Teac T-X150 Manuale utente

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SERVICE

MANUAL

FX150

Digital

Synthesizer

AM/FM

Stereo

Tuner

>[-X150

1

SPECIFICATIONS

<

FM

TUNER

SECTION

>

<

AM

TUNER

SECTION

>

Tuning

Range

87.5

MHz

—

108

MHz

:

|

Tuning

Range

531 kHz

—

1,602

kHz

Antenna

Impedance

300

ohms

balanced/75

ohms

unbalanced

Usable

Sensitivity

450

pV/m

(Loop

antenna)

Usable

Sensitivity

Mono

11.2

dBf

Selectivity

22

dB

(+9

kHz)

50

dB

Quieting

Sensitivity

Mono

20.2

dBf,

Stereo

40.2

dBf

Image

Response

Ratio

45

dB

(1

kHz)

Image

Response

Ratio

40

dB

Harmonic

Distortion

0.5%

IF

Response

Ratio

85

dB

|

Signal-to-Noise

Ratio

45

dB

Spurious

Response

Ratio

85

dB

Output

Level/Output

Impedance

230

mV/2.2

k

ohms

AM

Suppression

Ratio

45

dB

<

GENERAL

>

Capture

Ratio

1

dB

Power

Requirements

100/120/220/240

V

AC

50/60

Hz,

10

W

Selectivity

65

dB

(+400

KHz)

(General

Export

Model)

Signal-to-Noise

Ratio

Mono

80

dB

(IHF-A

curve),

220

V,

AC

50

Hz,

14

W

(Europe)

Stereo

75

dB

(IHF-A

curve)

240

V,

AC

50

Hz,

14

W

(U.K./Australia)

Harmonic

distortion

Mono

0.1%,

Stereo

0.3%

|

Dimensions

(W

x

H

x

D)

432

x

72

x

289

mm

Stereo

Separation

40

dB

(1

kHz)

(17"

x

2-13/16"

x

11-3/8")

Frequency

Response

30

Hz

—

15

kHz,

+0

dB,

—3

dB

Weight

3.2

kg

(70.4

lbs)

net

Subcarrier

Product

Ratio

60

dB

Standard

Accessories

AM

Loop

Antenna

Output

Level/Output

Impedance

775

mV/2.2

k

ohms

“T’’-type

FM

antenna

(300

0)

except

Europe

Input-output

connection

cords

CAUTION

,

¢

Improvements

may

result

in

specifications

or

features

changing

without

.

notice.

¢

Photos

and

illustration

may

differ

slightly

from

production

models.

Z\

Parts

marked

with

this

sign

are

safety

critical

components.

They

must

always

be

replaced

with

identical

components

—

refer

to

the

appropriate

parts

list

to

ensure

exact

replacement.

2

VOLTAGE

CONVERSION

(FOR

GENERAL

EXPORT

MODELS

ONLY)

AC

VOLTAGE

SELECTION

This

unit

operates

on

110

volts

or

220

volts

AC.

110V

220V

ie

ae

=

ae

ra

ded

2

this

ude:

wne

ewiteh

ne

Slide

the

ate

-

.

LEFT

position

as

RIGHT

position

as

switch

matches

your

line

voltage.

If

not,

it

must

be

set

to

your

voltage

in

accordance

with

the

following

direction.

drawing

as

below

drawing

as_

below

AC

SELECTOR

mu

pom

©

Ll

©

3

ADJUSTMENT

AND

TEST

POINT

LOCATIONS

IFT101

IFT302,

IFT303

TVR301

TVR401

TVR402

PE

O

{FT301

emg

fo)

P40

OP3

L107

,

408

68

TVR301

va

|

IFT303

IFT302

o

L109

[o

|

TVC201

O

ao

PFO

P7

y)

O

TVC202

\FT201

P13

=

[o|

SIGNAL

indicator

(AM)

AM

IF

transformer

-X150

4

ALIGNMENTS

4-1

GENERAL

NOTICES:

1.

As

for

indicating

antenna

input

voltage

in

dB,

0

dB

is

referenced

to

1

nV

unless

otherwise

specified.

2.

Make

sure

that

the

T-X150

is

properly

set

for

the

voltage

in

your

locality.

3.

In

the

alignment

procedure

charts,

the

instruction

in

the

SETTING

column

at

each

step

is

continued

from

the

unless

otherwise

specified.

