Sony Ta-av411 User manual

SERVICE

MANUAL

TA-AV411

US

Model

SPECIFICATIONS

AUDIO

POWER

SPECIFICATIONS

POWER

OUTPUT

AND

TOTAL

HARMONIC

DISTORTION:

With

8-ohm

loads,

both

channels

driven,

from

40

-

20,000

Hz;

rated

135

watts

per

channel

minimum

RMS

power,

with

less

than

0.9%

total

harmonic

distortion

from

250

milliwatts

to

rated

output.

Amplifier

section

Power

bandwidth

(IHF)

30

Hz

—

30

kHz

(8

ohms)

Dynamic

headroom

1.7

dB

(‘78

IHF)

Harmonic

distortion

Less

than

0.9%

at

rated

output

(Surround

OFF)

Frequency

response

PHONO:

RIAA

equalization

curve

CD,

VIDEO,

TUNER,

TAPE:

30

Hz

~-

30

KHz

+3dB

15

W

+

15

W

(8

ohms)

27

(8

ohms,

1

kHz)

Surround

output

Damping

factor

Input

jack

|

J@Ck

|

Sensitivity

|

Impedance

|

S/N

(weighting

_type

network,

input

level)

71

dB

PHONO

Phono

|

3.0

mV

50

kohms_

|

75

dB”

(A,

3.0

mV)

CD,VIDEO,

92

dB

TUNER,

Phono

|

250

mV

50

kohms-

|

83

dB”

TAPE

(A,

250

mV)

“78

IHF

Output

TAPE

Phono

jacks

Voltage

150

mV

(REC

OUT)

Impedance

1

kohm

SPEAKERS

Accepts

speakers

of

8

-

16

ohms

HEADPHONES

|

Stereo

phone

Accepts

low

and

high

jack

impedance

headphones.

GRAPHIC

EQUALIZER

controls

Boost/Cut

range:

+8

dB

(100

Hz,

330

Hz,

1

kHz,

3.3

kHz)

+6

dB

(10

kHz)

General

Power

requirements

120

V

AC,

60

Hz

Power

consumption

250

W

3

switched,

120

V/1

A

max.

Approx.

430

x

145

x

360

mm

(w/h/d)

(17

x

55/g

x

141/,

inches)

Weight

Approx.

9.9

kg

(21

Ib

14

02}

Accessories

supplied

Remote

Commander

RM-U212

(1)

Sony

batteries

SUM

3(NS)

(2)

AC

outlets

Dimensions

Design

and

specifications

subject

to

change

without

notice.

INTEGRATED

STEREO

AMPLIFIER

SONY.

TA-

AV411

:

SAFETY

CHECK-OUT

After

correcting

the

original

service

problem,

perform

the

following

safety

check

before

releasing

the

set

to

the

customer:

Check

the

antenna

terminals,

metal

trim,

“metallized”

knobs,

screws,

and

all

other

exposed

metal

parts

for

AC

leakage.

Check

leakage

as

described

below.

LEAKAGE

TEST

The

AC

leakage

from

any

exposed

metal

part

to

earth

ground

and

from

all

exposed

metal

parts

to

any

exposed

metal

part

having

a

return

to

chassis,

must

not

exceed

0.5mA

(500

microampers).

Leakage

current

can

be

measured

by

any

one

of

three

methods.

1.

A

commercial

leakage

tester,

such

as

the

Simpson

229

or

RCA

WT-540A.

Follow

the

manufacturers’

instructions

to

use

these

instru-

ments.

2.

<A

battery-operated

AC

milliammeter.

The

Data

Precision

245

digital

multimeter

is

suitable

for

this

job.

3.

Measuring

the

voltage

drop

across

a

resistor

by

means

of

a

VOM

or

battery-operated

AC

volt-

meter.

The

“limit”

indication

is

0.75

V,

so

analog

meters

must

have

an

accurate

low-

voltage

scale.

The

Simpson

250

and

Sanwa

SH-63Trd

are

examples

of

a

passive

VOM

that

is

suitable.

Nearly

all

battery

operated

digital

multimeters

that

have

a

2V

AC

range

are

suitable.

