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SL-105
Ref. No.3709
082001
SERVICE MANUAL
SUB WOOFER SYSTEM
SL-105 / HTP-2
D-L5 x 5
SATELLITE SPEAKERS
SL-105
POWERED SUBWOOFER
Black color : MPP model
Yellow color : MDT, MGT models
MPP 230-240V AC, 50Hz
MDT 120V AC, 60Hz
MGT 220-230V 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.
SL-105
SERVICE NOTE
1. Replacing the fuses
This symbol located near the fuses indicates that the fuse used is
fast operating type. For continued protection against fire hazard, re-
place with same type fuse. For fuse rating refer to the marking adja-
cent to the symbol.
Ce symbole indique que le fusible utlise est a rapide. Pour une pro-
tection permanente, n'untiliser que fusibles de meme type. Ce darni-
er est la qu le present symbol est appse.
CIRCUIT NO. PART NO. DESCRIPTION
CIRCUIT NO. PART NO. DESCRIPTION
F901,F903 252069 or 0.8A-SE-EAK or
252236 800MA-SE-TL250V
F902 252159 or 2A-UL/T-237 or
252253 2A-T/UL-ST2
2. Safety-check out
After correcting the original service problem, perform the following
safety check before releasing the set to the customer. Connect the in-
sulating-resistance tester between the plug of power supply cord and
screw on the back panel.
Specifications: 3.3Mohm
SL-105
PANEL VIEW
Subwoofer SL-105
Front panel 2 3 Rear panel
C
SL-105 SPEAKER LEVEL LINE
INPUT
AUTO STANDBY
+ R
_ _ L +
SL-105 POWERED SUBWOOFER INPUT
FROM
AMP/RECEIVER
L
FREQUENCY OUTPUT LEVEL (MONO)
OFF ON
OUTPUT R
TO SPEAKERS
+ R _ _ L +
50 Hz 200 Hz
D A B
MIN MAX
POWER
1
To AC outlet
1 Power switch (POWER) and indicator A Low-level input jacks (LINE INPUT)
Pressing this button turns the power on (the indicator Connect these jacks to the LINE OUT jacks of the
lights). Pressing the button again turns the power off amplifier etc.
(the indicator goes out). B Auto standby switch (AUTO STANDBY)
Red: Unit is in standby mode This switch is used to turn on and off the auto standby
Green: Unit is in operation function.
2 Frequency adjusting knob (FREQUENCY) ON: This activates the auto standby function.
Use this knob to select the high-frequency range at If a constant level signal is not received from the
which you wish to cut off the signal to the subwoofer. amplifier (or receiver) over a period of a few minutes,
You can select any frequency between 50 Hz and 200 the SL-105 automatically enters the standby state. If a
Hz depending on the characteristics of the speaker constant level signal is later received from the amplifier
system being used with the SL-105. (or receiver), the power is automatically turned back on.
3 Output level adjusting knob (OUTPUT LEVEL) OFF: Deactivates the auto standby function.
Use this knob to adjust the output level of the
subwoofer. Notes:
* The auto standby function operates on the existence
or absence of a constant level input signal. If the auto
standby function does not operate properly, try
slightly increasing (or decreasing) the output level of
the amplifier or receiver. (Note that output levels of
some amplifiers and receivers cannot be adjusted.
For more details regarding your components, refer to
the instruction manual supplied with them.)
* If noise from peripheral components causes the or if
incorrect operation of the auto standby function,
outputting low volumes (i.e., during the nighttime)
causes the auto standby function to activate, turn off
the auto standby function.
* The auto standbythe SL-105 is turned on.while the
power switch for
function only operates
C Speaker-level input terminals
(INPUT FROM AMP/RECEIVER)
Connect these input terminals to the speaker output
terminals of your amplifier or receiver.
D Speaker-level output terminals
(OUTPUT TO SPEAKERS)
The speaker-level signal to the front speakers is output
from these terminals.
