Sony tc-k555es Service Manual

~T

~~~#

R

I'?s--

k7

77

Recording
Fast-forward

Bias
Signal-to-noise

system

frequency

and

ratio

4-track

rewind

time
Approx.
105

kHz

(NAB,atpeak

2-channel

C h

TYPE IV (Sony METALLIC) 60
TYPE III (Sony FeCr) 62
TYPEII(Sony UCX)
TYPE I (Sony BH

Total

harmonic

Frequency

F)

distortion

response

0.8 %

(with
cassettes)
DOLBYNROFF

•

With

TYPE IV
20 - 19,000 Hz
25 - 18,000 Hz (±3 dB)
25 - 14,000 Hz (±3 dB,
25 - 19,000 Hz (DIN)
With

TYPE"Icassette

•
20 - 19,000 Hz
25 - 18,000 Hz
25 - 19,000 Hz (DIN)
With

TYPE"

•
20 - 18,000 Hz
25 - 17,000 Hz
25 - 17,000 Hz (DIN)

•

With

TYPE I
20 - 18,000 Hz
25 - 17,000 Hz (DIN)

stereo

90 sec.

(with

level)

OFF B-TYPE ON

dB
dB

59

dB

56

dB

Sony

METALLIC

cassette

(±3

dB)

cassette

(±3

dB)

cassette

C-60

cassette)

67

dB

69

dB

66

dB

63

dB

(Sony

°

VU

(Sony FeCr)

(Sony UCX)

(Sony BH

SPECIFICATIONS

C-TYPE ON

73

dB

75

dB

72

dB

69

dB

and

FeCr

METALLIC)

recording)

F)

Wow

andflutter

Tape
Mechanism

0.04 %

± 0.12 %

Transport

Type

WRMS

(D

IN)

(NAB)

-

Continued

E

on page 2 -

TCM-110C3

•••••

•••••

•••

MICROFILM

SERVICE

MANUAL

-

------

r

TC-K555ES

--

Inputs

Outputs

General
Power

requirements

Line

inputs

(phono
Sensitivity
Input

impedance50k

Line

outputs

Output

level 0.435 V
impedanceof50 k
Load

impedance

Headphone

Output

level,

-50

dBata

AEP

model:

(240V

ac adjustablebyauthorized
Sony

personnel)

UK

model:

(220

V ac adjustablebyauthorized

Sony

personnel)
US, Canadian
E

model:

justable,

77.5mV(-20

(phono

over 10 k

output

variable

load

impedanceof8

220

V ac,

240V

model:

110,

120,220or240

50/60

Hz

jacks)

ac,

dB)

ohms

jacks)

(-5

dB)ata load

ohms

from

50/60

50/60

120

ohms

-20dBto
ohms

Hz

Hz

V ac,60Hz

V ac ad-

Power

consumption

Dimensions

Weight

Peak

program
Response range
Frequency
Response
Decay

Overshoot

response20- 20,000

time

time

(from0dBto-20

26

watts

Approx. 430 x 105 x 285

inclUding
Approx.

meters

-40dBto

1

millisecond

750

milliseconds

none

I

OdB=O.775V

(17

x 4'/. x 11'/. inches)

projecting

6.1kg(13

Ibs

parts

80z)

+8 dB

Hz

zl.5

dB

dB)

I

mm

(w/h/d)

and

controls

FEATURES

Three-head
Separate record and
and
tended
heads
justed
enables

Newly-developed LA
The
magnetic
by laser. This new
range and a
high-frequency
of

the

Closed-loop
Two
sion
and

Dolby
In

additiontothe
cassette
system
system. The C-type
networktoimprove
10

kHz.

Digital
This
the tape so
tional
display
mains.

system

impedance

are
for precise

record/playback

potentialofthe

pairsofcapstans

and

modulation

C-type NR (noise

counter

displays

ratings

frequency

mounted

youtomonitor

alloy

developed by Sony, and

more

range. The head is designedtotake

dual-capstan

stable

tape-to-head

noise

deck

employs

which reduces

linear

counter
indicates

that

the

can

can

indicate

playback

response. For

in one

azimuth

(LaserAmorphous)

highly-durable

extended

are

conventional

tape

system

the

tape

only

withaminus

heads

for

distortion-free

good

block

and each head is

alignment.

the

recorded

head is

metal

and

the

madeofa

head provides a

frequency

tapes.

tape

drive

pinch

rollers

contact.

greatly

reduced.

reduction)

the

high-frequency

can be precisely indexed.

indicate

B-type Dolby NR system,

newly-developed C-type

noise

twiceaseffectively

also

incorporatesananti-saturation

recordingorplayback

the elapsed

sign

allow

recording

tape·to-head

The three-head

tape

while

head

its

cores

response,

system

ensure

As a result,

system

dynamic

how

much

optimum

and

separately

actually

special

are

solidly

wider

especially

full

uniform

wow

range by 4dBat

time

While

recording

recording

gap

settings

greatly

contact

system

as the B-type

ex-

the

ad-

also

recording.

amorphous

welded

dynamic

in the

advantage

tape

ten-

and

flutter

this

Dolby

NR

elapsed on

conven-

time,

this

time

re-

Bright

FL-display peak
The peak
and
indication

