Sony STR-DA2400ES / STR-DG920 (serv.man3) Service Manual ▷ View online
STR-DA2400ES/DG920
STR-DA2400ES/DG920
25
25
2-22. PRINTED WIRING BOARD - MICON Board (Conductor Side) -
IC8011
IC8001
IC8006
R8238
R8239
C8072
C8073
R8241
R8245
R8247
R8248
R8249
C8085
C8087
R8068
C8093
C8094
C8095
C8096
R8073
R8074
R8077
R8078
R8079
R8095
R8096
R8097
R8098
R8099
JL8100
JL8101
JL8102
JL8103
JL8104
JL8105
JL8106
JL8107
JL8108
JL8109
JL8110
1
JL8111
JL8112
JL8113
JL8114
JL8115
JL8116
JL8117
JL8118
JL8119
JL8120
JL8121
JL8122
JL8123
JL8124
JL8125
JL8127
JL8128
JL8129
JL8130
JL8131
JL8132
JL8133
JL8134
C8101
JL8135
JL8136
JL8137
JL8138
JL8139
JL8140
JL8141
JL8142
JL8143
JL8144
JL8145
C8112
JL8146
C8113
JL8147
C8114
JL8148
C8115
JL8149
C8116
C8117
C8118
C8119
JL8150
JL8151
JL8152
JL8153
JL8154
C8121
JL8155
FB8006
C8122
JL8156
C8123
JL8157
JL8158
FB8009
JL8159
C8126
R8100
R8101
C8129
R8102
R8103
R8104
FB8010
JL8160
R8105
JL8161
JL8162
JL8163
JL8164
C8130
JL8165
C8131
C8132
JL8167
C8133
JL8168
C8134
JL8169
C8135
R8110
R8111
JL8170
JL8171
JL8172
JL8173
JL8174
JL8175
JL8176
JL8177
JL8171
JL8172
JL8173
JL8174
JL8175
JL8176
JL8177
JL8178
JL8179
R8120
R8121
JL8180
JL8181
JL8182
JL8183
JL8184
JL8185
JL8186
JL8187
JL8188
C8154
JL8189
C8155
C8156
C8157
C8158
C8159
JL8190
R8135
JL8191
R8136
JL8192
R8137
JL8193
JL8194
JL8194
C8160
R8139
JL8195
C8161
JL8196
C8162
C8163
JL8198
C8164
JL8199
R8145
R8146
C8173
C8174
C8175
R8150
R8151
R8153
R8157
R8158
R8165
R8178
CL8001
CL8002
CL8003
CL8004
CL8005
CL8006
R8181
R8182
R8184
R8185
R8186
R8191
R8197
R8198
JL8001
R8199
JL8002
JL8003
JL8004
JL8005
JL8006
JL8007
JL8008
JL8009
JL8200
JL8201
JL8010
JL8011
JL8012
JL8013
JL8014
JL8208
JL8015
JL8209
JL8016 JL8017
JL8018
JL8019
JL8210
JL8211
JL8212
JL8213
JL8020
JL8214
JL8021
JL8215
JL8022
JL8216
JL8217
JL8218
JL8219
JL8220
JL8221
JL8222
JL8223
JL8224
JL8225
JL8226
JL8227
JL8228
JL8229
JL8230
JL8231
JL8232
JL8233
JL8234
JL8235
JL8236
JL8237
JL8238
JL8239
JL8240
JL8241
JL8242
JL8243
JL8244
JL8245
JL8246
JL8247
JL8248
JL8249
C8026
D8002
JL8250
JL8251
D8006
JL8252
JL8253
JL8254
D8009
JL8255
JL8256
JL8257
JL8258
JL8065
R8009
JL8259
JL8066
JL8067
JL8068
R8200
JL8069
R8201
R8202
JL8260
JL8261
JL8262
JL8263
JL8070
JL8264
JL8071
JL8265
JL8072
JL8266
JL8073
JL8267
JL8074
JL8268
JL8075
JL8269
JL8076
JL8077
JL8078
C8044
R8210
JL8079
C8045
C8046
JL8270
C8049
R8215
JL8271
R8216
JL8272
