PPG wave 2.2 - PPG WAVE 2.2 Adjusting Instructions; Adjusting the A;D Converter of the analog controls; Adjusting the Pitch Wheel

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PPG

WAVE

2.2

Adjusting

instructions

The

PPG

WAVE

2.2

has

fully

digital

tone-generators

which

need

no

tuning

at

all.

Becaurse

of

the

pich-wheel

which

is

an

analog

control

there

can

be

a

total

detuning

of

the

instrument.

Follow

these

instruction

for

gettinq

propper

function.

3

a

^

rr

Open

the

instrument

as

followes:

Remove

the

two

screws

on

both

sides

of

the

WAVE

2.2

s

case.

Loosen

the

two

screws

at

both

posterior

sides,

which

work

as

hinges.

Lift

the

cover

and

remove

the

savety-plate

of

the

printed

circuit

boards.

Now

the

instrument

is

ready

for

service.

1-

Adjusting

the

A/D

Converter

of

the

analog

controls

av

P

any

P

ro

9

ramm

and

have

a

look

into

the

ANALOG

DISPLAY.

Move

one

control

to

the

right-end

position

(full

clockwise)

and

notice

the

corresponding

analog

value.

A

full

clockwise

turned

control

must

show

value

*63'.

If

not.

you

have

to

adjust

the

A/D

Converter.

The

position

of

the

A/D

trim

control

is

shown

in

picture

1.

Adjust

the

A/D

trim

control

to

show

value

"63"

even

short

before

the

end-position

of

the

analog

control.

Make

this

adjustment

before

adjusting

the

Pitch

Wheel

(Bender).

2.

Adjusting

the

Pitch

Wheel

Call

up

any

program,

that

uses

keyb.mode

"0".

Make

shure,

that

no

detunings

work

on

the

oszillators

(DETUrO).

Choose

Bender

Intensity

BI:”3".

In

the

way

the

Bender

spreads

from

one

limitation

to

the

other,

thare

are

parts

with

no

effect

called

"windows".

A

"window",

for

example,

is

at

the

center

position.

The

center

position

of

the

wheel

should

be

in

the

middle

of

this

window.

It

can

be

adjusted

by

loosening

the

screw

of

the

plastic

wheel

fixed

on

the

potentiometer

axis

and

adjusting

the

center

position

of

the

wheel

exactly

to

the

centre

of

the

window.