Remote
Using
operations-recording,
can be
When the RM-65
this
control
will be synchronized.

Two
The
transport.
and
smooth

Useful
.Record
long
.Auto
ning
locate
.A
of

maintain

the

remotely

cassette

jack, the

motors
two-motor

slot

functions

blank

play

of

any desired

timer

times

program

the peak

makes

control

optional

deck

The

less)

motortokeep

torque.

muting

space

permits

the

tape

switch

at preset

it easytoset

operation

controlled.

synchro

withaturntable

operationofthe

drive

capstan

function

between

and

is providedtoturn the

times

program

meters

follow

readings

critical

RM-50orRM-80

playback,

remote

system

assures

is driven by a linear

wow

allows

selections.

one

step

rewind and

the

memory

point

on the tape.

set on an

meters

the

transient

for

about

recording

remote

record

muting

control

equipped

cassette

accurate

and

flutter

youtoeasily

playback

function

deck

optional

peaksofthe

4 seconds.

levels precisely.

control

unit,

operation,

unit

is usedtoconnect

withasynchro

deck

and the

and

torque

BSL (brush/ess

low

andtoprovide

insert a

from

allows

youtoeasily

on and

off

timer.

music

This

double

various

etc.-

remote

turntable

stable

tape

moderately

the begin-

any

number

-2-

TC-K555ES

SAFETY

After
perform
the

settothe

Check

the

knobs,

AC leakage.

LEAKAGE

The

earth

ground

exposed

not

exceed

current

CHECK-OUT

correcting

the

following safety

customer:

antenna

screws,

Check

TEST

AC leakage from

and

metal

0.5 rnA

can be measured by

the

terminals,

and

all

other

leakage as described below.

from all exposed metal

part

having a

(500

methods.

I.

A

commercial

leakage tester,
Simpson 229orRCA WT-540A.
manufacturers'

instructionstouse

ments.

battery-operated

2. A
Precision 245 digital

job.

this

(US Model)

original service

check

metal

trim,

exposed

any

exposed

return

microampers).

anyone

AC milliammeter.

multimeterissuitable for

problem,

before

releasing

"metallized"

metal

parts

metal

partstoany

to chassis,

of

such

Follow

these

The

part

Leakage

as

for

to

must

three

the
the

instru-

Data

3. Measuring the voltage
means

of

a YOMorbattery-operated
meter.
analog

The

meters

"limit"

voltage scale.
SH-63Trd are

examplesofa passive YOM

is suitable. Nearly all

multimeters

that

drop

indicationis0.75V,so

must have an

The

Simpson

battery

have a 2 V

suitable. (See Fig. A)

To
Parts

Exposed

on

Set

Metal

1.5kH

..L Earth

Fig. A. Using anACvoltmeter

across

a resistor by

AC

volt-

accurate

250

low-

and Sanwa

that

operated

AC

Ground

to checkACleakage.

digital

range are

AC

voltmeter

(0.75

V)

MODEL

-

Specification

IDENTIFICATION

SON~

TAPECORDER

SERIAL
MADEINJAPAN

NO.

US,

Canadian model: AC 120 V 60Hz26 W

Label

-

MODEL

NO. TC-K555ES

SON~

TAPECORDER

SERIAL
MADEINJAPAN

AEP model: AC 220 V ~ 50/60Hz26 W

UK

NO.

model: AC 240 V~50/60Hz26 W

E model: AC 110, 120, 220, 240 V

MODEL

NO.

TC-K555ES

~

50/60Hz26 W

-3-

f~-K555ES

I,L

CautiononDOLBY

This set uses eight Dolby ICs

102,201,202,301,302,401,402)

These

ICs

When replacing these ICs, be sure

the

ICs as

original

IC (CX174) Replacement

are

either

CX 174-1orCX-174-3.

one.

SONY

174 -

(CXI74).

to

use

1

:CX174·1

3

:CX174-3

(lCIOI,

the

same

-4-

*

TC-K555ES

TC-KS

SECTION 1

OUTLINE

1-1. BLOCK

-

-

L-CH--

Amp

DIAGRAMS

Section -

PBEOAMP

IC501

5505-1 5506-2

I

DOLBY

NR

11Kl-----.I--+-~--+--___......___<:::I1

OFF

• +

ON

I

DOLBY

B
C

NRI

TYPE

TYPE

CNJ301

I

L1Ni

INI

I

MPX

5507-1

FILTERI

OFF

+

ON

1Jc:}------~

SWITCHIREC

0314

B+

(9.6Vl

EO)

t------1I---------+__---_+----+----

--

•

SAME

R-CH-

AS

L-CH

-5-

5506-1 5505-2

IDOLBY

:

NRI

1J<}---+-"-+-~"""-----1t>f1

j:::

IDOLBY

NR!

OFF

O~

TO

BOARD(Al@_,--t-----+--i>°FF5503-2

MmR

t

.......

t---_-+--~I

_ *

TO

5Y5TEM

CONTROL

BOARD

OFF

5504-2

O*N

TJlT~['

TYPE

Fe-Cr

ill

ON

TC-K555ES I

.I

S508-3

I

MONITOR

I

TAPE

+

SOURCE

...

4-1

