Onkyo HTP-120 Manuale utente

SKW-120 (Subwoofer) D-120C (Center)

D-120 (Satellite)

SERVICE MANUAL

Black model

120V AC, 60HzBMDD

Ref. No. 3722

052002

HTP-120

SKW-120/D-120C/D-120

SPEAKER SYSTEM

SAFETY-RELATED COMPONENT

WARNING!!

THE MARK FOUND ON SOME COMPONENT

PARTS INDICATES THE CRITICAL FOR RISK OF

FIRE AND ELECTRIC SHOCK.

WHEN REPLACING, BE SURE TO USE PARTS OF

IDENTICAL DESIGNATION.

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.

HTP-120

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SKW-120/HTP-120

PANELVIEW

(Front left/right, Surround left/right)

The badge can be rotated depending on the angle you position the

speaker.

The badge can be rotated depending on the angle you position the

speaker.

The satellite speakers (D-120) and the center speaker (D-120C)

have colored labels on the backs for easy identification. Match

the color of the label with the corresponding speaker cable when

connecting the speakers. The DR-S2.2 SPEAKER terminals are

also colored to match the corresponding speaker cable.

Connect the cable with a colored line to the negative (

)

terminal.

The label colors and the corresponding speakers are as

follows:

Front left speaker and speaker cable: White

Front right speaker and speaker cable: Red

Center speaker and speaker cable: Green

Surround left speaker and speaker cable: Blue

Surround right speaker and speaker cable: Grey

A. LINE INPUT (input jack)

Connect this jack to the SUBWOOFER PREOUT jack of

the DR-S2.2.

B. Indicator

The indicator changes from red to green when the

subwoofer receives a signal.

C. OUTPUT LEVEL (Output level adjusting knob)

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

Front

Rear

To AC outlet

ABC

LINE

INPUT OUTPUT LEVEL

MAXMIN

RED : STANDBY

GREEN : ON

85mm (3-3/8")

120mm

(4-3/4")

265mm (10-7/16")

130.5mm

(5-1/8")

180mm (7-1/16")

Key hole

Screw hole

for a

speaker

stand

Key holes

Subwoofer SKW-120 Satellite speakers D-120

Center speaker D-120C

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Subwoofer SKW-120

Type Bass-reflex with built-in power amplifier

Use For superbass-range reproduction

Frequency response 30-120 Hz (when used with the DR-S2.2)

Maximum output power 60 W

Dynamic output power 120 W

Input impedance 9.5 k ohm

Sensitivity Line 65 mV

Speaker 20-cm woofer

Power supply AC 120 V, 60 Hz

Power consumption 70 W (AC 120 V, 60 Hz)

Dimensions (W H D) 235 493 488 mm

9-1/4" 19-7/16" 19-3/16"

Weight 14.3 kg 31.5 lbs

Others Auto standby on/off

Satellite speaker D-120

Type 2 way bass reflex

Frequency response 100 Hz-25 kHz

Maximum input power 40 W

Output sound pressure level 82 dB/W/m

Impedance 6 ohm

Speaker 8-cm woofer

1.5-cm tweeter

Cabinet capacity 0.8 L

Dimensions (W H D) 85 120 112 mm

3-3/8" 4-3/4" 4-7/16"

Weight 0.7 kg 1.5 lbs.

Others Magnetic shielding

Center speaker D-120C

Type 2 way bass reflex

Frequency response 100 Hz-25 kHz

Maximum input power 50 W

Output sound pressure level 85 dB/W/m

Impedance 6 ohm

Speaker 8-cm woofer 2

1.5-cm tweeter

Cabinet capacity 1.5 L

Dimensions (W H D) 265 130.5 79.5 mm

10-7/16" 5-1/8" 3-1/8"

Weight 1.3 kg 2.9 lbs.

Others Magnetic shielding

Audio connection cable (1 pc.)

3.5 m speaker cables (3 pcs.: white, red, green)

8 m speaker cables (2 pcs.: blue, grey)

Spacers for Subwoofer (4 pcs.)

Spacers for Satellite and Center speakers (black, 20 pcs.)

Horizontal mounting base (1 pc.)

Double-faced adhesive tapes (2 pcs.)

Cushioning pads (2 pcs.)

Instruction manual (this manual)

Specifications and appearance may subject to change for

improvement without prior notice.

Accessories

SKW-120/HTP-120

SPECIFICATIONS

BCD

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HTP-120

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

F901 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: 3.3M ohm+/-10% at 500V.

Leakage

current

tester

Reading should

not be above

0.5mA

Device

under

test

Test all

exposed metal

surfaces

Earth

ground

AC Leakage Test

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F901

FUSE

THERMAL

PROTECTION

CIRCUIT

AUTO_STANDBY

ON/OFF

CIRCUIT

MUTE

CIRCUIT

LPF

-6DB/OCT

600HZ

-2dB

P301

D933

Q951

Q952

D932

D931

C301

14.4V

+14.4V

+5.6V

GND

C931

C912

C911

D911

D_ARRAY

T901

POWER TRANS

AC IN

R303

OUTPUT

LEVEL

POWER AMP

Q301

NAAF-7455-1

NAPS-7458-1

NAAF-7456-1

+28dB

6 ohm

SPEAKER

AC120VMDD

+24dB

NAETC-7457-1

LED Red

LED Green

INPUT

SUB WOOFER AMP.

