Sony TC-260 Bedienungsanleitung

Serial

No.

29,001

and

after

Specifications

Power

Requirement:

Outputs

TC-260

Tape

Speeds:

Frequency

Response:

Signal-to-Noise

Ratio:

Flutter

and

ow:

Bias

Frequency:

Level

Indication:

Inputs

eight:

Dimensions

Trapslstors

SONY

SERVICING

GUIDE

100,

110,

117,

125,

220

240

volts

(Voltage

selector

provided

the

set)

(Convertible,

see

page

watts

Instantaeous

selection

ips

3?.j.

ips

(

9.5cm/s)

30-18,000

ips

±3

50-15,000

ips

30-13,000

ips

Better

than

Less

than

0.19%

l'/z

ips

Less

than

0.25%

ips

pprox.

Two

Meters

(

calibrated

below

saturation

)

Microphone

inputs

(

low

impedance

)

uxiliary

inputs

(

high

impedance

)

Line

outputs

(

low

impedance

)

uxiliary

Record/Playback

Connector

2SC401

(X8),

2SC4O2

(x8),

2SC318

(X2),

2SD28

(x6)

pprox.

lbs.

(15.5

Kg)

*•/«/

’

73/

(541

WX392

DX200

mm)

Pre- mplifier

(Pre

plifier

Circuit

Board)

X1O3

2SC402

REC

Slot

Tioi

l§l

1T22

PL Y

REC

Equalizer

Control

(PP30-4202)

CNJ-i

EH101

(

18-2902

Pre- mp

Circuit

Board

(Right)

EH201

Left)

©B

100

—

240V

Main

mplifier

Tone

Control

Circui

Board

R51

20kQ

SP501

Volume

B SS

X602

2SC402

R602

-1

OkQ

J601

Ron

20kU

SP601

T701

Mam

mplifier

Circuit

Board

CNP]

Power

Supply

Filter

Circuit

Board

TC-26O

Block

Diagram

TREBLE

MEioi

(7\VU

Meter

J102

Rso?

10kQ:

XiOl

2SC402

X502

2SC402

X102

2SC401

X6O3

2SC402

X506.507

2SD28

X101

2SC401

S101-1

REC

‘

I-

[

—

OPL Y

(

R115

10kQ

Playback

Level

Control

X104

2SC318

X5O4.5O5

2SC401

X6O6

.6O7

2SD28

J701

Binaural

Monitor

Stereo/Monaural

Record

Switch

2SC401

R138

lOkfi

Rec

Level

'Control

R122

5kQ

T601

X701

2SD28

D3O1.3O2

5GD

□El

___

P7D2

5GD

(Same

X503

2SC402

X601

2SC402

S6-1-.

EFl

8-2902

R5I3

55kQ

OSC

Circu

Board

---------------

X301

2SD28

Jl°

©LINE

0UT

“

iiij

MICIN[[_

____

RPH

101

37)

Pinch

Roller

( 31jReel

Cap

( ^Cabinei

Foot( )

Control

Knob

.MtZOl)

Meter

(Fig.

)

Rewind

diet

Rewind

Idler

Take

Reel

Table

Deck

Fuse

noIder

Supply

Reel

Table

Motor

Pulley

Counter

Belt

Pulley

Tape

Index

Counter

A32

Take

Idler

Brake

Block

Meter

Function

Selector

Cam

REC

Volume

Control

Head

Deck

MIC

Jack

Pilot

Lamp

Recording

Botton

Pincn

Lever

Capstan

Shatt

(Fig.

—

TC-26O

[Cabinet

Top

View]

[Chassis-

Top

View]

Control

Panel

Volume

Control

Knob(

Rec'P.b

Head

(PP304202N'

Volume

Control

Knob( )

Erase

Head

(EF18-2902H)

ekh

)

Meter

Power

Push

Button

( 36)

Cabinet

—

--------

(gspejd

Selector

( fUReel

Panel

------

'--.Function

"33/Selector

Knob

RF3

Screw

•

Power

ON/OFF

Switch

Motor

IC-624

Power

Transformer

Mini

Jack

Voltage

daptor

CNJi

LINE

Mini

Jack

(Fig.