~~~~I

R-CH

+

y

HEADPHONE

L~G31~MP

AMP

IC503

~.+

S508-1

IMONITORI

TAPE

,

SOURCE

~AA

r-~'"

6)

R-CH

SWITCHING
Q514,515

PL501

I r

R-CH

~~

PL502

,

CNJ501
IHEADPHONESI

CNJ302

I

L1NELOUT

~...

..

@

}

I

RV302

METER

L

TO

SYSTEM

LEVEL

~@

CONTROL

TO

METER

BOARD

IC801

BOARD(A)

~

I

t~

¥v3T~M

CONTROL

BOARD

S504-2

,

,TYPE

METAL

S503-2

ITYPE

Fe-Cr

N

'"'\

~\

t

8+

--1

B+

TO

SYSTEM

CONTROL

BOARD

ill

RV502~1

IBIAsl

(9.6Vl Q

B-

(-9.6Vl

VOL..REG.

502-504

OFF

ON

H

VOL.REG.

Q50I

~~

~~

METER

ICBOI

TO

SYSTEM

BOARD

CONTROL

(A)

BOARD

t

B-

(9.6V)

-6-

- System Control Section -

TC-K555ES

TO

RECORD

BOARD

@

0701

•

0702

~

0703

II

~
~

IC601

0638

r----+-+---f-----t--+--+-~-+__t____1--~

580 I

CASSETE

ON

OFF

F

A

SWITCH

HALF

OET

t

5802

ACCIDENTAL

ON

ERASURE

t

PREVENTION

OFF

@I-----t

TO

SYSTEM

CONTROL

BOARD

-PM2~

~'

TO

RECORD

BOARD

.~

~

~

I

FI

I

-7-

i55ES

~

~AMSSOLENOID

~~"\

~

~~MI

~

r\7I

PM2

PMI

HEAD

-----.r

TC-K555ES

5708

IRESETI

SOLENOID

REEL

MOTOR

S709

[MEMORYI

B+ B+

(26VI (22VI

FLUORESCENT

DISPLAY

TUBE

AC

5.2V

r-----"------,

t

1,2

DOLBYCINDICATOR

DOLBYBINDICATOR

) •

0607,609

0608,610

~}

TO

RECORD

e

@

4)

l~~

BOARD

TO

RECORD

BOARD

-------------iIJl

;~G

-.~

,=-

0612,613

IC604 (1/2)

'Xl

• I

~.

