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HT-R557
Ref. No. 4028
092007
SERVICE MANUAL
AV RECEIVER
MODEL HT-R557 STANDBY/ON
1
INPUT SELECTOR
2
REMOTE MODE
RECEIVER
TAPE/AMP
3
DVD
M D/CDR
CD
DOCK
VCR/DVR CBL/SAT
4 5 6 TV
AUX MULTI CH DVD
7 8 9 VCR
TAPE TUNER CD
CABLE
10 11 12
+10 0 CLR SAT
D TUN ENT
--/--- DIMMER SLEEP
CH
TV VOL DISC VOL
ALBUM
INPUT
GUIDE PREVIOUS
TOP MENU MENU
MASTER VOLUME
SP A / B MUTING
ENTER
STANDBY/ON TUNING PRESET PLAYLIST/CAT PLAYLIST/CAT
SETUP RETURN
STANDBY
LISTENING MODE
STEREO SURROUND
MULTI CH DVD VCR/DVR CBL/SAT AUX TAPE TUNER CD SETUP ENTER RETURN
AUDIO SUBTITLE RANDOM REPEAT
TEST TONE CH SEL LEVEL- LEVEL+
AUX INPUT
SETUP MIC VIDEO L AUDIO R PLAY MODE
PHONES
DISPLAY L NIGHT CINE FLTR
VCR DVD HDD
DISPLAY DIGITAL INPUT TONE STEREO LISTENING MODE DIMMER MEMORY TUNING MODE
CLEAR
RC-681M
RC-681M
HT-R557 for HT-SP904 Black model
B MDD 120V AC, 60Hz
HT-R557 for HT-SR750 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.
HT-R557
EXPLODED VIEWS-1 A060
P901 A097
x 34 pcs. A061
A096 U12 x 6 pcs. A102
A052
x 4 pcs.
A037 A093 U13
U15
A075 A109
A018 Refer to
A039
EXPLODED VIEWS-2
F6902 A022 U11 A044
P101
A043
F6901 x 2 pcs.
U16
A039
U14
A045
A044
U01 U04 A039
A045 A048 A011
U07 F901 A042 P701
A046 U03 x 6pcs.
A031 x 2 pcs. A043
U02 A030 x 2 pcs.
U08 x 4 pcs. A040 A001
A044 A053
A033 x 2 pcs. x 4 pcs.
A013 A039
x 7 pcs. A057
T901 A041
A012 A056 A073
A029 x 2 pcs.
A028 U05 A055
A050
U06
A003 A071
A072
A027
A065 A002 A083
A017 x 4 pcs. x 5 pcs. A077
x 2 pcs. A068
x 4 pcs.
HT-R557
A066
A021 U09 x 4 pcs. A089
A020 A016 x 3 pcs.
x 2 pcs. x 4 pcs.
HT-R557
EXPLODED VIEWS-2
Q6050B
x 4 pcs.
Q6050A
A049
x 10 pcs.
Q6054
Q6064
Q6053
Q6063
Q6052
Q6062
Q6051
Q6061 Q6050A
Q6050
Q6060
HT-R557
HT-R557
A B C D
BLOCK DIAGRAMS-1
AUDIO SECTION
TUNER UNIT 40
XM-RADIO
Q2001 Q2002
To ANTENNA UNIT XM BU9450KV AK4384 L 59
XM/DT IC DAC
1
MAIN R
MAIN L
SUB R
SUB L
R 60
SIRIUS SIRIUS
L L
MIC AMP 37
SETUP MIC
(FRONT) R R
MIC DETECT 36
L Q5503
FL 73
AUX INPUT
(FRONT) R
INVERTING
61
FR 74
62
INVERTING
L
CD IN
2 R
75
L
TAPE OUT C 30
R
55
L 77
TAPE IN 56
R
SL 33
53
78
54
SR 32
76
L
CBL/SAT IN SW 31
R
3 49
L
VCR/DVR OUT 50
R
L 47
REC R
VCR/DVR IN REC L
R
48
L
FRONT 45
R
CENTER 46
DVD (MULTI IN)
SUBWOOFER
71
L
SURROUND 72
R
4
67
IN1
Micro 68
FR
FL
C
Controller
LPF
LPF
LPF
LPF
HDMI
HDMI IN2 SW
OUT
31
30
32
33
36
37
1
- 2ch ADC
5 COAXIAL
2 -
DIGITAL IN Q341
1
OPTICAL DIR
2
Q301
CS42518
HT-R557
E F G H
Q5501
R2S15211FP PHONES
SELECTOR/VOLUME
POWER AMPLIFIER
19 FL
TONE +29dB
L
+
RELAY
17 FR FRONT SPEAKERS
+29dB
TONE
R
73
+
25k
7 C MUTING
+29dB
CENTER SPEAKER
25k
74 RELAY
+
25k
14 +29dB
L
25k
SURROUND SPEAKERS
75
+
SW
25k
+29dB
12 SR R
30
25k
77
+
25k
9
33
25k
78
+
25k
32
25k
76
25k
CSRL
31
FRL
25k
AMUT
25k
25k
PREOUT
SUBWOOFER
25k
25k
RI RI
INTERFACE
Q701
MICROPROCESSOR
M30624MHP
Q282 Q281
SW
SR
SL
ES29LV400 M12L16161A
FLASH MEMORY SD_RAM
LPF
LPF
LPF
4M Bit 16M bit
35
34
28
29
27
26
Q201
TMS320DA707
DSP
8ch DAC
HT-R557
A B C D E F G H
BLOCK DIAGRAMS-1
AUDIO SECTION
TUNER UNIT 40 Q5501
XM-RADIO
R2S15211FP PHONES
Q2001 Q2002 SELECTOR/VOLUME
To ANTENNA UNIT XM BU9450KV AK4384 L 59
XM/DT IC DAC
1
MAIN R
MAIN L
POWER AMPLIFIER
SUB R
SUB L
R 60
SIRIUS SIRIUS 19 FL
L L TONE +29dB
MIC AMP 37 L
+
SETUP MIC RELAY
(FRONT) R R
MIC DETECT 36 17 FR FRONT SPEAKERS
+29dB
TONE
R
L Q5503
FL 73
+
AUX INPUT
25k
(FRONT) R
INVERTING 7 C MUTING
+29dB
CENTER SPEAKER
25k
61
FR 74 RELAY
+
25k
62
INVERTING 14 +29dB
L L
CD IN
25k
2 R
75
SURROUND SPEAKERS
+
SW
25k
L +29dB
TAPE OUT 12 SR R
C 30
R
25k
55
L 77
+
TAPE IN
25k
56
R 9
SL 33
25k
53
78
+
25k
54
SR 32
25k
76
25k
L
CBL/SAT IN
CSRL
SW 31
FRL
R
3
25k
49
L
AMUT
VCR/DVR OUT
25k
50
R
25k
L 47
REC R
VCR/DVR IN REC L PREOUT
R SUBWOOFER
25k
48
L
FRONT
25k
45 RI
R RI
INTERFACE
CENTER 46
DVD (MULTI IN)
SUBWOOFER
71
L
SURROUND 72
R
4 Q701
MICROPROCESSOR
M30624MHP
67
IN1
Q282 Q281
SW
Micro
SR
68
FR
SL
FL
C
Controller ES29LV400 M12L16161A
FLASH MEMORY SD_RAM
LPF
LPF
LPF
LPF
LPF
LPF
HDMI
HDMI IN2 SW 4M Bit 16M bit
OUT
31
30
32
33
36
37
35
34
28
29