Onkyo Ta-2130 User manual

ONKYO

SERVICE

MANUAL

TA-2130

OM3263

STEREO

CASSETTE

TAPE

DECK

MODEL

TA-2130

Black

models

SAFETY-RELATED

COMPONENT

WARNING!!

COMPONENTS

IDENTIFIED

BY

MARK

“4

ON

THE

SCHEMATIC

DIAGRAM

AND

IN

THE

PARTS

LIST

ARE

CRITICAL

FOR

RISK

OF

FIRE

AND

ELECTRIC

SHOCK.

REPLACE

THESE

COM-

PONENTS

WITH

ONKYO

PARTS

WHOSE

PARTS

NUMBERS

APPEAR

AS

SHOWN

IN

THIS

MANUAL.

MAKE

LEAKAGE-CURRENT

OR

RESISTANCE

MEASUREMENTS

TO

DETERMINE-

THAT

EXPOSED

PARTS

ARE

ACCEPTABLY

IN-—

SULATED

FROM

THE

SUPPLY

CIRCUIT

BEFORE

RETURNING

THE

APPLIANCE

TO

THE

CUSTOMER.

ONKYO.

AUDIO

COMPONENTS

SPECIFICATIONS

Track

System:

4-tracks,

2-channels

Erasing

System:

AC

erase

Tape

Speed:

4.8

cm/sec

(1-7/8

i.p.s.)

Wow

and

Flutter:

0.06%

(WRMS)

Frequency Response:

20—15,000Hz

(Normal)

(30—14,000Hz

+3dB)

20—16,000Hz

(High)

(30—15,000Hz

+3dB)

20—17,000Hz

(Metal)

(30—16,000Hz

+3dB)

Dolby

NR

off:

58dB

(metal

position

tape)

A

noise

reduction

of

10dB

above

5kHz

and

5dB

at

1kHz

is

possibile

with

Dolby

B

NR.

A

noise

reduction

of

20dB

at

5kKHz

is

possible

with

Dolby

C

NR.

Microphone

jacks:

2

Input

sensitivity:

0.6mV/600

ohms

Input

impedance:

2.7

kohms

Line

IN:

2

Input

sensitivity:

6OmV

Input

impedance:

50

kohms

Headphone

jack:

1

Optimum

load

impedance:

8

to

200

ohms

Line

OUT:

2

Standard

output

level:

500mvV

(0dB)

Optimum

load

impedance:

over

50

kohms

DC

servo

motor

x

1;

DC

motor

x

1

REC/PB:

Special

Hard

Permalloy

x

1;

Erase

head:

Ferrite

x

1

S/N

Ratio:

Input

Jacks:

Outputs:

Motors:

Heads:

—~{—

TA-2130

Power

Supply

Rating:

AC

120V,

60Hz

Power

Consumption:

18

watts

Dimensions:

495(W)

x

112(H)

x

262(D)mm

(17-1/8"

x

4-3/8"

x

10-3/8")

Weight:

4.1

kg.

(9.1

Ibs.)

Specifications

and

external

appearance

are

subject

to

change

without

notice

because

of

product

improvements.

SERVICE

PROCEDURES

1.

Replacing

the

lamp

This

unit

used

the

lamp

listed

below.

Parts

No.

210090

Circuit

No.

PL9OI

Description

PLI4V

150mA

Caution:

Before

replacing

the

lamp.

Be

sure

to

unplug

the

power

supply

cable.

2.

Instruction

resistance

measurement

Connect

the

insulating-resistance

tester

between

the

plug

of

power

supply

cord

and

chassis.

Specifications;

500V

more

than

1OMQ2

3.

Replacement

of

power

supply

cord

There

are

two

power

supply

cord

outlets

on

the

strainrelief.

Insert

them

in

prescribed

direction

to

ensure

safety.

AS-UC-

3

(UD<120V>

model)

should

be

inserted

lengthwise

and

other

types

of

cords

should

be

inserted

horizontally.

Power

Supply

Cord

Power

Supply

Cord

Horizontal

direction

length

wise

direction

4.

Replacing

the

Hall

ICs

Cautions:

As

the

position

of

leg

of

DN6838

and

DN838K

differ,

use

the

same

Hall

IC

when

replacing.

