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DTR-70.2
Ref. No. 4239
SERVICE MANUAL AUG, 2010
AV RECEIVER
MODEL DTR-70.2(B)
Black model RC-772C
B MDD 120V AC, 60Hz
B MMA 220-240V AC, 50/60Hz
SAFETY-RELATED COMPONENT
WARNING!!
COMPONENTS IDENTIFIED BY MARK ON THE
SCHEMATIC DIAGRAM AND IN THE PARTS LIST ARE
CRITICAL FOR RISK OF FIRE AND ELECTRIC SHOCK.
REPLACE THESE COMPONENTS WITH ONKYO
PARTS WHOSE PART NUMBERS APPEAR AS SHOWN
IN THIS MANUAL.
MAKE LEAKAGE-CURRENT OR RESISTANCE
MEASUREMENTS TO DETERMINE THAT EXPOSED
PARTS ARE ACCEPTABLY INSULATED FROM THE
SUPPLY CIRCUIT BEFORE RETURNING THE
APPLIANCE TO THE CUSTOMER.
DTR-70.2
EXPLODED VIEWS-1
U008 A557
x 3 pcs.
A553
A279
MDD type --- x 9 pcs. U0056
MMA type --- x 10 pcs. A215
A385 A287 L=10mm A183 A551
x 2 pcs. P9000 A289 F2005
F2001 P4104
A291 F2004 U0041 U0050 A193
F2000 A561
A185 MDD type only
U0051
A285
x 2 pcs. A555
A293 A181 x 6 pcs.
A261 x 3 pcs.
x 49 pcs. U0053 A191
P8002 P4008 Refer to
A694
A255 U0057 U0052 A179 "EXPLODED VIEWS-2"
A215 U0040 A141 L=60mm
L=50mm P4009 A135
P106 A137
A189 x 4 pcs.
U0075 Q9430
U011 U0054 Q9429
Q9428
U0055 A177 Q9427
A133 A131
U0062 F9402
F9401 U0071
A223 x 2 pcs.
A221 x 2 pcs.
A187 A175 A167
F9100 A163
x 4 pcs. A203
U0073 A147 x 8 pcs.
L=400mm A205
A173 x 8 pcs.
P9008
U0070 A151
A169 A158
A170 A159
x 8 pcs.
A197 A157
A165 x 3 pcs.
DTR-70.2
A139 x 3 pcs. A153 Refer to
x 2 pcs. x 4 pcs. "EXPLODED VIEWS-3"
A263
A171 A201 A161 A155
x 3 pcs. x 5 pcs. A200 x 4 pcs. x 4 pcs.
DTR-70.2
EXPLODED VIEWS-2 A031 A297
A009 x 4 pcs. x 2 pcs. A247
x 10 pcs. T901 A117
Q6062 x 4 pcs.
A296
Q6066
Q6064 A033 A295
Q6068 x 2 pcs.
U0014
Q6061 A029
A009 A119
x 8 pcs. A007 U0020 Q6061A x 2 pcs.
U0013 x 4 pcs. Q6052 A121
Q6056 A001 x 2 pcs.
Q6060 A005 Q6054 T904
Q6067 A223 A119
U0021
x 4 pcs. Q6058 x 2 pcs.
Q6063 Q6051 A087
A225 A233 A049
Q6065 x 2 pcs. x 2 pcs. A019 A121 L=40mm A085
A231 x 8 pcs. x 2 pcs. T903 x 3 pcs.
A007 x 2 pcs.
x 4 pcs. A141
Q6050 A221 Q6051A A075 L=40mm
A005 Q6060A A049
x 4 pcs. Q6057 A017
x 3 pcs.
Q6053 L=40mm A083
Q6055 A299 A298
A025 A027 x 2 pcs.
A077
Q6050A x 2 pcs.
A021
A023
x 3 pcs. F6601 A073 A079
F6602 U0086 A039
F6603
A013 A011
U0082 x 9 pcs. A069 A061 A081 P062
F6604 x 2 pcs. x 2 pcs. A003 U0088 U0055 x 4 pcs. x 4 pcs.
U0084 U0081 A071
U0085 x 4 pcs. A067
A141
U0087 L=40mm
U0012 F9301
U0083 A126
A013 x 4 pcs.
x 2 pcs. U0080 A059
A065
P061 A062
A037 A126
x 4 pcs. x 4 pcs.
