Sony service manual STR-DE845/DE945

4-3. BLOCK DIAGRAM – DISPLAY/POWER SUPPLY Section –

POWER AMP (L)

IC501

+B

13 VCC

+VE 12

BOOSTER

VOLUME

14 VCC

Q506

RV401

IC408

VOL CONT

–B

15 VEE

L

IC414

Q505

3

1

3

IN

OUT

2

8 IN

NF

9

DATA

BIAS

9

DATA

Q511

CLK

8

CLK

1 MUT

AF DETECTOR

LAT

10 LAT

–VE

11

BOOSTER

CUR DET

Q509,510

Q507

Q508

IC409

VOL CONT

POWER AMP (C/W)

C

3

(1/2)

IC415

1

3

IN

OUT

2

IC601

13 VCC

+B

+VE

2

BOOSTER

IC409

14 VCC

Q606

B

W

(2/2)

–B

15 VEE

5

7

14 IN

OUT 15

6 IN

Q604, Q605

(Page 11)

DATA

NF

5

9

DATA

BIAS

CLK

8

CLK

Q611

LAT 10 LAT

AF DETECTOR

1 MUT –VE

3

BOOSTER

CUR DET

Q609,610

VOL CONT

Q607

Q608

IC410

SL

IC416

3

1

3

OUT

2

IN

DATA

9

DATA

DATA

CLK

8

CLK

POWER AMP (SL)

CLK

LAT 10 LAT

LAT

IC701

+B

13 VCC

+VE 12

BOOSTER

14 VCC

M

Q706

–B

15 VEE

8 IN

NF

9

Q704, Q705

BIAS

1 MUT

AF DETECTOR

–VE

11

BOOSTER

CUR DET

Q709,710

Q707

Q708, Q798

AC MUTE

MUTE DRIVE

Q501, 503

PROTECTOR

Q547-549

PROTECTOR

C

HP RY

SP/A RY

(Page 11)

SP/B RY

RY CENTER

RY WOOFER

REAR SY RY

RY POWER

STOP

RESET

URESET

D104 – 106,

(DE945)

USREQ

157, 158,

UMREQ

D

160 – 172

UCLOCK

D119, 122, 123,

+B

(Page 11)

UDATA

125, 151, 152

SOTO

SIN1

RV101

MD2

1 – 7 9 – 15 20 – 29

MD0

LED DRIVER

IC106

49 51 20 19

61 62 60 59

58

75 76

1

2

3

4

5

8

88 87 89 90

MD0

MD2

USREQ

JOG UP JOG DOWN AD KEY4

EQ

B.B

MUTE

D.D

JOG

DATALED

LEDCLR

IC105

MBUS TV MBUS STA OUT MBUS VIDEO 1 MBUS DVD

SIRCS IN SINO SOTO

AD KEY1 UDATA

UCLOCK

UMREQ AD KEY2

URESET

DCS

MODE CONTROL

CLKLED LEDCE

IC102

POWER KEY

2

MOTOR

5

9 UP

AD KEY3

AD KEY5

AD KEY6

AD KEY7

4

DRIVE

8

10 DOWN

SP A

SP B

(US, Canadian)

95 96 93 94 18

38

39

40

41

43

44

7

64

65

66

J257

BUFFER

TV/SAT

Q201, 202

CTRL S

STATUS IN

FUNCTION

FUNCTION

FUNCTION

FUNCTION

FUNCTION

FUNCTION

SPEAKERS

J258

1

6

KEY

KEY

KEY

KEY

KEY

KEY

MONITOR

13 IN1

4

S111 – 118 S121 – 125 S131 – 137 S141 – 148 S151 – 157 S161 – 165

S101

S150

CTRL S

IN3

D101

I/1

IN

MUTING

(POWER)

J255

11 1

2

7

VIDEO 1

CTRL S

IC101

OUT

J256

10 2

OUT1

2

1

REMOTE

3

B+ (5V)

DVD/LD

CONTROL

RECEIVER

CTRL S

CONTROL S

OUT

I/O

05

IC253

RELAY

DRIVE

Q601

RELAY

DRIVE

Q546

RELAY

DRIVE

Q596

SIRCS DET

QQ13,14 IC11

LED

DRIVE

X101

16MHz

82		83
XO		XI
FL CLK	FL LAT	FL CLEAR	FL DATA
21 24		25	22
30 31		32	28
CLK	LAT	CLR	DIN

IC103

FL DRIVE

F2F1

FL101

FLOURESCENT

INDICATOR TUBE

STR-DE845/DE945

R CH

J701

RY602

PHONES

TM501

L

A

R

FRONT

L

RY501

B

•

SIGNAL PATH

R CH

R

SPEAKERS

: FM

RY502

: CD

TM701

C

CENTER

RY601

S (L)

RELAY

REAR

DRIVE

R CH

S (R)

S801

Q645

IMPEDANCE

IC404

SELECTOR

JJ103

+5V

1

+5V

3

4

8

RY681

REG

IC401

SUB WOOFER

RELAY

+15V

+15V

3

1

T901

DRIVE

Q681

IC405

REG

–5V

3

–5V

2

REG

–15V

3

–15V

2

REG

Q801

IC402

D812

D811

RY701

+32V

+32V

RELAY

REG

DRIVE

D801

F801

Q745

+B

F802

–B

D802-805

F803

SWITCH

Q613

+24V

IC1207

F804

TUNER +5V

3

+15V

1

D806-809

(E, PX)

REG

F805

VS901

IC1208

VOLTAGE

IR LINK +5V

3

+5V

1

SELECTOR

REG

240V

IC12

X11

DIGITAL +5V

3

+3.3V

1

F2

220V

SIRCS

7.82MHz

IC1203

REG

15

16

F1

F904

QQ11

XI

XO

CONT ∝ COM ETC

3

+5V

1

CTL

120V

2 CARR OUT

CA1 I 11

REG

IC1204

I/O

33 SIRCS IN

CA1 O 12

DISP ∝ COM+5.6V

3

+6.2V

1

LAT RESET

D1209

D1208

REG

RELAY

RY901

F901

EXCEPT US,

5

14

IC1205

DRIVE

Canadian, E, PX

Q901

98

99

13

D1211

F903

LAT

RESET

POWERRY

REG

CNJ901

+6.2

RESET 77

RESET

Q1205

T902

JW925

A1 IN

OUT

Q108

3

D901-904

JW927

(US, Canadian, E, PX)

ABUS

ABUS

STOP 47

8 RESET

5

JW928

67

63

IC1206

6

EXCEPT E

CNP901

AC IN

Q109	D180
I/O	J204: DE845
BUFFER	J2004: DE945
	CONTROL A1 II

13 13