(See

Fig.

A)

To

Exposed

Metal

Parts

on

Set

AC

voltmeter

(0.75

V)

Earth

Ground

.

Using

an

AC

voltmeter

to

check

AC

leakage.

TABLE

OF

CONTENTS

Section

Title

Page

SPECIFICATIONS

Cee

emer acer

esr

ee

nesensecreserereeesuees

1

1.

GENERAL

eee

ee

Re

ie

ee

a

ee

3

2.

DIAGRAMS

2-1.

Description

on

IC101(

¢PD75206-717-3BE)

-::--

6

2-2.

Key

operation

i

ee

er

8

2-3.

MATRIX

for

FL

tube

and

KEY

IN-:::--+::::

12

2-4.

Description

on

IC303

(LV1001M)----++++++++:

14

2-5.

Circuit

Boards

Location

«+++

+sseseer

ee

eeeeees

16

2-6.

Semiconductor

Lead

Layouts::+++++ereseeeeees

17

2-7.

Printed

Wiring

BoardsS:sceercersceceescvcsevcee

18

2-8.

Schematic

Diagram

err

ee

er

ee

eee

ee

23

2-9.

IC

Block

Diagrams

Cece

ease

cnensesneseencanseces

26

3.

EXPLODED

VIEWS

3-1.

Overall

Section

Lessserseseeceeccescresceceeecs

27

3+

2.

Overall

“Section

2

se1etserieritse

des

pastes

re

28

6.

ELECTRICAL

PARTS

LIST

--+-+++eesseeereeeeeees

29

SAFETY-RELATED

COMPONENT

WARNING!!

COMPONENTS

IDENTIFIED

BY

MARK

A

OR

DOTTED

LINE

WITH

MARK

A

ON

THE

SCHEMATIC

DIAGRAMS

AND

iN

THE

PARTS

LIST

ARE

CRITICAL

TO

SAFE

OPERATION.

REPLACE

THESE

COMPONENTS

WITH

SONY

PARTS

WHOSE

PART

NUMBERS

APPEAR

AS

SHOWN

IN

THIS

MANUAL

OR

IN

SUPPLEMENTS

PUB-

LISHED

BY

SONY.

TA-

AV411

SECTION

1

GENERAL

This

section

is

extracted

from

1-1.

Location

and

Function

of

Controls

instraction

manual.

TA-AV411

Amplifier

SYSTEM

POWER

switch

When

the

SYSTEM

POWER

switch

is

turned

ON,

the

settings

on

the

display

panel

are

automatically

reset

the

original

setting.

SPEAKERS

selector

INPUT

BALANCE

control

Display

window

[5]

Function

selectors

[6]

BALANCE

control

MASTER

VOLUME

control

DBFB

switch

[9]

Graphic

equalizer

controls

REAR

LEVEL

buttons

SURROUND

MODE

selectors

HEADPHONES

jack

Remote

control

sensor

Remote

Commander

MODE

selector

Selects

the

function

mode

on

the

remote

commander.

1:

To

select

the

function

indicated

in

light

gray

such

as

DECK,

DAT,

CD

player

and

surround

mode

of

amplifier.

2:

To

select

the

functions

indicated

in

blue

such

as

VTR,

LDP

(Laser

disc

player)

and

TV.

Installing

Batteries

CDP/LDP

control

section

The

combined

CD/LD

player

can

be

controlled

with

LDP

position.

>:

Play

i:

Pause

m:

Stop

D

(disc)

SKIP:

Disc

skip

(for

a

CD

player

equipped

with

a

multi-disc

changer)

</>»;

Manual

search

(only

for

LD

player)

</>:

Locates

a

desired

selection.

Amplifier/TV

section

TVMIDEO

button:

Selects

the

input

signal

of

the

TV.

(for

TV)

Program

number

(1

to

0)

and

ENTER

buttons:

Select

the

channel.

(for

TV)

SURROUND

mode

selectors

(for

the

amplifier)

ON/OFF:

Turns

on/off

the

surround

mode.

MODE:

Selects

the

surround

mode.

