Nikon OT-8A Istruzioni operative

Altri manuali per OT-8A

1

Indice

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Nikon

Repair

Manual

NIKON

CORPORATION

TOKYO,

JAPAN

Table

of

Contents

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L

0T-8A

TEST

PROGRAM.

1-1

1.

Key

Names

.

1-2

2.

Entering

the

Test

Program.

1-3

3.

How

to

Use

Each

Key.

1-3

4.

Exiting

from

the

Test

Program.

1-9

n.

MECHANICAL

ADJUSTMENT

PROCEDURE

ra.

OT-8A

ERROR

MESSAGE

.

HI-1

OT-8A

Error

Message.

HI-2

IV.

REPLACEMENT

OF

BOARD

FOR

OT-8A.

IV-1

1.

Operation

Unit.

IV-2

2.

Lens

Chamber

.

IV-4

3.

Printer

.

TV-5

V.

EXTERNAL

OUTPUT

AND

INITIAL

SETTING

.

V-l

1.

Factory

Initial

Setting

.

V-2

2.

Entering

the

Initial

Setting

Mode

.

V-2

3.

Setting

for

Customer

1

.

V-3

4.

Setting

for

Customer

2

.

V-8

5.

Setting

of

the

Interface

(RS-232C).

V-12

6.

Exiting

from

the

Initial

Settings

Mode.

V-15

7.

Printing

Out

the

Initial

Settings.

V-15

8.

Setting

for

Using

the

Optional

Remote

Controller.

V-17

-1

-

Repair

Manual

I.

OT-8A

TEST

PROGRAM

1.

Key

Names

.

1-2

2.

Entering

the

Test

Program.

1-3

3.

How

to

Use

Each

Key.

1-3

3-1.

Mode

Selection.

1-3

3-2.

Selecting

the

Lens

Plate

.

1-4

3-3.

Driving

the

Lens

Plate.

1-5

3-4.

Automatic

Continuous

Rotation

Mode

.

1-6

3-5.

Writing

Offset

Values

.

1-6

3-6.

Setting

Initial

Settings

for

the

Factory

State

.

1-9

4.

Exiting

from

the

Test

Program.

1-9

1-1

Repair

Manual

I.

0T-8A

TEST

PROGRAM

1.

Key

Names

The

names

of

the

keys

on

the

OT-8A

operation

panel

axe

listed

below.

This

manual

uses

the

abbreviation

of

each

key

name.

(1)

Data

selector

key:

(2)

Auxiliary

lens/ten

keys:

(3)

ENTER

key:

(4)

Binocular

key:

(5)

R/L

key:

(6)

S+/-

key:

(7)

Cross

cylinder

keys

for

cylindrical

power:

(8)

C+/-

key:

(9)

Cross

cylinder

keys

for

cylindrical

axis:

(10)

AX+/-

key:

(11)

PD

key:

(12)

ADDITION

key:

(13)

Cross

cylinder

off

key:

(14)

PRISM

key:

(15)

Auto

ref

data

input

key:

(16)

Auto

lensmeter

data

input

key:

(17)

FAR/NEAR

key:

(18)

Fine

step

key:

(19)

Cylindrical

power

transposition

key:

(20)

XY/BS

key:

(21)

CLEAR

key:

(22)

Copy

key:

(23)

PAPER

FEED

key:

(24)

PRINT

key:

[ID]

[VA]

[PD]

[SPH]

[CYL]

[AX]

[1]

[2]

[3]

[4]

[5]

[6]

[7]

[8]

[9]

[0]

[.]

[+/-]

[ENTE]

m

[R]

[L]

[R/L]

[S+]

[S-]

[XCC1]

[XCC2]

EC+]

[C-]

[XCA1]

[XCA2]

[AX+]

[AX-]

HH

[<-->]

[ADD]

[XCOF]

[PRIS]

[REF]

[DM]

[FAR1]

[FAR2]

[NEA1]

[NEA2]

[0.

12]

[1.00]

[C+/-]

[XYBS]

[CLEA]

[COPY]

[FEED]

[PRIN]

1

-

2

Repair

Manual

I.

OT-8A

TEST

PROGRAM

2.

Entering

the

Test

Program

Holding

down

[ADD]

and

[PRIS]

keys

together,

turn

on

the

POWER

switch.

When

initialization

of

the

lens

chamber

is

completed,

".001”

is

displayed

at

the

top

of

the

left

eye

field

in

the

lens

chamber

display.

Note

that

if

you

enter

the

program

with

the

motor

and

sensor

connectors

off,

it

may

take

a

long

time

for

OT-8A

to

enter

test

mode

because

information

concerning

those

connectors

cannot

be

provided.

3.

How

to

Use

Each

Key

3-1.