0611

LJL-~----________=_~-----

"TO

~~

SERVO

PLI

~

BOARD

' i

SPEED-DET

0905,906

B+

(15V)

~

(~0)

,@

B+

(26V)

B-t

•

(POWER

B+

(6V)

(22VI

RESET)

1

-B+(6V)

I I

B+

'4

SWITCH

I

~~~,

I .

~

1

TO

RECORD

BOARD

4.T~

f

~

~~

,-----o~

AC

IN

B-

(-203VI'

TO

PLAYBACK

BOARD

-8-

1-2. FUNCTION OF CONTROLS

The

numbersinthe

photo

are keyedtothe

following

explanations.

TC-K555ES

TC-K5

OPOWER

Depress
holder,
will
about
operative
Press

this

the

light

4 seconds,

this

•~(eject)

Press

this

TIMER

switch

control

REMOTE

switch

switchtoturnonthe

displayofthe

up. The

indicator

during

switch

indicating

this

period.

againtoturn

button

buttontoopen

connector

peak

program

lampofthe

that

the

cassette

TAPE

•

power. The

the

the

power

select

meter
pause

function

off.

holder.

buttons

Cassette

lampinthe

and

the

button

buttons

and BIAS

holder

tape

will

control

cassette

counter

blink

for

are in-

oPeak

e

program

oDOLBY NR

oMPX FILTER

•

Function

COUNTER MEMORY

GOOLBYNRswitches

The

left

switch
and

with

without

turns

the

the

back, set

off

and

Dolby NR system.
To record
to

theONposition
To record
againtorelease.

playing

When

in recording.

meters

switches

switch

8

MONITOR

buttons

button

the

right

switch

Dolby NR process, depress

and

choose

the

Dolby NR process, press

REC LEVEL

•

Dolby

selects

these

switchestothe

switch

HEADPHONES

NR

* (Noise Reduction)

B-TYPE

and

either

(n

indicator

(recording

level)

level

control

the

B-typeorC-type

the

ON/OFF

) or C-TYPE

the

ON/OFF

same

controls

system

(.D.

position

on

switch

).

switch

used

eTAPE

tapetobe used. When
timum

TYPE III (Fe-Cr) tape,
settings

select

Depress oneofthe

recording, and
playback. When

buttons

equalization

the

recording

for

the

TAPE

11.

.Peak

program meters

With

the
peak
recorded levels. They
that
the
putofeach
when a
case

MONITOR

input

levelofeach channel, andtoTAPE,

are

too

brieftobe

optimum

that

higher

peak is

recording

channel

peak

occurs

immediately

and BIAS

TAPE

the

and

optimum

adjust

select

switch

follow

followedbyconventionalVUmeterssothat

level can be

is held

control

select

buttons

appropriate

bias

current

equalization

using

a TYPE I (NORM), TYPEII(Cr0

the

BIAS

buttons

settoSOURCE,

the

transient

about4secondsonthe

before4seconds

indicated.

accordingtothe

button

is depressed,

settings

settingisobtained

control.

and

accurately

See

the

BIAS

the

peaksofhigh-level

have passed, in

are

obtained

"Recommended

control':onpage

meters

show

the

meters

set. The

highest

scale,

type

the

2

show

inputs

except

which

*

"Dolby"

of

Licensing

op-

from

for
for

)

the

or

Dolby

OMPX

FILTER

Normally

When recording FM stereo

toONif

set it
not

been

If

the

tunerorthe

(most

high-quality

this

switchtoON.

• MONITOR

When

in-

adjusting
position
recorded. During
monitoringofthe
switch

setting,
window.
During recording, use
the

recorded sound.

and

the

double-D

Corporation.

Laboratories

Noise

Licensing

switch

set

this

switchtoOFF.

the19kHz

adequately

(SOURCEn)to

suppressed by

receiver

tuners

switch

and

the

recording level, set

playback,

recorded sound.

"SOURCE"or"TAPE"

this

symbol

are

trade

reduction

broadcasts

pilot

signal

suppresses

and receivers will), youdonot

marksofthe

system

Corporation.

manufactured

with

the

and

the38kHz

theFMtunerorreceiver.

such

signals

Dolby NR system,

indicator

this

allow

monitoringofthe

depress

switchtomonitor

switchtothe

this

switch

Accordingtothe

will

(TAPE

appear in