FUNCTION

selectors:

Select

an

input

source

of

the

amplifier.

(for

the

amplifier)

REAR

VOL

/TV

VOL

+/-

buttons:

Control

the

volume

of

rear

speakers

(surround

level)

or

TV.

DBFB

button:

Turns

on/off

the

DBFB

(Dynamic

Bass

Feed

Back).

(for

the

amplifier)

MASTER

VOL

+/—

buttons:

Control

the

amplifier

volume.

(for

the

amplifier)

Tuner/TV

section

SHIFT

and

TUNER

PRESET/

TV

CH

(channel)

+/-

buttons:

Select

a

preset

channel

of

the

tuner

or

a

channel

of

the

TV.

Tape

deck/VCR

control

section

DECK/VTR

selector

DECK

A,B,

and

DAT:

Selects

A,B,

or

DAT

deck.

VTR

1,

2,

and

3:

Selects

VCR

type.

(1:

Betamax

VCRs,

2:

8

mm

VCRs,

3:

VHS

VCRs)

ll:

Pause

m:

Stop

<</>~:

Fast

winding

</>:

Play

@

(REC):

Recording

ANT

(antenna)

TV/VTR

button:

Selects

the

output

signal

from

the

antenna

terminal

on

the

VCR,

either

a

TV

signal

or

VCR

programs.

VTR

CH

(channel)

+/-

buttons:

Select

channel

on

the

VCR.

Power

control

section

SYSTEM

OFF

button:

Turns

off

the

power

of

the

whole

system:

LDP,

VTR,

TV,

and

AUDIO.

LDP/VTRIVVTR2NVTR3/TV/AUDIO

POWER

buttons:

Control

the

power

of

each

unit.

(The

VTR

button

can

be

operative

only

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TA-AV411

|

SECTION

2

DIAGRAMS

2-1.Description

on

1C101

(yu

PD75206-717-

3BE)

1/0

See

Pim

|

Por

ACT

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DRLC

SW

A

1

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SW

DOLBY

SW

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3

B

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as

High

:

High-impedance

status

In

:

Input

status

|

TA-AV411

|

2-2.

Key

operation

(7)

SIM

PORT

Key

input

has

priority

over

serial

input.

The

port

is

turned

to

”L”

when

SIM

is

selected.

(Key

input,

Serial

input)

Note

1.

SURROUND

ON/OFF.

(1)

Setting

(2)

FUNCTION

Key

(PHONO,TUNER,

CD,

TAPE,

VIDEO1-4)

operation

These

keys

execute

operations

below

when

pressed.

FUNCTION

IC

-+++:++-

Serial

data

REC

OUT

SW-:::::s::

Static

data

VIDEO

SW:seeeeeeeeces

Static

data

FRONT

MUTE:::::°:::

One

shot

REAR

MUTE

:::::::+::

One

shot

(3)

REAR

MUTE

PORT

The

port

is

turned

to

”H”

by

switching

to

SURR

ON,

MODE

or

FUNCTION.

(Key

input,

Serial

input)

Also

the

port

is

”"H”

three

seconds

after

POWER

ON

is

selected.

REAR

MUTE

PORT

has

priority

over

other

ports

to

output

when

POWER

OFF

is

selected

and

operates

when

SUB

VOLUME

is

turned

to

~.

However

there

is

no

output

for

the

port

switching

the

main

FUNC

TION

when

DRLC

ON

is

selected.

(4)

DRLC

CONTROL

PORT

(used

for

SP

relay

too)

The

port

is

turned

to

”H”

only

when

DRLC

ON

is

selected.

(Key

input,

Serial

input)

(5)

POWER

RELAY

PORT

The

port

is

turned

to

”H”

when

either

POWER

ON

or

DRLC

ON

is

selected.

(Key

input,

Serial

input

RM-1,

-RM-2)

Both

MAIN

and

SUB

are

turned

OFF

when

ALL

OFF

serial

input

is

selected.

(6)

DOLBY

PORT

The

port

is

turned

to

"L”

HALL

or

SIM

is

selected.

