HT-R370
SCHMATIC DIAGRAMS-2 (PART-4)
POWER AMPLIFIER SECTION
HT-R370
A
1
2
3
4
5
B
C
D
E
F
G
H
6
8
I
J
K
C
R
SL
L
SEC1H
SR
IPRO
VPRO
VOLH
IPROTECT
VOLH
+22V
PROTECT
SEC1H
SW
R_OUT
C_OUT
SL_OUT
S1_GND
GND_AMP
SL
R
C
L
S1L-
SW_OUT
SR_OUT
SR
SW
SPRLCS_HP
SPRLB_S
SPRLSB_SPB
HPDET
+B1H_B
-B1H_B
S1L+
SWG
SRG
CG
SLG
FRG
FLG
S1H+
S1H-
+22V
SPRLCS_HP
SPRLF_F
SPRLSB_SPB
SPRLB_S
SPRLF_F
HPDET
HPL
HPR
L_OUT
+3.3VMPU
HP_GND
THERMAL
FR
SL
SL
SR
(with Heatsink)
(with Heatsink)
C
R
SL
L
FR
FL
C
P6911B
SP_GND
NF_GND
B_GND
TO PART-3:K6 BAAF-0002_1/2
-48.0V
D_GND
C
HP_R
*
*
*
*
*
D_GND
10A 125V
10A 125V
C
L
R
SL
SW
SWG
SRG
CG
SLG
FRG
FLG
SR
SW
SL
SW
SR
SR
BAAF-00002 2/2
SR
SW
C
L
R
SL
SR
SW
SPEAKER OUTPUT
*
*
FR
FL
FL(SPB)
FR(SPB)
+48.0V
STK-443-530-E: HT-R370
STK-442-530-E: TX-SR307
FL
NC
V
A
V
A
CAUTION
AND RATING INDICATED.
ONLY WITH FUSE OF SAME TYPE
AGAINST FIRE HAZARD, REPLACE
FOR CONTINUED PROTECTION
ATTENTIION
ET CALIBRATION COMME INDIQUE.
PAR UN FUSIBLE DE MEME TYPE
D'INCENDIE, REMPLACER UNIQUEMENT
PERMANENTE CONTRE LES RISQUES
AFIN D'ASSURER UNE PROTECTION
HAZARD,REPLACE WITH SAME TYPE FUSE. FOR FUSE
FOR CONTINUED PROTECTION AGAINST FIRE FUSE
THAT THE FUSE USED IS SLOW OPERATING TYPE
THIS SYMBOL LOCATED NEAR THE FUSE INDICATES
INDIQUE LA QU LE PRESENT SYMBOL EST APPOSE.
QUE DES FUSIBLES DE MEME TYPE. CE DARNIER EST
A LENT, E POUR UNE PROTECTION PERMANENTE,N'UTILISER
CE SYMBOLE INDIQUE QUE LE FUSIBLE UTLISE EST
RATING REFER TO THE MAKING ADJACENT TO THE SYMBOL.
