To Natrm - Integra DTR-4.9 Service Manual

A B
SCHEMATIC DIAGRAMS-2 (SD-2)
POWER AMPLIFIER SECTION
<Note>
NC = No mount of parts. L
SD-Z : XY
Front Lch
1
Location of connected terminal in schematic diagrams.
SD-Z = Schematic diagrams-Z. X = A to H, Y = 1 to 5.
R5000 C5010
1K 47/50
Refer to following table about the parts displayed by mark " LIST ".
MODEL NO.---> DTR-4.9 DTR-5.9 DTX-5.9
TYPE---> MDD MDD MPA MJJ
A None Yes Yes Yes
Q6050 - 52 MN130S MN130S 2SC5242 2SC5242
Q6060 - 62
MP130S MP130S 2SA1962 2SA1962
Q6053 - 54
MN130S MN130S 2SC5242 2SC5242
Q6063 - 64 MP130S MP130S 2SA1962 2SA1962
2SC5242
Q6055 - 56 None MN130S 2SC5242
2SA1962
Q6065 - 66 None MP130S 2SA1962
Q5050 - 54 2SC2240 2SC2240 2SC2240
Q5055 - 56
None 2SC2240 2SC2240
C6901, 6902 10000/63 10000/63 10000/69 10000/63
R5165, 5166 None 100 100
R5175, 5176
None 100 100
R
R6070 - 6072 82 82
82
R6073 - 6076 100 100
2 100
Front Rch
R6710 4.7K 4.7K 4.7K
F6901, 6902 12A/250V 12A/250V 12A/250V
R5001 C5011
1K 47/50
AUDIO ANALOG SIGNAL
FRONT L
FRONT R
GNDS1
+22V
VOLH
SEC1H
PROTECT
Q6701, 6702 : 2SC2712-GR C
D6701, 6702 : KDS4148U
3
Center ch
+54.5V
R6701
22K R5002 C5012
1K 47/50
Q6703
2SA1163-BL Q6702
Q6701
4
VOLH
VPRO
0V
IPRO
R6903 R6902
Q6707 47K 1K
2SC2712-GR
YELLOW
P6903B S1H+ RL6902
D6901
D10XB60H
BLACK
P6900B 3
4
2
GREEN
P6904B
S1H-
RL6901
1 S1L+
2
F6901 F6901
D6903
3 LIST
D10XB60H
4
2
5
5
4
F6902
LIST
S1L-
AMPLIFIER PCB
To NAAF-9424 (1/2)
SD-1 : F5
C
GND_L GND_R
P5509B
P5507B
+53.8V
R5180
10
(1/4W)
+52.3V Q5030
2SA949Y
+1.1V
R5030 NF 7
120K GND
R5020
IN
330 0V R5230 -B1
-0.65V 120K +B1
+B
R5040
-B
2.2K R5050
4.7K
-48.2V
Q5050
-1.1V
-52.9V Q5040
2SC2229-Y
R5190
10
(1/4W)
-53.8V
Q6000, 6010 : 2SC1740S_S
Q5000, 5010, 5050 : 2SC2240-BL
+53.8V
R5181
10
(1/4W)
+52.3V Q5031
2SA949Y
+1.1V
R5031 NF 7
120K
GND
R5021
IN
0V -B1
330 R5231
-0.65V
120K +B1
+B
R5041
-B
R5051
2.2K
4.7K
-48.2V
Q5051
-1.1V
-52.9V
Q5041
2SC2229-Y
R5191
10
(1/4W)
-53.8V
Q6001, 6011 : 2SC1740S_S
Q5001, 5011, 5051 : 2SC2240-BL
+53.8V
R5182
10
(1/4W)
+52.3V Q5032
2SA949Y
+1.1V
R5032 NF 7
120K
GND
R5022
IN
-B1
330 0V R5232
-0.65V
+B1
120K
+B
R5042
-B 1
2.2K R5052
4.7K
-48.2V
Q5052
-1.1V
-52.9V
Q5042
2SC2229-Y
R5192
10
(1/4W)
-53.8V
Q6002, 6012 : 2SC1740S_S
Q5002, 5012, 5051 : 2SC2240-BL
P6901A To P6901B
GND_AMP
BLUE
+54.5V
1
P6011A
-54.5V
To P6902B
JL6603A P6600A
WHITE SPEAKER TERMINAL PCB AMPLIFIER PCB
1
P6902A

To NATRM-9468

To NAAF-9424
3 SD-5 : H2
SD-1 : H5
C6035 R6135
473J 8.2 (1W) R6133 C6033
473J
C6030 R6130 8.2 (1W)
473J 8.2 (1W) R6132 C6032
C6031 R6131 8.2 (1W) 473J
473J 8.2 (1W) R6134 C6034
C6036 R6136 8.2 (1W) 473J
473J 8.2 (1W)
D E
+B
+54.5V
SL
+1.1V
Q6030
IPRO
2SC5171
L Surround Lch
R6020
2.2
+1.0V Q6050
(1/4W) +0.6V
R6080 LIST
Q6070
R6140
0.22 2SC2240
22K
(1/4W)
R5003
1K
IDLING
-0.3V
CHECK
P6080
R6100
0.22(5W)
ID+
ID-
IDLING
ADJ.