(Key

input,

Serial

input)

The

relation

between

Switch

ON

and

FUNCTION

Sw

A-AX311/AVA411

1,

PHONO

10000001

2.

TUNER

01000001

3.

CD

00100001

4,

TAPE

00010000

5.

VIDEO

3

none

6.

VIDEO

2

7.

VIDEO

1

8.

VIDEO

4

Serial

data

to

SURR

IC

(LV1001M)

The

delay

time

is

controlled

with

8-bit

data

(short

mode).

The

delay

time

is

decided

by

the

count

time.

(Address

data)

-

FFFF

(short

mode)

none

00000011

none

15mS

*+++++%%

8ABOh

20mS

++eerers

63C0h

SOmS

«++++re-

15A0h

Timing

chart

VOL+/-

RM-~-1

The

operation

is

carried

out

in

100mS

even

though

the

data

fin

ishes

2

frames.

VOL

——_

MIN100mS

MUTE

must

be

switched

100mS

forward

or

backward

during

SURR

MODE

switching

(including

SURR/OFF

switch).

SURR

'

100mS_

:

100mS

MUTE

FRONT/REAR

Port

FL

SUB

VOL

|

TA-

AV411

POWER

ON

(The

same

operation

when

starting

the

buck

up

system.)

POWER

ON

MUTE

FRONT/REAR

POWER

RELAY

The

data

for

SUB

VOL

is

©

when

DRLC

or

SURR

is

turned

OFF.

500mS

DATA

DISPLAY

POWER

OFF

POWER

OFF

MUTE

FRONT/REAR

!

;

100mS

POWER

RY

All

the

light-off

data

FL

DATA

OUTPUT

PORT

The

last

status

—10—

TA-

AV411

DRLC<—SURR

mutual

switching

DRLC/SURR

7

ON

|

:

|

MUTE

FRONT/REAR

Poy

t0Oms

ts

Output

port

FL

tube

data

SUB

VOL

DELAY

TINE

(only

for

SURR

ON

Display

operation

1.

FL

tube

start

timing

92

us

i

100

ws

dig

1

dig

2

dig

3

dig

4

dig

5

dig

6

dig

7

seg

50

us

a

|

ee

2-3.

MATRIX

for

FL

tube

and

KEY

IN

KEY

IN

10

aes

FT

CT

eae

ae

See

NA

A

seg

10

seg

2

O

seg

3

O

seg

4O

eerste

eae

a

ee

oe

ae

ceed

aes

iene

(ae

ea

a

seg

9

O

deg

20

oo

pine

ae

ce

ee

ey

deg

50

deg

6O

ees

=

ae

ee

os

deg

9O

Key

scan

operation

@

Key

input

has

priority

over

serial

input.

@

If

a

key

is

input

10mS

after

the

same

key

was

input,

this

is

recognized

as

a

key

input

and

registers

five

times.

@®

Double-pressing

is

not

accepted,

one

pressing

first

and

being

replaced

by

a

second

has

priority.

@

No

keys

can

be

input

during

POWER

OFF.

©

No

keys

can

be

input

for

1

Second

after

POWER

ON.

Key

scan

operation

Key

in

p

50

|

Key

in

p

51

|

Key

in

p

52

|

Key

in

p

53

|

Key

scan

10mS

Bes,

|e

a

Timing

chart

DRLC

SW

REAR

MUTE

|

:

100mS

DRLC

CONTROL

POWER

RELAY

|

DRLC

display

on

FL

tube

data

SUB

VOL

data

DRLC

FUNCTION

switch

Serial

data

REAR

MUTE

!