SL-105
EXPLODED VIEW
(CABINET SECTION)
S3
Indicated in the exploded view of
an amplifier section.
S9
E901
S1
P535
S10
S7 S7
S7
S7
S4
S4
S4
S2
S8
S4
S8
S8
S8
SL-105
CHASSIS EXPLODED VIEW
(AMPLIFIER SECTION)
S6
S3
S5 U8
A18
A18 U7
U6
U4
A20
A5
A4 A15
U3 U2
A5 S7
A2 A42 S7
Q516 Q951
Q541 A2 Q952
A5 A42
Q515 Q516B A4
A4
R602 A2 Q515A S7
A5 A8
S7
T901
S7
A1 S7
F901 U1 E811
A42
S7
U5 A48
A49
A52
A41
S7
A55
A30 P901
A43
A43
SL-105
EXPLODED VIEW PARTS LIST NOTE: THE COMPONENTS IDENTIFIED BY MARK
ARE CRITICAL FOR RISK OF FIRE AND
ELECTRIC SHOCK. REPLACE ONLY WITH
REF. NO. PART NO. DESCRIPTION PART NUMBER SPECIFIED.
A1 27160467 Heat sink, SKW-205AMP
A2 801433 3SMS8W.SW+14B(BC), Self tapping screw
A4 27130745 Bracket
A5 838130088 3TTB+8B, Self tapping screw
A8 27141661 Retainer
A15 28184777 Cover
A18 82143010 3P+10FN(BC), PAN head screw
A20 28141322A Cushion
A21 28141417 Cushion, P t1x5x160
A22 28141418 Cushion, Q t1x5x80
A30 27100412 Chassis
A41 27122929 Rear panel
27122930 Rear panel
27122931 Rear panel
A42 838430088 3TTB+8B(BC), Self tapping screw
A43 830440109 4TTC+10C(BC), Self tapping screw
A48 28141479 Cushion, t1X5X335
A49 28141416 Cushion, O t1x5x195
A52 28141334 Insulation sheet
A55 27301941 Cord bushing, KF-41
E811,E814 27255004 Clip
E901 260208 Wire tie
F901 252069 0.8A-SE-EAK or
252236 800MA-SE-TL250V, Fuse
252159 2A-UL/T-237 or
252253 2A-T/UL-ST2, Fuse
P535 2009990611UL NSAS-2P0833, Socket assy
P901 253175 AS-CEE ZA, Power cord
253272HIT AS-UC-6#18, Power cord
Q515 * 2203063 2SC5198-O or
* 2202523 2SC4468-O or
* 2202524 2SC4468-Y or
* 2202526 2SC4468-P or
* 2203062 2SC5198-R, Transistor
Q515A,Q516A 223021 TBM-51W 9043, Isolation plate
Q516 * 2203053 2SA1941-O or
2202513 2SA1695-O or CAUTION:
* Replacement of the transistor of mark , if necessary
* 2202514 2SA1695-Y or *
must be made from the same beta group (HFE) as the
2202516 2SA1695-P or original type.
*
* 2203052 2SA1941-R, Transistor NOTE: European model
Q541 2202104 2SC3423-Y or Taiwanese model only
2202103 2SC3423-O, Transistor Asian model only
Q951 2202754 2SD1266-P, Transistor Yellow color model
Black color model MPP only
Q952 2202764 2SB941-P, Transistor
R602 4000144 PTH9M04-2.2K, Thermistor
T901 2301460 NPT-1396P, Power transformer
2301487 NPT-1396D, Power transformer
2301562 NPT-1396G, Power transformer
SL-105
BLOCK DIAGRAM
SPEAKER
INPUT/OUTPUT NAAF-6866-3 NAETC-6870-3
CUTOFF FREQUENCY
VOLUME
-19dB
-6dB
SPEAKER
R321 5OHHM
LEVEL
4.7K +21dB +28dB
R319
4.7K
BAL Q301 Q302
R328
(2/2)
LPF LPF
Q303 POWER AMP.