JL8273
JL8080
R8024
JL8274
JL8081
JL8275
JL8082
JL8276
JL8083
JL8277
JL8278
JL8279
R8220
JL8280
R8225
JL8281
R8032
R8226
JL8282
JL8283
JL8284
R8035
JL8285
R8036
JL8092
JL8286
JL8287
JL8094
JL8288
JL8095
R8039
JL8289
JL8096
JL8097
C8064
JL8098
JL8099
R8232
A8002
A8003
1
1
5
2
2
4
3
3
2
1
3
CN8005
1
2
2
1
2
2
10
9
2
12
13
1
2
2
11
12
1
2
2
15
16
1
2
19
20
1
14
1
12
1
13
1
2
15
16
1
2
19
20
1
2
19
20
1
2
7
8
8
4
1
5
9
1
CN2003
CN2004
CN2005
CN2006
CN2010
CN2015
CN2016
CN2017
CN2021
CN2022
CN2023
CN2024
CN8004
2
10
8
9
11
1-875-881-
13
(13)
MICON BOARD
AA
AN
AM
AP
AQ
AR
AS
AT
AJ
H
Z
G
DIGITAL VIDEO
BOARD
CN3504
DIGITAL
VIDEO
BOARD
CN3000
MAIN
BOARD
CN4007
MAIN
BOARD
CN4008
MICON
DIGITAL CONN
BOARD
CN2231
MICON
DIGITAL CONN
BOARD
CN2230
MICON
DIGITAL CONN
BOARD
CN2232
CIS
BOARD
CNS801
CNS801
DISPLAY
BOARD
CNP701
CNP701
DISPLAY
BOARD
CNP702
CNP702
DISPLAY
BOARD
CNP711
CNP711
VIDEO
BOARD
CN6203
(CHASSIS)
(CHASSIS)
SIRIUS
CN8002
(CONDUCTOR SIDE)
(DA2400ES: AEP, ECE, UK)
TUNER(FM/AM)
FM 75
:
COAXIAL
ANTENNA
AM
A
B
C
D
E
F
1
2
3
4
5
6
7
8
DA2400ES: US, CND,
BR, TW/DG920
(DA2400ES: US, CND/DG920)
(DA2400ES: US, CND)
Refer to page
64 on original
64 on original
service manual
Refer to page
64 on original
64 on original
service manual
Refer to page
64 on original
64 on original
service manual
Refer to page
62 on original
62 on original
service manual
Refer to page
62 on original
62 on original
service manual
Refer to page
62 on original
62 on original
service manual
(DA2400ES: US, CND, BR, TW/DG920)
Ref. No. Location
• Semiconductor
Location
D8002 E-3
D8006 C-5
D8009 C-7
IC8001 C-7
IC8006 C-6
IC8011 C-5
D8006 C-5
D8009 C-7
IC8001 C-7
IC8006 C-6
IC8011 C-5
(Page 14)
(Page 9)
(Page 26)
(Page 14)
(Page 9)
(Page 30)
•
: Uses unleaded solder.
Ver. 1.4
STR-DA2400ES/DG920
STR-DA2400ES/DG920
26
26
IC6505
IC6506
IC6001
IC6104
IC6302
IC6101
IC6102
IC6501
IC6502
IC6503
1
24
13
12
16
9
8
8
1
14
1
8
7
16
1
9
8
16
1
9
8
8
1
4
5
1
14
8
7
B E
1
24
13
12
B E
B
E
B E
B
E
C6320
R6104
C6515
R6105
C6516
R6106
C6323
C6517
C6518
C6324
C6519
C6325
C6326
C6327
R6301
R6302
R6303
C6520
R6110
R6304
R6111
R6306
R6307
D6501
D6502
R6118
R6119
R6501
R6502
R6503
R6311
R6505
L6001
R6506
L6002
R6120
R6508
R6121
R6122
R6123
R6124
R6125
R6510
R6511
Q6001
C6011
C6012
C6013
JL6240
JL6241
JL6242 JL6243
JL6244
JL6247
JL6248
JL6249
D6003
JL6250
JL6251
R6001
JL6252
R6002
JL6253
R6003