100mS

DRLC

FUNC

|

A+B

3

|

100mS

B83:

2-4.Description

on

IC303

(LV1001M)

Explanations

De-couple

capacitor

for

threshold

voltage

Capacitor

for

smoothing

of

rectifier

output

Capacitor

for

sliding

band

filter

and

Delayed

output

Capacitor

for

sliding

band

filter

Capacitor

for

pre-emphasis

Input

filter

for

rectifier

Input

filter

for

rectifier

Reference

voltage

Reference

voltage

Mute

control

Vcc

Output

for

Vpp

Clock

input

for

serial

input,

data

input

for

parallel

input

mode

Data

input

for

serial

input,

data

input

for

parallel

input

mode

Column

address

selection

for

serial

input,

data

input

for

parallel

input

mode

Row

address

selection

for

serial

input,

data

input

for

parallel

input

mode

Connection

to

memory

device

Vss

X’tal

resonator

for

oscillator

X’tal

resonator

for

oscillator

Long

or

Short

mode

selection

Serial

or

Parallal

mode

selection

For

test

mode

Smoothing

for

NR

rectifier

Smoothing

for

NR

rectifier

Capacitor

for

weighting

on

side

chain

path

Input

for

variable

resistor

NR

output

7kHz

low

pass

filter

output

Input

for

NR

Capacitor

for

de-couple

on

NR

Delay

output

or

NR

output

Input

for

mute

circuit

Output

for

mute

circuit

Output

for

7kHz

low

pass

filter

Input

for

7kHz

low

pass

filter

GND

Input

for

right

channel

Input

for

left

channel

Capacitor

for

de-couple

on

Fixed

matrix

output

Noise

shaping

and

delay

input

Noise

shaping

output

Delay

input

signal

mode

select

switch

(L+R/L-—R)

Filter

for

supply

voltage

on

comparator

Capacitor

for

sliding

band

filter

and

local

decoder

output

=)

Input

Address

Port

Timing

SHORT

MODE

MSB

LSB

tSTH

SRAS

SCAC

*

wa

In

case

of

short

mode,

delay

time

setting

is

set

in

above

timing.

The

date

loaded

to

SDATA

is

written

on

the

leading

edge

timing.

In

order

to

select

that

the

data

latch

for

row

address

strobe

or

column

address

strobe

is

loaded,

SRAS

or

SCAS

port

is

controlled.

When

changing

delay

time

setting,

meaningless

data

on

a

memory

are

read.

this

causes

the

pop

noise.

when

SRAS

or

SCAS

is

controlled,

mute

circuit

(pin

55

is

input,

56

is

output)

is

activated.

Mute

time

is

the

same

as

the

delay

time

which

is

set

at

that

time.

(Serial

data

input

mode

only,

On

parallel

data

input

mode,

mute

circuit

is

activated

by

using

the

mute

control

port

18.)

On

long

mode,

input

data

number

is

9,

the

way

of

setting

delay

time

is

same.

—15—

2-5.

CIRCUIT

BOARDS

LOCATION

FUSE

BOARD

SP/TM

BOARD

CN

BOARD

SP/SW

BOARD

SURR

BOARD

HP

JOINT

BOARD

SURR

JOINT

BOARD

SURR-SP

BOARD

HP

BOARD

AMP-R

BOARD

MAIN

BOARD

VOL

JOINT

BOARD

VOL

BOARD

DBFB

BOARD

CONT

BOARD

4

AMP-L

BOARD

4G

2-6.

SEMICONDUCTOR

LEAD

LAYOUTS

CXA1100P

CXA1198AP

M5226P

TC4051BPHB

16

9

ae

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(TOP

VIEW)

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(GND)

in

OUT

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8

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MC14066BCP

TC4001BP

yu

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»

PD75206GF

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717-3BE

(TOP

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LCG7822

(TOP

VIEW)

IRZE31A

123456789

LB1639

Gai

SI-

18752N

x

2SA1175-HFE

2S8C2785-HFE

LETTER

SIDE

DTA124ES

DTA144ES

DTC114ES

DTC124ES

DTC144ES

2SC2603-

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Ec,

2SK246-Y

SGD

2SA733-

QP

2SC945-QP

2SC1815-Y

2SC2682-

QPE

LETTER

SIDE

47s:

TA-

AV411

2SA1684-LK

2804431-LK

2S8D2012

:

HZS6C3L

HZS6C2L

HZS30-1L

;

Cathode

Anode

10E2N

181585

Cathode

Anode

RBA-

402

RBV-602-01

+

ww

SEL2210S-CD

TA-AV411

9

Fg

a

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2-7.

