Teac AG-680 Bedienungsanleitung

TEAC

SERVICE

MANUAL

AG-680

AM/FM

Stereo

Receiver

boards

shown

are

viewed

from

parts

side.

The

parts

with

reference

number

parts

number

the

exploded

views

are

not

supplied.

regards

the

resistors

and

capacitors,

refer

the

circuit

diagrams

contained

this

manual.

Parts

marked

with

this

sigh

are

critical

components.

They

must

replaced

with

identical

components

refer

the

appropriate

parts

list

and

ensure

exact

replacement.

Parts

[

]

mark

can

used

only

with

the

version

designated.

[J]:

JAPAN

[US]:U.S.A.

[C]:

CANADA

{E]:

EUROPE

[UK]:U.K.

[GE]:

GENERAL

EXPORT

NOTES

9A07472100

CONTENTS

CIFIC

ATION

vated

cate

Cee

ete

way

een

hea

uate

tone

ad ee

eee

LEAPING

GING

THOM

4etamce

tie

Serta

tle

aac

kat

RAN

cate

ott

oer

simran

BEOGCK

DIBGRAM

isc

theta

terete

lla

tis

ahh

tees

tet

tld

MEASUREMENTS

AND

ADJUSTMENTS.

.........

00.

ccc

cece

ese

eceeeaeeeseeaeneeeeeunvneens

WIRING

DIAGRAM

ice

scisnetuitel

eds

iia

aac

ection

cea

hiteaaten

ocak

veh

cote

ala

awace

doce

BEOCK

DIAGRAM

wicssste

steko

adaa

bul

eateaae

aud

preter

ater

auh

acne

aetoa

tees

SCHEMATIC

DIAGRAM

cucinsncandalcdetdedlble

clea

air

eleeadl

dulanes

Los

eon

gorene caenae

ores

PRINTED

CIRCUIT

BOARDS

assbeusirmaridedincs

ated

cca

alads

tea

baie

Seracin

dngn

Gale

EXPLODED

VIEW

‘at

derutavd

enaoscnatineawe

meno

saea

eeaec

nats

dak

aoe

cote

waa

eetees

ELECTRICAL

RARE

OcLlo

farses

cts

tba

oraendacBatrnacesamenneraced

baes

cena

caledn canes:

Specifications

AMP

Section.

Section

Power

output

100W

Tuning

Range

87.5

MHz

108.0

MHz

(8Q,

1kHz,

0.1%)

(100

kHz

steps)

Total

Harmonic

Distortion

0.05%

Usable

Sensitivity

:3.0W

(95W,

kHz,

8Q)

Image

Rejection

Ratio

:60dB

S/N

Ratio

(Input

Short)

Phono

(IHF-A)

CD,

AUX,

Tape

(IHF-A)

Distortion

(at

60dBwW):

Input

Sensitivity/Impedance

Mono

0.3%

Phono(MM)

6.0mMV/22kQ

Stereo

0.5%

CD,

AUX,

Tape

200mV/22kQ

Signal-to-Noise

Ratio

(at

65dBf,

1KHz)

Maximun

Input

level

Mono:

Phono

80mV

Stereo

CD,

Aux,

Tape

:3V

Stereo

Separation

(1KHz)

Channel

Separation(Input

Short)

(1kHz,

10W)

Section

Tuning

Range

530

kHz

1,720

kHz

Residual

Noise

20Hz

40kHz

(10

kHz

steps)

Frequency

Response

Tone

control

Usable

Sensitivity

dB/m

Bass

(100Hz)

Selectivity

(at

15kHz)

Treble

(10kHz)

Image

Rejection

Ratio

:35dB

Required

Speaker

Impedance

16Q

Distortion

(at

dB/m)

Signal-to-Noise

Ratio

(at

dB/m)

General

Power

Consumption

320W

Accessories

Power

Requirements

120V

AC,

60Hz

[USA]

Loop

Antenna

Dimensions

435

130

310

Weight

(net)

7.0

Standard

Accessories

Remote

Control

Unit

Operator’s

Manual

tmprovements

may

result

specification

feature

changes

without

notice.

SERVICE

MANUAL

FUNCTION

(IC

ANAM1267T)}

No.

NAME

1/0

VDD

LOUDNESS

-20dB

MUTE

N-C

FUNC

MUTE

SPB

TAPE

‘H’

DATA

CLOCK

TUNED

PROTECTOR

17~19|

KEY

MATRIX

22,23,27,30

VSS

BACK

28,29

VOL

UP/ON

XIN

OUT

RESET

REMOTE

BUS

OUT

POWER

DATA

CLOCK

DESCRIPTION

POWER

SUPPLY

(+5V)

LOUD

LED

CONTROL

PORT

-20dB

LED

CONTROL

PORT

FUNCTION

MUTE

CONTROL

PORT

SPEAKER

SYSTEM

CONTROL

PORT

SPEAKER

SYSTEM

CONTROL

PORT

SPEAKER

ON/OFF

CONTROL

PORT

TAPE

MONITOR

FUNCTION

‘H’