4-2

MEASURING

EQUIPMENT

FM

signal

generator

(SG)

Stereo

modulator

AM

signal

generator

(SG)

Test

loop

antenna

lmpedance-matching

network

Frequency

counter

AC

voltmeter

DC

voltmeter

|

A

differential

voltmeter

is

preferable.

Oscilloscope

Distortion

meter

a

4-3

FM

SECTION

NOTES

ON

TEST

SETUP

AND

ALIGNMENT

PROCEDURE

CHART

The

relationship

between

output

level

indication

(dB)

of

FM

SG

(signal

generator)

and

tuner's

antenna

input

power

(dBf)

under

the

condition

shown

in

Fig.

4-1

is

as

follows:

—

A.

When

the

FM

SG

level

indicator

shows

the

open-end

output

voltage

(dB)

dBf

=

FM

SG

level

indication

(dB)

—

6.8

dB

FM

SG

level

indication

(dB)

=

dBf

+

6.8

dB

STEREO

MODULATOR

FM

SIGNAL

750

IMPEDANCE-MATCHING

GENERATOR

NETWORK

FM

ANT

B.

When

the

FM

SG

level

indicator

shows

the

matched-end

output

voltage

(dB)

dBf

=

FM

SG

level

indication

(dB)

=

0.8

dB

FM

SG

level

indication

(dB)

=

dBf

+

0.8

dB

The

FM

section

chart

applies

the

principle

stated

in

A.

For

example,

if

the

antenna

input

power

of

the

tuner

(dBf)

is

65

dBf,

the

FM

SG

level

indicator

will

read

71.8

dBf

=

72

dBf.

AC

VIVM

75Q

(EUROPE)

3000

(Others)

OUTPUT

TUNER

:

aoe

OSCILLOSCOPE

DISTORTION

METER

Fig.

4-1

Test

setup

for

FM

section

alignment

Initial

tuner

settings:

FM/AM

function

selectors:

FM

‘

MONO

ADJUSTMENT

POINT

4-3-1

FM

MONO

ALIGNMENT

ITEM

SETTING

-

1

FM

tracking

Roe

MONO/ST

e

Stereo

modulator

Modulation

frequency:

1

kHz

Modulation

level:

100%

(75

kHz)

OUTPUT

MODE

sw:

MONO

¢

FM

SG:

Freq.:

98

MHz

Modulation

level:

100%

(75%

kHz)

2

FM

sensitivity

and

distortion

e

T-X150:

Connect

DC

voltmeter

between

P3

and

P4

Level

indication:

72

dB

(Tuner

ANT

input:

65

dBf)

IFT-302

Between

P3

and

P4

MEASURING

POINT

No

adjustment

required.

DC

voltmeter:

OV

ITEM

SETTING

ADJUSTMENT

POINT

MEASURING

POINT

IFT-303

-5

Repeat

steps

2-3

through

2-4

to

obtain

the

least

possible

distortion.

3

SIGNAL

ee

Adjust

until

the

5th

indicator

(FM)

TVR301

SIGNAL

indicator

LED

starts

to

light

up.

Afterwards,

disconnect

the

DC

voltmeter.

¢

Output

level:

4-1

Check

|

OUTPUT

v.1V

+3

dB

4-3-2

FM

STEREO

ALIGNMENT

ADJUSTMENT

Fine-adjust

for

min.

distortion

2

FM

sensitivity

OUTPUT

and

distortion

(cont'd)

NO

>

RO

4

FM

mono

output

level

Note

the

actually

measured

level

as

ref-

erence

for

5-1.

¢

Distortion:

0.12%

Initial

tuner

settings:

FM/AM

function

selectors:

FM

AUTO

TUNING

:

ON

MONO/ST

:

STEREO

ADJUSTMENT

POINT

MEASURING

POINT

ADJUSTMENT

e

Stereo

modulator:

|

Pilot:

8%

(6.0

kHz)

L

+

R

(MAIN):

90%

(67.5

kHz)

Modulation

frequency:

1

kHz

°

FM

SG:

Frequency:

98

MHz

Level

indication:

72 dB

(Tuner

ANT

input:

65

dBf)

T-X150

Connect

frequency

counter

between

and

GND.

Stereo

modulator:

PILOT

sw:

OFF

Frequency

counter:

19

kHz

(+50

Hz)

1

VCO

frequency

Between

P9

and

GND

Frequency

counter:

to

be

stabilized

at

19

kHz.

Stereo

modulator:

PILOT

sw:

ON

T-X150

Disconnect

frequency

counter.

