Sony TASB-500-WR Service manual

TA-SB500WR

SERVICE MANUAL

Ver 1.0 2004.06

TA-SB500WR is the amplifier section in DAV-SB500W.

SPECIFICATIONS

Amplifier section

Surround mode (reference)

Surround: 96 W+96 W
(with SS-TS11)

*Depending on the sound field settings and the source,

there may be no sound output.

AEP Model

UK Model

E Model

Australian Model

General

Power requirements 220 – 240 V AC, 50/60 Hz
Power consumption 36 W (220-240 V AC)
Dimensions (approx.) 65 × 95 × 344 mm

Mass (approx.) 1.3 kg

Design and specifications are subject to change
without notice.

(w/h/d) incl. speaker cord
cover

9-879-016-01

2004F05-1
© 2004.06

SURROUND AMPLIFIER

Sony Corporation

Home Audio Company
Published by Sony Engineering Corporation

TA-SB500WR

Notes on chip component replacement

• Never reuse a disconnected chip component.

• Notice that the minus side of a tantalum capacitor may be

damaged by heat.

UNLEADED SOLDER

Boards requiring use of unleaded solder are printed with the lead­free mark (LF) indicating the solder contains no lead.
(Caution: Some printed circuit boards may not come printed with

the lead free mark due to their particular size)

: LEAD FREE MARK

Unleaded solder has the following characteristics.

• Unleaded solder melts at a temperature about 40 °C higher
than ordinary solder.
Ordinary soldering irons can be used but the iron tip has to be
applied to the solder joint for a slightly longer time.
Soldering irons using a temperature regulator should be set to
about 350 °C.
Caution: The printed pattern (copper foil) may peel away if

the heated tip is applied for too long, so be careful!

• Strong viscosity
Unleaded solder is more viscou-s (sticky, less prone to flow)
than ordinary solder so use caution not to let solder bridges
occur such as on IC pins, etc.

• Usable with ordinary solder
It is best to use only unleaded solder but unleaded solder may
also be added to ordinary solder.

TABLE OF CONTENTS

1. GENERAL ................................................................... 3

2. DISASSEMBLY

2-1. Disassembly Flow ........................................................... 4

2-2. Wire Cover ...................................................................... 4

2-3. Top Panel ......................................................................... 5

2-4. Side Panel, Front Panel Section....................................... 5

2-5. DIAT POWER Board ...................................................... 6

2-6. DIAT AMP Board............................................................ 6

3. DIAGRAMS

3-1. Block Diagram ................................................................ 7

3-2. Schematic Diagram – DIAT AMP Board (1/3) – ........... 9

3-3. Schematic Diagram – DIAT AMP Board (2/3) – ........... 10

3-4. Schematic Diagram – DIAT AMP Board (3/3) – ........... 11

3-5. Printed W iring Board

– DIAT AMP Board (Component Side) – ....................... 12

3-6. Printed W iring Board

– DIAT AMP Board (Conductor Side) – ......................... 13

3-7. Printed Wiring Boards – POWER SUPPLY Section –... 14

3-8. Schematic Diagram – POWER SUPPLY Section – ....... 15

4. EXPLODED VIEWS

4-1. Panel Section ................................................................... 20

4-2. DIAT AMP/DIAT POWER Boards Section .................... 21

5. ELECTRICAL PARTS LIST................................ 22

SAFETY-RELATED COMPONENT WARNING!!

COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE
WITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN
THE PARTS LIST ARE CRITICAL TO SAFE OPERATION.
REPLACE THESE COMPONENTS WITH SONY PAR TS WHOSE
PART NUMBERS APPEAR AS SHOWN IN THIS MANU AL OR
IN SUPPLEMENTS PUBLISHED BY SONY.

2

SECTION 1

GENERAL

LOCATION OF CONTROLS

Surround amplifier

TA-SB500WR

This section is extracted from
instruction manual.

Front panel

POWER

POWER ON-LINE

A POWER
B POWER/ON LINE indicator
C DIR-R1 jack
D SPEAKER jacks

Rear panel

DIR-R1

SPEAKER

SURROUND

L

SURROUND

R

3

TA-SB500WR

• This set can be disassembled in the order shown below.

2-1. DISASSEMBLY FLOW

SET

2-2. WIRE COVER

(Page 4)

2-3. TOP PANEL

(Page 5)

2-4. SIDE PANEL,

FRONT PANEL SECTION
(Page 5)

2-5. DIAT POWER BOARD

(Page 6)

SECTION 2

DISASSEMBLY

2-6. DIAT AMP BOARD

(Page 6)

Note: Follow the disassembly procedure in the numerical order given.