BLOCK DIAGRAM

BCD E

HTP-120

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Q515

Q952 Q541

Q516

P623

C912

C911

Q623

NCAF-7455

D911

Q514 Q513

Q951

Trimmer

R544

P531

P604

DC Volt meter

Printed circuit board view from component side

HTP-120

IDLING ADJUSTMENT

1). Cancel the Auto standby ON mode.

P604 is short.

2). Connect the DC volt meter to P531.

3). At the no load and no input signal condition.

4). Turn on the power switch.

And adjust 0.25mV by trimmer (R544) on Main PC board.

5). After heat run for about 5 minutes, and set 4mV by R544 again.

Adjustment of Idling current

Setting position of shipping

Output level ---------------------- MIN

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EXPLODED VIEW PARTS LIST

Amp section

REF. NO. PART NO. DESCRIPTION

U1 1W232555-1A NAAF-7455-1A, Main circuit PC board assy

U2 1W232556-1A NAAF-7456-1A, Output level control PC board assy

U3 1W232557-1A NAETC-7457-1A, LED PC board assy

U4 1W232558-1A NAPS-7458-1A, Power transformer PC board assy

A1 27160467 Heat sink, SKW-205AMP

A2 801433 3SMS8W.SW+14B(BC),

Self tapping screw (6)

A3 27130745 Bracket (2)

A4 838130088 3TTB+8B, Self tapping screw (7)

A6 27141661 Retainer

A8 28184777 Cover

A9 28141322A Cushion

A10 28141475 Cushion t2X5X160 (2)

A11 28141476 Cushion t2X5X80 (2)

A41 27122963 Rear panel (Amp. Section)

A42 838430088 3TTB+8B(BC), Self tapping screw (13)

A43 830440109 4TTC+10C(BC), Self tapping screw (4)

A44 28141473 Cushion, t2X5X415 (2)

A45 28141474 Cushion, t2X5X195 (2)

A46 28141334 Cushion

A47 27301941 Cord bushing, KF-41

A48 28325405 Knob, OUTPUT LEVEL

E901 260208 Wire tie

Q515 *2202524 2SC4468-Y or

*2202523 2SC4468-O or

*2202526 2SC4468-P or

*2203062 2SC5198-R or

*2203063 2SC5198-O, Transistor

Q516 *2202514 2SA1695-Y or

*2202513 2SA1695-O or

*2202516 2SA1695-P or

*2203052 2SA1941-R or

*2203053 2SA1941-O, Transistor

Q515A, 223021 TBM-51W 9043, Isolation sheetQ516A

Q541 2202104 2SC3423-Y or

2202103 2SC3423-O

Q951 2202754 2SD1266-P

Q952 2202764 2SB941-P, Transistor

R602 4000144 PTH9M04-2.2K, Thermistor

T901 2301487 NPT-1396D, Power transformer

F901 252159 2A-UL/T-237 or

252253 2A-T/UL-ST2, Fuse

P901 253272HIT Power cord, AS-UC-6#18

CAUTION: Replacement of the transistor of mark , if necessary,

must be made from the same beta group (HFE) as the

original type.

NOTE: THE COMPONENTS IDENTIFIED BY MARK

ARE CRITICAL FOR RISK OF FIRE AND

ELECTRIC SHOCK.REPLACE ONLY WITH

PART NUMBER SPECIFIED.

A50 28141503 Cushion

HTP-120

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EXPLODED VIEW PARTS LIST

Cabinet section

DESCRIPTIONPART NO. QTY

SP SyatemAM200008-01 1

KK200001-01 1W20170A, SP assy 1

Cabinet assy (Box+paper duct+

plastic duct+sound absorbent)

58-000-302-01 4

76-200-030-01 1

838440204 16

70-015-450-01 4

4STB+20A(BC), Amp, SP Unit

4 x 50, Bottom board

B02

B03

B05

B06

B07

B08

B10 61-000-652-01 Socket assy

Foot

Bottom board

HTP-120

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HTP-120

EXPLODEDVIEW

D-120C

D-120

PARTS LIST

OYO

KYO

NYO

PART NO. DESCRIPTION

REF.

NO.

C 1

-------------

C 2

60-001-906-01

S 1

-------------

Satellite speaker assy

S 2

60-001-907-01

Rating label

Center speaker assy

Rating label

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EXPLODEDVIEW

SKW-120

(Subwoofer Amp.)

WARNING

RISKOFELECTRICSHOCK

DON

OT OPENRISQUEDECHOCELECTRIQUE

NEPAS

OUVRIR

AVIS

LISTED

CUS

80NA

AUDIO/VIDEO

EQUIPMENT

E206130

RED: STANDBY

GREEN:ON

LINE

INPUT

OUTPUTL

EVEL

MINMAX

2-1, NISSHIN-CHO, NEYAGAWA-SHI, OSAKA,

JAPAN MADE INJAPAN

MODEL NO.SKW-120

POWERD SUBWOOFER

RATING:

AC 120V60Hz 70W

P00000000000000000

SERIAL

NYO

A3 A4

A10

A11

A41

A42

(13)

A43

(4)

A44

A45

A47

A48

E901

Q515

Q516

Q515A

Q516A

Q541

Q951

Q952

R602

T901

F901

P901

NOTE:THE COMPONENTS IDENTIFIED BY MARK

ARE CRITICAL FOR RISK OF FIRE AND

ELECTRIC SHOCK. REPLACE ONLY WITH

PART NUMBER SPECIFIED.

B02

B03

B05

B06

B08

B07

B07 B07

B10

A46

A50

D-120C (Center)

NSP

D-120 (Satellite)

NSP

NSP: Not service parts

HTP-120

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