Stereo

modulator:

OUTPUT

MODE

sw:

L

als

To

be

illuminated

when

STEREO

indicator

19

kHz

is

stabilized.

Stereo

modulator:

Minimize

1

kHz

leakage

OUTPUT

MODE

sw:

R

L-ch

of

L-ch.

Repeat

steps

2-1

and

2-2

until

the

level

of

leakage

at

each

channel

becomes

equal.

¢

Distortion:

0.3%

¢

FM

separation:

40

dB

Minimize

1

kHz

leakage

of

R-ch

OUTPUT

2

FM

stereo

separation

e

Stereo

modulator:

OUTPUT

MODE

sw:

L

+

R

(MAIN)

3

FM

stereo

output

level

Check

OUTPUT

T-X150

4-4

AM

SECTION

Test

loop

antenna

Antenna

OSCILLOSCOPE

DISTORTION

METER

AM

SIGNAL

GENERATOR

Fig.

4-2

Test

setup

for

AM

section

alignment

4-4-1

AM

ALIGNMENT

Initial

tuner

settings:

FM/AM

function

selectors:

AM

MODE

:

Any

position

ITEM

SETTING

ADJUSTMENT

POINT

MEASURING

POINT

ADJUSTMENT

1

AM

tracking

|

No

adjustment

required.

¢

Connect

the

test

loop

antenna

only

to

the

AM

SG

and

set

as

illustrated

in

Fig.

4-2.

e

AM

SG:

Frequency:

603.

kHz

Modulation:

1

kHz,

30%

OUTPUT

Level

indication:

100

dB

Disconnect

the

test

loop

antenna

from

the

AM

SG.

Connect

the

200

pF

dummy

antenna

between

the

AM

SG

and

T-X150's

AM

antenna

terminal.

¢

AM

SG:

SF

SM

Out

Tener

Frequency:

999

kHz

Level

indication:

74

dB

|

¢

T-X150:

2-2

3-1

3-2

Tune

to

999

kHz

4

SIGNAL

AM

SM

semi-fixed

indicator

(AM)

resistor

AM

ANT-L

core

I

AM

OSC-L

core

|

AM

IF

transformer

<

2

AM

sensitivity

Fine-adjust

for

max.

and

distortion

output

level

with

min.

distortion

°

Output

level:

—

230

mV

+

3

dB

*

Distortion:

1%

Adjust

until

the 5th

LED

starts

to

light

up.

OUTPUT

SIGNAL

indicator

5

BLOCK

DIAGRAM

VCO

ADJ.

ANTIBRDIE

FILTER

CERAMIC

FILTER

IF

AMPL

FILTER

,

FM

IF

DETECTOR

AMPL

uIO!

FM

SIGNAL

ADJ.

GND

AM

MUTING

ADJ.

BUFFER

AMPL

RF

IF

AMPL

MIXER

AMPL

DET

OUT

PNA

AT

AM

ICI

MHz

(11)

FM

IL

KHz

STEREQ

Oot

co

oc

co

mae

|

7.2MHz

CRYSTAL

(J

CRI

PLL

SYNTHESIZER/CONTROL

OPERATION

BUTTON

FMIAM

SWITCH

00000

00000000

0

MEMORY

1-10/11-20

1/41

2/12

3/13

4/14

5/15

dees,

tee

ye

ee

Sa

0

OO

000000

0

6/16

77

8/18

9/19

10/20

Fig.

5-1

el

a

es

00000

00

0

DOWN

UP

FM

AM

TUNING

O00

0

MONO/ST

AUTO/MANU

FM

STEREO

MPX

DECODER

Ul02

DISPLAY

+

15V

+6V

ADJ.

A143

STABL

SEPARATION

-_

OUTPUT

|

©)

MUTING

Q102/Q103

MUTING

CONTROL

Q109/Q110

POWER

TRANSFORMER

6

e

DI01

AC

POWER

IN

el

Ee

110/220V

AC

SELECTOR

ae

6

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T-X150

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SUPPLY

FOR

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120V

GOHz

MODEL

8.

EXPLODED

VIEW

PARTS

LIST

REF.

NO.

Oo

SSP

Oe

ta

PARTS

NO.