Mode

Selection

[FAR

1]:

Frame

mode

^

Pressing

[S+]

or

[S-]

key

once

rotates

the

lens

plates

by

one

frame

(30*),

the

astigmatism

and

prism

lenses

by

360‘,

and

the

PD

by

10

mm.

[FAR2]:

Pulse

mode

•

Pressing

[S+]

or

[S-]

key

once

rotates

the

lens

plates

and

lenses

by

one

pulse

of

the

motor.

•

Pressing

[XCC1]

or

[XCC2]

key

once

rotates

the

lens

plates

and

lenses

by

ten

pulses

of

the

motor.

[NEA1]:

Initialize

mode

Pressing

[NEA1]

key

and

one

of

[1]

through

[9]

keys

initializes

the

lens

plate,

lens

or

PD

drive

mechanism

specified

from

the

ten-key

pad.

Pressing

[0]

key

initializes

all

the

drive

mechanisms.

1-3

Repair

Manual

I.

OT-8A

TEST

PROGRAM

Selecting

the

Lens

Plate

Ten

keys

[1]

through

[8]

correspond

to

the

lens

plates

in

order

from

the

patient

side.

[1]

:

Pola

and

medium-power

lens

plate

[2]

:

High-power

spherical

lens

[3]

:

Recos

plate

[4]

:

Low-power

spherical

lens

[5]

:

Minus

astigmatism

lens

[6]

:

Plus

astigmatism

lens

[7]

:

Prism

lens

[8]

:

Prism

lens

^

[9]

:

PD

drive

mechanism:

This

operates

whichever

the

right

or

the

left,

is

selected.

Press

[R]

to

select

the

lens

section

for

the

right

eye.

Press

[L]

to

select

the

lens

secdon

for

the

left

eye.

Press

[R/L]

to

select

both

the

lens

sections.

(1)

(21

(3)

(4-)

(51

(61

(71

(8)

1-4

Repair

Manual

I.

OT-8A

TEST

PROGRAM

3-3.

Driving

the

Lens

Plate

This

subsection

refers

to

the

rotation

directions

of

lenses

on

the

tester

side.

[S+]:

Lens

plates

and

lenses

[1]

through

[8]

....

These

rotate

counterclockwise.

PD

[9].This

narrows.

[S-]:

Lens

plates

and

lenses

[1]

through

[8]....

These

rotate

clockwise.

PD

[9].This

widens.

In

frame

mode

[PARI],

lens

plates

[1]

through

[4]

rotate

by

one

frame

(30’),

the

astigmatism

and

prism

lenses

rotate

by

360‘,

and

the

PD

[9]

moves

by

10mm.

In

pulse

mode

[FAR2],

drive

mechanisms

[1]

through

[9]

operate

by

one

pulse

of

the

motor.

[XCC1]:

In

pulse

mode

[FAR2],

pressing

this

key

rotates

lens

plates

and

lenses

[1]

through

[8]

counterclockwise

by

ten

pulses

of

the

motor.

[XCC2]:

In

pulse

mode

[FAR2],

pressing

this

key

rotates

lens

plates

and

lenses

[1]

through

[8]

clockwise

by

ten

pulses

of

the

motor.

[C+]:

This

key

adjusts

lenses

[5]

and

[6]

to

change

the

cylindrical

power

by

+0.25Dpt.

[C-]:

This

key

adjusts

lenses

[5]

and

[6]

to

change

the

cylindrical

power

by

-0.25Dpt.

The

fine

step

key

[0.12]

can

be

used

to

change

the

adjustment

step

to

0.125Dpt.

[XCA1]:

This

key

adjusts

lenses

[5]

and

[6]

to

change

the

cylindrical

power

by

+3.00Dpt.

[XCA2]:

This

key

adjusts

lenses

[5]

and

[6]

to

change

the

cylindrical

power

by

-3.00Dpt.

The

fine

step

key

[0.12]

can

be

used

to

change

the

adjustment

step

to

l.OODpt.

[AX+]:

This

key

rotates

the

minus

astigmatism

lens

[5]

by

180’.

[AX-]:

This

key

rotates

the

plus

astigmatism

lens

[5]

by

180’.

[<—>]:

This

key

rotates

both

astigmatism

lenses

[5]

and

[6]

counterclockwise.

[-*<—]:

This

key

rotates

both

astigmatism

lenses

[5]

and

[6]

clockwise.

[C+/-]:

This

key

rotates

both

prism

lenses

[7]

and

[8]

counterclockwise.

[XYBS]:

This

key

rotates

both

prism

lenses

[7]

and

[8]

clockwise.

[BI]:

Pressing

this

key

to

tum

on

the

LED

enters

the

motor

into

quick

rotation

mode.

Pressing

this

key

to

turn

off

the

LED

enters

the

motor

into

normal

rotation

mode.

[1:00]:

Pressing

this

key

to

turn

on

the

LED

enters

the

motor

into

medium-speed

rotation

(test)

mode.

