Onkyo TX-SR302, Service Manual

Page: 18 / 67

SCHEMATIC DIAGRAMS-4
POWER AMPLIFIER SECTION
TX-SR302 TX-SR302
P6011
TO NAAF-7866
JL6805A
TO NAETC-7870
P6931
TO NAETC-7868
JL6804A
TO NAETC-7870
JL6803A
TO NAETC-7870
JL6952A
TO NAPS-7878
JL6951A
TO NAPS-7878
F6901
F6902
RL6901
RL6902
D6903
RS603M
RBV602
D5SBA20 D6903, 6904:
D6904
D6703
MTZJ5.1B
D6704
MTZJ5.1B
0.1V
0V
24V
0.8V
24V
0V 0V
0.05V
50V
48.9V
48.9V
0.8V
-48.9V
-0.5V
0.5V
1.1V
-1.1V
-0.5V
1V
0.2V
-0.3V
-0.3V
48.9V
0V
0V
0.5V
-48.9V
-0.5V
0.5V
1.1V
-1.1V
-0.5V
1V
0.2V
-0.3V
-0.3V
48.9V
0V
0V
0.5V
-48.9V
-0.5V
1.1V
-1.1V
-0.5V
1V
0.2V
-0.3V
-0.3V
48.9V
0V
0V
0.5V
-48.9V
-0.5V
1.1V
-1.1V
1V
0.2V
-0.3V
48.9V
0V
0V
-48.9V
-0.5V
0.5V
1.1V
-1.1V
1V
0.2V
-0.3V
48.9V
0V
0V
0.5V
Q6901
Q6701 Q6702
Q6602 Q6603 Q6601
Q6034
Q6074
Q6024
Q6014
Q6054
Q6033
Q6073
Q6023
Q6013
Q6053
Q6032
Q6072
Q6022
Q6012
Q6052
Q6031
Q6071
Q6021
Q6011
Q6051
Q6030
Q6070
Q6020
Q6010
Q6050
R6902
1K
R6308
4.7K
R6602
1K
R6603
1K
R6601
1K
R6704
47K
R6701
22K
R6702
10K
R6710
12K
R6709
5.6K
R6706
220K
R6708
33K
R6850
390
(1/2W)
R6851
390
(1/2W)
R6306
10K
R6307
2.2K
R6054
3.9K
R6084
2.2
(1/4W)
R6074
100
(1/4W)
R6134
R6234
8.2 (1W)
R6014
3.9K
R6004
5.6K
R6034
390
R6164
33K
R6094
2.2
(1/4W)
R6154
12K
R6144
22K
R6194
330K
R6174 47K
R6184
47K
R6053
3.9K
R6083
2.2
(1/4W)
R6073
100
(1/4W)
R6133
R6233
8.2 (1W)
R6013
3.9K
R6003
5.6K
R6033
390
R6163
33K
R6093
2.2
(1/4W)
R6153
12K
R6143
22K
R6193
330K
R6173 47K
R6183
47K
R6052
3.9K
R6082
2.2
(1/4W)
R6072
100
(1/4W)
R6132
R6232
8.2 (1W)
R6012
3.9K
R6002
5.6K
R6032
390
R6162
33K
R6092
2.2
(1/4W)
R6152
12K
R6142
22K
R6192
330K
R6172
47K
R6182
47K
R6051
3.9K
R6081
2.2
(1/4W)
R6071
100
(1/4W)
R6131
R6231
8.2 (1W)
R6011
3.9K
R6001
5.6K
R6031
390
R6161
33K
R6091
2.2
(1/4W)
R6151
12K
R6141
22K
R6191
330K
R6171 47K
R6181
47K
R6050
3.9K
R6080
2.2
(1/4W)
R6070
100
(1/4W)
R6130
R6230
8.2 (1W)
R6010
3.9K
R6000
5.6K
R6030
390
R6160
33K
R6090
2.2
(1/4W)
R6150
12K
R6140
22K
R6190
330K
R6170
47K
R6180
47K
C6902
C6901
8200/56
C6701
220/6.3
C6704
1/50
C6706
100/6.3
C6044
47/50
C6043
47/50
C6042
47/50
C6041
47/50