(DN6838

(222558)

t

5mm

{

Holder

§N2719014

73

DN838

K

(222470)

Cut

Printed

side

{

SN27190251

~m

5.

Method

for

removing

BOTTOM

BOARD

(refer

to

exploded

view

of

chassis)

1.

Remove

top

cover.

2.

Remove

front

panel.

3.

Remove

the

2

mounting

screws

of

the

main

PC

board

(NAAF-2947-

1

).

4.

Remove

the

2

holders

from

the

PC

board.

5S.

Remove

the

1

fastening

screw

of

the

Power

Switch

PC

board

(NAPS-2951-1).

6.

Remove

the

holder

from

the

PC

board.

7.

Remove

the

4

fastening

screws

of

the

back

panel

and

bottom

board.

8.

Remove

the

3

fastening

screws

of

the

front

bracket

and

bottom

board.

9.

Remove

the

ground

terminal.

10.

Remove

the

bottom

board

by

taking

from

the

lower

direction.

6.

Mechanism

operation

This

mechanism

consists

of

a

capstan

motor,

reel

motor,

and

solenoid,

with

the

power

assist

method

by

means

of

the

capstan

motor.

In

the

operation,

there

are

3

conditions:

STOP,

PLAY,

and

CUE/REV.

When

the

position

is

trig-

gered

by

the

solenoid,

by

means

of

intermittent

rotation

of

the

gear

from

the

flywheel,

as

shown

in

Fig.

1,

cyclic

shift-

ing

is

done.

To

go

from

STOP

to

PLAY,

if

the

solenoid

is

pulied

in

for

30ms,

after

about

150ms

there

is

a

shift

to

the

PLAY

condition.

From

this

condition,

if

the

solenoid

is

again

pulled

in,

in

that

interval

the

condition

shifts

to

CUE/

REV.

However,

to

suppress

heat

generation

in

the

solenoid,

the

supply

voltage

must

be

reduced.

If

the

power

to

the

solenoid

is

cut

off,

the

head

lowers,

and

the

conuition

goes

to

STOP.

In

order

to

have

a

cyclic

operation

as

stated

above,

and

to

know

the

existing

condition,

a

play

switch

is

provided,

and

this

switch

is

ON

for

PLAY

and

OFF

for

STOP

(CUE/REV)

is

indefinite.

When

power

is

turned

ON,

the

mechanism

makes

use

of

an

initializer.

PLAY

CUE/REV

Fig.

1

STOP

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TA-2130

ADJUSTMENT

PROCEDURES

PRECAUTIONS

1.

Before

adjustment,

clean

the

following

parts

with

an

alchol

moinstend

swab,

*

record/playback

head

*

pinch

roller

*

erase

head

*

capstan

2.

Do

not

use

magnetized

screwdriver

for

adjustments.

3.

Demagnetize

record/playback

head

with

a

head

de-

magnetizer.

TEST

EQUIPMENT/TOOLS

REQUIRED:

Audio

oscillator

Digital

frequency

counter

Connection

of

Lo

Item

.

Line

input

instrument

Test

tape

AC

voltmeter

and

oscillo-

scope

to

LINE

output

terminal

VTT-658

AC

voltmeter

to

terminals

TP-1

and

TP-2

MTT-150

)

Head

azimuth

Playback

3

level

Frequency

counter

to

P401.

E

head

read

(loose

coupling)

METAL

TAPE|

REC

AC

voltmeter

to

LINE

output

terminal

1kHz,

—20dB

and

12kHz,

—20dB

Bias

NEW

XL-1190

current

REC

Frequency

counter

to

TP-5

10:

1

cabie

Clock

—_

~

a)

N

VTVM

Attenuator

LINE

IN

fig-

1

REC/PB

PAUSE

REC/PB

Oscilloscope

Attenuator

AC

voltmeter

Non-magnetic

screw

driver

Blank

tapes

(completely

erased)

NORMAL

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

NEW

UD90

HIGH...

0...

eee

NEW

XL-II90

METAL

..............0044.

