Onkyo HTP 120 Service Manual

Page 1

Ref. No. 3722

ON KYO SERVICE MANUAL 052002

HTP-120
SKW-120/D-120C/D-120
SPEAKER SYSTEM

[2' (:1 :1
0-120 (Satellite)

ONKYO

|-|

SKW-120 (Subwoofer)

D-120C (Center)

Black model

- 120V AC, 60Hz

SAFETY-RELATED COMPONENT
WARNING ! !

THE MARK A 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.

ONKYO®

IMAGINATIVE SIGHT 8. SOUND

Page 2

PANEL VIEW

Subwoofer SKW-120

Front

To AC outlet

A. LINE INPUT (input jack)
Connect this jack to the SUBWOOFER PREOUT jack of
the DR-82.2.

B. Indicator
The indicator changes from red to green when the
subwooler receives a signal.

C. OUTPUT LEVEL (Output level adjusting knob)
Use this knob to adjust the output level of the subwooler.

Satellite speakers D-120

(Front left/right, Surround left/right)

85mm (3-3/3")
Key hole

120mm

(4-3/4")
Screw hole
for a

[3 speaker

stand

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

Center s neaker D-

265mm (10-7/15") 180mm (7-ms")
ex

130.5mm
(5mm 3

v

llll
u

Key holes

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

The satellite speakers (D-t 20) and the center speaker (D-1 200)
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»82.2 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

Page 7

EXPLODED VIEW PARTS LIST

Amp section

REF. NO.
U1
U2
U3
U4
Al
A2

A3
A4
A6
A8
A9
A10
A1 1
A41
A42
A43
A44
A45
A46
A47
A48
E901
Q515

Q515A, Q516A
Q541

Q951
Q952
R602
T901
F901

P901
A50

PART NO.
1W232555-1A
1W232556-1A
1W232557-1A
1W232558-1A
27160467
801433

27130745
838130088
27141661
28184777
28141322A
28141475
28141476
27122963
838430088
830440109
28141473
28141474
28141334
27301941
28325405
260208
2202524
2202523
2202526
2203062
2203063
2202514
2202513
2202516
2203052
2203053
223021
2202104
2202103
2202754
2202764
4000144
2301487
0 252159
/h 252253
/! 253272HIT
28141503

*
:1:
*
*
*
*
:1:
*
3k
*

HTP-120

NOTE:THE COMPONENTS IDENTIFIED BY MARKQ
AFIE CRITICAL FOR RISK OF FIRE AND
ELECTRIC SHOCK.HEPLACE ONLY WITH
IRT NUMBER SPECIFIED.

DESCRIPTION
NAAF-7455- 1A, Main circuit PC board assy
NAAF-7456-1A, Output level control PC board assy
NAETC-7457-1A, LED PC board assy
NAPS-7458-1A, Power transformer PC board assy
Heat sink, SKW-205AMP
3SMS8W,SW+14B(BC),

Self tapping screw (6)

Bracket (2)

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

Cover

Cushion

Cushion t2X5X160 (2)

Cushion t2X5X80 (2)

Rear panel (Amp Section)
3TTB+8B(BC), Self tapping screw (13)
4TTC+10C(BC), Self tapping screw (4)
Cushion, t2X5X415 (2)

Cushion, t2X5X195 (2)

Cushion

Cord bushing, KF-4l

Knob, OUTPUT LEVEL

Wire tic

ZSC4468-Y or

23C4468-O or

ZSC4468-P or

2SC5198-R or

2SC5198-O, Transistor

2SA1695-Y or

23A1695-O or

ZSA1695-P or

ZSA1941-R or

25A1941-O, Transistor

TBM-51W 9043, Isolation sheet
ZSC3423-Y or

ZSC3423-O

2SD1266-P

2SB941-P, Transistor

PTH9M04-2.2K, Thermistor

NPT- 1 396D, Power transformer
2A-UL/T-237 or

2A-T/UL-ST2, Fuse

Power cord, AS-UC-6#l8

Cushion

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