Onkyo HTP-570 Service Manual
SERVICE MANUAL
SERVICE MANUAL
7.1-CH HOME THEATER SPEAKER PACKAGE
HTP-570
Ref. No. 4135
042009
Front Speakers (L / R)
"SKF-570"
MODEL
Center Speaker
"SKC-570"
Cannot remove the speaker grill.
HTP-570(B)/(S)
Surround Speakers (L / R)
"SKR-570"
Black and Silver models
B MDD
B MDC
S MDC
120V AC, 60Hz
120V AC, 60Hz
120V AC, 60Hz
Powered Subwoofer
"SKW-570"
Surround Back Speakers (L / R)
"SKB-570"
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.
ADJUSTMENT PROCEDURE
SKW-570 : POWERED SUBWOOFER / ADJUSTMENT OF IDLING CURRENT
[When]
1. Exchange transistors (Q505 - Q519).
2. Exchange MAIN PC board ass'y (NAAF-8829).
[Procedure]
<Note> No speaker load and No input signal.
1. Short test point P631 for amplifier is under active mode.
2. Adjust the trimming resistor R544 so that the reading of multimeter becomes 52 ohm to 53 ohm.
3. Connect the DC voltmeter to test point P531. <Fig-1>
4. Connect the power cord into the AC outlet.
5. Confirm the voltage of above point after 6 minutes to 8 minutes. (Heat running)
6. When less than 3.20 mV : Readjust the trimming resistor above so that the voltage becomes 4.5 mV to 5.0 mV.
When 3.30 mV to 5.20 mV : Not necessary to adjust.
When 5.21 mV to 10.0 mV : Readjust the trimming resistor above so that the voltage becomes 5.0 mV to 5.5 mV.
When 10.1 mV to 20.0 mV : Readjust the trimming resistor above so that the voltage becomes 5.6 mV to 6.0 mV.
7. Disconnect the power cord from the AC outlet.
8. Disconnect the DC voltmeter.
HTP-570
Trimming resistor
R544
Test point
P531
Test point
P531
100 ohm
(1/4W)
<Fig-1>
DC voltmeter
MAIN PC board ass'y "NAAF-8829"
Test point
P631
Short
EXPLODED VIEWS-1
SKW-570 : POWERED SUBWOOFER
HTP-570
P901
A102
A103
A104
x 2 pcs.
A05
x 2 pcs.
A02
SP11
x 10 pcs.
A03
A06
A02
U06
U01
A101
A07
Q516
Q541
A01
A08
x 2 pcs.
A05
Q515
A07
A11
E801
See "EXPLODED VIEWS-2"
SP12
x 4 pcs.
A05
x 5 pcs.
SP13
x 2 pcs.
HTP-570
U03
T901
F901
HTP-570
EXPLODED VIEWS-2
SKW-570 : POWERED SUBWOOFER
SP08
----- SP01a/b (Subwoofer ass’y) (All) -----
----- SP02a/b (Subwoofer ass’y)
(Without AMP unit, Speaker unit and Power transformer) -----
SP03
x 4 pcs.
SP04
SP05
x 6 pcs.
SP05
x 8 pcs.
HTP-570
EXPLODED VIEWS-3
SKF-570 <L> / SKF-570 <R> / SKC-570
<Note>
Cannot remove the speaker grill.
SP27
----- SP21a-d (Speaker ass’y) -----
HTP-570
<Note>
Cannot remove the speaker grill.
----- SP41a/b (Speaker ass’y) -----
SP53
SP32a/b
Lch
TERMINAL :
White / Black
Rch
TERMINAL :
Red / Black
SP33a/b
SP23 : WOOFER
SP24 : TWEETER
SP47
x 2 pcs.
TERMINAL :
Green / Black
SP52
SP54a/b
SP43 : WOOFER
SP44 : TWEETER
"SKC-570"
SP34a/b
"SKF-570 <L>"
"SKF-570 <R>"
HTP-570
EXPLODED VIEWS-4
SKR-570 <L> / SKR-570 <R> / SKB-570 <L> / SKB-570 <R>
SP61a/SP61b SP63a/SP63b
SP64SP62
HTP-570
<Note>
Cannot remove the speaker grill.
TERMINAL :
Blue / Black
TERMINAL :
Brown / Black
TERMINAL :
Gray / Black
"SKR-570 <R>""SKR-570 <L>"
NOT MAGNETICALLY SHIELDEDNOT MAGNETICALLY SHIELDED
SP65a/SP65b SP67a/SP67b
SP68SP66
TERMINAL :
Tan / Black
HTP-570
"SKB-570 <R>""SKB-570 <L>"
NOT MAGNETICALLY SHIELDED NOT MAGNETICALLY SHIELDED
HTP-570
A
SCHEMATIC DIAGRAM
SKW-570 : POWERED SUBWOOFER
1
2
3
LINE INPUT
P301
C955
223J
E801
R301
1K
C301
C951
220/16
C952
220/16
224
R302
(MPP)
OUTPUT
LEVEL
C302
47/50
20KB
47K
R951
3.3K
POWER NEED TO CONFIRM
D951
MTZJ15C
D952
R952
MTZJ15C
(2W)
3.3K
R303
(2W)
3
2
R304
Q301(1/2)
NJM4558LD
8
4
R305
33K
27K
C303
NC
BCDEFGH
NOTE
THE COMPONENTS IDENTIFIED BY MARK ARE CRITICAL FOR SAFETY
NAAF-8829
MAIN PC BOARD
U01
47K
R307
2.2K
R306
J316
<Note>
1
REPLACE ONLY WITH PART NUMBER SPECIFIED.
