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TX-SR506
Ref. No. 4061
032008
SERVICE MANUAL
AV RECEIVER
MODEL TX-SR506
DISPLAY
INPUT SELECTOR
MULTI CH
RECEIVER MUTING
MASTER VOLUME
ON/STANDBY TUNING PRESET
AUDIO
STANDBY ZONE 2
ENTER
PURE AUDIO
LISTENING MODE
MOVIE/TV MUSIC
PURE AUDIO MULTI CH DVD VCR/DVR CBL/SAT AUX TAPE TUNER CD SETUP RETURN
AUX INPUT
PHONES SETUP MIC VIDEO L AUDIO R
ZONE 2 OFF TONE MOVIE/TV MUSIC GAME DISPLAY DIGITAL INPUT RT/PTY/TP MEMORY TUNING MODE
DIMMER
CLEAR
RC-709M
Black, Silver and Golden models
B MDD, S MDD, B MDC 120V AC, 60Hz
B MPP, S MPP, B MPB, S MPB 230V AC, 50Hz
G MGK, G MGQ, G MGR 220V AC, 50/60Hz
B MWO, S MWO, G MWT, G MWF 120/220-240V 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.
TX-SR506
EXPLODED VIEWS-1 A061
x 6 pcs. A102
P901
A037 A096 Except type
A097 x 4 pcs. P6601A
A103 x 14 pcs. U30 A052
x 31 pcs. P692
U42 A060
U36
A109
A080
P691 x 8 pcs.
A104
A013
P101 A018 x 8 pcs. U17 A046
x 3 pcs. Refer to x 2 pcs.
U37 EXPLODED VIEWS-2 A022 A072
A093 F6902
A043 Type only
U45 F6901 x 2 pcs.
A062
A031 A044 x 2 pcs.
A030 A047
U02 x 4 pcs. A039
U13 U01 U04 x 2 pcs.
A033 A048 A042
A047 U03 U10 P701
U12 F902 T901 A011 A005
A072 A043 x 18 pcs. x 2 pcs.
F901 x 2 pcs.
A040 A004
A044
x 2 pcs. A039 A074 A073
F901C A041
A044
A003 A055
A012
U11 A050 x 3 pcs.
A071
A035 x 3 pcs.
A066 A076
x 4 pcs. A039 A075
A068 A077
x 4 pcs. U14 A002
A016 A001 x 5 pcs.
TX-SR506
A067 A083
x 4 pcs. A020
x 2 pcs. A021 A039 A089
x 3 pcs.
x 5 pcs.
TX-SR506
EXPLODED VIEWS-2
Q6050B
x 6 pcs.
A049
x 14 pcs.
Q6056
Q6066
Q6055
Q6065
Q6054
Q6064
Q6053
Q6063
Q6052
Q6062
Q6051
Q6061 Q6050A
Q6050 x 2 pcs.
Q6060
TX-SR506
TX-SR506
A B C D E F G H
BLOCK DIAGRAMS-1
AUDIO SECTION
AUDIO ANALOG
Q5501
TUNER UNIT 40 R2S15211FP FRONT L
SELECTOR / TONE / VOLUME FRONT R
PHONES
57
1
MAIN R
MAIN L
AUDIO DIGITAL
SUB R
SUB L
58
POWER AMPLIFIER
19 FL
RL6600
TONE +29dB
63
MIC AMP 36 20 L
+
SETUP MIC 64 FRONT
37 17 FR
SPEAKERS
MICDET +29dB
TONE
65 Q6601 R
18
AUX IN L
+
74
(FRONT IN)
25k
66
R INVERTING 7 C
Q5606 NC
35 +29dB
RL6602 CENTER
25k
61 SPEAKER
6
73
+
Q5605 NC
25k
62
INVERTING 14 SL +29dB
L 34 L
CD IN Q5607 NC
25k
RL6603
2 R
59
15
PREOUT
SURROUND
+
75
SPEAKERS
L SUBWOOFER
25k
60 +29dB
Q5600 Q5610
TAPE OUT 12 SR Q6602 R
30
R
25k
55
11 NC
L Q5604
+
78
+29dB
TAPE IN
25k
56 L
R 9 SW
33 Q5603 NC RL6604
SURROUND BACK
25k
53
10 SPEAKERS
+29dB
+
77
Q6603 R
25k
54 Q5602 NC
4 SBL
L 32
25k
CABLE/SAT IN 51
R 5 Q5601 NC
+
76 L
25k
L 52 RL6607
2 SBR ZONE 2
VCR/DVR OUT 31 SPEAKERS
R
25k
3 L
49
80
1
Q6604 R
+
VCR/DVR IN
25k
NC
SBMUT
50
AMUT
CSRL
SBRL
Z2RL
R
FRL
29
25k
47
REC R
L
REC L
FRONT 79
25k
R 48
L
28 ZONE 2
CENTER
LINE OUT
25k
45 R
DVD SUBWOOFER Q5609 NC Q5608 NC
(MULTI IN)
46
L
SURROUND
R 71 Z2MUT
NC 38
L
SURROUND BACK 72
39
R
4 1
(DVD)
69 RI
INTERFACE RI
COAXIAL
2 70
(CBL/SAT)
67
DIGITAL IN
1
(VCR/DVR) 68 Q282 Q281
2 ES29LV160ET-70TG
OPTICAL M12L64164A-7TG
(CD) FLASH MEMORY SDRAM
SBR
(DSP ROM)
SBL
SW
SR
SL
FR
FL
C
Q701
NJM45800-D
NJM45800-D
NJM45800-D
NJM45800-D
Refer to M30626FHPFP
Q401
Q402
Q403
Q404
MAIN MICROPROCESSOR
LPF
LPF
LPF
LPF
BLOCK DIAGRAMS-2
IN1 117
116
16
31
30
32
33
36
37
35
34
28
29
27
26
22
23
21
20
115
15 113
IN2 - 14 2ch ADC
13
62
5 HDMI -
8ch DAC
63
64
Q201
D788E001BRFP266
IN3 49 1
43 DSP
42
44 139
61
46 DIR 60 141
OUT 45