JL6254
R6004
JL6255
R6005
R6006
R6007
R6008
R6009
JL6260
JL6261
R6011
JL6262
R6012
R6013
JL6264
R6014
JL6265
R6015
JL6266
R6016
JL6267
R6017
JL6268
R6018
JL6269
JL6270
JL6271
C6253
C6254
R6236
R6239
R6240
R6241
R6242
R6243
R6244
R6245
R6246
R6247
R6250
R6251
R6252
JL6501
JL6502
JL6503
JL6504
C6105
Q6101
C6106
Q6102
Q6103
Q6104
C6302
C6303
C6501
C6502
C6503
C6504
C6505
C6507
C6316
C6318
C6319
D6101
D6102
C6510
R6101
R6102
R6103
1
5
1
5
1
9
3
1
2
11
12
1
3
10
1
3
1
6
C6514
C6328
C6329
JW6001
JW6002
JW6003
JW6004
JW6005
JW6006
JW6007
JW6008
JW6009
JW6010
JW6011
JW6012
JW6013
JW6015
JW6016
JW6017
JW6018
JW6019
JW6020
JW6021
JW6024
JW6025
JW6026
JW6027
JW6028
JW6029
JW6030
JW6031
JW6032
JW6033
JW6034
JW6035
JW6036
JW6037
JW6038
JW6039
JW6040
JW6041
JW6042
JW6043
JW6044
JW6045
JW6046
JW6047
JW6048
JW6049
JW6050
JW6051
JW6052
JW6053
JW6054
JW6055
JW6056
JW6057
JW6058
JW6059
JW1622
JW1623
JW1624
JW1625
JW1626
JW1627
JW6060
JW6061
JW6062
JW6063
JW6064
JW6065
JW6066
JW6067
JW6068
JW6069
JW6070
JW6071
JW6072
JW6073
JW6074
JW6075
JW6076
JW6077
JW6078
JW6079
JW6080
JW6081
JW6082
JW6083
JW6084
JW6085
JW6086
JW6087
JW6088
JW6089
JW6090
JW6091
JW6092
JW6094
JW6095
JW6096
JW6097
JW6098
CN6201
C6002
C6003
CN6203
CN6204
C6004
C6005
C6006
C6007
C6008
C6009
C6010
C6014
C6015
RY6001
RY6002
RY6003
R6010
C6235
JW6100
JW6101
JW6102
JW6103
JW6104
JW6105
JW6106
JW6107
JW6108
JW6109
JW6111
JW6112
JW6113
JW6114
JW6116
JW6118
JW6119
JW6120
JW6121
JW6122
LP6001
LP6002
C6101
C6102
C6103
C6104
C6108
C6109
CN6501
CN6502
C6110
C6304
C6305
C6306
C6307
C6309
C6116
C6117
C6118
C6311
C6315
C6513
IC6206
IC6205
JW011
JW012
R6513
R6512
D6503
C6521
C6522
C6251
C6252
VIDEO BOARD
1-875-885-
AJ
AK
U
L
K
VIDEO2
BOARD
CN728
MAIN
BOARD
CN4015
DIGITAL
VIDEO BOARD
CN3200
DIGITAL
VIDEO BOARD
CN3800
MICON
BOARD
CN2005
12, 13, 14
(12, 13, 14)
(CHASSIS)
(CHASSIS)
(CHASSIS)
VIDEO 1
VIDEO IN
VIDEO 1
VIDEO OUT
BD
VIDEO IN
DVD
VIDEO IN
SAT
VIDEO IN
COMPO 2
IN
COMPO 1
IN
COMPO 3
IN
MOITOR
OUT
MONITOR
VIDEO OUT
J6004
J6005
J6002
J6001
P
B
/C
B
P
R
/C
R
Y
COMPONENT VIDEO
ASSIGNABLE (INPUT ONLY)
A
B
C
D
E
F
1
2
3
4
5
6
7
8
9
RY6001 – 6003
1
3
2
1
3
2
(DA2400ES: AEP, ECE, UK)
(DA2400ES: AEP, ECE, UK)
DA2400ES: US, CND,
BR, TW/DG920
(DA2400ES: US, CND, BR, TW/DG920)
Refer to page
66 on original
66 on original
service manual
2-23. PRINTED WIRING BOARD - VIDEO Board -
•
: Uses unleaded solder.