2-2. WIRE COVER

3

two claws

4

wire cover

2

wire (A) holder

1

screw (B3 × 8)

4

2-3. TOP PANEL

3

eight claws

2

4

top panel

1

screw
(DIA. 2.6)

TA-SB500WR

2-4. SIDE PANEL, FRONT PANEL SECTION

1

7

connector
(CN902)

six screws
(DIA. 2.6)

7

connector
(CN901)

6

3

side panel

2

5

two claws

2

8

front panel section

4

two screws
(BVTP3

×

10)

7

connector

5

TA-SB500WR

2-5. DIAT POWER BOARD

7

AMP shield

3

2

two claws

8

two radiation sheets
(DMB)

9

DIAT POWER board

4

two connectors
(CN904, CN905)

2-6. DIAT AMP BOARD

qd

two screws

qa

sheet AMP

(BVTP3

×

6)

1

two screws

0

four screws
(DIA. 2.6)

qg

radiation sheet
(AMP)

qh

DIAT AMP board

6

A sheet power

qf

heat sink assy

7

two claws

5

four screws
(DIA. 2.6)

8

two claws

qs

AMP shield

1

two screws
(DIA. 2.6)

2

two screws
(BVTP3

×

10)

6

two screws
(DIA. 2.6)

9

3

5

back panel

4

cord stopper

6

3-1. BLOCK DIAGRAM

IF +5V

J100

DIR-R1

LPF

X101

12.288MHz

RF DEMODULATOR,

A/D CONVERTER

10

ADVIN

OSCO

4043OSCI

IC102

DAOUT

BCK

LRCK

APX

XRST

CSOD

DTVALID

SRDT

SWDT

SCLK

XSCEN

SCMODE

TA-SB500WR

SECTION 3

DIAGRAMS

• SIGNAL PATH

IC111

STREAM PROCESSOR

60
54
59
31

13

33
61
34

35
37
36
38

IC106
LEVEL
SHIFT

IC103
LEVEL
SHIFT

IC109
LEVEL
SHIFT

SURROUND AMP CONTROLLER

26 XRST_INIT

15 CSOD
14 DTVALID

53 DIAT_SRDT
52 DIAT_SWDT
51 DIAT_SCLK
50 XSCEN
48 SCMODE

IC107

DAMP_SCDT

DAMP_SHIFT

DAMP_LATCH

DAMP_PGMUTE

DAMP_SOFTMUTE

DAMP_NSPMUTE

DRIVE_RST

DRIVE_OCP

61
60
59
33
34
35

37

38

31

DATA

30

BCK

29

LRCK

36

XFSIIN

27

INIT

21

SCDT

22

SCSHIFT

23

SCLATCH

18

NSPMUTE

19

SOFTMUTE

20

PGMUTE

OUTL2

OUTL1

OUTR2

OUTR1

XFSOIN

9

11

4

6

IC114

48

OSC

X103

49.152MHz

POWER DRIVER

17

PWM_AP

2

PWM_BP

POWER DRIVER

17

PWM_AP

2

PWM_BP

PROTECT DETECT

IC110

/RST

4 13

IC112

/RST

4 13

Q107

OUT_A

OUT_B

/SD

OUT_A

OUT_B

/SD

25, 26

29, 30

25, 26

29, 30

LPF

LPF

LPF

LPF

Q108, 109

OVER LOAD

DETECT

Q105, 106

OVER LOAD

DETECT

T100

SPEAKER

(+)

(–)

(+)

(–)

SURROUND

L

SURROUND

R

: AUDIO

D400

POWER/ON LINE

LED DRIVE

Q104, 112

LED DRIVE

Q103, 111

X102

8MHz

22

X0

X1

23

41

LED_GREEN

42

LED_RED

AC CUT

/RESET

V_CONT

MAIN_OFF

17

RESET SWITCH

Q102

+3.3V

19

+1.8V

58

57

VOLTAGE

DETECT

IC105

+1.8V

REGULATOR

IC113

AC CUT

+1.5V

+2.5V

Q110

+1.5V

REGULATOR

IC101

+2.5V

REGULATOR

IC104

+3.3V

REGULATOR

IC108

IF +5V

+12V

+12V

REGULATOR

IC903

DC/DC

CONVERTER

IC904

+30V

SHUNT

REGULATOR

IC905

RECT

D921

ISOLATOR

PC902

POWER

TRANSFORMER

T901

ISOLATOR

PC901

ISOLATOR

PC903

TH901

REGULATOR

+20V

Q901

RECT
D901

D907, 909

D908

D910

D911

OVER LOAD

PROTECT

Q902, 903

TH902

LINE FILTER

LF901, 902

1

7

4

6

5

S901

POWER

D

OCP/BD

VCC

FB

OLP/SS

POWER CONTROL

IC901

(AC IN)

