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ADJUSTMEhITS

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Adjustm*nt

Measuring Equiprnent

1.

Low-frequency oscillator

flectronic

2.

3.

Attenu Frequency

4.

Jig,

Test

1. HeacJ

Dolby tape

2.

Points

vcitmeter

ator

corrnter

Tapes

and

adjustment

{400

3. Azimuth correction

4.

Tape speed

5. h4irror tape

Normal

6.

7

.

Chrome

Lo-D

B.

adjustrnent tape

{tape

tape

nreial

iape

ies

I

cur"re

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Check

jig

Hz}

tape

transport check}

tape}

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(EX

iape)

tC-/i6)

nt

ad

ing

Tape

t

iustnrent

level

adjustr-nerlt

10 kHz)

{3,000

i

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Hz}

-*-+w

Fig.

t"t

are cleaned

cedu re

-

1.

Tape Speed

nput

I

Tape

speed

adiustment

Adjustrnent

Connect the

back

minutes

pofiion

a

test

or

c\f

the

alcclhol,

with

Adjustment

Adiustrnent

tape

Procedu

re

frequency

after

tape

rnore. Adjust

tape.

Playlrack

adiustment

Meter

according tCI

value

counter

unit has

the

tape

thE

ievel

adjus"inre

the

Adjustment

Semi-fixed

inside

to

LINE OUT,

been operated

speed at

nt

following

point

volume

rnotor

of

the

and

interrnediate

an

play-

for

pro-

2A

t

I

t

s

Control

the switches

Set

Recording

Output

Dolby

Tape selecior MPX

switch

Monltor switch

i

lJote

Cassette

No

tape

Test

Normal

Chrome tape

HITACHI

Adjustments

removed and

anci

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level

adjustrrent

NR

switch

{S201i

tape

The

in

accordailce

tion

used

tape

is

tape

follcrnrs.

as

Tape

used

METAL tape

must

the magnetic

Positians

and controls

acijustment

iRV101)

{5301}

iS202

tS303)

selector switch

with

performed

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heads,

to

the

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^' 5204)

is

the

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i

after

pinch,,rlier

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levels.

MAX MAX

OFF

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CFF

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proper

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set to

magnetic tape

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switch

5204}

seiector

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CrO3

METAL.IV

cassette

the

and

1

posl-

to"be

'

cover ts

capstan

2. Azimuth ,Adjugtrnent

lnput

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t1)

head

the

and orientation

iig.

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tzl

playback When nels

are

channel

{Ll

tcl

check

values

ference

When

{3}

tion,

read

iig.

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the

an electronic

the

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alignment

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tap€.

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ferent,

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va

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within

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to

right

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tween

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adjust-

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screw

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value

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same

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2

lf

of

head.

the

extrerne

an

head

adiustrnent

height

left

the left

be

the

after

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chan-

sure

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posi-

t

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i

I

d

:

3. Adjustrnents

'

and Meter

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af

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OUT

gain}

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the

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reads

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t2)

\J

4.

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{'l }

{21

-

i

-.

DclbrY

trpe_i

electronic

the

tape, antJ

adlustrnsnt

the

1)

Connect the

rough

th

ing

cord

the

2) Set

apply

and

rneier

the

voltage

3l Adjust

nteter

Cftl.

the

Set

insert

and

head

erase

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k

l{z

85

ced

an attenu ator,

mode.

appeared

RTi02L and

correspc;nds

e,'f Bias Osciilation

iape selector

10.5

trdiustnrent

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i-

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ure

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value

to.z

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so

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jr-rst

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value.

r

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low-frequency oscillator to

switch to

400

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ihe attenuator

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k

Hz.

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LlNf

R

to a

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OUT

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FrequeilcY

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electrcnic

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the

is

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point

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the output

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the

of

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5.

o

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Record

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i1

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ously

Play

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output B.'

a

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ously PlaVback

tzl

output

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6.

Ccarse

lnput

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oscillator

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TAPE put

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output

position

voltage

NR

cperation check

B

type

dB

r*card

back

is

approx.

dB

record

Adiustment

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the

and

that

so

terminal.

is

52G

+

using

r':netal

resp*ct

with

"$clby

witft

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with

di{f

using

with

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C"

betwee n

ererice

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rnetal

resoect

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with

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ference between

is

approx.

o{

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<;.

l{

i

1u

rialu

j_

rzo

fy

low'frequeficlr oscillator

_of

set

acijust

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the

the output

voltmeter

the

kHz

.2

1

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RT201

mV --10 dB.

to

i6 dB-

strnent

50

set the

'

tape

{ME

the

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O{:F"

F

F"

O

"ilclby

tape

{M

tlolby

ttre

OFF"

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F

OF

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e

-lo

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as to

from

reads

monitor switch

and R so

t-

C46}

level. Continu'

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check

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O

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level.

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and check

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te{fi$d

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to LINE

initiate

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to the

low-frequencY

the

mV

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at 5

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at

th

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-

at 1

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that

F F"

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strnen

iu

pot

nt

lN

recording

logflgg

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that the

kHz,

the

k H

the

and

t

and

dB

to the

out-

z.

at

AA

rl

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7. Fine Adjustment

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at the

HITACHI

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levels

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F

ii-izi

1

.2kl12k

1

.21:/12k

1

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/'t?k

1

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Recording Level

of

types of tapes

the

flecording

Leve

520mV

520rnV

level

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-23d8

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indicated

ju

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point

ATT

ATT I

to

sttnert

adiust

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within

wi

and check

Playback

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within

r0.5d8

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in

th

within

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I

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l dB

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playback

the

level

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frT501

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|

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levels.

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initiate

to

voltmeter

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within

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check.

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ilsino

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the recording

switch

to

frcnr

the low-frequency

reads

the

attenuator

mV

520

rilonitor

:witch

apply

low-frequency

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a

difference

+1

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chrorne

cjB,

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readjust

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szO

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signals

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rrent

Cu

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a

signal

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mv

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dB.

ta

of 1.2

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between

metal

it

the

recording

the

tape.

cassette

oscillator

-to

electronic voltmeter

of 1.2 ki{z

mocje.

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position

fiCE

oscillatr:r

dB

at

electron

TAPE

kHz

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the

shor:ld

and

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LINE our.

position

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two outputs

be

level

330

-10

the

tapes

playback

chassis section

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f,

t_lN

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rc

ac

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12

kHz

RT501

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playback

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ths

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