Ref. No. Location
• Semiconductor
Location
D6003 D-7
D6101 E-5
D6102 D-4
D6501 B-3
D6502 B-3
D6503 F-3
IC6001 D-9
IC6101 E-4
IC6102 D-4
IC6104 D-7
IC6205 F-3
IC6206 E-4
IC6302 C-5
IC6501 D-2
IC6502 C-3
IC6503 B-2
IC6505 E-2
IC6506 D-5
Q6001 E-7
Q6101 D-4
Q6102 D-4
Q6103 E-5
Q6104 D-4
D6101 E-5
D6102 D-4
D6501 B-3
D6502 B-3
D6503 F-3
IC6001 D-9
IC6101 E-4
IC6102 D-4
IC6104 D-7
IC6205 F-3
IC6206 E-4
IC6302 C-5
IC6501 D-2
IC6502 C-3
IC6503 B-2
IC6505 E-2
IC6506 D-5
Q6001 E-7
Q6101 D-4
Q6102 D-4
Q6103 E-5
Q6104 D-4
(Page 25)
(Page 14)
(Page 8)
(Page 8)
Ver. 1.4
STR-DA2400ES/DG920
STR-DA2400ES/DG920
27
27
2-24. SCHEMATIC DIAGRAM - VIDEO Board -
L
DIGITAL
BOARD
(4/4)
CN3200
VIDEO
K
DIGITAL
BOARD
(4/4)
VIDEO
CN3800
BOARD
(2/3)
CN2005
AJ
MICON
(2/3)
U
MAIN
BOARD
CN4015
10
R6010
MA2J1110GLS0
D6003
50V
10
C6002
50V
10
C6005
50V
10
C6010
50V
10
C6004
50V
10
C6007
50V
10
C6008
CH1IN1
SW1
CH1IN2
SW2
CH1IN3
GND
V+1
CH2IN1
GND
CH2IN2
GND
CH2IN3
50V
10
C6003
50V
10
C6006
50V
10
C6009
0.1
C6011
0.1
C6013
0.1
C6012
25V
47
C6014
25V
47
C6015
25V
47
C6328
25V
47
C6329
0.1
C6253
0.1
C6254
6.3V
1000
C6251
16V
100
C6252
0.
1
C6510
50V
10
C6514
50V
10
C6513
100
R6505
QB
QC
QD
QE
QF
QG
QH
GND
16
15
14
13
12
11
10
9
87654321
QB
QC
QD
QE
QF
QG
QH
GND
0.
1
C6318
0.
1
C6319
0.
1
C6320
100
R6244
100
R6245
100
R6246
100
R6247
100
R6251
0.
1
C6501
0.
1
C6502
0.
1
C6503
10k
R6501
GND
VCC
JL6501
50V
10
C6315
75
R6303
75
R6304
75
R6302
75
R6301
50V
10
C6311
50V
10
C6309
75
R6307
75
R6306
25V
47
C6235
75
R6006
75
R6005
75
R6009
75
R6008
75
R6007
75
R6001
75
R6004
75
R6002
75
R6003
JL6241
JL6242
JL6243
JL6248
JL6249
JL6250
JL6251
JL6252
JL6253
JL6254
JL6255
JL6261
JL6262
JL6264
JL6269
JL6270
JL6502
RY6001
R6110
1k
16V
C6103
100
IN
HSYNC
GND
VSYNC
VCC
R6101
330
R6103
150k
R6105
4.7k
50V
C6101
3.3
C6105
0.
1
R6111
1k
IN
HSYNC
GND
VSYNC
VCC
R6106
4.7k
16V
C6104
100
R6102
330
C6106
0.
1
50V
C6102
3.3
R6104
150k
RY6002
RY6003
NC
V+
V_OUT
GND
JL6244
6.3V
C6109
1000
1k
R6012
0
R6239
0
R6240
0
R6241
0
R6242
R6243
0
JL6265
JL6266
JL6267
JL6240
JL6268
JL6271
JL6503
50V
10
C6304
16 15 14 13 12 11 10
9
8
7
6
5
4
3
2
1
M.OUT
SW5
TV
SW3
LD
SW4
V3
VEE
75
R6017
75
R6015
75
R6018
50V
10
C6307
100
R6252
25V
47
C6110
25V
47
C6108
CH3IN3
GND
CH3IN2
V-1
CH3IN1
V-2
GND
CH3OUT2
V+2
CH2OUT
PS
CH1OUT
R6119
75
R6118
75
R6120
75
25V
C6117
47
25V
C6118
47
25V
C6116
47
MA2J1110GLS0
D6101
MA2J1110GLS0
D6102
100
R6250
JL6260
12P
CN6203
1
3
4
5
6
7
8
9
9P
CN6201
CVBS IN
GND
2
NC
CY IN
GND
CB IN
GND
CR IN
GND
R6121
300
R6122
300
R6123
300
75
R6236
75
R6506
0
R6013
0
R6016
0
R6014
R6124
330
R6125
330
2SC3052EF-T1-LEF
Q6103
2SC3052EF-T1-LEF
Q6104
47k
R6011
220
R6502
220
R6503
VIN3
SW1
VIN2
MUTE2
VOUT2
GND2
GND1
10k
R6508
0.