EUROPE

VERSIOM

RDS

DATA

CONTROL

PORT

STEREO

CONTROL

INPUT

TUNED

CONTROL

INPUT

PROTECTOR

PORT

KEY

MATRIX

PORTS

GND

A/D

CONVERTOR

REFERENCE

VOLTAGE

BACK-UP

MODE

CONTROL

INPUT

ENCODER

VOLUME

UP/DOWN

8MHz

CRYSTAL

CONNECTING

TERMINAL

SYSTEM

RESET PULSE

INPUT

REMOTE

CONTROL

SIGNAL

INPUT

DATA

OUT

PLL

DATA

CONTROL

PORT

SPEAKER

LED

CONTROL

PORT

SPEAKER

LED

CONTROL

PORT

ON/STBY

LED

CONTROL

PORT

CLOCK

DATA

SPEAKER

‘A’

SPEAKER

‘B’

ON/STAND

[50

VFL

GRID

SEGMENT

OPTION

(-33V)

NEGATIVE

POWER

SUPPLY

FOR

FIP

BLINKING

FIP

GRID

CONTROL

OUTPUTS

FIP

SEGMENT

CONTROL

OUTPUTS

AREA

OPTION

PORT

OPTION

SERVICE

MANUAL

[

U-COM

FUNCTION

BVIANAM!26°’T

ASSIGNMENTS

38588

(

TOP

VIEW

)

core

meee

LON

eee

Hee

TORWNYTMN-SBHRAG---—~--

GAVIAAYHUAeeeCocegcesas

zaON

MON-Grwvprtinn-Srwonwtnn-s&

Core

momgmagrrrrrrerrr

NH YN

YY)

aaa

ooacevHv74RAaAHoHAHA4HAHRAD

OoOg

POR

OPROAR

PAR

Bean

baoag

ababstebsen

oho

cor

Scecmrwwv

€Mn-BeOOQrwonIt

—

err

rPwWWUWDN

KUWNUYNWN

UHH

HUY

YNHH

(S28)

P96

seftr—

~VKK

(S21)

P97

r—

Pe7

(S22)

PD®

r—

Pes

(S23)

POI

[—]

Pes

(S24)

PD2

P@4

($25)

PD3

I—

Pea

($26)

PD4

r——]

Pe2

($27)

PDS

[—

Pe!

($28)

PD6

[——]

Pee

(S829)

PDT

[—)

Pi?

(S3@)

PEB

[—]

PIé

(S31)

PEI

[—

Pts

(1C2)

($32)

PE2

[——]

P14

(PPG)

(833)

PES

c—

P13

(BVO)

(S34)

PE4

(INT2/TC!)

($35)

PES

[—

Pit

(INTI)

(S36)

PE6

[TJ

«PIO

CINT@)

(837)

PE7

[—1

RESET

($38)

PF@

c—

xOUuT

(S39)

PFI

[—J

XIN

tebr

ore

NOSES

Pee

AReT

See

MIWTonoOWOnWAWWROReOOWHWORU

OURO

OROoWdUUUoB

OFFI

TIFF

PPSSSSSS

SSS

SSSA

ESS

aags

Adddddi

sadder

eeteaaes

auaaS

SlReFSCRCLsaelaagase

GGbboGuahaseszesssss

WOUbbeuubustsszeiaza

xxxxx¥x¥Yy¥xwlMn-~

Bia,

Sin,

SSS=ELEXEY

Hever

tlclccis

bao)

one

Ress

BLOCK

DIAGRAM

1/0

Porte

Output

Ports

1/O

Ports

P97 PB7

P77

P1D7

PIE7

! 1 t

' '

PIS PBs

P7®

PSs@

P1D8

PIES

PIF@

Power

}

VOD

Supply

vss

VET

Power

Supply

VKK

Reset

[/0

RESET

System

Controlier

Test

TEST

Standby

Controtier

net.

Timing

Generator

ime

Base

O—bit

Serial

registe

Resonator

XIN

High

Time

Timer

7Counters

Interfaces

Inst.

Gone

ctine:)

xOUT

Frequ

Clock

Decoder

Pins

Low

Generator

Watchdog

Frequ

Timer

B-bit

A/D

Converter

P22

VAREF

PET

{AIN7)

P®7

PIT

P33

P47

' t

P2@

VASS

PEB

(AIN@)

POG

Pie

P38

P4e

1/0

Ports

1C12

(TUNER)

LAI836M

BLOCK

DIAGRAM

TOA

73180

1C22

(INPUT)

LC4966

“eee

mm(S)

Daan

YySaLaEHS

13A37

1S)

mG)

CONTROL

CIRCUIT

vss

DATA

<pod

3183yuL-SSV8-WA

SUPPLY

ALIGNMENT

INSTRUCTIONS

EQUIPMENT

NEEDED:

Signal

Generator

Signal

Generator

Oscilloscope

VTVMIAC,

DC)

Test

loop

antenna

(AW

Adjustment)

Dummy

antenna

(FM

Adjustment)

Stereo

signal

modulator

Frequency

counter

Distortion

analyser

IMPORTANT

Check

power-source

voltage.