R6040
R6090 Q6060
2K
LIST
-0.4V 0.22
R6170
(1/4W) VPRO
47K
-0.6V
VOLH
Q6040 D6000 R6180
-1.1V 2SA1930 47K
D6000, 6010 : KDS4148U
-54.5V -B
+B
+54.5V SR
+1.1V
Q6031
IPRO Surround Rch
2SC5171 R
R6021
2.2
Q6051
+1.0V
(1/4W)
LIST
+0.6V R6081
Q6071
0.22 2SC2240 R5004
R6141
(1/4W) 1K
22K
IDLING
-0.3V
CHECK
P6081 R6101
0.22(5W)
ID+
ID-
IDLING
ADJ.
R6041
R6091 Q6061
2K
LIST
-0.4V 0.22
-0.6V R6171
(1/4W) VPRO
47K
VOLH
Q6041 D6001 R6181
-1.1V 2SA1930 47K
D6001, 6011 : KDS4148U
-54.5V -B
+B
SBL
+54.5V
+1.1V
Q6032 Surround back
C IPRO
2SC5171
R6022
2.2
+1.0V Q6052
(1/4W)
+0.6V R6082 LIST
Q6072
R5005
2SC2240
0.22 1K
R6142
(1/4W)
22K
IDLING
-0.3V
CHECK
P6082 R6102
0.22(5W)
ID+
ID-
IDLING
LIST
ADJ.
A
R6042
R6092 Q6062
2K
LIST
-0.4V 0.22
-0.6V
(1/4W) R6172
VPRO
47K
VOLH
Q6042 D6002 R6182
-1.1V 2SA1930 47K
D6002, 6012 : KDS4148U
-54.5V
-B
SBR
P6901B
BLUE P6902B
Surround back
To P6901A WHITE Rch
To P6902A
R5006 C5016
1K
P5503A P5507 P5509
R L
PCB HOLD
SPEAKER TERMINAL PC
To NATRM-9468
SD-5 : E3
JL6600A
1 SPSBL
SPSL
SPL
SPC
SPR
SPSR
7 SPSBR
F G
NACLA-9470
U38
U05
DRIVER AMPLIFIER PC BOARD
+53.8V R5183
10
(1/4W)
+52.3V
Q5033
2SA949Y
+1.1V
R5033 NF 7
C5013 120K
GND
47/50 R5023
IN
0V -B1
330 R5233
-0.65V 120K
+B1
+B
R5043
-B 1
2.2K R5053
4.7K
-48.2V
Q5053
-1.1V
-52.9V
Q5043
2SC2229-Y
R5193
10
(1/4W)
-53.8V Q6003, 60103 : 2SC1740S_S
Q5003, 5013, 5053 : 2SC2240-BL
+53.8V
R5184
10
(1/4W)
+52.3V
Q5034
2SA949Y
+1.1V
R5034 NF 7
120K
C5014 GND
47/50 R5024
IN
-B1
330 -0.65V 0V R5234
120K
+B1
+B
R5044
-B 1
2.2K R5054
4.7K
-48.2V
Q5054
-1.1V
-52.9V
Q5044
2SC2229-Y
R5194
10
(1/4W)
-53.8V
Q6004, 6014 : 2SC1740S_S
Q5004, 5014, 5054 : 2SC2240-BL
+53.8V
R5185
10
(1/4W)
+52.3V
Q5035
2SA949Y
Lch
+1.1V
R5035
NF 7
120K
C5015 GND
47/50 R5025
IN
-B1
330 0V R5235
-0.65V
120K +B1
+B