1
C6515
0.
1
C6516
75
R6510
47p
C6517
1
2
3
3P
CN6501
0.
1
C6518
0.
1
C6519
0.
1
C6520
JL6504
1
2
3
1
2
3
1
2
3
4
5
6
6P
CN6204
J6002
3P
9P
J6001
VC_SEL
VC_SEL2
VC_SEL2
VC_SEL
COMP_ON/OFF
COMP_ON/OFF
16V
47
C6521
16V
47
C6522
VIDEO BOARD
1
3
4
5
6
7
8
+3.3V_AVIDEO
2
NC
GND
CR_OUT
GND
CB_OUT
GND
CY_OUT
8P
CN6502
R6511 0
1
2
3
4
5
6
7
8
9
10
11
12
C_MON MUTE
COM2 DATA
COM2 CLK
V595 LAT
V595 OE
M MUTE
VC MUTE
DM GND
DM VIDEO
DM GND
V DET(A23)
COMPO DET(A23)
GND
VIDEO3
GND
NJM2533M(TE2)
IC6505
IC6505
VIDEO INPUT SELECTOR
5
6
7
8
4
3
2
1
VIN_1
SW1
VIN_2
NC
S-OUT
RST
CLK
LAT
OE
S-IN
QA
VCC
SN74HC595ANSR
IC6503
IC6503
DATA DECODER
SN74HC595ANSR
IC6502
IC6502
DATA DECODER
9
87654321
16
15
14
13
12
11
10
S-OUT
RST
CLK
LAT
OE
S-IN
QA
VCC
14
13
12
11
10
89
7654321
TC74HCT7007AF(EL)
IC6501
IC6501
LEVLE SHIFT
NJM2279M-TE2
IC6506
IC6506
VIDEO SWITCH
14
13
12
11
10
89
7654321
V+
NC
VOUT1
MUTE1
VIN1
SW2
V-
NJM2586AM
IC6104
IC6104
VIDEO SWITCH
24
13
14
15
16
17
18
19
20
21
22
23
9
8
7
6
5
4
3
2
11
2
11
10
CH1IN1
SW1
CH1IN2
SW2
CH1IN3
GND
V+1
CH2IN1
GND
CH2IN2
GND
CH2IN3
RT1N441C-TP-1
Q6102
INVERTER
RT1N441C-TP-1
Q6101
INVERTER
LA7213
IC6101
SYNC SEPARATOR
IC6101
LA7213
IC6102
SYNC SEPARATOR
IC6102
1
2
3
4
5
1
2
3
4
5
Q6103, 6104
BUFFER
24
13
14
15
16
17
18
19
20
21
22
23
12
11
10
987654321
CH3IN3
GND
CH3IN2
V-1
CH3IN1
V-2
GND
CH3OUT2
V+2
CH2OUT
PS
CH1OUT
NJM2586AM
IC6001
IC6001
VIDEO INPUT SELECTOR
2SC3052EF-T1-LEF
Q6001
RELAY DRIVE
IC6205
KIA7805API-U/PF
COM
I
O
+5V REGULATOR
IC6205
I
O
G
TA79005SB
IC6206
-5V REGULATOR
IC6206
+12V
NC
GND
+7V
VIDEO GND
-7V
NJM2595M-TE2
IC6302
IC6302
VIDEO INPUT SELECTOR
V2.IN
SW2
V2.OUT
GND
V1.IN
SW1
V1.OUT
VCC
C6305 10 50V
C6306 10 50V
C6507
47p
C6316
100p
C6327
100p
C6326
100p
C6325
100p
C6324
100p
C6323
100p
R6311 0
MA2J1110GLS0
D6501
MA2J1110GLS0
D6502
C6505 4700p
4700p
C6504
10uH
L6001
10uH
L6002
Y
P
B
/C
B
P
R
/C
R
COMPO 1
IN
Y
P
B
/C
B
P
R
/C
R
COMPO 2
IN
COMPONENT
VIDEO
ASSIGNABLE
(INPUT ONLY)
Y
P
B
/C
B
P
R
/C
R
COMPO 3
IN
Y
P
B
/C
B
P
R
/C
R
MONITOR
OUT
VIDEO 1
VIDEO IN
BD
VIDEO IN
VIDEO 1
VIDEO OUT
DVD
VIDEO IN
