Sony XM SD22X User Manual download pdf (Page 11)

11 11

XM-SD22X

XM-SD22X

4-1. BLOCK DIAGRAM

SECTION 4

DIAGRAMS

6

5

7

3

2

1

PRE AMP

IC101 (1/2)

PRE AMP

IC102 (1/2)

3

2

L.P.F

IC301

5

6

7

LOW BOOST

IC102 (2/2)

DIFFERENTIAL

AMP

Q103

POWER

AMP

Q108,Q110,Q112

OVER CURRENT

DET

Q114

DRIVE

AMP

Q105

DIFFERENTIAL

AMP

Q104

POWER

AMP

Q109,Q111,Q113

DRIVE

AMP

Q106

BIAS

Q107

BOOST

EQUALIZER

Q101

FILTER

S801-1

OFF

LPF

RV102-1

LOW

BOOST

(40Hz)

+16.7V

(B+)

–16.7V

(B-)

CNJ801-1,-3

INPUT

OUTPUT

(THROUGH)

OUTPUT

(THROUGH)

L

(BTL)

SPEAKER OUT

L

R

LINE

SWITCH

Q102

REM

+12V

GND

PROTECTOR

3

2

10

1

3

2

1

PRE AMP

IC101 (2/2)

PRE AMP

IC202 (1/2)

5

6

7

LOW BOOST

IC202 (2/2)

DIFFERENTIAL

AMP

Q203

POWER

AMP

Q208,Q210,Q212

OVER CURRENT

DET

Q214

DRIVE

AMP

Q205

DIFFERENTIAL

AMP

Q204

POWER

ON/OFF

Q903

LINE SWITCH

CONTROL

Q701,702

POWER

AMP

Q209,Q211,Q213

DRIVE

AMP

Q206

BIAS

Q207

BOOST

EQUALIZER

Q201

RV102-2

LOW

BOOST

(40Hz)

+16.7V

(B+)

–16.7V

(B-)

CNJ801-2,-4

CNJ803

INPUT

R

L

HIGH LEVEL

INPUT

R

LINE

SWITCH

Q202

RV203

BIAS

RV103

BIAS

DC OFFSET

DET

Q802,Q803,Q804

15

16

1

2

14

12

B+

SWITCH

Q901,Q902

TEMP.DET

Q809

TH801,803,808

PTH801

DC DET

IC902

REF.

REG

PROTECT LATCH

Q801,Q805,Q806

HI-VOLTAGE

DET

IC903,Q920

CN801

F902

RECT

D911,917

RECT

D909

RECT

D905

RECT

D910

+16.7V

(B+)

+54V

(B+)

+45V

(B+)

RECT

D906

-45V

(B-)

–54V

(B–)

–16.7V

(B–)

SWITCHING

DRIVER

Q904,Q905,Q906

SWITCHING

DRIVER

Q907,Q908,Q909

DRIVER

Q910

SWITCHING

Q913

SWITCHING

Q912

11

9

8

D854

D919

D920

DC-DC

CONVERTER

TRANSFORMER

T901

DC-DC CONVERTER

IC901

D803

D820,822,827,832

+45V

(B+)

-45V

(B-)

• Signal path

: AUDIO

CN804

BTL

BTL

CN805

1

2

1

2

2

3

INV. AMP

IC302 (2/2)

5 7

L.P.F

IC302 (1/2)

RV301-1

FILTER

RV101-1

LEVEL

RV101-2

LEVEL

RV301-2

FILTER

F901

FILTER

S801-2

OFF

LPF

-1

-3

-4

-2

DRIVER

Q911

B-REG

Q915

B+REG

Q914

L

1

RECT

D912,918

1

D850,852

(POWER)

D851,853

(POWER)

1 2 ... 6 7 8 9 10 11 12 13 14 15 16 ... 23 24

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