Connector

(CNP1

‘

PB1

"37

Power

Transformer

(

701

Volume

Control

(Fig.

—

TC-26O

Chassis

Bottom

View

Main

Amplifier-Block

Bottom

View

REC,

Volume

Control

REC.

Volume

Contrl

MP.

Capacitor

1.5/tF

Connector

(

Female

Printed

Circuit

Board

(

Pre

■

mplifier

Printed

Circuit

Board

(OSC

and

Power

Printed

rcuit

Board

Power

Supply

Rec

Connector

Printed

Circuit

Board

Tone

Control

)

Printed

Circuit

Board

Mam

mplifier

njiil

Rotary

Switch

Binaural

Monitor

Jack

---

^PB?)

—

(*^(C)

D28

Rfill)

T°

Control

(Bass

Rj'jj)

Tone

Control

Treble

_____

(

)

(

)

Note

.©RF4X30

Cabinet

Washer

( 30)

Speed

Selector

knob

(As)

Reel

Panel

Handle

Washer

Z7ffiB5X

(Fig.

TC-26O

Removal

Cabinet

Removal

Reel

Panel

(3)

(1)

(2)

(3)

Screw

(jTjjvolume

Control

knob

Turn

side

down

the

recorder

soft

pad.

Remove

the

five

Screws

(®RF4x30

marked

Fig.

5.).

five

Cabinet

Washers,

two

Screws

(®B5x50

marked

Fig.

5.)

and

two

Handle

Washers

shown

Fig.

Lift

the

Cabinet

gently.

Disconnect

the

Connector

(Male)

the

Main

mplifier

side

from

the

Connector

(Female)

side.

--------

Connector

(Female)

Connector(

Male)

one

Screw

(@T

3x6

marked

▼

Fig.

the

Pre- mplifier

( ?9)

Head

Cover

< )

(£0)Hedd

Cover(B)

Pinch

Rolleriol

( 33)

Function

Selectorknob

Remove

the

two

Head

Covers.

Remove

the

Function

Selector

Knob,

Speed

Selector

Knob

and

Pinch

Roller

loosening

the

respective

Set

Screws.

Remove

the

three

Screws

|©B3x6

marked

Fig.

6.),

three

Washers

30,

6.)

and

one

Washer

shown

Fig.

Open

the

Cover

for

Recording

Box

and

pull

out

two

Volume

Control

Knobs.

Note:

the

Volume

Control

Knobs

are

too

tight

remove,

try

lift

Reel

Panel

slightly

and

the

Volume

Control

Knobs

will

come

for

easy

removal.

Now

Reel

Panel

can

removed

and

main

mechanism

can

checked.

When

re-assemblying

the

Reel

Panel,

the

Volume

Control

Shafts

must

located

just

the

center

the

respective

holes.

Screw

©RF3

€■

'Washer

(Fig.

When

necessary

remove

the

Circuit

Boards,

proceed

shown

Fig.

four

3(4

Spring

Washers

and

four

3(4

Washers.

(

—

TC-26O

Removal

Ornamental

Panel

for

mplifier

Removal

Circuit

Board

(

)

(

)

(4)

(

)

Printed

Circuit

Boards

can

checked

without

dis-assembled,

follows.

(

)

(

)

(

)

(

)

(

)

\©

Spring

Washer

‘

A3)

Volume

COnTrol

Knob

Circuit

Board

for

Tone

Control

Section

Remove

the

three

Holding

Nuts

for

Potentiometer

Transistorized

Circuit

and

remove

the

Circuit

Board

for

Tone

Control,

taking

care

not

cut

the

connected

Leads.

Ornamental

Washer

(44)

Nylon

<ft>

■

4x2

Washer

—

etj

’

Circuit

Board

for

Pre-Amqlifier

Section

Remove

the

four

Screws

<5?RF3x8

(marked

with

Remove

the

two

Helical

Springs,

which

pull

slide

switch

(Rec./p.b.)

Knobs

from

the

Switching

Plate.

Raise

the

Circuit

Board

gently,

taking

care

not

cut

the

attached

leads.