MONITOR
VIDEO OUT
SAT
VIDEO IN
(CHASSIS)
(CHASSIS)
(CHASSIS)
J6005
3P
J6004
3P
J
4
B
16
6
9
11
D
N
15
H
L
10
K
17
3
5
12
C
F
18
M
1
19
E
8
G
14
A
2
13
I
7
BOARD
CN728
AK
VIDEO2
Refer to page
67 on original
67 on original
service manual
JW012
JW001
R6513
1
R6512
1
RB060M-30TR
D6503
(DA2400ES: AEP, ECE, UK)
(DA2400ES: AEP, ECE, UK)
(DA2400ES: AEP, ECE, UK)
DA2400ES: US,
CND, BR, TW/DG920
DA2400ES: US,
CND, BR, TW/DG920
(Page 16)
(Page 13)
(Page 13)
(Page 22)
Ver. 1.4
STR-DA2400ES/DG920
STR-DA2400ES/DG920
28
28
2-25. PRINTED WIRING BOARD - SURR SPEAKER Board -
1
6
1
5
1
6
C1501
C1502
C1503
C1504
C1505
RY1501
RY1502
RY1503
R1501
R1502
R1503
R1504
R1505
R1506
R1511
R1514
R1515
R1516
R1517
R1518
R1519
L1501
L1502
L1503
L1504
L1505
JW1500
JW1502
JW1503
JW1505
TB1501
TB1503
TB1503
JW1506
TB1502
TB1504
TB1504
JW1507
JW1508
JW1510
JW1511
JW1512
JW1513
JW1514
JW1516
JW1517
JW1518
JW1519
JW1520
JW1521
JW1522
JW1523
CN1501
CN1502
CN1503
B E
B
E
B
E
Q1501
C1506
Q1502
C1507
Q1503
C1508
C1509
D1501
D1502
D1503
R1507
R1508
R1509
R1510
R1512
R1513
C1551
CL1501
CL1502
CL1503
CL1504
CL1505
CL1506
CL1507
CL1508
CL1509
CL1510
CL1515
CL1516
CL1517
CL1518
CL1519
CL1520
CL1521
JL1501
CL1522
JL1502
CL1523
JL1503
CL1524
JL1504
CL1525
JL1505
CL1526
JL1506
CL1527
CL1529
CL1530
R1526
R1527
R1528
R1529
C1526
C1527
C1528
C1529
R1530
C1530
SURR SPEAKER BOARD
1-875-899-
13
(13)
SURROUND
BACK R
SURROUND
R
SURROUND
L
SURROUND
BACK L
(CHASSIS)
(CHASSIS)
(CHASSIS)
RY1501 – 1503
-2
-1
S
Y
AC
MAIN
BOARD
CN605
MAIN
BOARD
CN603
MAIN BOARD
W400, W500, W550,
W650, W700
A
B
C
D
E
1
2
3
4
5
6
(DA2400ES: AEP, ECE, UK, BR, TW)
(DA2400ES: AEP, ECE, UK, BR, TW)
(DA2400ES: AEP, ECE, UK, BR, TW)
SPEAKERS
(DA2400ES)
(DG920)
(DG920)
(DA2400ES)
(DG920)
(DG920)
SPEAKERS
CENTER
Ref. No. Location
• Semiconductor
Location
D1501 D-1
D1502 D-4
D1503 C-5
Q1501 D-3
Q1502 D-5
Q1503 D-5
D1502 D-4
D1503 C-5
Q1501 D-3
Q1502 D-5
Q1503 D-5
(Page 14)
(Page 14)
(Page 14)
•
: Uses unleaded solder.
Ver. 1.4
Click on the first or last page to see other STR-DA2400ES / STR-DG920 (serv.man3) service manuals if exist.