Onkyo ht-r540 Service Manual page 17

A
QQ
3 7 63 1515 0
SCHEMATIC DIAGRAMS-2
POWER AMPLIFIER SECTION
1
<Note>
NC = No mount of parts.
SD-Z : XY
Location of connected terminal in schematic diagrams.
SD-Z = Schematic diagrams-Z. X = A to H, Y = 1 to 5.
NAAF-8779 (2/2)
2
U01
AMPLIFIER PC BOARD
To NAAF-8779 (1/2)
(SD-1 : G1)
TE
L 13942296513
3
NAETC-8781
U03
THERMAL SENSOR
PC BOARD
Q6380
LM61CIZ
1
G V
JL6402A
To NADG-8798
(SD-3 : D1)
4
NAPS-8780
U02
TRANS SEC. TERMINAL
PC BOARD
P6903B(YEW)
1
1
P6900B(BLK)
1
www
1
5
P6904B(GRN)
1
.
http://www.xiaoyu163.com
B
VOLH
SEC1H
GNDS1
+22V
PROTECT
R6701
22K
Q6702
Q6703
2SA1163-BL 2SC2712-GR
3
P6903B
S1H+
S1H-
P6904B
4 1
2
3
F6901
3 !
2
10A /125V
1 4
x ao
y
F6902
!
10A /125V
i
To NAAF-8779 (1/2)
(SD-1 : F-5)
http://www.xiaoyu163.com
8
Q Q
3 6 7 1 3
R6902
1K
Q6707
2SC2712-GR !
RL6901
D6901
D10XB60H
4
!
RL6902
S1L+
D6903
D10XB60H
2
4
3
u163
S1L-
.
C
2 9 9 4 2 8
+60.2V
C
+ 50.5V
R5000 C5010
1K 47/50 R5020 0V
+
-0.65V
330
R5050
4.7K
-54.5V
-60.2V
+60.2V
L
+ 50.5V
R5001 C5011
47/50 0V
1K R5021
+
-0.65V
330
R5051
4.7K
-54.5V
-60.2V
+60.2V
R
1 5 0 5 8 2 9 9 4
+ 50.5V
R5002 C5012
1K 47/50 0V
R5022
+
-0.65V
330
R5052
4.7K
-54.5V
-60.2V
To P6901B
P6901A
GND
C6901
10000/69
1
1
C6902
10000/69
m
1
P6902A
To P6902B
co
HT-R540
D
9 9
R5180
10
+1.1V R6020
Q6030
(1/4W)
2SC5171
2.2
R60
+1.0V (1/4W)
Q5030
0.2
2SA949Y (1/4
+0.6V
R5030
120K -0.3V
P6
R5230
120K ID+
ID-
R60
0.2
(1/4
R6040
2K
IDLING
-0.6V
ADJ.
Q5040
2SC2229-Y
Q6040
2SA1930
-1.1V
R5190
10 (1/4W)
R5181
10 (1/4W)
+1.1V R6021 Q6031
2SC5171
2.2
R60
(1/4W)
+1.0V
Q5031 0.2
(1/4
2SA949Y +0.6V
R5031
120K -0.3V
P60
R5231
120K ID+
ID-
R60
0.2
(1/4
R6041
2K
IDLING
Q5041
-0.6V
ADJ.
2SC2229-Y
Q6041
2SA1930
-1.1V
R5191
10 (1/4W)
R5182
10 (1/4W)
+1.1V R6022 Q6032
2SC5171
2 8 9 9
2.2
R60
(1/4W)
+1.0V
Q5032
0.2
2SA949Y (1/4W
+0.6V
R5032
120K -0.3V
P60
R5232
120K ID+
ID-
R60
0.2
(1/4
R6042
2K
IDLING
Q5042 ADJ. -0.6V
2SC2229-Y
Q6042
2SA1930
-1.1V
R5192
10 (1/4W)
To N
(
P6911B
JL6603A
To NAVD-880
(SD-5 : E