NEW

MX60

Test

tapes

VTT-658

10

KHz,

—15dB

MTT-111

3

kHz,

—10dB

MTT-150

Dolby

level

calibration

400Hz,

tone

200nWb/m

indicator

point

Frequency

Tape

counter

to

MTT-111

Frequency

|

Semi-fixed

3,010

to

speed

LINE

output

counter

onthe

motor

|

3,020Hz

terminal

Maximum

and

same

phase

at

channels

Head

azimuth

SCrew

AC

voltmeter

AC

voltmeter

Frequency

counter

AC

voltmeter

AC

voltmeter

R-115(Ch.L)

R-116(Ch.R)

L-405

85kHz

R-471(Ch.L)

R-472(Ch.

R)

Same

level

at

REC/PB

Input

VR

maximum

Attenutor

of

AF

OSC

output

Input

VR

AC

R-401(Ch.L)

|

Same

level

maximum

voltmeter

R-402(Ch.R)

|at

REC/PB

Frequency

counter

160

to

PACKING

VIEW

TA-2130

TP-1

TP-2

O

oO

R116

L407

P.B

LEVEL(R)

Riis

L408

P.B

LEVEL

(L)

TP-3

TP-4

R472

(R)

L40s

R401

R402

REC

LEVEL

BIAS

AOJ

(0)

TP-5

R47HL)

L]

R722

CLOCK

NAAF

-2947

D

MODEL

REF

NO.

PART

NO.

DESCRIPTION

7

1

29051517

Master

carton

box

.

2

29090987

Pad(L)

aS

3

29090988

Pad(R)

}

4

29100037A

650

x

500

Poly

bag

5

282301

Sealing

hook

6

260012

Damplon

tape

7

Accessary

bag

ass’y

29341145

Instruction

manual

2010095

Connection

cable

29365019

Waranty

card

(N)

29358002E

Service

station

list

(N)

29100006A

350

x

250

Poly

bag

G/W

MODEL

REF

NO.

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NO.

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carton

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3

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bag

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6

260012

Damplon

tape

7

Accessary

bag

ass’y

29341146

Instruction

manual

29341163

Instruction

manual

(1)

NOTE

2010095

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cable

(N)

:

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U.S.A.

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CHASSIS-EXPLODED

VIEW

TA-2130

MICROCOMPUTER

(LM6405L-1994)

In

the

microcomputer,

the

operating

voltage

is

high

with

the

NMOS

type

LM6405L

using

Vpp

=

6V.

The

clock

uses

a

condenser/resistor

oscillator

and

is

designed

for

a

frequency

of

170KHz,

(Frequency

measurement

can

be

made

by

connec-

tion

through

a

LOOKQ

~

330KQ2

to

No.

1.)

Port

.

XTAL

Connected

to

resistor

of

oscillator

for

clock

use

BIAS

OUT

Output

port

for

turning

bias

oscillator

ON/OFF:

Oscillation

with

0

level

LINE

MUTE

REC.

MUTE

Output

port

for

line

muting:

Muting

with

0

level

Output

port

for

recording

muting:

Muting

with

0

level

CASSETTE

IN

Input

for

cassette

loading

detection:

Cassette

loading

with

0

level

ROTATION

SENSOR

jj

Pulse

input

rotation

detection

System

reset

for

microcomputer

use

Input

for

automatic

detection

of

chrome

tape:

Chrome

use

hole

detection

with

1

level

METAL

Input

for

automatic

detection

of

metal

tape:

Metal

use

hole

detection

with

|

level

10

PLAY

SWITCH

Input

for

PLAY

position

detection:

PLAY

position

with

0

level

J

REC.

INH

Lug

detection

input

for

recording

prevention:

Disable

with

1

level

12

REEL

FF

Output

for

reel

motor

rotation

in

fast

forward

direction:

Rotation

with

1

level

<form

Reel

motor

rotation

selection:

Slow

with

1

Fast

with

0

Ps

RvB

nmin

ties

PAUSE

LED

output

for

PAUSE

indication:

Lights

with

0

ci

feet

ps

[secre

nT

LED

output

for

REC

indication:

Lights

with

0

Output

for

solenoid

pull

in:

Pull

in

with

0

Output

for

solenoid

pull

in

hold

(ow

power):