HT-R370 ONLY
HT-R370 ONLY
F6901
F6902
STK-443-530-E: TX-SR307,HT-R370
3uH
3uH
3uH
3uH
3uH
3uH
HT-R370 ONLY
E
D
C
B
A
P6001
STK-442-530-E
NTM-10PDML
C6080
C6081
C6082
C6083
C6901
C6902
C6084
8200u
56V
8200u
63V
F6901
F6902
8A
10A
125V
125V
C6087
102J
472J
102J
Q6002
R6302
MDD
MDD
MDC
MDC
Destination table
TX-SR307
MPP
MMR
MMQ
MMO
*
*
L
R
C
SPB L/R
FL/FR/SW
L(SPB)
R(SPB)
SW
*
*
*
SR
SL
C
SL/SR/C
SL/SR
*
*
*
*
*
*
*
*
*
HP_L
NC
NC
*
R6197
J6352
J6353
*
*
*
*
*
*
*
C6089
C6088
J6354
J6355
J6003
R6303
R6304
R6305
R6306
Q6055
J6356
RL6005
RL6003
RL6002
RL6001
NRL-2P5A-DC12-192
J6357
MMO
STK-443-530-E
NTM-12PDML
10000u
63V
10A
125V
472J
NRL-2P5A-DC24-158
NRL-2P5A-DC24-129
HT-R370
R6071
22K
C6120 NC
RL6901
4
3
2
1
RL6902
3
4
1
2
C6902
LIST
+
R6072
22K
R6073
22K
R6083
5.6K
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
R6081
5.6K
R6102
33K
R6092
NC
C6052
472K
R6082
5.6K
D6011
NC
D6012
NC
D6010
NC
R6090
NC
C6050
472K
R6080
5.6K
R6501
220K
R6502
220K
R6060 0.22(2W)
R6062 0.22(2W)
C6103
47/50
C6101
100/63
C6102
100/63
R6020
56K
C6022
471J
R6022
56K
R6021
56K
C6021
471J
R6061 0.22(2W)
C6121
NC
C6122
NC
R6208
33K
C6106
47/50
R6210
(1W)
100
R6209
(1W)
100
C6105
100/63
C6104
100/63
R6023
56K
C6023
471J
C6123
NC
D6704
UDZS3.3B
C6060
473J
C6061
473J
C6062
473J
C6063
473J
R6141
(1W)
8.2
R6142
(1W)
8.2
C6064
473J
R6144
(1W)
8.2
C6082
102J
C6083
102J
C6072
103J
C6073
103J
C6107
100/63
C6108
100/63
D6056KDS4148U
C6116
103J
C6074
103J
R6013
1K
R6011
1K
R6012
1K
R6010
1K
C6012
47/50
C6011
47/50
C6010
47/50
C6013
47/50
P6900B
1
R6067 0.22(2W)
D6021
KDS4148U
R6114
47K
R6124
47K
D6024
KDS4148U
R6117
47K
D6027
KDS4148U
R6127 47K
R6074
22K
R6084
5.6K
C6054
472K
R6104
33K
R6077
56K
R6107
33K
C6057
472K
R6087 12K
R6014
1K
R6017
1K
C6027
471J
C6017
47/50
C6014
47/50
R6027
56K
R6024
56K
C6127
NC
C6124
NC
C6067
473J
R6147
(1W)
8.2
C6087
102J
C6077
103J
D6022
KDS4148U
C6024
471J
D6020
KDS4148U
R6070
22K
R6110
47K
R6100
33K
R6140
(1W)
8.2
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
D6901
D3SBA20
4
2
1
3
D6903
D3SBA20
4
3
1
2
C6088
102J
C6089
102J
C6081
102J
C6080
102J
C6070
103J
C6071
103J
R6219 220K
C6092 1/50
D6034
UDZS3.3B
C6912
334J/50V
C6913
334J/50V
C6915
104J
C6916
104J
P6901B
1
P6902B
1
P6901A
1
C6040
030D
C6041
030D
C6042
030D
C6043
030D
C6047
030D
C6044
030D
D6901A
2
1
4
3
E6001
F6901B
1
F6902B
1
F6901A
F6902A
JL6001A
1
2
3
4
5
6
7
8
9
JL6001B
9
8
7
6
5
4
3
2
1
JL6600A
1
2
3
4
5
6
7
JL6952B
9
8
7
6
5
4
3
2
1
L6000
L6001
L6002
L6003
L6004
L6007
P6002
5
3
4
2
1
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