TA-SB500WR

77

TA-SB500WR

20.3 ns

4.5 Vp-p

125 ns

3.5 Vp-p

325 ns

2.5 Vp-p

81.3 ns

2.5 Vp-p

• Note for Printed Wiring Boards and Schematic Diagrams

Note on Printed Wiring Boards:

• X : parts extracted from the component side.

• Y : parts extracted from the conductor side.

f

•

• : Pattern from the side which enables seeing.

(The other layers' patterns are not indicated.)

Caution:
Pattern face side: Parts on the pattern face side seen from
(Conductor Side) the pattern face are indicated.
Parts face side: Parts on the parts face side seen from
(Component Side) the parts face are indicated.

• DIAT AMP board is multi-layer printed board.

• Indication of transistor.

: internal component.

However, the patter ns of intermediate layers have not been
included in diagrams.

C

B

Q

B

E

Q

CE

These are omitted.

These are omitted.

Note on Schematic Diagram:

• All capacitors are in µF unless otherwise noted. (p: pF)
50 WV or less are not indicated except for electrolytics
and tantalums.

• All resistors are in Ω and 1/
specified.

• f : internal component.

• 2 : nonflammable resistor.

• C : panel designation.

Note: The components identified by mark 0 or dotted line

with mark 0 are critical for safety.
Replace only with part number specified.

• A : B+ Line.

• Voltages and waveforms are dc with respect to ground

under no-signal (detuned) conditions.
Note: When mesurering voltages and waveforms, con-

nect with HCD-SB500W (HCD-SB500W states:
DVD play).

no mark : DVD PLAY

∗ : Impossible to measure

• Voltages are tak en with a V OM (Input impedance 10 MΩ).

Voltage variations may be noted due to normal produc­tion tolerances.

• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc­tion tolerances.

• Circled numbers refer to waveforms.

• Signal path.

F : AUDIO

4

W or less unless otherwise

• Waveforms
– DIAT AMP Board –

IC102 rd (OSCO)

1

1 V/DIV, 50 ns/DIV

IC102 tf (BCK)

2

1 V/DIV, 100 ns/DIV

IC107 wd (X1)

3

4

1 V/DIV, 50 ns/DIV

IC114 4

2 V/DIV, 10 ns/DIV

TA-SB500WR

88

TA-SB500WR

3-2. SCHEMATIC DIAGRAM – DIAT AMP Board (1/3) –

(1/3)

J100

DIR-R1

FB101

FB102

FB109

C111

0.01

C110

R102

0.1

820

L102
10µH

L103
10µH

APX

C105 R311

L101

0.01

47µH0

FB110

C113

0.1

R104

3.3k

C108

0.1

R103

330

R105

C115

C114

C104

47

16V

C103

0.1

VOUT VSS

NC VIN CE

R101

10k

+1.5V REGULATOR

XC62HR1502MR

47k

0.001

0.001

IC101

R312

4.7k

C116 R109

0.1 3.3k

PLREF

PLVAR

TESTMD

APVCI

VSS

APCPO

APAVD

APAVS

VSS

VDDI

VDDE

VCOR

CHNUM

DIVCODE

APX

EXTCK

C102

10

50V

C101

0.1

R313 R314C120

2.2k 4.7k0.01

0

1

L

ST

SE

IFM

XR

D

DIFM

DT

T

D

D

DT

SR

CSO

XSCEN

SW

100

100

R106

R108

T

D

D

O

R

S

S

C

• See page 8 for Waveforms. • See page 16 for IC Block Diagrams. • See page 18 for IC Pin Function Description.

