
TP11
TP12
TP13
TP14
TP15
TP16
TP17
TP18
TP19
D101
D102
Q200
TP20
Q201
TP21
Q202
TP22
Q203
TP23
TP24
TP25
Q206
Q207
TP28
D305
D306
D307
Q212
D501
D502
D503
D512
D513
D514
D515
IC301
IC303
D904
D905
D906
D919
IC901
R202
R203
R205
R206
R207
R208
E
B
E
B
B
E
B
E
B
B
E
B
E
B
E
B
E
B
E
E
E
B
G
S
G
S
D
D
E
B
E
B
B
E
B
E
B
E B
E
B
E
B
E
R232
C208
C209
C211
C220
RV301
Q104
Q105
Q108
Q109
Q110
Q111
Q313
Q314
Q315
Q316
Q317
Q318
Q902
Q910
Q911
L901
JW10
JW11
JW12
JW13
JW14
JW15
JW16
JW17
JW18
JW19
JW20
JW21
JW22
JW23
JW24
JW25
JW26
JW27
JW28
JW29
JW30
JW31
JW32
JW33
JW34
JW35
JW36
JW37
JW38
JW39
JW40
JW41
JW42
JW43
JW44
JW45
JW46
JW47
JW48
JW49
JW50
JW51
JW52
JW53
JW54
JW55
JW56
JW57
JW58
JW59
R132
JW60
JW61
JW62
JW63
JW64
JW65
JW66
JW67
JW68
JW69
C109
JW70
JW71
C302
JW72
JW73
JW74
C111
JW75
CN901
C305
JW76
C306
JW77
CN903
JW78
JW79
C504
JW80
JW81
JW82
JW83
JW84
JW85
JW86
JW87
C317
JW88
JW89
JW90
JW91
JW92
JW93
JW94
S301
JW95
JW96
JW97
JW98
JW99
C905
C907
C908
C915
C919
C920
JW100
JW101
JW1
JW2
JW3
JW4
JW5
JW6
JW7
JW8
JW9
JW111
JW112
Q204
Q205
Q208
Q209
D303
D304
Q210
Q211
CNJ901
CAM001
CAM002
CAM003
CAM004
CAM005
CAM006
D918
T901
(GRN) (RED)
MAIN BOARD
(CHASSIS)
(CHASSIS)
E
E
E
(CHASSIS)
(CHASSIS)
E
E
A
A
A
K
K
A
K
K
E
E
(CHASSIS)
(CHASSIS)
A
K
E
E
E
E
A
K
E
E
E
E
E
E
E
E
E
K
A
K
A
K
A
A
K/K
K
A
A
K
A
K
A
E
A
A
K
K
E
E
E
E
E
E
K/K
A A
1-888-725-
12
DC/DC
CONVERTER
TRANSFORMER
1C
2C
2C
1C
1B E 2B
1B E 2B
1C
2C
2C
1C
1B E 2B
1B E 2B
8
5
1
4
8
5
1
4
POWER/PROTECTOR
(GRN): POWER ON
(RED): PROTECTOR ON
(RED): PROTECTOR ON
-2
-1
LEVEL
-1
-2
S301
LPF
(80Hz)
OFF ON
(E, IND)
(E, IND)
A
B
C
D
E
F
1
2
3
4
5
6
7
8
(E, IND)
(E, IND)
(E, IND)
GND
+12V
REM
25A
SPEAKER OUT
BTL
R
L
INPUT
L
(BTL)
R
HIGH LEVEL INPUT
SENSING POWER ON
R
L
(E, IND)
11
XM-N502
SECTION 5
EXPLODED VIEWS
1
X-2587-546-1 PLATE
TOP,
ASSY
2
4-455-383-01 HEAT SINK (MAIN)
3
3-275-728-11 SCREW (+B, TT, P-TYPE, 2XL)
4
4-262-786-01 SHEET HEAT TRANSFER S
5
4-410-613-01 SCREW (+P, TT, B-TYPE, 3XL)
6
3-273-612-01 SCREW (+B, TT, B-TYPE, 3XL)
7
4-455-386-01 PLATE,
BOTTOM
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
Note:
• -XX and -X mean standardized parts, so
• -XX and -X mean standardized parts, so
they may have some difference from the
original one.
original one.
• Items marked “*” are not stocked since
they are seldom required for routine ser-
vice. Some delay should be anticipated
when ordering these items.
vice. Some delay should be anticipated
when ordering these items.
• The mechanical parts with no reference
number in the exploded views are not sup-
plied.
plied.
• Color Indication of Appearance Parts Ex-
ample:
KNOB, BALANCE (WHITE) . . . (RED)
Parts Color Cabinet’s Color
5-1. HEAT SINK (MAIN) SECTION
• Abbreviation
CND : Canadian model
IND
CND : Canadian model
IND
: Indian model
MX
: Mexican model
1
6
6
7
6
6
3
2
MAIN board section
4
3
3
5
5
5
5
5
6
5
5
5
5
12
XM-N502
5-2. MAIN BOARD SECTION
• Bottom view
51
4-455-385-01 PANEL FRONT (E, IND)
51
4-455-385-11 PANEL FRONT (CND, AEP, UK)
51
4-455-385-21 PANEL FRONT (MX)
52
A-1944-064-A MAIN BOARD, COMPLETE (CND, AEP, UK, MX)
52
A-1944-201-A MAIN BOARD, COMPLETE (E, IND)
53
4-410-613-01 SCREW (+P, TT, B-TYPE, 3XL)
54
4-410-614-01 SCREW
(+PS,TT,3X8)
55
3-912-431-01 SCREW
(+-P)
CN903
1-780-133-11 TERMINAL BOARD (4P+3P+FUSE)
(Including Screws)
(SPEAKER OUT, 25A, REM, +12V, GND)
D303
8-719-079-00 DIODE FCH10A15
D304
8-719-079-01 DIODE FRH10A15
F901
1-576-256-11 FUSE (25 A/32 V)
Q110
8-729-024-79 TRANSISTOR
2SC5100-P (See Note)
Q110
8-729-024-80 TRANSISTOR
2SC5100-Y (See Note)
Q111
8-729-024-76 TRANSISTOR
2SA1908-P (See Note)
Q111
8-729-024-77 TRANSISTOR
2SA1908-Y (See Note)
Q210
8-729-024-79 TRANSISTOR
2SC5100-P (See Note)
Q210
8-729-024-80 TRANSISTOR
2SC5100-Y (See Note)
Q211
8-729-024-76 TRANSISTOR
2SA1908-P (See Note)
Q211
8-729-024-77 TRANSISTOR
2SA1908-Y (See Note)
Q910 6-550-341-01 FET
FKV550N
Q911 6-550-341-01 FET
FKV550N
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
MAIN board
53
53
52
51
53
53
53
53
53
53
53
53
53
53
53
53
53
(E, IND)
not supplied
not supplied
not supplied
54
54
54
54
Q210
D303
D304
Q211
54
Q110
Q111
Q910
54
Q911
54
54
F901
55
CN903
55
55
55
55
55
55
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