PRINTED

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BOARDS

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AV411

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TA-

AV411

SECTION

3

EXPLODED

VIEWS

NOTE:

e

-

XX,

—X

mean

standardized

parts,

Items

marked

“x”

are

not

stocked

so

they

may

have

some

differences

from

the

original

one.

®

Color

indication

of

Appearance

Parts

since

they

are

seldom

required

for

routine

service.

Some

delay

should

be

anticipated

when

ordering

these

items.

The

components

identified

by

mark

or

dotted

line

with

mark

A\

are

critical

for

safety.

Replace

only

with

part

number

Example

:

The

mechanical

parts

with

no

reference

specified.

KNOB,

BALANCE

(WHITE)...

CRED)

number

in

the

exploded

views

are

not

t

supplied.

,

Parts

color

Cabinet's

color

Hardware

(#

mark)

list

is

given

in

the

3-1.

OVERALL

SECTION

1

not

supplied

Ref.

No.

Part

No.

last

of

this

parts

list.

‘not

|

supplied

Descriptiion

Remark

Ref.

No.

Part

No.

Descriptiion

Remark

1

3-350-426-01

SPRING,

RING

13

1-590-538-11

WIRE,

FLAT TYPE

(7

CORE)

2

4-943-091-01

KNOB

(VOL)

14

1-590-485-11

WIRE,

FLAT

TYPE

(7

CORE)

3

4-943-092-01

PLATECVOL),

LIGHT

GUIDE

15

*

A-4341-682-A

CONT

BOARD,

COMPLETE

4

4-943-420-01

KNOB

(DIA.

19)

16

*

4-943-107-01

HOLDER

(FL

TUBE)

5

1-590-486-11

WIRE,

FLAT TYPE

(7

CORE)

17

*

4-921-941-01

CUSHION

(FL)

6

1-590-487-11

WIRE,

FLAT

TYPE

(17

CORE)

18

A-4323-854-A

|

PANEL

ASSY,

FRONT

T

4-928-635-01

SCREW,

+BV

(2.

6X8)

TAPPING

18

*

1-638-279-11

VOL

JOINT

BOARD

8

3-704-366-01

SCREW

(CASE)

(M3X8)

20

*

1-638-278-11

VOL

BOARD

9

4-931-031-11

CASE

21

*

1-638-277-11

RX

BOARD

10

3-706-165-00

SCREW

22

*

1-638-280-11

|

DBFB

BOARD

11

*

4-943-458-01

PANEL,

BACK

23

*

1-638-284-11

SP

SW

BOARD

12

X-4941-229-1

FOOT

ASSY

(F2112S-M)

24

*

1-638-285-11

HP

BOARD

25

*

1-638-286-11

HP

JOINT BOARD

97

=

3-2.

OVERALL

SECTION

2

CNP901

line

with

mark

are

critical

for

safety.

Note:

The

wth

mark

are

ert

by

mark

A

or

dotted

part

number

specified.

Replace

only

wit

Ref.

No.

Part

No.

Descriptiion

Remark

Ref.

No.

Part

No.

Descriptiion

Remark

51

4-885-901-31

SHEET,

RADIATION

60

*

1-638-271-11

|

AMP-L

BOARD

52

1-533-217-31

HOLDER,

FUSE

61

*

1-638-281-11

|

SURR

SP

BOARD

53

*

A-4341-678-A

MAIN

BOARD,

COMPLETE

CNP901

/A\1-551-478-00

CORD,

POWER

54

*

3-703-244-00

BUSHING

(2104),

CORD

F901

A\1-532-749-11

FUSE,

GLASS

TUBE(6A)

55

%

1-638-273-11

CN

BOARD

F951

”\1-576-107-11

|

FUSE(3.15

A)

56

*

1-638-276-11

FUSE

BOARD

F952.

A\1-576-107-11

FUSE

(3.15

A)

57

*

1-638-282-11

|

SURR

BOARD

(

A

including)

T7901

A\1-450-370-11

|

TRANSFORMER,

POWER

58

*

1-638-287-11

SP, TM,

BOARD

59

*

1-638-272-11

|

AMP-R

BOARD

L9G...

Sony TA-AV411 User manual

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