Onkyo TX-SR604 Service Manual page 19

A
SCHEMATIC DIAGRAM-3(SD-3)
POWER AMP SECTION-2
1
NAAF-8917
U19
DRIVER AMPLIFIER PC BOARD
P5503A
2
Center ch
R5000 C5010
R5020
+
47/50
1K
3
Front L ch
C5011
R5001 R5021
+
1K
47/50
4
Front R ch
R5002 C5012 R5022
+
1K
47/50
5
<Note>
SD-x:XY is short for Shcematic Diagram-x and
each socket's location, X=A to H, Y=1 to 5.
B
TO NAAF-8911 (SD-1:G4)
P5504A
P6011B COPPER BUS PLATE
+53.8V
10 (1/4W)
R5180
+52.3V
1.1V
R5030
120K
0V
330 -0.65V
R5230
120K
R5050
4.7K
-48.2V
-1.1V
-52.9V
10 (1/4W)
-53.8V R5190
+53.8V
10 (1/4W)
R5181
+52.3V
1.1V
R5031
120K
0V
330 -0.65V R5231
120K
R5051
4.7K
-48.2V
-1.1V
-52.9V
10 (1/4W)
-53.8V R5191
+53.8V
10 (1/4W)
R5182
+52.3V
1.1V
R5032
120K
0V
330 -0.65V R5232
120K
R5052
4.7K
-48.2V
-1.1V
-52.9V
10 (1/4W)
R5192
-53.8V
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.
Surround L ch
P5019
R5003
1K
Surround R ch
R5004
NFC 5
4
-B1C
1K
+B1C 3
+BC 2
-BC 1
Surround Back
L ch
R5005
NFL 5
-B1L 4
1K
3
+B1L
+BL 2
-BL 1
Surround Back
R ch
R5006
NFR 5
4
-B1R 1K
+B1R 3
+BR 2
-BR 1
TX-SR604/604E/8460
C
! ARE CRITICAL FOR SAFETY
IS DC VOLTAGE.(NO INPUT SIGNAL).
) ARE IN uF/WV.
+53.8V
10 (1/4W)
R5183
+52.3V
1.1V
R5033
120K
C5013
R5023 0V
+
47/50 -0.65V R5233
330
120K
R5053
4.7K
-48.2V
-1.1V
-52.9V
R5193
10 (1/4W)
-53.8V
+53.8V
R5184
10 (1/4W)
+52.3V
1.1V
R5034
120K
C5014
R5024
0V
+
330 -0.65V R5234
47/50
120K
R5054
4.7K
-48.2V
-1.1V
-52.9V
10 (1/4W)
R5194
-53.8V
+53.8V (1/4W)
10
R5185
+52.3V
1.1V
R5035
120K
C5015
R5025
0V
+
47/50 -0.65V R5235
330
120K
R5055
4.7K
-48.2V
-1.1V
-52.9V
10 (1/4W)
R5195
-53.8V
+53.8V
10 (1/4W)
R5186
+52.3V
1.1V
R5036
120K
C5016
R5026
0V
+
-0.65V R5236
47/50 330
120K
R5056
4.7K
-48.2V
-1.1V
-52.9V
10 (1/4W)
R5196
-53.8V
D
NFSL 5
4
-B1SL
+B1SL 3
+BSL 2
-BSL 1
NFSR 5
4
-B1SR
+B1SR 3
+BSR 2
-BSR 1
NFSBL 5
-B1SBL 4
3
+B1SBL
+BSBL 2
-BSBL 1
NFSBR 5
-B1SBR 4
+B1SBR 3
+BSBR 2
-BSBR 1