Sony TA-H6800E User manual

TA-H6800E

SERVICE

MANUAL

Canadian

Model

AEP

Model

UK

Model

E

Model

)

—

Australian

Model

ey

@=—

Tourist

Model

BEAK

>.

This

set

is

the

Pre-Amplifier

section

in

FH-E9X,

MHC-6800.

SPECIFICATIONS

‘Audio

inputs

PHONO

(phono

jacks):

sensitivity

3

mV,

impedance

47

kilohms

VIDEO

1

(phono

jacks):

sensitivity

250

mV,

impedance

47

kilohms

VIDEO

2/MD/DAT

(phono

‘

jacks):

sensitivity

250

mV,

;

impedance

47

kilohms

Video

inputs

VIDEO

1

(phono

jacks):

1

Vp-p/75

ohms

unbalanced,

sync

negative.

VIDEO

2/MD/DAT

(phono

jacks):

1

Vp-p/75

ohms

unbalanced,

sync

negative

Audio

outputs

VIDEO

1

(phono

jacks):

voltage

250

mV

impedance

2

kilohms

VIDEO

2/MD/DAT

(phono

jacks):

voitage

250

mV

impedance

2

kilohms

Video

outputs

VIDEO

1

(phono

jacks):

voltage

250

mV

impedance

2

kilohms

MONITOR

OUT

(phono

jacks):

voltage

250

mV

impedance

2

kilohms

Design

and

specifications

subject

to

change

without

notice.

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.

ATTENTION

AU

COMPOSANT

AYANT

RAPPORT

A

LA

SECURITE!

LES

COMPOSANTS

IDENTIFIES

PAR

UNE

MARQUE

/\

SUR

LES

DIAGRAMMES

SCHEMATIQUES

ET

LA

LISTE

DES

PIECES

SONT

CRITIQUES

POUR

LA

SECURITE

DE

FONCTIONNEMENT.

NE

REMPLACER

CES

COM.

POSANTS

QUE

PAR

DES

PIECES

SONY

DONT

LES

NUMEROS

SONT

DONNES

DANS

CE

MANUEL

OU

DANS

LES

SUPPLEMENTS

PUBLIES

PAR

SONY.

DIGITAL

CONTROL

AMPLIFIER

SONY.

MODEL

IDENTIFICATION

—Model

Number

Label—

SONY

DIGITAL

CONTROL

AMPLIFIER

MODEL

NO.

TA-H6800E

CND

model

:,AC:

120V

60Hz

AEP

model

:

AC:

220—230V~50/60Hz

45W

Italian

model

:

AC:

220—230V~50Hz

45W

SYSTEM

MHC-6800

AC:

220—230V~50Hz

45W

UK

model

:

AC:

240V~50Hz

E,

EA,

JE,

AUS,

MY,

SP

model

:

AC:

110—120/220—240V~50/60Hz

45W

German

model:

@

Abbreviations

CND:

Canadian

model

EA

:

Saudi

Arabia

model

JE

:

Tourist

model

AUS:

Australian

model

MY

:

Malaysia

model

SP:

Singapore

model

TABLE

OF

CONTENTS

Section

Title

Page

1.

GENERAL

Tels.

‘Parts

Tdentilication:

oax..se

aes

mae

eeieadae

ex

Geet

2

2.

SERVICE

NOTES

A.,

Service

Mode

<c.cociadediy

ees

dcaandvawtendeneiion

3

29.

-Sepvic®

POStiON

6

1iacbng

sit

KASS

Ras

CERN

TR

3

3.

DIAGRAMS

a1.

“Circuit

Boards

Location:

«+

a2

otek

tees

eo

4

S2:.

<Block

Dagan:

evaiinos

adie

ew

mess

eee

ees

oF

OS

5

3-3.

Semiconductor

Lead

Layouts...................05.

7

3-4.

Printed

Wiring

Boards—DSP/Pin

Jack

Section—

..8

3-5.

Schematic

Diagram—DSP/Pin

Jack

Section—

....11

3-6.

Schematic

Diagram—Power/Micom/Panel

SACtOnS

=:

acatndeiihon

este

ware

veer

em

terete

olan

aba

16

3-7.

Printed

Wiring

Boards—

Power/Micom/Panel

Sechiolnees

tacuke

sania

ahy

oe

usd

aw

Lew

eaeen

we

21

4.

EXPLODED

VIEW

.....................

0...

c

ee

eee

24

5.

ELECTRICAL

PARTS

LIST

......................

26

EE

AEP ASP ARE

AED

ED

ARE

PCE

ASE

EES

AE

ALE

EE

ALE

HERE

AE

A

LE

HESS

SEE

AIS

ASE

AL

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AES

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SEBS

MISS

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SELES

AE

AES

HSE

AS

MSE EEE

AEA

AEE ASB

NEREs

1-1.

PARTS

IDENTIFICATION

SECTION

1

GENERAL

This

section

is

extracted

from

instruction

manual.

[1]

DIGITAL

MENU

(MENU

1/2/3)

buttons

(106)

[2]

Al

operation

buttons

and

indicators

Al

PROGRAM

1/2

buttons

and

indicator

(130)

AI

L.P.C.

button

and

indicator

(128)

Al

CONDITION

button

and

indicator

(124)

[3]

Function

indicators

(132)

[4]

Display

window

[5]

CONTROLLER

[6]

FUNCTION

AUDIO

selector

(22,

132)

FUNCTION

VIDEO

selector

(22,

132)

DIRECT

button

(104)

[9]

DDS

(Digital

Dynamic

Sound)

button

(118)

DPS

(Digital

Presence

Surround)

button

(116)

[11]

DPE

(Digital

Parametric

Equalizer)

button

(114)

[12]

RELAX

button

(144)

[3]

SLEEP

timer

button

(144)

REC

TIMER

button

(138)

fi5]

CLOCK

SET

buttons

(24)

/TIMER

1,

2

buttons

(134)

DISPLAY

button

(112)

USER

MEMORY

button

(120,

122)

~

fig]

KARAOKE

PON

button

and

indicator

(148)

SECTION

2

SERVICE

NOTES

2-1.

