Onkyo TX-SR603 Service Manual page 14

A
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 - 5006
2SC2240-BL, KTC3200-BL
Q5013 - 5016
Q5030 -5036 2SA949-Y
Q5040 - 5046 2SC2229-Y
Q5050 - 5056 2SC2240-GR, BL
2
NOTE
THE COMPONENTS IDENTIFIED BY MARK
REPLACE ONLY WITH PART NUMBER SPECIFIED.
VOLTAGE (MEASURED WITH VOLTMETER)
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 (
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
B
".
!
ARE CRITICAL FOR SAFETY
IS DC VOLTAGE.(NO INPUT SIGNAL).
) ARE IN uF/WV.
TX-SR603/603E/8360
C
SL
R5113
1K
R5093
100K
51.5V
C5033
-0.1V NC
R5003 C5013
Q5003 Q5013
1K 10/50
R5013
R5023
C5003
56K
330
-0.65V R5053
101K
4.7K
C5043
220/25
Q5053
-47.5V
R5043 2.2K
-48.1V
R5063
C5023
D5003
1.2K
R5103
10/50
MTZJ5.6B
100K
R5073 R5083
DZ-5.6BSB
NC 470
SR
R5114
1K
R5094
100K
51.5V
C5034
-0.1V NC
R5004 C5014
Q5004 Q5014
1K 10/50
R5014
R5024
C5004
56K
330
-0.65V
R5054
101K
4.7K
C5044
220/25
Q5054
-47.5V
R5044 2.2K
-48.1V
R5064
C5024
R5104 1.2K
D5004 10/50
100K
MTZJ5.6B
R5074 R5084
DZ-5.6BSB
NC 470
SBL
R5115
1K
R5095
100K
51.5V
C5035
NC
-0.1V
C5015
Q5005 Q5015
R5005
10/50
1K
R5015
R5025
C5005
56K
330
-0.65V
101K R5055
4.7K
C5045
220/25
Q5055
-47.5V
R5045 2.2K
-48.1V
R5065
C5025
D5005
1.2K
R5105
10/50
MTZJ5.6B
100K
R5075 R5085
DZ-5.6BSB
NC 470
SBR
R5116
1K
R5096
100K
51.5V
C5036
NC
-0.1V
C5016
R5006 Q5006 Q5016
10/50
1K
R5016
R5026
C5006
56K
330
R5056
101K
-0.65V
4.7K
C5046
220/25
Q5056
-47.5V
R5046 2.2K
-48.1V
R5066
C5026
1.2K
D5006
R5106
10/50
MTZJ5.6B
100K
R5076 R5086
DZ-5.6BSB
NC 470
D
R5163
100 (1/4W)
52.5V
Q5033
52.0V
(
1.1V
P
C5103
C5053
10/100
47/50
C5083
040C
0V
R5033
120K
R5233 120K
R5133
R5203
C5093
18K
NC
-1.1V
101K
C5113 Q5043
10/100
R5173
-51.7V -52.2V 100
(1/4W)
R5164
100(1/4W)
52.5V
Q5034
52.0V
1.1V
C5104
C5054 P
10/100
47/50
C5084
040C R5034
0V
120K
R5234 120K
R5134
R5204
C5094
18K
NC
101K
-1.1V
C5114
Q5044
10/100
R5174
-51.7V
-52.2V 100
(1/4W)
R5165
100(1/4W)
52.5V
Q5035
52.0V
(
1.1V
C5105
P
C5055
10/100
47/50
C5085
0V 040C R5035
120K
R5235 120K
R5135
R5205
18K
NC
C5095
-1.1V
101K
C5115
Q5045
10/100
R5175
-51.7V 100
-52.2V
(1/4W)
R5166
100 (1/4W)
52.5V [65.7V]
Q5036
52.0V
(
[65.1V]
1.1V
JL
C5106
C5056
10/100
47/50
C5086
0V 040C
R5036
120K
R5236 120K
R5136
C5096 R5206
18K
NC
101K -1.1V
C5116
Q5046
10/100
R5176
100
-51.7V -52.2V
(1/4W)