Remove

the

Volume

Control

Knob

for

right

channel,

the

Volume

Control

Knob

for

left

channel

and

the

other

Control

Knobs

(Bass,

Treble,

Speaker

ON/OFF)

shown

Fig.

Remove

four

Screws

(@RF4x25

marked

with

Fig.

7),

four

Ornamental

Washers

and

four

Nylon

Washers.

Lift

the

Main

mplifier

Block

gently.

Disconnect

the

Connector

(Male)

the

Main

mplifier

side

from

Connector

(Female)

the

Pre- mplifier

side.

Disconnect

the

P.V.C.

Wires

from

the

Main

mplifier

side

the

Speaker

Jack.

(§)contn>l

Knob

’

Circuit

Board

for

Power

Supply

and

OSC

Section

Take

out

two

Holding

Screws

©RK3x6

marked

Fig.

Slide

the

Printed

Circuit

Board

for

Power

Supply

and

OSC

section

rightwards

and

remove

from

the

left

Bracket

shown

Fig.

(1)

set

Screws

for

Electrolytic

(

)

Fig.

12),

one

spring

’

Washer

3(5

and

one

Washer

3(5,

taking

care

)



(tj

:r.



(Fig.

10)

Printed

Circuit

Printed

Circuit

Board

for

Pre-Amplifier

Part

No.

Serial

No.

Remarks

1-538-215-14

Sets

29,000

transistors

are

changed

from

Germanium

Silicon.

1-538-433-11

29,001

and

after

37,501

and

after

Pattern

Circuit

board

changed.

1-538-433-12

1-538-433-14

check

Transistor

for

Bias

Oscillator

Serial

No.

Bias

OSC

Trans.

Part

No.

Transistor

Name

’

Sets

29,000

1-433-046-

2SB383

29,001

and

after

2SD128

1-433-081-

39,501

and

after

2SD72

59,401

and

after

1-433-106-

2SD28-3

—

TC-26O

Pnnted

Circini

Beard

for

Poner

Suopb

Filter

Printed

Circuit

Board

for

Mam

Channel

Printed

Circuit

Board

lor

Channel

Circuit

Board

for

Power

Supply

Filter

Section

Renmove

the

Printed

Circuit

Board

for

Power

Supply

Filter

loosening

the

respective

Capacitor

Mounting.

Remove

the

one

Screw

((+)RF3x8

marked

not

cut

the

connected

Leads.

Lift

Printed

Circuit

Board

for

Power

Supply

Filter

Section.

Soldering

positions

lJ0

(no)

are

changed.

Lead

(No.

29)

for

soldering

(68

soldered

Spring

Washer

Wasner

Circuit

Board

for

Main

Amplifier

Section

(

)

Remove

the

two

Holding

Screws

(ffiRF

3X6

marked



Fig.

two

Holding

Screws

(®B3x6

marked



Fig.

)

and

remove

the

Circuit

Boards

for

Main

mplifier

Channel

and

Channel

taking

care

not

cut

the

connected

Leads.

For

Connected

Connection

between

terminals

Disconnected

(2uF)

(

l.5uF)

the

Metalized

Paper

Capacitor(MP.)

Pinch

Roller

Capstan

Green

(Fig

11)

the

Board

with

three

Wood

Screws,

|®B3x6|

and

i$e

Plate

i-cr,

140mm

(Fig.

12)

—

TC-26O

Modifica11on

Different

Power

Line

Frequency

Install

the

Unit

Other

Equipment

(

)

(

)

(

)

0-027-470-01

(Red)

0-027

483-05

(

Red

)

0-027-483-06

(White)

0-027-477-01

(White)

Set

Screw

When

desired

install

unit

other

equipment,

proceed

follows

;

Remove

the

Reel

Panel

refering

Fig.

Remove

the

Cabinet

refering

Fig.

Install

the

unit

the

opening

(340x260mm,

13.4*

10.2*)

Rack

Mounting

Brackets

shown

Fig.

12.

Bracket

tor

Rack

Mount,

—

■

260rntn

The

alignment

performed

Connect

100

load

Head

Core

and

Rec./P.B.