C137

10

50V

C149

0.1

L108
10µH

R128

10k

D110

1SS355

R122 C148

10k 0.1

R121

2.2k

L106
10µH

LEVEL SHIFT

TC74VHCT08

C146

0.1

IC106

AFT(EL)

2SC1623-T1

RESET SWITCH

R123

22k

C150

100
10V

VOLTAGE

DETECTOR

IC105

PST3629NR

Q102

-L5L6

MA111-TX

L107

10µH

C152

0.1

R124

C147

0.001

D102

T
D
R
S

C151 R127

0.1 47k

C145

0.22

C156
100p

47k

Q111

DTA114EKA-

T146

ID
L
A
V
T
D

C162

0.01

FB105

D
O
S
C

R126R139

1k100

NC

MOD2

R257

47k

R258

47k

NC

NC

MODEL

SIMUKE

NC

NC

NC

NC

AVCC

AVR

AVSS

DTVALID

CSOD

NC

R152R171C143

10047k0.1

+3.3V REGULATOR

IC108

µPC2933T-E2

OI

G

T

F
F

N

O

O
C

NT

V_CO

P_LATCH

AM
D

SURROUND AMP

CONTROLLER

MB89537APFM

-G-565-BNDE1

X1

X0

FF

AIN_O
M

IC107

C160

0.01

R143

0

R135

10k

SE

VCC

T_SEN

ST_INIT

XR

FS2_EX

VSS

R142

100

100
10V

R256

3.3k

C
N

SI2

INT24

P_SCDT

P_SHIFT

AM

DAM

D

T

0

1

OD

AC CU

DTA114EKA-

AC CUT

OD

M

NC

M

/RESET

X102

8MHz

R129 C253 R131

100 0.22 47k

Q110

T146

R111

220

R110

1k

E

SS

VIN

V

DD
V

AD

RF DEMODULATOR

A/D CONVERTER

E
D
O

SCM

SCLK

VSS

C124 C129

10p 33p

C122 C125
100p 100p

R113R112

100100

R116

68

L

VR

AD

IC102

CXD4017R

SCI
O

12.288MHz

R117 C138

10k 0.1

+2.5V REGULATOR

IC104

TK11225CMCL-G

CNT

GND

GND

L104 10µH

C128

47 16V

C132

C131

E

S

H

D

SS

VD

AV

V

D
V

DVR

AD

ADA

A

1

E

T0

CO

S
DD
V

VS

OS

TEST

TES

X101

R114

100

C126C123
100p100p

N
E
C
S
X

T
D

W
S
_
D

FB103

DAOUT

TXOUT

0.1100

TEST7

TEST6

TEST5

FB104

L105
10µH

C134

C130C119

1

0.10.1

XTST

LRCK

VDDI

VSS

VDDE

BCK

ICLK

C107

C109

47

0.1
16V

LEVEL SHIFT

IC103

TC74VHCT08

AFT(EL)

1

1

M

ST

CK

M

XS

M
S

EMPFS1

EMPFS0

DTVALID

SYMCLK

ST4
EST2
T

TE

TEST3

C141R115

E
D
O
M
C
S

K
L
C
S
_
D

CNPINOUT

C135

0.1

C140

10

50V

R120

1k

R118

1k

R119

1k

DTVALID

DAOUT

LRCK

BCK

C142

0.01

C136

47

16V

C127

0.1

C133

0.1

Q103,104,111,112

LED DRIVE

Q112 Q104

DTA114EKA-

T146

Q103

DTC114EKA-

T146

C161C163
100
16V

100p

100p

100p

C157

R140

100

R138

R137

R144

R145

R141

C
N

NC

R253

47k

R252

10k

DT

DIAT_SR

NC

DT

IAT_SW

DIAT_SCLK

D

DAMP_NSPMUTE

DAMP_SOFTMUTE

DAMP_PGMUTE

P23

P22

C
N

XSCEN

SCMODE

LED_RED

LED_GREEN

DRIVE_OTW

DRIVE_OCP

DRIVE_RST

C

NC

N

100p

10p

C153

C155

C158

C154

100

100

100

100

100

R151

NC

NC

NC

NC

NC

P10

DTC114EKA-

T146

100p

C159

SCLATCH

SCDT

SCSHIFT

D_SWDT

D_SCLK

XSCEN

100

100

10k

R149

R150

R254

100

SCMODE

100

R260

100

R261

100

R262

100

R148

N-MUT

100

R147

S-MUT

100

R146

P-MUT

CUT

R100

150

R125

150

CNP102

3P

GND

RED

GRN

(Page 15)

CNP103

6P

MAIN-OFF

1k

AC-CUT

1k

V-CONT

100

DGND

DGND

5V

(Page 15)

A1

A2

A3

FB106

R165

OFF

CUT

R259

CONT

R136

FB107

(Page 10)

EB102

B1

B2

B3

B4

(Page 11)

TA-SB500WR

B5

99