TX-SR308 HT-R280/ 380/ C230
SCHEMATIC DIAGRAMS-4a
AMP(Power) Section
TX-SR308 HT-R280/ 380/ C230
A
1
2
3
4
5
B
C
D
E
F
G
H
6
7
8
I
J
K
IPRO
VPRO
VOLH
SEC1H
R_OUT
C_OUT
SL_OUT
GND_AMP
SL
R
C
L
SW_OUT
SR_OUT
SR
SW
HPDET
HP_GND
L_OUT
+B1H_B
SPRLCS
SPRLF
S1L-
S1L+
-B1H_B
SEC1H
S1_GND
L
C
R
SL
SR
SW
IPROTECT
PROTECT
VOLH
+22V
S1H+
S1H-
SPRLCS
SPRLB_SPB
SPRLF
HPDET
HPR
SRG
CG
SLG
FRG
FLG
SWG
+22V
HPL
+3.3VMPU
THERMAL
GNDDG2
SEC2_2
SEC2_1
SEC3_1
FLAC1
FLAC2
SEC3_2
FR
SL
SL
SR
(with Heatsink)
*
(with Heatsink)
C
R
SL
L
FR
FL
C
B
*
P6911B
SP_GND
NF_GND
B_GND
D_GND
C
C
*
D
E
*
*
*
*
*
C
L
R
SL
SW
SWG
SRG
CG
SLG
FRG
FLG
SR
SW
SL
SW
SR
SR
SR
SW
C
L
R
SL
SR
SW
*
*
FR
FL
*
FL
NC
F6901
F6902
3uH
3uH
3uH
3uH
3uH
3uH
*
L
R
C
SPB L/R
FL/FR/SW
L(SPB)
R(SPB)
SW
A
SR
SL
SL/SR/C
Speaker output
*
FL/R
SL/SR
C
SW
0V
0V
+49V
0V
-49V
PIN NO.
1
4,5,6,7
2
-0.16V
-45V
12
9
10,11,13,14
+46V
-46V
8
*Q6001/Q6002 Terminal Voltage
0V
-0.16V
17,18
15,16
(1)
(1)
(1)N.A for TX-SR308 (Q6002)
*
*
*
EX)030:3pF 330:33pF 331:330pF 333:0.033uF
)ARE IN uF/WV.
+
ELECTROLYTIC CAPACITORS(
CIRCUIT IS SUBJECT TO CHANGE FOR IMPROVEMENT.
ARE CRITICAL FOR SAFETY.
Notes
REPLACE ONLY WITH PART NUMBER SPECIFIED.
THE COMPONENTS IDENTIFIED BY MARK
VOLTAGE(MEASUREDWITHVOLTMETER) IS DCVOLTAGE
(NO INPUT SIGNAL in HT-R340MPP)
ALL CAPACITORS ARE IN pF/50WV UNLESS OTHERWISE NOTED.
CAUTION
FOR CONTINUED PROTECTION
RATING REFER TO THE MAKING ADJACENT TO THE SYMBOL.
CE SYMBOLE INDIQUE QUE LE FUSIBLE UTLISE EST
A LENT, E POUR UNE PROTECTION PERMANENTE,N'UTILISER
QUE DES FUSIBLES DE MEME TYPE. CE DARNIER EST
INDIQUE LA QU LE PRESENT SYMBOL EST APPOSE.
THIS SYMBOL LOCATED NEAR THE FUSE INDICATES
THAT THE FUSE USED IS SLOW OPERATING TYPE
FOR CONTINUED PROTECTION AGAINST FIRE FUSE
HAZARD,REPLACE WITH SAME TYPE FUSE. FOR FUSE
AFIN D'ASSURER UNE PROTECTION
PERMANENTE CONTRE LES RISQUES
D'INCENDIE, REMPLACER UNIQUEMENT
PAR UN FUSIBLE DE MEME TYPE
ET CALIBRATION COMME INDIQUE.
ATTENTIION
AGAINST FIRE HAZARD, REPLACE
ONLY WITH FUSE OF SAME TYPE
AND RATING INDICATED.
