Power Amplifier Section - Integra DTR-5.9 Service Manual

A B
Q Q
3 7 6 3 1 5 1 5 0
SCHEMATIC DIAGRAMS-2 (SD-2)

POWER AMPLIFIER SECTION

<Note>
L
1. NC = No mount of parts.
2. SD-x : XY is short for Schematic Diagrams-x and each
Front Lch
1
sockets location, X = A to H, Y = 1 to 5.
Refer to following table about the parts displayed by mark " LIST ".
R5000 C5010
1K 47/50
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
R6070 - 6072 82 82
82
R
R6073 - 6076 100 100
100
R6710 4.7K 4.7K 4.7K
2
Front Rch
F6901, 6902 12A/250V 12A/250V 12A/250V
AUDIO ANALOG SIGNAL R5001 C5011
1K 47/50
FRONT L
FRONT R
GNDS1
+22V
VOLH
SEC1H
T E
L 1 3 9 4 2 2 9 6 5 1 3
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
w w w
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 x a o SD-5 : H2
SD-1 : H5
y
C6035 R6135
473J 8.2 (1W) R6133 C6033
i
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)
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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
Q Q
SBL
+54.5V
3 7 6
+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
u 1 6 3
SPEAKER TERMINAL PC
To NATRM-9468
SD-5 : E3
.
JL6600A
1 SPSBL
SPSL
SPL
SPC
SPR
SPSR
7 SPSBR
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F G
2 4
8 9 9
NACLA-9470
U38
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
3 1 5 1 5 0 (1/4W) 8 9 2
+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
m
c o
VOLH
IPRO
VPRO
DTR-5.9
H
2
8 9 9
NAAF-9424 (2/2)
U05
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
4 (1/4W) 9 8 2 9 9
+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