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DHC-40.2
Ref. No. 4216
SERVICE MANUAL Jul, 2010
AV CONTROLLER
MODEL DHC-40.2(B)
RC-770M
Black model
B MDD 120V AC, 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.
DHC-40.2
EXPLODED VIEWS-1 A715 A703
x 6 pcs.
A279 A269 A261 A143 A137
A281 x 2 pcs. x 5 pcs. A145 x 2 pcs.
A271 A245
A273 P900 A251
x 2 pcs. A267 A241
x 8 pcs. A289
A259 x 2 pcs.
x 12 pcs. A237A A701
A263 A705
x 2 pcs. U0050
A255
x 2 pcs. U0051
A179
A264 A257 U007 U0054 x 4 pcs.
x 10 pcs. A105
x 2 pcs. Refer to
A181 T901 in
x 5 pcs. P8002
P2101 A107 EXPLODED VIEWS-2
U0041 x 6 pcs.
U011 A131
A103
P103
F2000
P906 F2001 A110
U0052 U0033
U0066
A129 A143
x 2 pcs.
A115 A133
U0040 x 4 pcs.
A144
A113
F901E F901
A125 A127 A081
A141 A119
x 3 pcs.
U0034
U0031
A135 U0064
A087
A089
A121 A083
A595 A105 x 4 pcs.
A597
DHC-40.2
x 2 pcs. A085
x 4 pcs.
A093
x 4 pcs.
DHC-40.2
EXPLODED VIEWS-2
P7501
A539 A545
x 19 pcs. P3101
U0063 A551 A543
x 3 pcs. x 3 pcs.
A531
A599
U0056
A537
U0060 x 2 pcs.
A541
U0062 A561
A535
P8641 A547
x 2 pcs.
U0061
A583
A533 A581
A571
A569
A593 A567
U0080 x 5 pcs.
A565
x 2 pcs.
A563
DHC-40.2
A591
x 3 pcs.
TX-NR708/808/1008, TX-NA708/808/1008, HT-RC270, DTR-40.2/50.2, DHC-40.2
A B C D E F G H I J K
SCHEMATIC DIAGRAMS - 1
BLOCK DIAGRAM AUDIO SECTION
except onk JJ HEADPHONES
1 TUNER UNIVERSAL
PACK PORT
POWER AMPLIFIER
Z3L MAINR
L 83 L
Z3R 1 SPEAKER TERMINALS
2 22 SL FL
TONE +29dB
R 82 R 23 SL
FRONT LEFT
for US SIRIUS_L 24
57 L Down mix : No use
SIRIUS SIRIUS SIRIUS_R
R2A15220FP MAINL
1
Tone : Use for Z3
FR
+29dB
56 R
2 20 SR
TONE
SPRLF FRONT RIGHT
19 SR
60 L MAINL
L
AUDIO IN 18
SL(DAC) 43 SL(DAC) C
(FRONT) R 61 R MAINR 43 +29dB
2 91
91
MCH SL
1
2
16 C
SPRLC CENTER
65 L L
L ADCL
53
SR(DAC) 42 SR(DAC)
PHONO (MM) Z3 17
64 R R SL/Z3L
R 54
708:Z2 mirror
90 MCH SR
+29dB
SURR
90 15
L
PHONO EQ 67 L
ADCR
0/-6/-12/-18dB
1
LEFT
39 C(DAC) 2 Ref. GND
TUNER 14 SW
( for onk JJ ) R 66 R 93 MCH C
SR/Z3R
+29dB
SURR
38 SW(DAC) 13
69 L SPRLSR
L
+
L
SUB1L
46
1
RIGHT
MAIN
SRC
TV/CD IN 92 MCH SW
2
68 R
R R 47
10
SBL/Z2L/Bi_L/LH
34
34
FL(DAC)
11
FL +29dB SUR. BACK
L 71 L
SUB1R
-6dB
/ Bi Amp
95 FL(MIX)
3 PC IN
2 12 LEFT
R 70 R inverted down mix
41 FL
SLC
1
priority terminal
41
SBR/Z2R/Bi_R/RH
8
+29dB SUR. BACK
L 73 L 40 FR
7
FR
SPRLSB
/ Bi Amp
GAME IN inverted down mix RIGHT
94 FR(MIX)
72 R
R -6dB
Z2L SBRC 6
1
35 FR(DAC)
SUB2L 2
75 L L 32 LW/LH/Z3
L Z2L 97 SBL
+29dB
Front Wide/Z2
2 SBL/Z2L/Bi_L/LH
CBL/SAT IN Z2 LEFT
74 R R 33 SBL/LH/LW(DAC) 44 SBL(DAC)BiAMP 3 SBL
R only 9chModel
SUB2R
62 75 BiAmp 37 Bi-AmpL or 708Z2L
SBLC 4
79 L 64
L 1
+20dB
RW/RH/Z3
+29dB
VCR/DVR OUT
Z2R 96 SBR Z2R 2 Front Wide/Z2
SPRLFW
78 R
RIGHT
SUB1 should be always ON.
SBR/RH/RW(DAC) 45 SBR(DAC)BiAMP 100SBR/Z2R/Bi_R/RH
R
4 L 87 L
63