either

Dolby

Laboratories

under

subcarrier

adequately
havetoset

soundtobe

0.)

MONITOR

the

the

source

license

have

released

to

allow

indicator

or

-9-

TC-K555ES

OREC

LEVEL (recording level) controls

These

controls

panel is for the

adjust

nel. To
propriate

OTiMER

You can set
by

connecting

timer

switchtoREC.

(!) REMOTE control connector

Connect

unittooperate

trol
Synchronized
tables, using

instruction

the
it.

CD

Tape counter

This

counter

• COUNTER RESET button

Press

this

GCOUNTER

Presstorewind the tapetothe

The word

~

ing the
playback
When youdonot use the
The word

4D

Function buttons

It is possibletoswitch
dicator

lamps

pause mode.

adjust

the

left

the levelofthe

knob

while

switch

the

unittorecord or play back at a predetermined

any

commercially

the

optional

operationisalso

the

optional

manualofyour

indicates

buttontoreset

MEMORY button

"MEMORY"isdisplayed
button

together

from

"0.00."

"MEMORY"

light

recording level. The

channel and the

holding

To play back, set ittoPLAY.

RM-50 (wired) or RM-80 (wireless) remote con-

the

tape

RM-65

the

tape

the

with

memory

will disappear.

directly

when

the

knob

other

left

or right channel only,

the

other

available timer. To record, set

transport

possible

synchro

remote

running

tape

"0.00"

the -

function,

from one modetoanother. The in-

tape

deckisin

knob

knob.

functions

with

remote

control

unit

time

.

counterto"0.00."

pointonthe

below

the

tape

button

automatically

press

the

nearest

for

the

right

turn

from a

selected Sony turn-

forward, record or

distance.

control

unit. Read

before

operating

tape counter.

counter. Press-

this

button

the

chan-

the ap-

time

this

starts

again.

G)HEADPHONES jack

Headphones
be recorded ortolistentoa recording in the
Headphone volume is

maybeinserted

adjustable

eithertomonitor

with

the

oHEADPHONES level control

This

control

adjusts

the

the

peak program meters or the

fect
jacksatthe

rear.

headphone level.

This

output

the

input

playback

HEADPHONES

selling

levelofthe

does

signals

mode.

control.

not

LINE OUT

to

af-

"

- (rewind)
buttonisalso

• (stop)
stop
tion.

~

(forward)

record, press

- (fast-forward)
rapidly.

• (record)
start

" (pause)

playback, press
more precisely the
muting

o (record

wanted

button:

button:Tostop

automatically

button:

button:

recording.

button:

mode.

muting)

material

Press

this

used,

with

when it is

Press

this

button

button:

Press

To pause

this

button.

startofrecording andtorelease

button:

andtoinsert a

buttontorewind

the~button,toinitiate

the tape, press

this

while

Press

this

button

foramoment

This

Press

this

completely

buttontoplay

holding

this

buttontoadvance

together

button

this

buttontoeliminate

blank

the

tape. This

auto

play.

button.

the

button

with

the~button

during

during

The tape will

either

tape back. To

down.

the

recording or

the

record

recording.

wound in

the.

is also usedtocontrol

space

direc-

tape

to

un-

-10-

'-3.

RECORDING

RECOMMENDED SETTINGS FOR THE TAPE SELECT BUTTONS

AND BIAS CONTROL

the

Press
mended
mal), TYPE

appropriate

settings

II

(CrO,)orTYPE III (Fe-Cr) tape,

TAPE

select

button

listed

below. When recording using a TYPE I (nor-

referringtothe

adjust

the

BIAS

recom-

control
also.
While

the

to

change

settings

them when

are

optimum

using

for

cassettes

Sony

cassettes,

produced by

you may

other

want

manufac-

tures.

Tape

list

(for

Canada)

Type01tape

TYPE I

(NORMAL)

II

TYPE

(CrO,)

TYPE III

(Fe·Cr)

TYPE I

(METAL)

II

SONY:
MAXELL:

SCOTCH:

SONY:

MAXELL:
SCOTCH:

SONY:
SCOTCH:

SONY:

LNX,

SHF
UD, UD·XL
XL I·S

MASTER I

UCX·S, EHF

UD·XL II, XLlI·S
MASTER

FeCr

MASTER III

METALLIC

Tapes

I,

II

(C-60

and

AMPEX:
FUJI:
MEMOREX:

TDK:

AMPEX:
FUJI:
MEMOREX:

TDK:

BASF:

Other

C·9O)

GRAND

FX·I

MRX·'

AD, AD·X

GRAND

FX·II

HIGH BIAS

SA, SA·X

PROFESSIONAL III

metal

tapes

MASTER I

MASTER

II

BIAS

control

This

control

regulates bias current for TYPE I (NORM), TYPE
(CrO,) and TYPE III (Fe-Cr)
position

decreases bias by

the

full

clockwise

bias

is increased, extreme

bias

is reduced,

find

then

TYPEIIand TYPE III

position

extreme

the

appropriate

cassettes.

CD

"0

.~

Qi

~

"5
"5

0'--

Bias

1---B-ia-s-I-'n-c-re-a-s-ed--ooE::----

c.

RECORD MONITORING

this

tape

deck

As

compare

easily
ing mode by using
ing level and
is

affecting

.If

the

connected

tape

comparisonispossible

this

case, set

has separate record and

the source and the recorded

the

whether

MONITOR

thereisany

the recording.

amplifier

the

tape

deck

cassettes.

about

20% from

increases

high

frequencies

high

frequencies

bias

setting

reduced

-::-__--:-,--

FrequencyinHz

switch.

contamination

has a tape

with

the

MO ITOR

TC-K555ES

The full

it by

for each brandofTYPE

amplifier

switchtoTAPE.

counterclockwise

the

center

about

20%.

will

be suppressed. As

will

be boosted. You can

_

playback

heads, you can

soundsinthe

You can

check

on the heads

monitor

selector,

monitor

position

Generally, as

the

selector. In

II

and

I,

record­record·

that

sourcel

list

Tape

(for

SONY:

AHF,

BASF:

LH-X.

MAX

ELL : UD, UD·XLI,XL I·S

SCOTCH:

SONY:
BASF:
MAX
SCOTCH:

SONY:
BASF:
SCOTCH:

SONY:

MASTER I

UCX·S, UCX

Professional

ELL

: UD·XLlI, XLlI·S

MASTER

Feer

Professional III

MASTER III

METALLIC

The three-head
whileinthe
of

various

record mode, so

settingsofthe

trol.

other

countries)

Tapes (C-60

BHF

Professional

II

II

system

and

AGFA:

I

FUJI:
PHILIPS:

TDK:

AGFA:
FUJI:
PHILIPS:

TDK:

AGFA:
PHILIPS:

Other

permits

that

TAPE select

C·90)

SUPER FERRO

FX·I

SUPER FERRO·f

AD

STEREO

FX·II

CHROMIUM

SA, SA·X

CARAT

FERRO

metal

tapes

youtomonitor

you can easily

buttons

DYNAMIC

CHROM

CHROMIUM

the

recorded sound

check

and the BIAS con-

Typeoftape

TYPE I

(NORMAL)

TYPE

(CrO,)

TYPE III

(Fe·Cr)

TYPE IV
(METAL)

the

effects

MONITOR

f

switch

setting

and

signal

flow

REC LEVEL

l+---toJ

II

J-J()~A~~~i~

~,,~

J;:==='h-

Playback
head

....

REC LEVEL

--Q~

MONITOR

TAPE

l+---toJ

TO RECORD MATERIAL ONTO A SPECIFIC PORTION OF TAPE

to

When you want

new

material

between

be abletochange

pressing

the.

re-record a

directly

REC

button

two

specific

points

from

while

portionoftape ortoinsert

on a tape you will find it

the

playbacktothe record mode by

holding

the~button

LINE IN

LINE IN

handy

down.

to

-11-

TC-K555ES

PM

1M

'M

HE

)

1-4. TO ADJUST THE

Adjust

the
meters
recording
andifthe
ing level
distortion.

When

levelofthe
Generally

the

signal

Since
cies
too
tains
to

the

isticsofthe

tes
The
the
cassettes.

recording

the

input

level
settingistoo
should

This

the

TAPE

selected

speaking,

meters

deflect

level.

Example: Type I

Saturation

the

saturation

thaninthe

highifadjustedinthis

many

high

program

using

cassettetobe used,

the

following

recording

same

level

levelofthe

settingistoo

low,

be set as

level

will

buttonispressed,

typeoftapeisindicatedbythe

adjust

onlytothe

cassette

--

-40

-jO

-}(j

c::;J~c:::.c::::J~CJc::::Jc::Jc::JOc:::J~

c:::::;):=Jc::::x:=Jc:::J~c:lc:::::Jc:=lc::=Jc::::1c::;J

levelofType I