R5045 -B
1
R5055
2.2K
4.7K
-48.2V
Q5055
-1.1V
-52.9V
Q5045
2SC2229-Y
R5195
10
(1/4W)
-53.8V
Q6005, 6015 : 2SC1740S_S
Q5005, 5015, 5055 : 2SC2240-BL
+53.8V R5186
10
(1/4W)
+52.3V Q5036
2SA949Y
+1.1V
R5036 NF 7
120K GND
47/50 R5026
IN
-B1
330 0V R5236
-0.65V
120K +B1
+B
R5046
-B 1
2.2K R5056
4.7K
-48.2V
Q5056
-1.1V
-52.9V
Q5046
2SC2229-Y
R5196
10
(1/4W)
-53.8V Q6006, 6016 : 2SC1740S_S
Q5006, 5016, 5056 : 2SC2240-BL
VOLH
IPRO
VPRO
DTR-4.9
H
NAAF-9424 (2/2)
AMPLIFIER PC BOARD
+B
+54.5V
R6023
+1.1V
Q6033
IPRO
2SC5171 SL
2.2
(1/4W)
+1.0V Q6053
+0.6V R6083 LIST
Q6073
2SC2240
0.22
R6143
(1/4W)
22K
IDLING
-0.3V
CHECK
P6083
R6103
ID+ 0.22(5W)
ID-
IDLING
ADJ.
R6043
2K R6093 Q6063
LIST
-0.4V
0.22
R6173
-0.6V (1/4W)
VPRO
47K
VOLH
Q6043 D6003 R6183
2SA1930 47K
-1.1V
D6003, 6013 : KDS4148U
-54.5V
-B
+B
+54.5V
+1.1V R6024
Q6034
SR IPRO
2SC5171
2.2
(1/4W)
+1.0V Q6054
R6084 LIST
+0.6V
Q6074
2SC2240
0.22
R6144
(1/4W)
22K
IDLING
-0.3V
CHECK
P6084
R6104
0.22(5W)
ID+
ID-
IDLING
ADJ.
R6044
R6094 Q6064
2K
LIST
-0.4V
0.22
(1/4W) R6174
VPRO
47K
-0.6V
VOLH
-1.1V
Q6044 D6004 R6184
2SA1930 47K
D6004, 6014 : KDS4148U
-54.5V -B
+B
+54.5V
R6025
+1.1V Q6035
IPRO
2SC5171 SBL
2.2
(1/4W)
+1.0V Q6055
+0.6V R6085 LIST
Q6075
0.22 2SC2240
R6145
(1/4W)
22K
IDLING
-0.3V
CHECK
P6085 R6105
0.22(5W)
ID+
ID-
IDLING
ADJ.
R6045
2K R6095
Q6065
LIST
-0.4V 0.22
-0.6V
R6175
(1/4W) VPRO
47K
VOLH
-1.1V
Q6045 D6005 R6185
2SA1930 47K
D6005, 6015 : KDS4148U
-54.5V -B
+B
+54.5V
R6026
+1.1V SBR
Q6036
IPRO
2SC5171
2.2
(1/4W)
+1.0V Q6056
R6086 LIST
+0.6V
Q6076
R6146 2SC2240
0.22
22K
(1/4W)
IDLING
-0.3V
CHECK
P6086 R6106
0.22(5W)
ID+
ID-
IDLING
ADJ.
R6046
R6096 Q6066
2K
LIST
-0.4V
-0.6V 0.22
(1/4W) R6176
VPRO
47K
VOLH
-1.1V
Q6046 D6006 R6186
2SA1930 47K
D60016, 6016 : KDS4148U
-54.5V -B
VOLH
IPRO
VPRO
-B
+B