Sony-XM222Mk2 caramp.pdf

XM-222MK2

SERVICE MANUAL

Canadian Model

AEP Model

UK Model

E Model

Ver 1.1 2002. 03

SPECIFICATIONS

Circuit system OTL (output transformerless) circuit Pulse

power supply

Inputs RCA pin jacks

High level input connector

Input level adjustment range

0.3 – 6 V (RCA pin jacks),

0.6 – 12 V (High level input)

Outputs Speaker terminals

Speaker impedance 2 – 8 Ω (stereo)

4 – 8 Ω (when used as a bridging amplifier)

Maximum outputs 100 W × 2 (at 4 Ω)

222 W (BTL, at 4 Ω)

Rated outputs (supply voltage at 14.4 V)

35 W × 2 (20 Hz – 20 kHz, 0.04% THD, at 4 Ω)

40 W × 2 (20 Hz – 20 kHz, 0.1% THD, at 2 Ω)

80 W (Monaural) (20 Hz – 20 kHz, 0.1% THD,

at 4 Ω)

Frequency response 5 Hz – 80 kHz ( dB)

Harmonic distortion 0.005% or less (at 1 kHz, 4 Ω, 10 W)

Low-pass filter 80 Hz, –18 dB/oct

Power requirements 12 V DC car battery

(negative ground)

Power supply voltage 10.5 – 16 V

Current drain

+ –3

at rated output : 12 A (4 Ω, 35 W × 2)

Remote input : 1.5 mA

Dimensions

Approx. 205 × 55 × 158 mm (w/h/d) not incl.

projecting parts and controls

Mass

Approx. 1.6 kg not incl. accessories

Supplied accessories

Mounting screws (4)

High level input cord (1)

Protection cap (1)

Design and specifications are subject to change without

notice.

STEREO POWER AMPLIFIER

9-873-557-02

2002C0400-1

Sony Corporation

e Vehicle Company

Published by Sony Engineering Corporation

SECTION 3

DIAGRAMS

XM-222MK2

3-1. BLOCK DIAGRAM

-1

PRE AMP

IC801 (1/2)

LPF

IC802 (1/2)

GAIN CONTROL

AMP

IC803 (1/2)

-1

L (BTL)

CN802

SPEAKER

OUT

DIFFERENTIAL

AMP

Q102

SWITCH

Q101

DRIVE AMP

Q104

DRIVE AMP

Q108

POWER AMP

Q110

S801-1

LPF

(80Hz)

VR801-1

LEVEL

OFF

BIAS

Q106,107

CNJ801

OVERLOAD

DET

Q112

INPUT

DIFFERENTIAL

AMP

Q103

DRIVE AMP

Q105

DRIVE AMP

Q109

POWER AMP

Q111

PRE AMP

IC801 (2/2)

LPF

IC802 (2/2)

OFFSET

DET

Q852,853

BTL

-2

GAIN CONTROL

AMP

IC803 (2/2)

-2

SWITCH

Q201

DIFFERENTIAL

AMP

Q202

DRIVE AMP

Q204

DRIVE AMP

Q208

POWER AMP

Q210

S801-2

LPF

(80Hz)

OFF

CNJ802

VR801-2

LEVEL

BIAS

Q206,207

HI LEVEL

MUTE

Q851

DIFFERENTIAL

AMP

Q203

DRIVE AMP

Q205

DRIVE AMP

Q209

POWER AMP

Q211

OVERLOAD

DET

Q212

15V REG

Q951,952,

D953

B+

(14.6V)

PROTECTOR

Q802

DC DET

IC851

B-

(-14.6V)

-15V REG

Q953,954,

D954

F901

20A

DC-DC CONVERTER

TRANSFORMER

T901

CN801

RECT

D951,952

B+

SWITCH

Q902

INVERTER

Q903

+12V

LD801

B+

(26.2V)

ERROR

POWER/

PROTECTOR

POWER

ON/OFF

Q901

INVERTER

Q904

LED

DRIVE

Q803

B-

(-26.2V)

REM

ERROR

GND

THERMAL

Q801

• Signal path

: AUDIO

DC-DC CONVERTER

IC901

TH801

TH802

D802

XM-222MK2

3-3. SCHEMATIC DIAGRAM • Refer to page 10 for IC Block Diagram and Common Note on Schematic Diagrams.

R114

R116

D101

R118

C856

Q104

Q108

C113

Q107

C119

R138

R124

R133

Q110

Q112

R137

C120

R139

Q102

R119

R122

C115

R126

R129

CNJ802

Q103

Q106

R130

C114

R120

R128

C220

R239

R125

C116

R123

R237

C219

R238

Q105

R135

R127

Q111

R115

Q109

R117

R121

D102

C854

C104

C857

C112

R131

R132

C101

R103

CN802

R101

C107

Q101

C102

R102

R105

C109

D201

R218

C103

R106 R107

C111

R214

R216

IC801 (1/2)

IC802 (1/2)

C106

IC803 (1/2)

Q208

Q204

R112

R860

C853

C105

R104

S801

C213

C858

Q207

R861

VR801

R113

R224

R233

Q212

C108

R108

R109

R110

R111

CNJ801

C110

C210

Q210

R229

C208

R208

R209

R210

R211

R226

R213

R219

R222

C215

C205

R204

Q202

C216

R235

C201

C206

R201

IC801 (2/2)

Q203

Q206

R230

IC803 (2/2)

C214

R220

IC802 (2/2)