Pull

in

hold

with

0

Input

for

microcomputer

chip

inspection

(Normally

connected

to

Vgs)

Ground

terminal

70

ps/120

us

For

input

to

pins

8,

9,

output

for

play

back

equalizer

selection

a

NORMAL

For

input

to

pins

8,

9,

output

for

record

equalizer

selection

(NORMAL)

=

HIGH

For

input

to

pins

8,

9,

output

for

record

equalizer

selection

(HIGH)

METAL

For

input

to

pins

8,

9,

output

for

record

equalizer

selection

(METAL)

26

SINGLE

SIG,

Input

for

recording

signal

detection

for

single

repeat

when

in

low

speed

27

AMCS

SIG,

Input

for

recording

signal

detection

for

AMCS

use

when

in

high

speed

REPEAT

OFF/ON

Input

for

repeat

operation

ON/OFF:

Operates

with

0

——

SINGLE/FULL

Selection

of

SINGLE/FULL

operation:

Full

repeat

with

0

TA-2130

|

P

OFF

Input

for

power

off

detection:

Off

with

0

TIMER

REC

Input

for

timer

recording

ON/OFF:

Operates

with

0

TIMER

PLAY

Input

for

timer

play

back

ON/OFF:

Operates

with

0

AMCS

Key

input

to

cause

AMCS

operation:

Operation

with

0

Key

input

to

cause

rewinding:

Operation

with

0

Key

input

to

cause

fast

forward

operation:

Operation

with

0

STOP

Key

input

to

cause

stop

operation:

Operation

with

0

AUTO

SPACE

Key

input

to

cause

auto

space

operation:

Operation

with

0

PAUSE

Key

input

to

cause

pause

or

recording

pause:

Operation

with

0

REC

Key

input

pushed

together

with

PLAY

key

to

cause

recording:

Operation

with

0

PLAY

Key

input

for

play

back

or

recording:

Operation

with

0

Power

source

terminal

Connects

to

resistor

and

condenser

of

oscillator

for

clock

NOTE

0:

Low

level

1:

High

level

+VODD

BIAS

OUT

LINE

MUTE

PLAY

REC

MUTE

REC

O—{CASSET

IN)

PAUSE

ROTATION

SENSER

AUTO

SPACE

SW

KEY

INPUT

RESET

STOP

O—{

CrOQ2

)

FF

O—+{

METAL

REW

O—{

PLAY

SW)

AMCS

O—{

REC

INH)

TIMER

PLAY

FWO

TIMER

REC

rect

Ley

POWER

OFF

(L:

POWER

OFF)

(PLAY

:H)

O-PLAY

SINGLE

/

FULL

(SINGLE—H

Levet

)

PLAY

LED

)

REPEAT

ON/OFF

(

REPEAT

OFF-H

Level)

AMCS

SIGNAL

SINGLE

REPEAT

SIGNAL

/m»

§

PAUSE

LED

<a

ym»

i

REC

LED

PT

SOL

(POWER

UP)

METAL

SOL

(Cueing)

HIGH

NORMAL

_

70

/120pS

TA-2130

IC

BLOCK

DIAGRAM

NJM-2068D-D

S)

INPUTS

®

UTPUT

(

TOP

VIEW

)

CX20187

(DOLBY

N.R)

BIC

1

42|REC/

PB

ON/OFF

[2

|

IREF

LINE

IN

[3

|

LINE

IN

Vcc

4

139]

Vee

PB

IN

|

5

|

138)

PB

IN

MPX

OUT

[

6

|

MPX

OUT

REC

IN

136]

REC

IN

GND

|

8

|

'35]

GNO

LINE

OUT[

9

|

LINE

OUT

SSK

10

|

133]

SSK

VF

IN

[11

32)

VF

IN

HPF

H

[12]

31)

HPF

H

TCH2

13

|

30}

TCH2

TCH}

29]

TCH1

WT

H

L145

WT

H

TCL2

16

|

TCL2

TCU

26]

TCL

WIL

18)

WT

L

HPF

Lt

[19]

HPF

L

ANT

S

/23|]

ANT

S

REC

OUT

|

21)

122]

REC

OUT

—~10—

Onkyo TA-2130 User manual

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