Onkyo TX-SR403 Service Manual page 20

A B
SCHEMATIC DIAGRAMS-3
POWER AMPLIFIER SECTION-1
1
Refer to following table about the parts displayed by mark " ".
Transistors
CIRCUIT NO. DESCRIPTION
Q5000 - 5002 2SC2240-BL
Q5010 - 5012
Q5003 - 5005
2SC2240-BL, KTC3200-BL
Q5013 - 5015
Q5030 -5035 2SA949-Y
Q5040 - 5045 2SC2229-Y
Q5050 - 5055 2SC1815-GR, BL
NOTE
2
THE COMPONENTS IDENTIFIED BY MARK ! ARE CRITICAL FOR SAFETY
REPLACE ONLY WITH PART NUMBER SPECIFIED.
VOLTAGE (MEASURED WITH VOLTMETER) IS DC VOLTAGE.(NO INPUT SIGNAL).
ALL PNP TRANSISTORS ARE EQUIVALENT TO 2SA1015-GR UNLESS OTHERWISE NOTED.
ALL NPN TRANSISTORS ARE EQUIVALENT TO 2SC1815-GR UNLESS OTHERWISE NOTED.
ALL DIODES ARE EQUIVALENT TO 1SS133 UNLESS OTHERWISE NOTED.
ELECTROLYTIC CAPACITORS ( ) ARE IN uF/WV.
ALL CAPACITORS ARE IN pF/50WV UNLESS OTHERWISE NOTED.
EX) 030- 3pF 330- 33pF 331- 330pF 333- 0.033uF
ALL RESISTORS ARE IN OHMS 1/4WATTS UNLESS OTHERWISE NOTED.
THE THICK LINES ON PC BOARD ARE THE PRINTING SIDE OF THE PARTS.
EX) PRINTING SIDE
CIRCUIT IS SUBJECT TO CHANGE FOR IMPROVEMENT.
<Note>
NC=No mount of parts.
3
4
5
C D
R5163
SL
100 (1/4W)
R5113
1K
R5093
100K
47.0V
C5033
-0.1V NC
C5103
10/63
R5003 C5013
Q5003 Q5013 C5083
1K 10/50
040C
0V
R5013 R5023
C5003
56K 330
-0.65V
101K R5053
4.7K C5043 R5233
220/16
R5133
C5093
Q5053 18K
101K
-42.5V
R5043 2.2K
-43.1V
C5113
R5063 10/63
C5023
D5003
R5103 1.2K
10/50
MTZJ5.6B
100K
R5073 R5083 -47.0V -47.5V
DZ-5.6BSB
NC 470
R5164
SR
100(1/4W)
R5114
1K
R5094
100K
47.0V
C5034
-0.1V NC
C5104
10/63
R5004 C5014 Q5004 Q5014 C5084
1K 10/50 040C
0V
R5014 R5024
C5004
56K 330
-0.65V R5054
101K
4.7K R5234
C5044
220/16
R5134
C5094
18K
Q5054 101K
-42.5V
R5044 2.2K
-43.1V
C5114
R5064 10/63
C5024
R5104 1.2K
D5004 10/50
100K
MTZJ5.6B
R5074 R5084 -47.5V
-47.0V
DZ-5.6BSB
NC 470
R5165
SB
100(1/4W)
R5115
1K
R5095
100K
47.0V
C5035
NC
-0.1V
C5105
10/63
C5015
R5005 Q5005 Q5015 C5085
10/50
1K 0V 040C
R5015
R5025
C5005
56K
330
-0.65V R5055
101K
4.7K R5235
C5045
220/16 R5135
18K
Q5055
C5095
-42.5V
R5045 2.2K 101K
-43.1V
C5115
R5065 10/63
C5025
D5005
R5105 1.2K
10/50
MTZJ5.6B
100K