R228

R225

R206

R207

C211

Q201

R205

R223

C203

C209

C202

R202

C207

Q205

R203

R236

R136

R227

Q211

R212

R215

R217

C855

C204

R221

D202

Q209

C212

R231

R232

R855

D903

T901

Q951

R954

Q952

R955

Q851

R851

D951

R917

R951

C957

R952

R953

R852

Q903

C907

C951

R915

R916

L951

C953

C955

D953

R853

D852

C956

IC851

R918

R919

C908

C952

C954

D954

C852

R858

R854

Q904

D851

R956

R957

R958

C958

R856

C851

R920

D952

D904

Q953

R959

Q954

R960

R857

Q853

Q852

IC B/D

Q902

R961

C959

R914

R859

C804

R809

R812

LD801

C801

R801

D801

TH801 TH802

R905

R811

R810

Q901

R906

R862

Q802

CN801

R802

R907

IC901

D803

F901

L901

D802

C901

D901

D902

C904

R813

R901 R902

C909

C802

R806

R909

R807

R803

C903

R805

C902

R903

R904

Q801

R814

R913

R912

C905

C803

Q803

R911

R808

PL801

C805

R804

• Waveform

1V/DIV, 5µsec/DIV

3.4Vp-p

15µsec

IC901 5

XM-222MK2

SECTION 4

EXPLODED VIEW

• Semiconductor

Location

THIS NOTE IS COMMON FOR PRINTED WIRING

BOARDS AND SCHEMATIC DIAGRAMS.

(In addition to this, the necessary note is

printed in each block.)

NOTE:

• The mechanical parts with no reference

number in the exploded views are not supplied.

• Items marked “*” are not stocked since

they are seldom required for routine service.

Some delay should be anticipated

when ordering these items.

• Color Indication of Appearance Parts

Example :

KNOB, BALANCE (WHITE) ... (RED)

The components identified by

mark 0 or dotted line with mark.

0 are critical for safety.

Replace only with part number

specified.

Ref. No. Location

D101

G-10

D102

G-9

Parts Color Cabinet’s Color

• Accessories are given in the last of this parts list.

D201

G-7

for schematic diagram:

• All capacitors are in µF unless otherwise noted. pF: µµF

50 WV or less are not indicated except for electrolytics

and tantalums.

• All resistors are in Ω and 1 / 4 W or less unless otherwise

specified.

• 2 : nonflammable resistor.

D202

G-6

D801

F-11

Les composants identifiés par une

marque 0 sont critiques pour

la sécurité.

Ne les remplacer que par une piéce

portant le numéro spécifié.

D802

E-11

D803

F-11

D851

E-10

D852

F-5

D901

D-10

Note:

Les composants identifiés par

une marque 0 sont critiques

pour la sécurité.

Ne les remplacer que par une

piéce portant le numéro

spécifié.

D902

D-11

Note:

The components identi-

fied by mark 0 or dotted

line with mark 0 are criti-

cal for safety.

Replace only with part

number specified.

D903

D-9

D904

D-8

D951

B-7

D952

B-6

D953

D-4

D954

D-3

IC801

E-3

• A : B+ Line.

• B : B– Line.

•Power voltage is dc 14.4V and fed with regulated dc power

supply from +12V and REM terminals.

•Voltage is dc with respect to ground under no-signal

condition.

•Voltages are taken with a VOM (Input impedance 10 M Ω ).

Voltage variations may be noted due to normal produc-

tion tolerances.

•Waveforms are taken with a oscilloscope.

Voltage variations may be noted due to normal produc-

tion tolerances.

• Circled numbers refer to waveforms.

• Signal path.

F : AUDIO

IC802

F-3

IC803

H-3

IC851

E-10

IC901

D-8

LD801

F-14

Q101

F-6

Q102

G-10

Q103

G-9

Q104

G-10

Q105

G-9

Q106

I-10

Q107

H-9

Q108

H-10

Q109

H-9

for printed wiring boards:

• X : parts extracted from the component side.

•

Q110

J-10

Q111

J-9

: Pattern from the side which enables seeing.

Q112

G-9

Q201

G-5

Q202

G-6

F901

Q203

G-6

Q204

G-7

Q205

G-6

Q206

I-6

Q207

H-6

Q208

H-7

Q209

H-6

Q210

J-7

• IC Block Diagram

Q211

J-6

Q212

G-5

Q801

E-11

IC901 µPC494GS-T1

Q802

E-12

Q803

F-13

Q851

E-10

Q852

E-12

Q853

E-12

ERROR

REF. REG.

Q901

D-10

Q902

D-10

Q903

B-9

Q904

B-10

Q951

C-4

0.1V

OSC

Q952

C-4

ERROR

Q953

C-4

Q954

C-4

7 8

Ref. No.

Part No.

Description

Remark

Ref. No.

Part No.

Description

Remark

3-240-641-01 PLATE, BOTTOM

7-685-545-14 SCREW +BTP 3X6 TYPE2 N-S

3-238-672-01 PANEL, FRONT

3-240-642-01 HEAT SINK (SUB 2CH)

3-238-671-01 HEAT SINK (CHINESE MADE)

3-225-183-01 SCREW (+PSW.TT.3XL)

3-238-671-11 HEAT SINK (JAPAN MADE)

3-225-184-01 SCREW (+PS.TT.3X6)

3-238-673-01 PANEL, REAR

3-912-432-01 SCREW (+–B)

A-3274-223-A AMP BOARD, COMPLETE

0 F901

1-532-732-11 FUSE (BLADE TYPE) (AUTO FUSE) 20A

7-685-646-79 SCREW +BVTP 3X8 TYPE2 IT-3

Ver 1.1

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