Set

the

function

switch

band

aligned.

Keep

the

signal

input

low

possible

adjust

accurately.

Modulation

and

modulation

frequency.

item

Modulati

Modulation

Band

odulation odulation

requency

30%

400Hz

100%(75KHz

Dev.)

400Hz

ADJUSTMENT

POINT

LOOP

ANT

RESET

cedveuebauanercisenteosieescueat

ANT

TERMINAL

C127

T182

Feu

COIL

(9.

1@Hz)

fer

77S

lL?)

——

OBC

COIL

aris

tT)

———

IFT

MONO

THD)

Epa

(eee

711

——

ANT

COIL

IC)

T1@2——

OSC

COIL

‘S}

7183

C127

——

ANT

TRIMMER

(15@3KH2)

1104

——

IFT

T1Q3

——~

IFT

(MONO

T.H

VR11}

—-—

ADS

VR\2

——

MW SD

ADJ

13>

——

PM(AM)

CUP11194

OFFSET

ADJ

TP.

nee

eee

SERVICE

MANUAL

MEASUREMENTS

AND

ADJUSTMENTS

1.FM,

TRACKING

VOLTAGE

ADJUSTMENTS

(FM,

AM)

VOLTMETER

vissccsscsssansssteseennast

CONNECT

TEST

POINT

TP1

and

GND

NO.

Band

Frequency

Adjust

for

Adjustment

87.50MHz

1.5V

530KHz

T101

AM RF

ADJUSTMENT

Signal

Generator.........ecccseeee

Connects

the

ANT.

Coil

through

the

loop

antenna.

Adjust

for

the

indication

VTVM

the

wave

form

scope

maximum.

BAND

Step

Frequency

Adjust

for

Adjustment

610KHz

Maximum

sensitivity

T101,

T104

1510KHz

Maximum

sensitivity

C127

Repeat

steps

and

several

times.

EVM

OSCILLOSCOPE

tented

OUTPUT

terminal

3.FM-RF

ADJUSTMENT

Signal

Generator...

cesses

Connect

ANT

JACK

(FM

IN)

through

the

dummy.

EVM

oscitoscoPE

NO.

Frequency

Adjust

for

Adjustmert

90.10MHz

Maximum

Sensitivity

L2,

L5,

Repeat

step

several

times.

OUTPUT

terminal

4.FM

MONO

DISTORTION

ADJUSTMENT

VOLT

METER

Signal

Generator

Distortion

Meter

Connect

TP1(-),

TP2(+)

Through

the

choke

coll

(100¢H)

Connect

ANT

Jack

(FM

IN)

through

the

dummy.

Connect

the

output.

NO.

Frequency

Adjustment

100.10MHz

Voltmeter

T103

100.10MHz

Minimum

T.H.D

T103

pstorTion

Repeat

steps

and

Several

times.

era

aaa

ANALYSER

5.FM/AM

AUTO

STOP

LEVEL

ADJUSTMENT

SIGNAL

GENERATOR

............::eeseeees

Connect

ANT

Jack

(FM

IN)

through

the

dummy

SIGNAL

GENERATOR...........:scccesseeeees

Connect

ANT,

Coil

through

the

Loop

antenna

BAND

STEP

SIGNAL

GENERATOR

Adjust

for

Adjustment

100.1MHz

30dB

TUNED

Display

OFF

VR11

100.1MHz

30dB

TUNED

Display

VR11

1000KHz

80dB

TUNED

Display

OFF

VR12

1000KHz

80dB

TUNED

Display

VRi2

SERVICE

MANUAL

WIRING

DIAGRAM

Hel

eel

Greed

Ee,

zie

SPEAKER

TERMINAL

IN/OUT

TERMINAL

ANT

TERMINAL

CNI@

CNI6

(AC

IN)

CUPI112@6

POWER

TRANSFORMER

CUPI1194

BN@9

CUP!

12@6

ENCODER

VOLUME

CUP

ILE

Too

BN95

CUP1I1195-2

.CN93

HEADPHONE

CUPL

Goes

BLOCK

DIAGRAM

beh

Ch.

tal

‘y

eles

1C12

(TUNER)

LC7213IM(PLL

SYNTHESIZER)

rte

_———

gna

Jer,

eee

{oe

oem

oe ee

Gana)

Ties

tie2z

Ted

”

ANT

216)

(aman)

acee(#

jemaen(+

Jue)

eee

alo

Telit

(og

eee('5

oma;

umeun(;

ummmad)

ees

Pe ee

Rae

eed

J|\e

©)

aidvdveiacsbebdocoepeneses

=.=;

Baca

622,

0423

oes

gage

SBI

|.«

‘

OOO)

(=v

)

OO*®

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