Head

Core

and

upper

edge

the

tape

turning

the

)

djusting

Sere*

▲

05mm

(Fig.

14)

(Fig.

13)

—

----

Bias

Current

RPH

IkQ

■

(Fig.

15)

—

TC-26O

djustment

Procedure

(

)

(

)

(

)

(

)

(

)

(

)

(

)

(

)

-Cold

Side

(in

REC

mode)

-RIGHT

LEFT

Tape

Guide

adtusted)

djusting

Screw

■

...

@REG

Head

....LI.

----

Azimuth

Alignment

Playback

signal

recorded

the

first

section

the

SONY

alignment

tape

"N-19-F1".

Turn

the

azimuth

alignment

screw

located

the

right

side

playback

Head

obtain

the

maximum

recording

the

VTVM.

Note

zimutn

lignment

Screw

6x6

-1

■Q+

□KM

(TJJ

Head

djusting

Plat*

The

Rec./P.B.

Head

Mounting

Plate

must

always

kept

1.6

high

from

the

Head

Deck

shown

Fig.

which

set

the

factory.

the

correct

positioning

very

difficult

without

jig,

take

care

not-to

turn

the

adjustment

screws,

marked

with

shown

Fig.

even

replacing

the

Rec./P.B.

Head.

Tape

Guide

(tH)E,

3se

Head

@REC

Head

(To

aaiuste-d)

(Not

0,05mm

Black-

(v?v) pprox.

1.2V

tape

speed

7-1/2

ips

unless

otherwise

specified.

resistor

parallel

with

the

VTVM

terminals

and

connect

the

VTVM

LINE

OUT

Jack.

Recording

Bias

Adjustment

Unsolder

the

ground

lead

(s)

(Violet

for

Right

and

Black

for

Left)

the

terminal

Rec./P.B.

Head.

Insert

VTVM

and

resistor

parallel

between

the

Rec./P.B.

Head

and

the

unsoldered

lead

(See

Fig.

15).

Place

the

recorder

record

mode.

djust

Trimmer

Capacitor

(s)

(Right

...

Left

...

shown

page

obtain

1.2V

reading

the

VTVM.

Elevation

Alignment

The

exact

vertical

positionings

the

Head

are

adjusted

the

factory

and

should

never

need

readjustment.

However,

when

replacing

Head

Tape

Guide,

height

the

replaced

part

relation

the

tape

checked

follows;

Head

Deck

Thread

tape.

lign

the

upper

edges

the

Tape

Guide

located

the

left

side

the

Erase

Head.

Turn

the

Tape

Guide

clockwise

approximately

30°

from

the

position

obtained

the

preceding

process,

that

the

upper

edge

the

tape

approximately

0.05

lower

than

that

the

Erase

Head

Core.

'or

(Fig.

)

dBs(OdBs=O.

775V)

IdBs

-10

-20

-25dBs

-30

X502 X503

X504.505

X5O6.5O7

2.2K

-10-

TC-26O

Main

mplifier

Level

Diagram

(1)

5dBs

(5)

dBs

-21dBs

Equalizer

Adjustment

(

)

Playback

the

3rd

section

(700

-22

dBs)

and

the

4th

section

(10

dBs)

the

lignment

Tape

N-19

’

and

the

potentiometer

(R„.)

shown

Fig.

obtain

the

same

readings

the

VTVM

for

both

the

3rd

and

the

4th

sections

the

alignment

Tape.

Meter

Calibration

Playback

second

section

the

alignment

Tape

"N-19-F1

”

(700

c/s,

-12

dBs).

djust

the

potentiometer

(R;u)

shown

Fig.

that

the

VTVM

indicates

dBs

(0.775

V).

djust

the

potentiometer

:31

)

shown

Fig.

that

the

Level

Meters

reads

(100%).

(21dB)-

‘

Bias

Trap

Adjustment

(

)

Place

the

recorder

record

mode

without

Tape.

(

)

djust

the

Trap

Coil

103

;03

)

shown

page

for

minimum

reading

the

VTVM.

(35dB)

_________

_<D

—

IdB

<2)

----------

dBs

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