DZ-5.6BSB R5075 R5085 -47.0V
-47.5V
NC 470
U17
DRIVER AMPLIIER PC BOARD
NAAF-8550
E
TO NAAF-8523 TO NAAF-8523
P5503A
48.0V
47.5V
R5183
Q5033
10
(1/4W)
1.1V
P6003A
C5053
47/50
NF
R5033
-B1
120K +B1
B+
120K B-
R5203
-1.1V NC
Q5043 R5193
10
(1/4W)
R5173
100 -48.0V
(1/4W)
48.0V
47.5V
R5184
Q5034
10
(1/4W)
1.1V
C5054 P6004A
47/50
NF
R5034
-B1
+B1
120K
B+
120K
B-
R5204
NC
-1.1V
R5194
Q5044
10
(1/4W)
R5174
100 -48.0V
(1/4W)
48.0V
47.5V
R5185
Q5035
10
(1/4W)
1.1V
P6005A
C5055
47/50
NF
R5035
-B1
+B1
120K
B+
120K
B-
R5205
NC
-1.1V
R5195
Q5045
10
(1/4W)
R5175
100
-48.0V
(1/4W)
F G
P5504A
P5019
FL R5160
100 (1/4W)
R5110
1K
R5090
100K
47.0V
C5030
-0.1V NC
C5100
10/63
R5000 C5010 Q5000 Q5010 C5080
1K 47/50 0V 040C
R5020
R5010
C5000
330
56K
101K -0.65V R5050
4.7K R5230
C5040 R5130
C5090
-1.1V
220/16 22K
Q5050
101K
-42.5V
R5040 2.2K
-43.1V
C5110
R5060 10/63
C5020
D5000 R5100 1.2K
10/50
MTZJ5.6B 100K
R5070 R5080 -47.0V -47.5V
DZ-5.6BSB
NC 470
FR R5161
100 (1/4W)
R5111
1K
R5091
100K
47.0V
C5031
-0.1V NC
C5101
C5011 10/63
R5001 Q5001 Q5011 C5081
47/50
1K 0V 040C
R5011
R5021
C5001 56K
330
R5051
-0.65V
101K
4.7K R5231
C5041
220/16
R5131
C5091
22K
Q5051
101K
-42.5V
R5041 2.2K
-43.1V
C5111
10/63
R5061
C5021
1.2K
D5001
R5101 10/50
MTZJ5.6B
100K
R5071 R5081 -47.0V
-47.5V
DZ-5.6BSB
NC 470
R5162
C
100 (1/4W)
R5112
1K
R5092
100K
47.0V
C5032
NC
-0.1V
C5102
10/63
C5012
R5002 Q5002 Q5012 C5082
10/50
1K 0V 040C
R5012 R5022
56K 330
C5002
R5052
-0.65V
101K
4.7K R5232
C5042
220/16
R5132
C5092
18K
Q5052 101K
-1.1V
-42.5V
R5042 2.2K
-43.1V
C5112
R5062
C5022 10/63
D5002
1.2K
R5102 10/50
MTZJ5.6B
100K
-47.0V -47.5V
DZ-5.6BSB R5072 R5082
NC 470
TX-SR403/8340
H
48.0V
47.5V
R5180
Q5030
10
(1/4W)
1.1V
P6000A
C5050
47/50
NF
R5030
-B1
120K +B1
B+
120K B-
R5200
22K
R5190
Q5040
10
(1/4W)
R5170
100
-48.0V
(1/4W)
48.0V
47.5V
R5181
Q5031 10
(1/4W)
1.1V
C5051
P6001A
47/50
NF
R5031
-B1
+B1
120K
B+
120K
B-
R5201
22K
-1.1V
R5191
Q5041
10
(1/4W)
R5171
100
-48.0V
(1/4W)
48.0V
47.5V
R5182
Q5032
10
(1/4W)
1.1V
C5052 P6002A
47/50
NF
R5032
-B1
+B1
120K
B+
120K
B-
R5202
NC
R5192
Q5042
10
(1/4W)
R5172
100
-48.0V
(1/4W)