Ch3 IN
16
Ch3 NF
17
Ch3+RE
18
Ch3-RE
Q6010
2SC2240-BL
Q6012
2SC2240-BL
Q6011
2SC2240-BL
Q6013
2SC2240-BL
Q6014
2SC2240-BL
Q6017
2SC2240-BL
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
P6001
13
12
6
11
5
10
4
9
3
8
2
1
14
SL
R
C
SR
SW
L
D6007
NC
D6008
NC
C6009
333J
RL6006
5
2
6
1
3
4
R6205
(1W)
100
Q6707
2SC2712-GR
R6903
47K
R6902
1K
C6911
102J
D6902
1SS352
1
2
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)
R6044
120K
R6054
120K
C6084
102J
C6111
103J
D6051KDS4148U
RL6007
5
2
6
1
3
4
C6115
103J
D6055KDS4148U
C6112
103J
D6052KDS4148U
RL6002
5
2
6
1
3
4
RL6003
5
2
6
1
3
4
D6053 KDS4148U
C6113
103J
JL6600B
7
6
5
4
3
2
1
R6197
(1/2W)
8.2
R6302
(1/2W)
22
Q6053
KRC105S
Q6055
KRC105S
Q6052
KRC105S
Q6051
KRC105S
C6901
LIST
+
JL6605B
R6064 0.22(2W)
RL6005
5
2
6
1
3
4
R6301
(1/2W)
47
R6252
(1/2W)
390
R6251
(1/2W)
390
Q6054
KRC105S
R6143
(1W)
8.2
R6306
(1W)
220
R6304
(1W)
220
R6303
(1W)
220
R6305
(1W)
220
Q6380 LM61CIZ
1
G
2
O
3
V
J6003
J6352
J6353
J6354
J6355
J6259
MAIN_GND
J6357
J6358
J6359
C6020
471J
RL6001
5
2
6
1
3
4
J6356
C6706
10/50
D6023
KDS4148U
C6094
104Z
R6218
10K
R6211
33K
Q6024
2SA1163-BL
R6217
47K
D6031
1SS133
D6032
1SS133
Q6022
2SC2240-BL
Q6023
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
HT-R370 ONLYHT-R370 ONLY
HT-R370 ONLY
HT-R370 ONLY
MDF
S1L+
S1L-
GND AMP
YES
SUBWOOFER
CIRCIT
NO
YES
YES
NO
E
D
C
B
A
NO
TX-SR307 NTM-10PDML
HT-R370 NTM-12PDML
Notes
are critical for safety
tha components identified by mark
replace only with part number specified
voltage (measured with voltmeter)is dc voltage.(no input signal)
electrolytic capacitors( ) are in (µF/50WV)
all capacitors are in ( pF/50WV) unless otherwise noted.
circuit is subject to chenge for improvement
P6001
TO PART-3:K5
BAAF-0002_1/2
TO PART-3:G2 BAAF-0002_1/2
GND AMP
15
P6900B(BLK)
BAPS-0004
P18
1
P19
1
P17
1
P15
1
P16
1
JL6952A
1
2
3
4
5
6
7
8
9
POWER AMPLIFIER PC BOARD
U001
FRONT L
FRONT R
AUDIO ANALOG SIGNAL
<Note>
1. NC = No mount of parts.
2. PART-x : XY is short for Schematic Diagrams-x and each sockets location, X = A to K, Y = 1 to 7.
TO PART-9-2:E3 BAPS-0039
TO PART-3:K4
BAAF-0002_1/2
GND_DG
HPR
SPLE
HPL
HPDET
BAETC-0040
L7203
LBC2518T2R2M
L7201
LBC2518T2R2M
L7202
LBC2518T2R2M
JL6605B
5
4
3
2
1
E7201
2 3 4
1
E7202
2 3 4
1
P7201
1
8
7
3
2
4
5
C7201
102J
C7202
223K
C7203
102J
C7204
102J
HP-JACK SENSOR
PC BOARD
U0034
5
4
3
2
1
(BLK)
POWER TORANS
PC BOARD
www . x ia o y u 1 6 3 . c o m
QQ 3 7 6 3 1 5 1 5 0
9
9
2
8
9
4
2
9
8
T E L 1 3 9 4 2 2 9 6 5 1 3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
