ENSONIQ Mirage - Section D: Replacing The Disk Drive; Section E: Replacing The Pitch and Modulation Wheels; Section F: Replacing The Line Filter

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SECTION

Replacing

The

Disk

Drive

The

disk

drive

is

held

in

place

with

four

screws

through

the

bottom

of

the

cabinet.

To

avoid

damage

to

the

drive

components,

always

remove

the

drive

unit

from

front

of

the

panel.

1.

Unplug

all

cords

from

the

unit

and

remove

the

five

screws

which

fasten

the

control

panel,

and

raise

the

panel.

2.

Disconnect

the

cables

from

the

drive

unit,

noting

the

polarity.

This

is

important

because

in

some

earlier

units

the

disk

drive

cables

were

crimped

wrong

and

the

red

line

is

not

Pin

1

but

Pin

34.

3.

Tilt

the

Mirage

up

onto

its

back

to

expose

the

four

disk

drive

fastening

screws.

Remove

the

screws

while

supporting

the

drive

unit

with

your

free

hand.

IMPORTANT!

4.

Carefully

guide

the

disk

drive

out

through

the

front

panel,

taking

care

not

to

damage

the

plastic

face

plate

or

exposed

components.

Do

not

handle

the

drive

unnecessarily.

We

suggest

that

you

place

it

immediately

in

an

anti-static

bag

or

appropriate

box.

5.

To

reassemble,

carefully

guide

the

new

drive

in

through

the

front

panel,

again

giving

special

care

to

the

face

plate

and

exposed

components.

6.

Tilt

the

Mirage

up

on

its

back

while

supporting

the

drive

with

one

hand.

Fasten

the

drive

with

the

four

screws

and

lockwashers.

RED

POLARITY

LINE

TO

DISK

DRIVE

TO

JI

7.

Reconnect

the

cables.

Note

that

the

ribbon

cable

has

CONNECTOR

i

ON

MAIN

pre-formed

bends.

Refer

to

Figure

4

to

make

sure

that

FIGURE

4

-

DISK

DRIVE

CABLE

BOARD

the

cable

is

properly

routed

in

the

case.

8.

Close

the

control

panel

and

test

the

unit.

SECTION

Replacing

The

Pitch

and

Modulation

Wheels

The

pitch

and

modulation

wheels

are

replaced

together,

along

with

the

pitch

and

mod

wheel

panel

and

wiring

harness.

Special

care

should

be

given

to

properly

aligning

the

sheet

metal

with

the

front

of

the

Mirage

cabinet.

1.

Unplug

all

cords

from

the

unit

and

remove

the

five

screws

fastening

the

control

panel.

Lift

the

panel

from

the

front.

2.

Tilt

the

Mirage

up

on

its

back

to

expose

the

four

wheel

module

screws

on

the

bottom.

Remove

the

screws

while

supporting

the

wheel

module

with

your

free

hand.

3.

The

wiring

harness

is

hard

wired

into

the

wheel

module.

Unplug

the

harness

from

all

four

connections

and

cut

the

two

wire

ties

to

release

the

harness.

IMPORTANT!

4.

To

reassemble,

first

install

the

new

wheel

module

with

the

four

screws,

noting

that

the

screw

holes

in

the

cabinet

are

oversized.

Carefully

align

the

module

so

that

it

fits

flush

against

the

end

cap

and

lines

up

with

cabinet

on

the

front.

If

this

module

is

not

aligned

properly,

it

will

interfere

with

the

operation

of

the

keyboard

or

pitch

and

modulation

wheels.

5.

Reconnect

the

wiring

harness

and

install

new

wire

ties.

6.

Close

the

front

panel

and

test

the

unit.

Replacing

The

Line

Filter

1.

Remove

all

cables

from

the

Mirage,

including

the

power

cable.

Check

the

power

cable

for

continuity.

2.

Remove

the

five

screws

which

fasten

the

Mirage

control

panel

and

raise

the

panel.

3.

Remove

the

two

AC

connectors

from

the

filter,

noting

the

polarity.

4.

Remove

the

two

screws

and

nuts

which

secure

the

filter

to

the

case.

Note

that

there

are

lockwashers

on

both

the

inside

and

outside.

5.

Install

the

new

line

filter

from

inside

the

case

and

reconnect

the

two

AC

connectors,

noting

the

polarity.

Note

on

some

Mirage

units

the

line

filter

must

be

mounted

from

the

outside

of

the

case.

6.

Close

the

control

panel

and

test

the

unit.

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