SERVICE

MODE

When

the

test

lands

on

the

panel

board

are

shorted,

this

set

will

enter

the

Test

Mode.

This

allows

you

to

test

the

fluores-

cent

indicator

tube

and

the

LED

display

and

to

turn

power

ON/OFF.

DIGIT.

MEN

TEST

MODE—

POWER

ON—

POWER

OFF—

?

Short

these

two

lands

with

tweezers,

etc.

*

The

Test

Mode

cannot

be

entered

unless

the

POWER

is

turned

ON.

(1)

POWER

ON

In

this

set,

the

control

(AU

BUS)

of

the

power

amplifier

TA-H6800N

is

used

to

turn

the

power

ON/OFF.

Without

this

power

amplifier,

even

if

100Vac

is

input,

the

set

will

be

always

in

the

STANDBY

(POWER

OFF)

state

and

any

test

other

than

clock

operation

check

cannot

be

performed.

Also,

any

power

supply

to

the

AUDIO

system

(A

+10V,

DSP+5V)

is

OFF

and

so

any

energization

check

by

sound

input

is

not

allowed.

Therefore,

the

POWER

ON

test

lands

should

be

used

to

turn

the

power

ON

before

entering

repair.

-

(2)

POWER

OFF

|

This

changes

from

POWER

ON

to

STANDBY

state.

The

fluorescent

indicator

tube

display

will

be

of

half

brightness

to

display

the

clock.

(3)

TEST

MODE

In

the

POWER

ON

state,

when

the

Test

Mode

lands

are

shorted

once:

.

@

All

LED

indicators

are

totally

lit.

(VIDEO

1

and

VIDEO

2/MD/DAT

are

lit

orange

due

to

simultaneous

illumina-

tion

of

red

and

green.)

@)

One

vertical

line

appears

on

the

fluorescent

indicator

tube

surface

and

moves

from

left

to

right.

At

this

time,

make

sure

that

this

vertical

line

is

not

partially

thicker.

(3)

The

fluorescent

indicator

tube

display

is

totally

lit

and

this

operation

is

stopped.

Make

sure

that

the

display

is

illuminating

equally

without

unevenness.

Each

time

the

Test

Mode

land

are

shorted,

the

following

Operations

are

performed

in

turn:

Dolby

sound

in

DSP

menu

is

selected

and

@

The

parametric

equalizer

is

set

to

3dB

up

at

1kHz.

®

The

parametric

equalizer

is

set

to

6dB

up

at

1kHz.

©

The

set

returns

to

the

STANDBY

state

and

the

clock

displays

“0: 00”

(Cold

Start).

All

the

parameters

includ-

ing

clock

will

be

reset.

.

2-2.

SERVICE

POSITION

For

this

set,

with

the

front

and

rear

panels

open,

remove

4

screws

securing

the

power

transformer

and

1

screw

securing

the

AC

inlet.

Then,

by

facing

the

power

transformer

down

as

shown

below,

all

the

boards

can

be

repaired.

MONITOR

board

POWER

board

INLET

board

DSP

board

MICOM

board

SECTION

3

DIAGRAMS

3-1.

CIRCUIT

BOARDS

LOCATION

MONITOR

board

POWER

board

INLET

board

MICOM

board

JACK

board

REG

board

Lf-

x

\>

7,

k

\

-E

Lif

NS"

|

/

Vy,

\\

a\

OA

SS

NY

WON

aN

>

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board

DSP

board

—4—

3-2.

BLOCK

DIAGRAMS

X602

32KHz

MICOM

BOARD

|

PANEL

BOARD

ea

eerie

Brcernnsterenc

ore

1603

JACK

BOARD

|

DSP

BOARD

ets

CN6O}

CN751

|

-

RESET+PD

RESET

*PD

KEY

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4

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ae

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Joy

MD/DAT

SIIck

VIDEO

INPUT/OUTPUT

fo

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JOY

MC

<—=

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24

MONI

TOR

SELECT

Sa

a

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=

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|

2)

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SECTION

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JACK

SECTION—

©

Refer

to

page

7

for

Semiconductor

Lead

Layouts.

[Ref

No.

|

ecation

|

Ref.

No.

[tocation]

]

|

=

1

|

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|

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|

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(PIN

JACK

Board)

@

Abbreviations

G

:

German

model

IT:

Italian

model

I-646—

548—

SYSTEM

CONTROL

TO

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BOARD

CN751

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IT

:

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—16—

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—18—

a0

—~20—

TA-H6800E

3-7.

PRINTED

WIRING

BOARDS—POWER/MICON/PANEL

SECTION—_

«

Refer

to

page

7

for

Semiconductor

Lead

Layouts.

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e

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n

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Abbreviations

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G

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GNeor

IT

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:

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model

EA

:

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Arabia

mode!

AUS:

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model

JE

:

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MY

:

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SP:

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CND:

Canadian

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!-646-547-

D775

D776

ee

ay

|

—23—

Sony TA-H6800E User manual

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