12DB/OCT 12DB/OCT
50-200HZ 50-200HZ
NAETC-6867-3
RCA IN
+9.5dB
Q302
(1/2)
C366
AUTO_
STANDBY THERMAL
MUTE
ON/OFF PROTECTION
CIRCUIT CIRCUIT
CIRCUIT AUTO_
STANDBY
CANCEL SW
NAAF-6866-3 NAAF-6865-3
+5.6V D931
NASW-6868-3
1
D933
C931
D932
Q951
+14.4V
O G I T901
1 POWER
Q952 TRANS
-14.4V
O G I
1
D911
+B D_ARRAY
1 AC IN
C911
MJJ AC100V
M D TA C 1 2 0 V
GND M P PA C 2 3 0 V
C912
1 M G TA C 2 2 0 V
NAPS-6869-3
-B
1
SL-105
SCHEMATIC DIAGRAM
R318 NAAF-6866-3 NAETC-6870-3
18K
20KA
R328
(2/2)
C306
C305 R323
R328
LEVEL
(1/2)
INPUT R 3 0 54 7 / 1 6 101 22K
2 R319 C320 R322 4
12K Q302 M5218
1 4.7K 22K 6 P304B
47/16 Q302
R306 3 7
P301
M5218
R326 5 8
12K
100K
R324 470 P304A
C366
220/16
C955
0 R346
R317
223Z
5.6K
C315
102K
R307 R301 C301 R327
220/16
C956
100K 5
100 100K
R311
4.7K
47/16 C340 R355
SP LEVEL C322 7
0.1 Q303
C302
JL303A
R309 R303 47/16 6 2.2K
JL303B
INPUT/OUTPUT
100 100K M5218
C339
R313
C317
102K
R329
2.2K
47/16 R
47K
0.1
R331
R349 5
10K
47K C
LCH
R314
C318
102K
8M 5 2 1 8
2.2K
P302
5 1
7 R330
R310 R304 Q301
6 1K 3 8
100 100K
R312
4.7K
4 1
Q303
R308 R302 5.6K 2 C3
RCH
100 100K R315 12
C316
102K
4
R316
R336 M5218
10K 0
M5218
3
1 R321
Q301
2 4.7K
AUTO POWER CANCEL SW
R320
1K
10K
R371
P501
R372
8.2K
R506 R5
R505 R511
Q509 82
S301
1K 1K 82
(1/4W) 2SA949-Y (1/4
(1/4W) (1/4W)
37.9V
JL953B
Q505
2SA949-Y
37.9V R
JL953A 8
NAAF-6865-3
Q501 Q502
2SC1775 2SC1775
Q951 R951
C501 R501 0 C505
14.4 2SD1266 37.6 47 (1/4W)
220/6.3 1K 020
220/16
15.0 -0.6
C953
C502 R502 C503 R507
R515
151 33K 151
R953 33K 12K
6.8K(1/2W) R521 R522
220/16
C951
220 220 Q507
2SA949-Y
D951 R516
MTZJ15C R509 12K
R503 0
330
5.6K 2SC2229-Y
R615
12K -37.8V R508 -37.9V
Q503
220/16
D952 (1/2W) 47
C952
R527
MTZJ15C (1/4W) Q510
Q504 1K
R954 2SC2240
220/16
-15.0 C527 -38.4V
C954
6.8K(1/2W) R510 Q506
47/50 22K 2SC2229-Y
2SC2240 C504
R514
R504 R512
-14.4 -37.6 470/6.3 82
D615 270 82
R952 1SS133 (1/4W) (1/4W)
Q952
2SB941 47(1/4W)
5.6 Q604
5.4 R608
DTA124ES
C621 100K
10/50 Q606 5.6
2SA933S-S 4.9 Q603 R609