levelofany

lower

frequencies,

frequency

sourcetobe

typeoftape,

table

will

levelofvarious

provide

RECORDING

while

monitoringonthe

program

the

highaspossible

dependonthe

the

-10

cassette

wayifthe

signals.

recordedaswellasto

sourcetobe recorded.Ifthe

high,

the

recording

recording

typeoftape

the

range

recording

left

endofthe

0 oJ

/R~iCh

saturation

tapeislowerinthe

the

recording

programtobe

Consideration

since

each

may

have

you

withastarting

kindsofprograms

LEVEL

peak

willbedistorted,

willbenoisy.

while

still

being

above

the

levelbymaking

red

lineatthe

.4.,

-8

occurs.

higher

level

recorded

hastobe given

the

cassette,

different

even

characteristics.

pointinsetting

when

program

The record·

avoiding

used.

saturation

red line.

sure

that

highest

frequen·

may

still

con·

character·

casset·

using

Sony

be

Low

and

mid

freq.

Mid

and

high

Type

of

tape

I

R

G

El

9

II
III FeCr
IV

Sony

cassettes

BHF
AHF
UCX

METALLIC

range

programs

(vocal, etc.)

3

+
+ 4
+

3dB

5dB

+

+

6dB

range

(piano,
dB
dB

programs

guitar,

+ 1

dB

2

dB

+

2

dB

+

1

dB

+
+

6dB

freq.

etc.)

-12-

Note:

Follow

the

disa"ssembly

CASE

BWscrew

PLAYBACK BOARD

procedureinthe

SECTION

2

DISASSEMBLY

numerical

order

case

given.

j

+BVTT3x6

TC-K555ES

BWscrew

TC-KS

BOTTOM PLATE

r-----~

-13-

+

bottom

BVTT3x8

plate

5 TC-KSSSES

·1

CASSETTE

SYSTEM CONTROL

BOARD

LID/PANEL

f)+PTTWH3x5

f)

8

/1~

~

rO+BVTT3X20

~reverse

~"

--~

board

spacer

~systemcontrolboard

f)+BVTT3x6-

A-

-

~

8+

record

BVTT3x6

board

-14-

ESCUTCHEON ASS'Y

~.

~

TC-K555

5

MECHANISM SECTION

Of)

+

BVTT3x6

O+BVTT3x6

~

~

fush

thed~wsmarkedby

with precision screwdriver.

0

CASSETTE HOLDER

8

Remove\'he

oRerr:ove the loading '-

spnng.

gu;de

~

'--

a~~~

/;~

/d~'P

;:-tJi'

@}

Remove

'he

~

gu;de

rOller.·

'/)

Z ·

~2-

~

OBVTT2.6x5

-15-

~

cA'

~

f)

Remove

support.

the

holder

555ES

TC-K555ES

METER

AMS SOLENOID

Remove the
holdingitup.

When

~brake

F

brake

OBVTT3x5

brake

solenoid

installing:

solenoid

RECORD/PLAYBACK HEAD 0
ERASE HEAD &

f)

Remove the

playback

record

head.

~

~

f}

&

Remove

8"

the

belt. \ \

~Si

\ K'<::JV

\"

u~

.~

.....

~J

A-

I I

0 Remove

flywheel.

the

-16-

.CASSETTE-ORNAMENT PLATE

Note: This plate does

1.

Press the ejection

lid.

2.

Release the two claws from the cassette­ornament plate at

3. Depress the REC detecting lever and the half

detecting levers at the inside

move the cassette-ornament plate.

4. When reinstalling
perform the steps in a reverse manner.

not

need screws to be installed.

button

and open the cassette

both

the

top

of

the

cassette-ornament plate,

claw

corners.

the set and re-

TC-K555ES

3. Left Side View with Cassette Holder Shut:

TC-K

6. F

cassette-ornamentplate

MECHANISM

1. Top View with Cassete Holder Shut:

Bottom

2.

SECTION PHOTOGRAPHS

View with Cassette Holder Shut:

4. Right Side View with Cassette Holder Shut:

Front

5.

View with Cassette Holder Removed:

-17-

ES

TC-K555ES

6.

Front

View with Cassette Holder

Ornament Plate Removed:

and

Cassette-

Bottom

8.
Motor Removed:

View with Thrust Retainer and

DC

7. Rear View:

SELECT
SWITCH

Select tune lever:

" Brake plate ass'y: 0

Switch board: 0

~ote:

TUNE
BOARD

Be

suretotighten
order given. Otherwise
placed and decrease the performance.

LEVER/BRAKE

0,

f)

-.,

()

-.,

0

the

PLATE

screws 0 '- 0 in numerical

motor

position maybedis-

swith

board

ASS'Y/

~

~

/'1

~

,~01

",... .»';T • I

~

~

~

9. Bottom View with Switch Board and Flywheel
(T) Removed:

~~~~~

/

~

https://manualmachine.com//'~

~

~~~8~"il6:~

/~~;-

I

~~I,--

~[II

O/:'~

~1!:

I~~

60i

~I'I

'I""

~

~,

~:t/

~~-/

/

~/

//~~.

~~

1{O~

~

/

OPTPWH3xB

(1)

PTP'AI

~

• '-..... plate ass'y

.v'H 3 x B V . .

~*,

0PTPWH3xB

(Qjt:l~~\.fi;)'/

, brake sele

-~

~

~

-18-

/

ct

~--

'\

tune lever

~~

~

.

~

3-1. MECHANICAL ADJUSTMENTS

PRECAUTION

1.

Clean

the

following parts with a denatured-

alcohol-moistened swab:
record/playback

head

erase
capstan

2. Demagnetize

head

the

record/playback

pinch roller
ru

bber belts

idlers

head demagnetizer.

not

3. Do

use a magnetized screwdriver for

justments.

4.

After

the

adjustments, apply suitable locking

compoundtothe

The

5.

adjustments should be

rated

power

parts adjusted.

performed

supply voltage uhless otherwise

noted.

FF/REW Torque Measurement

Torque

FF

REW

Torque

CQ-201B

meter

Meter

65 - 85

tape

reading

g-cm

SECTION 3

ADJUSTMENTS

head

with

a

the

ad-

with

the

E

F

Tape Path Adjustment

1.

Insert a mirror cassette (CQ-009C).

2. Set
no

for

tape

forward

curlatthe

mode

tape

head.
If

there

is curl,

turn

3.

4.

lower

the

guide

attached)toadjust.

If

step 3 does
further
less

than

by

1/

supply side pinch roller (with

turning

2

the

not

get ridofthe

adjustment

turninthe

same angle.

that

the

5. Confirm
in Figure

6. Check
Tighten

2.

tape

adjust screw Difthe

erase head heightisas

wrinkling (zigzag).

up. (clockwise)

0

if

Loosen screw

the
ward. (conterclockwise)
Repeat
sary, within

7. Lock

record/playback

step 5

after

1/

turn.

2

the

screw with locking

head

adjusting screw Dasneces-

and

confirm

that

guides and recording

adjust

nut

and

raise and

curl, adjust

screws A,B,C

same directionatthe

tape

is wrinkling

tape

is wrinkling down-

compound.

TC-K555ES

there

is

tape

shown

_________•---10,

tape

I

n~~~5mm

I I

I I

I I

I I

~

E F

Fig. 2

I I

Fig. 1

O.75mm

(b)

1.

Loosen
the

is

3 : 5

adjustment

2. When
height,check

wrinkling.

D

*When

screws E, F so

ratio

betweenaand

and

changing

C 8

replacing

as

shown

the

above

adjust

with

shim.

erase

for

tape

tape

the

below

when

adjustment.)

that

b

the

head

path

pinch

roller,besure

attaching

adjustment

it.

pinch
roller

that

(After
capstan

the

measurements

installation,

Fig. 3

perform

tape

guide

are

16.1

mm

-19-

TC-K555ES

Head

Base

Position Adjustment

Perform the following adjustment when replacing the
head

base

solenoid.

Perform with

place.

1.

Press
finger until

2.

Draw a lineasshown in Figure 2. Replace with

the

new

the

old head base solenoid still in

the

head base solenoid core with

the

head base stops moving.

head base solenoid.

the

3. Loosen

mounting

screw,

match

the

line drawn in step 2, and tighten the screw.

the

4. Lock

screw after adjustment.

with

the

screws

core

~..--_,.--:

head

base solenoid

..~--"?

~

...

, ,

, ,

_...L

__

.L_,

X:

X I

__

head

board

I

I

I
I

I
I

I

..J

Fig. 1

head

L-_..-L~;----

base position adjustment

draw a line

head

board

Jz.

Fig. 2

mech

chassis

-20-

TC-K555ES

TC-K

Pinch Roller Clearance Adjustment

1.

Confirm
roller and capstan is more
mode.

Ifitis less

2.
tionofthe

that

than
arrow.

more
O.3mm

the

clearance between

0.3 mm,

than

I I

~

1-4-

, I

I I

I I

I

than

bend

...

the

0.3 mm in pause

@ in

the

pinch

roller

pinch

direc-

springscale

tension gauge ----#

Pinch Roller

1.

Confirm
capstan.

2. Set
from
measure
roller begins

T side

S side

pinch

roller

or

Pressure

that

in

forward, move

the

capstan,

the

valueatthe
to

270-330

180 -

Measurement

the

pinch roller is paralleltothe

the

pinch roller away

then

back

toward

point

where

rotate.

g

280

g

capstan

pinch

roller

spring scale

y tension gauge

it, and

the

F

pinch

or

pinch

roller

clearance

adjustment

-21-