Onkyo SL-105 Service manual

SERVICE MANUAL

SERVICE MANUAL

SUB WOOFER SYSTEM

SL-105 / HTP-2

SL-105

Ref. No.3709

082001

POWERED SUBWOOFER

Black color : MPP model

Yellow color : MDT, MGT models

D-L5 x 5

SATELLITE SPEAKERS

SL-105

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.

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, re­place with same type fuse. For fuse rating refer to the marking adja­cent to the symbol.

Ce symbole indique que le fusible utlise est a rapide. Pour une pro­tection permanente, n'untiliser que fusibles de meme type. Ce darni­er 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 <MPP,MGT>
F902 252159 or 2A-UL/T-237 or
252253 2A-T/UL-ST2 <MDT>

SL-105

2. Safety-check out

After correcting the original service problem, perform the following
safety check before releasing the set to the customer. Connect the in­sulating-resistance tester between the plug of power supply cord and
screw on the back panel.
Specifications: 3.3MohmrCV8

PANEL VIEW

Subwoofer SL-105

SL-105

Front panel

SL-105

23

POWERED SUBWOOFER

LEVEL

200Hz

OUTPUT

MIN MAX

POWER

FREQUENCY

50Hz

1

1 Power switch (POWER) and indicator

Pressing this button turns the power on (the indicator
lights). Pressing the button again turns the power off
(the indicator goes out).
Red: Unit is in standby mode
Green: Unit is in operation

2 Frequency adjusting knob (FREQUENCY)

Use this knob to select the high-frequency range at
which you wish to cut off the signal to the subwoofer.
You can select any frequency between 50 Hz and 200
Hz depending on the characteristics of the speaker
system being used with the SL-105.

3 Output level adjusting knob (OUTPUT LEVEL)

Use this knob to adjust the output level of the
subwoofer.

Rear panel

SL-105

INPUT

AMP/RECEIVER

OUTPUT

TO SPEAKERS

FROM

SPEAKER LEVEL

R

+

R

+

C

LINE

_

_

_

_

INPUT

L

+

L

(MONO)

R

L

+

DAB

To AC outlet

A Low-level input jacks (LINE INPUT)

Connect these jacks to the LINE OUT jacks of the
amplifier etc.

B Auto standby switch (AUTO STANDBY)

This switch is used to turn on and off the auto standby
function.
ON: This activates the auto standby function.
If a constant level signal is not received from the
amplifier (or receiver) over a period of a few minutes,
the SL-105 automatically enters the standby state. If a
constant level signal is later received from the amplifier
(or receiver), the power is automatically turned back on.

OFF: Deactivates the auto standby function.
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

*

incorrect operation of the auto standby function, or if
outputting low volumes (i.e., during the nighttime)
causes the auto standby function to activate, turn off
the auto standby function.

The auto standby function only operates while the

*

power switch for the SL-105 is turned on.

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.

AUTO STANDBY

OFF ON

EXPLODED VIEW

(CABINET SECTION)

SL-105

Indicated in the exploded view of

an amplifier section.

S10

S3

E901

S9

S1

P535

S7

S7

S7

S4

S8

S7

S4

S4

S2

S4

S8

S8

S8

A49

8

U2

S7

S3

CHASSIS EXPLODED VIEW

(AMPLIFIER SECTION)

SL-105

S6

A18

S5

A18

R602

Q541

Q515

A2

A5

A5

U4

A2

Q515A

U3

U7

Q516

Q516B

U8

A5

A2

A4

Q951

Q952
A5
A4

A20

A15

A8

U6

S7

A42

A42

S7

S7

U5

F901

T901

A43

A52

A43

A1

A30

U1

E811

A4

A41

S7

S7

S7

A42

S7

A55

P901

SL-105

EXPLODED VIEW PARTS LIST

<AMPLIFIER ASSEMBLY PARTS LIST>

REF. NO. PART NO. DESCRIPTION

A1 27160467 Heat sink, SKW-205AMP
A2 801433 3SMS8W.SW+14B(BC), Self tapping screw
A4
A5 838130088 3TTB+8B, Self tapping screw
A8
A15
A18 82143010 3P+10FN(BC), PAN head screw
A20 28141322A Cushion
A21 28141417 Cushion, P t1x5x160
A22 28141418 Cushion, Q t1x5x80
A30
A41 27122929 Rear panel <MPP>

A42 838430088 3TTB+8B(BC), Self tapping screw
A43 830440109 4TTC+10C(BC), Self tapping screw
A48
A49 28141416 Cushion, O t1x5x195
A52 28141334 Insulation sheet
A55 27301941 Cord bushing, KF-41
E811,E814
E901
F901 252069 0.8A-SE-EAK or

P535 2009990611UL NSAS-2P0833, Socket assy
P901 253175 AS-CEE ZA, Power cord <MPP,MGT>

Q515

Q515A,Q516A 223021 TBM-51W 9043, Isolation plate
Q516

Q541

Q951
Q952
R602
T901 2301460 NPT-1396P, Power transformer <MPP>

27130745 Bracket

27141661 Retainer

28184777 Cover

27100412 Chassis

27122930 Rear panel <MDT>
27122931 Rear panel <MGT>

28141479 Cushion, t1X5X335

27255004 Clip
260208 Wire tie

252236 800MA-SE-TL250V, Fuse <MPP.MGT>
252159 2A-UL/T-237 or
252253 2A-T/UL-ST2, Fuse <MDT>

253272HIT AS-UC-6#18, Power cord <MDT>
2203063 2SC5198-O or

*

2202523 2SC4468-O or

*

2202524 2SC4468-Y or

*

2202526 2SC4468-P or

*

2203062 2SC5198-R, Transistor

*

2203053 2SA1941-O or

*

2202513 2SA1695-O or

*

2202514 2SA1695-Y or

*

2202516 2SA1695-P or

*

2203052 2SA1941-R, Transistor

*

2202104 2SC3423-Y or

2202103 2SC3423-O, Transistor

2202754 2SD1266-P, Transistor
2202764 2SB941-P, Transistor

4000144 PTH9M04-2.2K, Thermistor

2301487 NPT-1396D, Power transformer <MDT>
2301562

NOTE: THE COMPONENTS IDENTIFIED BY MARK
ARE CRITICAL FOR RISK OF FIRE AND
ELECTRIC SHOCK. REPLACE ONLY WITH
PART NUMBER SPECIFIED.

CAUTION:

Replacement of the transistor of mark , if necessary
must be made from the same beta group (HFE) as the
original type.

NOTE:

NPT-1396G, Power transformer <MGT>

*

<MPP> European model
<MDT> Taiwanese model only
<MGT> Asian model only
<Y> Yellow color model
<B> Black color model MPP only