A043 A053
U0010 x 3 pcs.
U0011 A057
DTR-70.2
A055 x 3 pcs.
A045
x 2 pcs. A125 A127
x 4 pcs. A125 A215
A041 L=50mm x 4 pcs. L=10mm
DTR-70.2
EXPLODED VIEWS-3
P7501
A345
P8641 A693
P3101 U0067
A691 A691 A655
A653 x 2 pcs. x 2 pcs.
U0091 U0064
A653
A647 x 2 pcs.
A645 U0063 U0066
A651 A659
x 19 pcs. x 3 pcs.
A631
A653
x 2 pcs. A638
A635
A637
A661 U0060 x 2 pcs.
A671 A607
U0062 A601
U0061 A591
A685
JL4103 A643 A681
x 2 pcs. A541 A633
A639 A613
A641 A611
A615
A605
x 4 pcs.
A603
A649
A657
x 3 pcs. A663
x 3 pcs.
DTR-70.2
TX-NR3008/ 5008, TX-NA5008, DTR-70.2/ 80.2, PR-SC5508, DHC-80.2 TX-NR3008/ 5008, TX-NA5008, DTR-70.2/ 80.2, PR-SC5508, DHC-80.2
A B C D E F G H I J K
SCHEMATIC DIAGRAMS-1 Schematic Diagram (PART-1)
AUDIO Block Diagram
BLOCK DIAGRAM AUDIO SECTION
Model No.TX-NR3008/NR5008/NA5008,DTR-70.2/80.2,PR-SC5508,DHC-80.2
1
HEADPHONES
SIRIUS ANTENNA
TUNER only DHC-**
For only DD,DC PACK
except SA*** NJU7312A
3-3-2 x2
for US MAIN L CS3318 POWER AMPLIFIER
SIRIUS TUNER DAC FL
MIX L
FL NEW 9ch Block SPEAKER TERMINALS
AMUTE FL
ch1
MAIN R +29dB
DAC FR
MIX R FRONT LEFT
FR BTL+ L
L Main
AUX1 / MIC ch14 MCH C
-12dB
-12dB
FR
DAC C
(FRONT IN) R
+29dB
C
L R FRONT RIGHT
2 PHONO EQ
+15.5dB Ana Allch ST. BTL+ R
PHONO MM
L . . ch16 Zone2 L+R(-6dB)
+15.5dB NC C
0dB
0dB
R . . +29dB
. .
MCH SL
DAC SL CENTER
L ch3 Z4L
SL
TUNER Zone3 AMUTE
( For only SA**) R
MCH SR SL
DAC SR +29dB
Z4R SURR. LEFT
SR
L ch4 ZONE4 FL
CD Zone4
R
SR
NC +29dB
SURR. RIGHT
L ch6 SP-B ZONE4 FR
3 TAPE OUT
R
SRZ4MUTE
NC SBL
L ch5 +29dB SUUR. BACK L
TAPE IN ZONE3 FL
8in4out x2ch NJU7313A
R 4-2-2 x2 BTL- comm. L
Bi AMP L
L ch7 SBR
+29dB SUUR. BACK R
AUX2 IN ZONE3 FR
R NJW1112 CS3318
MCH SBL BTL- comm. R
DAC SBL
SBL SBZ3MUTE Bi AMP R
L LH
BTL
GAME/TV IN ch8 Z3
+29dB
R
MCH SBR HIGH L
4 L Main SW 80Hz LPF
DAC SBR
BTL
SBR PLYPSVSW
-12dB/oct .
FHZ2MUTE
CBL/SAT IN ch9 Z3 RH
R
DAC LH
.
+29dB
DIRECT
LH .
.
HIGH R
L .
.
.
VCR OUT ch10
R Zone2 DAC RH
.
RH .
DIRECT .
MCH_SBR
DAC_SBR
MCH_SBL
DAC SW2
DAC_SBL
MCH_SW
DAC_SW
MCH_SR
LW
MCH_CT
.
DAC_SR
MCH_SL
DAC_FR
DAC_CT
L
DAC_SL
DAC_FL
.
VCR IN ch11 ZONE2 FL
MCH SW
R
DAC SW SP-B FL
Zone3