VOLTAGE (MEASURED WITH VOLTMETER) IS DC VOLTAGE.(NO INPUT SIGNAL).
ALL PNP TRANSISTORS ARE EQUIVALENT TO 2SA1015-GR UNLESS OTHERWISE NOTED.
ALL NPN TRANSISTORS ARE EQUIVALENT TO 2SC1815-GR UNLESS OTHERWISE NOTED.
ALL DIODES ARE EQUIVALENT TO 1SS133 UNLESS OTHERWISE NOTED.
ELECTROLYTIC CAPACITORS ( ) ARE IN uF/WV.
ALL CAPACITORS ARE IN pF/50WV UNLESS OTHERWISE NOTED.
EX) 030- 3pF 330- 33pF 331- 330pF 333- 0.033uF
ALL RESISTORS ARE IN OHMS 1/4WATTS UNLESS OTHERWISE NOTED.
THE THICK LINES ON PC BOARD ARE THE PRINTING SIDE OF THE PARTS.
EX) PRINTING SIDE
CIRCUIT IS SUBJECT TO CHANGE FOR IMPROVEMENT.
NC : No mount of parts.
CAUTION
FOR CONTINUED PROTECTION
AGAINST FIRE HAZARD, REPLACE
ONLY WITH FUSE OF SAME TYPE
VA
AND RATING INDICATED.
ATTENTION
AFIN D'ASSURER UNE PROTECTION
PERMANENTE CONTRE LES RISQUES
D'INCENDIE, REMPLACER UNIQUEMENT
VA
PAR UN FUSIBLE DE MEME TYPE
ET CALIBRATION COMME INDIQUE.
THIS SYMBOL LOCATED NEAR THE FUSE INDICATES
THAT THE FUSE USED IS SLOW OPERATING TYPE
FOR CONTINUED PROTECTION AGAINST FIRE
HAZARD,REPLACE WITH SAME TYPE FUSE. FOR FUSE
RATING REFER TO THE MARKING ADJACENT TO THE SYMBOL.
CE SYMBOLE INDIQUE QUE LE FUSIBLE UTLISE EST
E LENT.POUR UNE PROTECTION PERMANENTE,N'UTILISER
QUE DES FUSIBLES DE MEME TYPE. CE DARNIER EST
INDIQUE LA QU LE PRESENT SYMBOL EST APPOSE.
P501B
NC
C502
NC
(1/2W)
R651
12K
D651
1SS133
C501
47/50
C527
1/50
R501
1K
R502
47K
R510
100K
R505
1K
(1/4W)
Q501
2SC2240-BL
0
C503
224J
R521
220
D501
MTZJ5.6B
R506
1K
(1/4W)
Q502
2SC2240-BL
-0.6
R522
220
R503
5.6K
Q503
2SC2240-BL
R504
2.2K
R509
1K
R527
270
C504
220/16
C505
020
R507
33K
0
R508
47
(1/4W)
R511
82
(1/4W)
Q505
2SA949-Y
Q507
2SA949-Y
2SA949-Y
070
2SC2229-Y
Q506
2SC2229-Y
R512
68
(1/4W)
Q509
C506
R515
12K
R516
12K
Q510
R513
82
(1/4W)
R514
82
R541
820
R542
150
R544
100B
ADJUST.
IDLING
(1/4W)
R517
3.3K
1
-1
Q541
2SC3423
Q517
2SA933S-S
R543
180
-1.6
C517
10/50
C514
101
Q518
2SC2235-Y
1.6V
C528
Q519
2SA965-Y
(1/2W)
10/50
R528
390
C526
10/50
Q513
2SC5171
Q514
2SA1930
Q515
R526
82
(1/2W)
R531
0.22
(5W)
2SA1987-O/R
Q516
2SC5359-O/R
R533
3.3
(1W)
C519
224
C520
224
P531
SPEAKER
JL535A/B
!
4
5
10/50
5.6K
C601
R601
100K
Q301(2/2)
NJM4558LD
5
6
D601
MTZJ2.7B
180
R602
R604
C602
10/50
8
4
R603
150K
7
D602
MTZJ2.7B
D603
1SS133
R605
22
C603
470/16
P633
39K
R609
NC
Q602
KRC103M
R610
560K
820K
120K
R614
39K
R611
R612
Q603
2SC1740S-S
470K
R613
D605
1SS133
C950
104/50
Q604
2SA933S
R617
1K
R615
22K
R619
22K
R620
100K
R616
100K
D607
1SS133
Q605
2SA933S
R621
1K
P632A
REDBLUE
Q606
KRA103M
P631
2SA933S
Q607
R622
10K
5.0
R624
100K
R623
100K
Q608
2SC1740S-S
R626
2.2M
0.05
0.6
R625
180K
R627
680K
C604
33/35
Q609
NC
D606
1SS133
R628
330K
R629
NC
R701
NC
+5.6V
R904
1K
(1/2W)
10K
D904
MTZJ5.6B
R903
820
820
C909
22/50
R901
(1W)
R902
(1W)
-56.5V
D902
RL1N4003
or GP104003E
D903
RL1N4003
or GP104003E
+56.5V
D901
D3SBA20
C905
5600/71(MPP)
5600/63(MDD)
C906
5600/71(MPP)
5600/63(MDD)
C903
C904
104J/100
(MPP TYPE)
104J/100
(MPP TYPE)
U03
P903A
POWER TRANSFORMER
PC BOARD
MDD
ONLY
T901
NPT-1578D
P901A
NAPS-8831
5A/125V
F901
J901
MD
P902A
P901
AC 120V / 60Hz
LED
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