A
V
A
V
STK-443-530-E: TX-SR308,HT-R380,HT-R538
STK-443-530-E: HT-R380
STK-442-530-E: TX-SR308/HT-R538
TO SD-3a J4
(BAAF-0341,Audio input Section)
BAAF-0341
TO SD-3a 2-H
(BAAF-0341,
Audio inputt Sectioun)
TO BAETC-0049(PART-9)
N.M
+49V
-49V
Q6001/Q6002
*
*
N.M
N.M
SPRLF
SPRLCS
SPRLCS
SPRLB_SPB
SPRLF
Speaker B
FR(SPB)
FL(SPB)
output
E
D
C
B
A
STK-442-530-E
MDD
MDC
MPP
MMR
MMQ
MMO
P6001
C6901
C6902
F6901
F6902
Q6002
J6477
C6088
C6089
102J
C6087
C6084
C6083
C6082
C6081
C6080
NTM-10PDML
MDC
MDF
STK-443-530-E
NTM-12PDML
MMO
MDD
MPP
472J
102J
102J
472J
472J
HT-R380/ HT-R280
TX-SR308 / HT-R538
HT-RC230
8200u
63V
8200u
56V
8200u
63V
8200u
56V
8A
125V
R6316
J6455
Q6057
DEL
*
R6322
47(1W)
22(1W)
D_GND
+22V
NOT USE
TO SD-9 K4
(BADG-0364 MPU Section)
BAETC-0343
NC
P6900B(BLK)
TO SD-7 C-8
(BAVD-0375,
Video Section)
TO SD-3a A-7
(
BAAF-0341,Audio
Input Sectilon)
BAETC-0345
N.C
C6120 NC
C6053
472K
R6103
33K
R6710
5.6K
R6709
5.6K
R6123
47K
R6113
47K
R6122
47K
R6112
47K
R6121
47K
R6111
47K
R6120
47K
R6101
33K
R6091
NC
C6051
472K
R6102
33K
R6092
NC
C6052
472K
D6011
NC
D6012
NC
D6010
NC
R6090
NC
C6050
472K
R6501
220K
R6502
220K
R6060 0.22(2W)
R6062 0.22(2W)
C6103
47/50
C6101
100/63
C6102
100/63
R6020
56K
R6022
56K
R6021
56K
R6061
0.22(2W)
C6121
NC
C6122
NC
R6208
33K
C6106
47/50
R6210
(1W)
100
R6209
(1W)
100
C6104
100/63
R6023
56K
C6123
NC
D6704
UDZS3.3B
C6107
100/63
C6108
100/63
R6013
1K
R6011
1K
R6012
1K
R6010
1K
R6067
0.22(2W)
D6021
KDS4148U
R6114
47K
R6124
47K
D6024
KDS4148U
R6117
47K
D6027
KDS4148U
R6127
47K
C6054
472K
R6104
33K
R6107
33K
C6057
472K
R6014
1K
R6017
1K
R6027
56K
R6024
56K
C6127
NC
C6124
NC
R6147
(1W)
8.2
D6022
KDS4148U
D6020
KDS4148U
R6110
47K
R6203
33K
R6204
(1W)
100
R6230
15
R6130
15
R6231
15
R6131
15
R6232
15
R6132
15
R6233
15
R6133
15
R6234
15
R6134
15
R6237
15
R6137
15
C6032
220/25
C6031
220/25
C6037
220/25
R6219
220K
C6092
1/50
D6034
UDZS3.3B
P6901A
1
C6040
030D
C6041
030D
C6042
030D
C6043
030D
C6047
030D
C6044
030D
E6001
L6000
L6001
L6002
L6003
L6004
L6007
P6002
5
3
4
2
1
Q6010
2SC2240-BL
Q6012
2SC2240-BL
Q6011
2SC2240-BL
Q6013
2SC2240-BL
Q6014
2SC2240-BL
Q6017
2SC2240-BL
D6007
NC
D6008
NC
R6205
(1W)
100
R6903
47K
R6902
1K
C6030
220/25
R6050
120K
R6040
120K
R6041
120K
R6051
120K
R6052
120K
R6042
120K
R6030
2.2K
R6032
2.2K
R6031 2.2K
R6043
120K
R6053
120K
C6033
220/25
C6034
220/25
R6057
120K
R6047
120K
R6033
2.2K
R6034
2.2K
R6037
2.2K
R6063 0.22(2W)
R6054
120K
D6052 KDS4148U
R6197
(1/2W)
8.2
Q6053
KRC105S
Q6055
KRC105S
R6064 0.22(2W)
C6706
10/50
D6023
KDS4148U
R6218
10K
R6211
33K
Q6024
2SA1163-BL
R6217
47K
D6031
1SS133
D6032
1SS133
Q6022
2SC2240-BL
C6090
100/25
R6215
NC
C6091
1/50
D6033
UDZS3.3B
R6216
220K
C6093
104Z
R6213
10K
Q6021
2SA1163-BL
R6214
47K
P6902A
