Sharp GF-9090H User Manual

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ws

SWING

ADJUSTMENT

OF

VU

METER

(Refer

to

Figures

23

and

25)

1.

Apply

signals

(1

kHz,

—60

dB)

to

the

EXT.

MIC

jacks

(J201,

J202).

2.

Adjust

the

record

volume

controls

(VR201,

VR202)

so

that

the

V.T.V.M.

reads

3.5

mV.

3.

Rotate

the

semi-variable

resistors

(VR305,

VR306)

to

adjust

so

that

each

of

the

two

VU

meters

(ME1,

ME2)

indicates

around

“0”

VU

and

swings

to

the

same

extent

in

right

and

left

of

the

position

‘‘0”

VU.

™

RECORD/PLAYBACK

HEAD

AZIMUTH

ADJUSTMENT

(Refer

to

Figure

26.)

1.

Connect

load

resistor

(4

ohm)

to

the

EXT.

SP

sockets

(SO301,

SO302)

and

connect

outputs

of

both

the

right

and

left

channels

to

the

vertical

and

horizontal

input

terminals

of

oscilloscope.

2.

Insert

the

test

tape

(MTT-114,

10

kHz,

—10

dB

Recorded).

3.

Place

the

unit

in

PLAYBACK

mode.

4.

Adjust

the

head

azimuth

adjusting

screw

so

that

Lissajou’s

waveform

attains

the

maximum

and

the

same

phase

in

right

and

left.

Figure

25

5.

Even

without

using

the

oscilloscope,

also

adjust

the

head

azimuth

adjusting

screw

so

that

outputs

of

both

the

right

and

left

channels

attain

the

maximum

and

the

same

phase

in

right

and

left,

and

as

a

result,

the

output

won’t

be

decreased

so

much

considerably

even

when

the

MODE

switch

(SW303)

is

set

to

“MONO”.

SWITCH

POSITION

MODE

(SW303)

|

STEREO

EXT.

SP

*PLAYBACK

mode

(SO302)

AC

V.T.V.M.

VR

CONTROL

VOLUME

(VR301)

TREBLE

(VR302)

BASS

(VR303)

POSITION

Maximum

Mechanical

Center

OSCILLOSCOPE

Figure

26

13

Table of Contents

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Sharp GF-9090H Specifications

General

Brand	Sharp
Model	GF-9090H
Category	Stereo System
Language	English

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