PNLALO185X

153

RUB4000800506

ARK*

*0203*

**7

CHAC*0898X157

CHAC

*0974X158

KNBKY0167B**8

GSKKB0194B**5

LEDO50020RS*7

PHSSUF12AA3*3

STNS*0063*

**9

STNE*0178***5

LEDR8000*MS*9

ARK*

*0204***9

PCBS

*0A817B23

CHAA*0112***4

CLT02802805*2

KNBKY0168B**

1

PCBS

*0A817A23

KNBKY0166B**6

GSKKB0199B*

*4

CHACLO903*

152

481918E2***T7

481918B2***T6

481918A2***T2

481918S2***T8

UTWC*0346***1

NUT03006020*3

PCBTUOA801

*36

RAPH

*0050*

**0

RCKYKO00802P0

SPHSC0061***8

CHAC*02530T12

CHACRO902X153

CHAC*0900X151

CHAC*0899X159

CLP*

*0000*

**

1

INKHTOO09*

*

*0

CHATR2358A

*

*2

CLPB*0007***5

CHAPHO00116*

1

CHAC

*0901X153

SCECM4006BW

*

2

SCECM4046BC

*3

SCECT3006BU*6

SCECM3006BC*8

SDY55DRO065*0

SCECM2608BC

*9

SCECTO109BCP7

SCECM3008YC*2

FTP**0018***1

SCECM4008BW

*6

SCECT3008BC*

1

SCECT3004YC*3

SCECT3006YC*7

FBW04010010*9

SCECT

2606YC*4

SCECM3006YC*9

FTW03208005*7

ICCNJO7890A

*8

ICCNJO7815A*9

STNVC100180*

1

SLSESD271U**0

SCECM3005BU*6

ITDT*

*X150*37

DESCRIPTION

Front

Panel

L-185

Sponge

Cushion

40x8x5

Acry

Plate

A-203

Front

Chassis

C-898

Power

Sw

Holder

C-974

Push

Knob

KB-167B

Washer

for

Push

Knob

A-194(B)

Power

LED

2x5

Orange

Red

Push

SW

SPUF12AA03

Copper

Post

S-063

Copper

Post

E-178

LED

display

R-8000

P.V.C.

Film

E-175

Acry

Panel

A-204

PCB

S-A817(B3)

Push

SW

Level

A-112

Flet

D-O031A

Push

Knob

KB-168(B)

PCB

S-A817(A3)

Push

Knob

KB-184B

Washer

for

Push

Knob

A-199(B)

Left

Chassis

C-903

Transformer

EUR

481918E2***T

Transformer

EUR

UK

481918B2***T

Transformer

USA

481918S2***T

Transformer

EX

481918S2***T

Pad

for

Transformer

Chassis

Nut

M3

PCB

TU-A801(3)

Heat

Sink

H-050

RCA

Jack

KC21-0008

Insulator

SC-061

P.C.B.

Holder

C-253

Right

Chassis

C-902

Bottom

Chassis

C-900

Rear

Chassis

C-899

Weld

3¢

75-ohm

Socket

HTR-0009

Antenna

Terminal

4TR-2358A

Bushing

B7

AC

Cord

CEEx2C

VDE

AC

Cord

SPT-2

AWG

18x2C

AC

Cord

SPT-2

AWG

18x2C

(POLARZED)

AC

Cord

BS6500

Ac

Cord

(AUS

SAA)

Rod

Ant

RA-5574A

Anternna

Holder

R-00025B

Upper

Cover

C-901

Screw

CRWMS

4x6

Screw

CRMS

4x46

Screw

CRTS

3x6

Screw

CRMS

3x6

Antenna

Holder

Screw

CRMS

2.6x8

Plastic

Screw

1/8x9

Screw

CRMS

3x8

Foot

Cushion

18¢x10mm

Screw

CRWMS

4x8

Screw

CRTS

3x8

Screw

CRTS

3x4

Screw

CRTS

3x6

Insulation

Washer

3.2x10x1

Screw

CRTS

2.6x6

Screw

CRMS

3x6

Washer

3.2x10x1

IC

JRC

7806A

IC

JRC

7815A

Copper

Post

E-161

Slide

SW

Slotted

Head

Screw

3x6

Owner's

Manual

Styrofoam

PF-054

Inside

carton

Outside

carton

(Fore

in

one)

13

REMARKS

_

EUR

EX

USA,

CND

EUR

UK

EX

T-X150

[-X150

9

PC

BOARD

AND

PARTS

LIST

9.1

TUNER

PC

BOARD

TU-A801

(3)

AND

PARTS

LIST

14

Teac T-X150 Manuale utente

Manuali Sintonizzatore popolari di altre marche