1
R6044
120K
Q6002
1
+Vcc
2
-Vcc
3
GND
4
Ch1+RE
5
Ch1-RE
6
Ch2-RE
7
Ch2+RE
8
-PRE
9
+PRE
10
Ch1 IN
11
Ch1 NF
12
BIAS
13
Ch2 NF
14
Ch2 IN
15
Ch3 IN
16
Ch3 NF
17
Ch3+RE
18
Ch3-RE
C6901
LIST
+
C6902
LIST
+
J6477
R6307
(1W)
470
Q6052
KRC105S
Q6057
KRC105S
Q6051
KRC105S
J6455
R6070
56K
R6080
12K
R6072
56K
R6082
12K
R6071
56K
R6081
12K
R6073
56K
R6083
12K
R6074
56K
R6084
12K
R6077
56K
R6087
12K
R6100
33K
Q6023
2SC2240-BL
Q6001
1
+Vcc
2
-Vcc
3
GND
4
Ch1+RE
5
Ch1-RE
6
Ch2-RE
7
Ch2+RE
8
-PRE
9
+PRE
10
Ch1 IN
11
Ch1 NF
12
BIAS
13
Ch2 NF
14
Ch2 IN
15
Ch3 IN
16
Ch3 NF
17
Ch3+RE
18
Ch3-RE
R6141
(1W)
8.2
R6140
(1W)
8.2
R6143
(1W)
8.2
R6142
(1W)
8.2
R6144
(1W)
8.2
D6051 KDS4148U
D6055 KDS4148U
D6057 KDS4148U
R6316
(1/2W)
10
D6902
1SS352
1
2
C6911
102J
Q6707
2SC2712-GR
P6900B
1
J6003
2CH-TYPE
P6901B
1
P6902B
1
R6306
(1W)
470
R6327
(1W)
470
JL954B
9
8
7
6
5
4
3
2
1
RL607
5
2
6
1
3
4
C6094
104Z
C6088
102J
C6089
102J
C6082
102J
C6083
102J
C6087
102J
C6077
103J
C6074
103J
C6073
103J
C6072
103J
C6080
102J
C6070
103J
C6081
102J
C6071
103J
C6009
333J
C6020
471J
C6027
471J
C6024
471J
C6023
471J
C6022
471J
C6021
471J
C6060
473J
C6061
473J
C6062
473J
C6063
473J
C6067
473J
C6064
473J
C6084
102J
C6111
103J
C6112
103J
C6115
103J
C6117
103J
R6322
RL691
4
3
5
2
1
RL692
5
3
4
1
2
D6901A
RAD-083
6
5
R6303
(1W)
470
RL601
5
2
6
1
3
4
RL602
5
2
6
1
3
4
RL603
5
2
6
1
3
4
RL605
5
2
6
1
3
4
R6305
(1W)
470
R6309
(1W)
470
R6310
(1W)
470
R6337
(1W)
470
R6304
(1W)
470
R6308
(1W)
470
D6901
D5SBA20
4
2
1
3
P6001
13
12
6
11
5
10
4
9
3
8
2
7
1
14
SL
R
C
SR
SW
L
D6053
KDS4148U
C6113
103J
R6252
(1/2W)
390
R6251
(1/2W)
390
R6302
33
JL605B
1
2
3
4
5
JL600A
1
2
3
4
5
6
7
JL600B
7
6
5
4
3
2
1
C6912
334J/50V
C6913
334J/50V
C6915
334J/50V
C6914
334J/50V
C6014
47/50
C6013
47/50
C6105
100/63
C6017
47/50
C6010
47/50
C6011
47/50
JL603B
9
8
7
6
5
4
3
2
1
JL603A
1
2
3
4
5
6
7
8
9
C6012
47/50
J6259
MAIN_GND
J4315
J4314
JL501A
3
2
1
Q6380
LM61CIZ
1
G
2
O
3
V
TP631
C6630
NM
Q6380A
1
2
C6631
NM
JL952A
NSCT-3P894
1
2
3
P960
1
JL954A
9
8
7
6
5
4
3
2
1
P959
1
JL951A
NSCT-5P898
1
2
3
4
5
P953
P956
P955
P961
1
P958
1
P957
1
P954
P952
P951
P950
U0010
AMP (IC), ASP PC BOARD BAAF-0341
U0010
TRANS TRM PC BOARD
BAETC-0345
U0010
THERMAL SENSER PC BOARD
BAETC-0343
SPRLB_SPB
S1L+
S1L-
GNG AMP
GNG AMP
GNG AMP
TO SD-3a J7
(BAAF-0341,Audio input Section)
P6901(RED)
P6902(WHITE)
P6901(RED)
P6902(WHITE)
P6900(BLK)
ADD
ADD
ADD
ADD
ADD
DEL
DEL
DEL
DEL
DEL
TO SD-11a E-3
(
POWER TRANS TRM)
DC Canadian model
DD USA model
DF Taiwanese model
MO Saidi Arabian model
MQ Hong kong model
PA Australian model
PB U.K. model
PP
MP CE(European) country model
MR Chinese model
JJ Japanese model
NOTE
DEL:Deletion
ADD:Addition
AUDIO ANALOG SIGNAL
FRONT L
FRONT R