C6040
47/50
C6906
104J
C6907
104J
C6905
334J/100
C6904
334J/100
C6034
C6234
473J
C6033
C6233
473J
C6032
C6232
473J
C6031
C6231
473J
C6030
C6230
473J
R6044
1K
IID
R6043
1K
IID
R6042
1K
IID
R6041
1K
IID
R6040
1K
IID
R6104
0.22 x 2
(2W)
R6103
0.22 x 2
(2W)
R6102
0.22 x 2
(2W)
R6101
0.22 x 2
(2W)
R6100
0.22 x 2
(2W)
D6906
D6702
D6701
D6307
D6306
D6705
D6706
D6902 D6901
D6014
D6004
D6013
D6003
D6012
D6002
D6011
D6001
D6010
D6000
R6024
R6023
R6022
R6021
R6020
P6004
TO NAAF-7866
P6003
TO NAAF-7866
P6002
TO NAAF-7866
P6001
TO NAAF-7866
P6000
TO NAAF-7866
P931
TO NAPS-7877
Q6044
Q6064
Q6043
Q6063
Q6042
Q6062
Q6041
Q6061
Q6040
Q6060
Q6703
Q6303
C6703
223Z
C6903
104J
C6920
C6708
223Z
P6906
R6380
PTFL04BE471Q
2N34B0(90)
THERMAL SENSOR
P6084
ID+
ID-
P6083
ID+
ID-
P6082
ID+
ID-
P6081
ID+
ID-
P6080
ID+
ID-
P6301
TH1 COM
JL6402B
JL6402A
NF NF
-B1 E -B1
+B1 E +B1
B+ E B+
B- E B-
E
E
E
E
E
+24V
TH1
NF
NF
-B1
-B1
+B1
+B1
B+
B+
B-
B-
NF
-B1
+B1
B+
B-
BRLD
+B1
FRLD
CSRLD
+24V
HPL
HPR
E
+24V
MPUGND
VOLH/THPRO
SEC1H
SPB
SPCS
+13VS SPF
+13VS +13VS PRO
MPUGND POWER
MPUGND +13VS
POWER POWER RLGND
REF. NO. DESCRIPTION
Q6010-6014 2SC1740S-R, S
Q6020-6024 2SC1740S-R, S
Q6030-6031 2SC5171
Q6040-6041 2SA1930
Q6032-6034 2SC5171
Q6042-6044 2SA1930
Q6050-6051 2SC5242-R, O OR MN150S-Y, P, O
Q6052-6054 MN130S-Y, P, O OR 2SC5242-O, R
Q6060-6061 2SA1962-R, O OR MP150S-Y, P, O
Q6062-6064 MP130S-Y, P, O OR 2SA1962-O, R
Q6070-6074 2SC2631-R, S
Q6601-6603,Q6901 KTC3199-GR, 2SC1740S-R, S, 2SC2458-GR
Q6701,6702 KTC3200-BL, GR OR 2SC1775A-E, F OR 2SC1845-E, F
Q6703 KTA1268-GR, BL OR 2SA992-E, F
Q6303 KTA1267-GR OR 2SA933S-R, S
NAETC-8256
RSSPE
LSSPE
CSPE
RSPE
LSPE
RSSP
LSSP
CSP
RSP
LSP
SR
SL
C
R
L
NC
NAAF-7875
NC
NC
U26
THERMAL
SENSOR
PC BOARD
U17
POWER AMPLIFIER PC BOARD
0.5V
-0.5V
-0.3V
24V
0V 0V
0.5V
0.5V
-0.5V
8A-UL, 8A-T/UL-ST2
8A-UL,
8A-T/UL-ST2
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
-0.3V
NC
NC
8200/56
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
Refer to following table about the parts displayed by mark " ".
<Note>
NC=No mount of parts.
A
1
2
3
4
5
B C D E F G H