Orion DVD/VR-2961 - Page 30

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MECHANICAL

ADJUSTMENTS

1-4:

CONFIRMATION

OF

VSR

TORQUE

‘1.

Install

the

Torque

Gauge

(JG002F)

and

Adapter

(JG002B)

on

the

S

Reel.

Set

to

the

Picture

Search

(Rewind)

mode.

(Refer

to

Fig.1-4-B)

2.

Then,

confirm

that

it

indicates

120~180gfecm.

NOTE

Install

the

Torque

Gauge

on

the

reel

disk

firmly.

Press

the

REW

button

to

turn

the

reel

disk.

1-5:

CONFIRMATION

OF

REEL

BRAKE

TORQUE

(S

Reel

Brake)

(Refer

to

Fig.

1-4-B)

1.

Once

set

to

the

Fast

Forward

mode

then

set

to

the

Stop

mode.

While,

unplug

the

AC

cord

when

the

Pinch

Roller

Block

is

on

the

position

of

Fig.

1-4-A.

2.

Move

the

Idler

Ass’y

from

the

S

Reel.

3.

Install

the

Torque

Gauge

(JG002F)

and

Adapter

(JG002B)

on

the

S

Reel.

Turn

the

Torque

Gauge

(JG002F)

clockwise.

4.

Then,

confirm

that

it

indicates

60~100gfecm.

(T

Reel

Brake)

(Refer

to

Fig.

1-4-B)

1.

Once

set

to

the

Fast

Forward

mode

then

set

to

the

Stop

mode.

While,

unplug

the

AC

cord

when

the

Pinch

Roller

Block

is

on

the

position

of

Fig.

1-4-A.

.

Move

the

Idler

Ass’y

from

the

T

Reel.

.

Install

the

Torque

Gauge

(JG002E)

and

Adapter

(JG002B)

on

the

T

reel.

Turn

the

Torque

Gauge

(JG002E)

counterclockwise.

4.

Then,

confirm

that

it

indicates

30~50gfecm.

@OMm

The

position

at

FF

mode.

Pinch

Roller

Block

Stop

at

this

position.

Cassette

Opener

The

position

at

STOP

mode.

Capstan

DD

Unit

Cassette

Holder

Ass’y

Torque

Gauge/Adapter

(JGO02F/JGO002B)

Torque

Gauge/Adapter

(JGO002E/JG002B)

D2-2

NOTE

lf

the

torque

is

out

of

the

range,

replace

the

followinjParts.

1-5

2.

CONFIRMATION

AND

ADJUSTMENT

OF

TAPE

RUNNING

MECHANISM

Tape

Running

Mechanism

is

adjusted

precisely

at

the

factory.

Adjustment

is

not

necessary

as

usual.

Whenyou

replace

the

parts

of

the

tape

running

mechanism

betause

of

long

term

usage

or

failure,

the

confirmation

and

adjust-

ment

are

necessary.

Replacement

Part

Idler

Ass’y/Clutch

Ass’y

S

Reel

side:

S

Reel/Tension

Band/Tersion

Connect/Tension

Arm

Assy

T

Reel

side:

T

Reel/T

Brake

Band//T

Brake

Spring/T

Brake

Arm

2-1:

GUIDE

ROLLER

1.

Playback

the

VHS

Alignment

Tape

(JGO01C

or

JG001E).

(Refer

to

SERVICING

FIXTURE

AND

TOOLS)

2.

Connect

CH-1

of

the

oscilloscope

to

TP103

(Envelope)

and

CH-2

to

TP102

(SW

Pulse).

3.

Trigger

with

SW

Pulse

and

observe

the

envelope.

(Refer

to

Fig.

2-1-A)

4.

When

observing

the

envelope,

adjust

the

Adjusting

Driver

(JG005)

slightly

until

the

envelope

will

be

flat.

Even

if

you

press

the

Tracking

Button,

adjust

so

that

flatness

is

not

moved

so

much.

5.

Adjust

so

that

the

A:

B

ratio

is

better

than

3

:

2

as

shown

in

Fig.

2-1-B,

even

if

you

press

the

Tracking

Button

to

move

the

envelope

(The

envelope

waveform

will

begin

to

decrease

when

you

press

the

Tracking

Button).

6.

Adjust

the

PG

shifter

during

playback.

(Refer

to

the

ELECTRICAL

ADJUSTMENTS)

NOTE

After.adjustment,

confirm

and

adjust

A/C

head.

(Refer

to

item

2-2)

CH-1

Envelope

(TP

103)

CH-1

|

CH-2

Track

Track

CH-2

SW

Pulse

(TP

102)

Entrance

Exit

r

Max

el

Max

A:B23:2

Fig,

2-1-B