Pressing

this

key

to

turn

off

the

LED

enters

the

motor

into

normal

rotation

mode.

Repair

Manual

I.

OT-8A

TEST

PROGRAM

[COPY]:

Moves

lenses

[1]

through

[4]

to

the

hole

for

wiping

the

lenses.

Pressing

this

key

again

returns

the

lenses

to

the

normal

position.

[0.12]:

Pressing

this

key

to

turn

off

the

LED

puts

the

lenses

into

position

at

the

diecast

hole

for

wiping

the

lenses,

with

the

display

cover

(tester

side)

removed.

Pressing

this

key

to

turn

off

the

LED

puts

the

lenses

into

position

at

the

hole

for

wiping

the

lenses,

which

can

be

seen

be

removing

the

NIKON

nameplate

on

the

display

cover

(patient

side).

(Do

not

remove

the

NIKON

nameplate

if

a

replacement

is

not

available.)

3-4.

Automatic

Continuous

Rotation

Mode

[REF]:

Pressing

this

key

causes

the

lenses

to

rotate

and

stop

intermittently

for

about

50

minutes

and

then

stop

in

the

original

mode.

Turn

off

the

power

to

exit

from

this

mode.

A

A

[1]

key.Rotates

lens

plates

[1]

through

[4]

intermittently

about

11

seconds,

each.

[2]

key.Rotates

astigmatism

lenses

[5]

and

[6]

intermittently

about

11.5

seconds,

each.

[3]

key.Rotates

prism

lenses

[7]

and

[8]

intermittently

about

12

seconds,

each.

[4]

key.Rotates

lenses

[5]

through

[8]

intermittently

about

12

seconds,

each.

[5]

key.Drives

the

PD

motor

[9]

intermittently.

[6]

key.Rotates

lens

plates

and

lenses

[1]

and

[8]

intermittently

about

13.5

seconds,

each.

[7]

key.Activates

all

the

drive

mechanisms

[1]

and

[9]

intermittently

about

16

seconds,

each.

3-5.

Writing

Offset

Values

Since

the

sensors

of

the

lens

plates

and

lenses

are

not

fixed,

they

may

not

be

positioned

correctly.

Therefore,

the

amount

of

dislocation,

a

offset

value,

must

be

written

to

the

test

program

to

make

that

program

correct

the

position

of

the

lens

plates

and

lenses.

Offset

values

are

written

to

the

memory

EEPROM.

To

write

offset

values,

perform

fine

adjustment

of

the

position

of

the

lens

plates

and

lenses

in

pulse

mode

[FAR2],

then

complete

the

following

steps.

You

may

not

write

compensation

values

without

doing

fine

adjustment.

Since

the

displayed

offset

values

are

stored

in

memory,

they

cannot

be

verified

during

fine

adjustment.

When

you

write

or

delete

offset

values

to

or

from

memory

(EEPROM),

set

DIP

switches

Nos.

1

and

2,

located

on

the

CPU

board

in

the

lens

chamber,

to

ON.

When

you

complete

the

writing

or

deletion,

reset

DIP

switches

Nos.

1

and

2

to

OFF.

(1)

To

delete

all

data

from

memory

(EEPROM),

press

the

following

keys

in

sequence:

[LM],

[CLEA],

[CLEA]

and

[ENTE].

This

sets

each

offset

value

to

"0".

1

-

6

Repair

Manual

I.

0T-8A

TEST

PROGRAM

(2)

Writing

offset

values

*

Lens

plate

To

write

the

offset

values

for

the

plates

[1]

through

[4]

to

memory,

press

the

following

keys

in

sequence:

[LM],

[SPH]

and

[ENTE].

*

Astigmatism

lens

To

write

the

offset

values

for

the

astigmatism

lenses

[5]

and

[6]

to

memory,

press

the

following

keys

in

sequence:

[LM],

[CYL]

and

[ENTE],

*

Prism

lens

To

write

the

offset

values

for

prism

lenses

[7]

and

[8]

to

memory,

press

the

following

keys

in

sequence:

[LM],

[AX]

and

[ENTE].

*

Pupil

distance

To

write

the

offset

values

for

the

right-eye

pupil

distance

and

left-eye

pupil

distance

to

memory

separately,

press

the

following

keys

in

sequence:

[LM],

[PD]

and

[ENTE],

*

Identification

number

To

write

an

identification

number

to

memory,

press

the

following

keys

in

sequence:

[LM],

[ID],

XXXXX

,

and

[ENTE],

~

'

Enter

a

5-digit

number

from

the

ten-key

pad.

Before

the

above

work,

select

the

right

or

left

eye

lens

section

by

using

the

[R]

or

[L]

key.

Offset

values

cannot

be

written

in

binocular

mode

[R/L].

1-7

Repair

Manual

I.

0T-8A

TEST

PROGRAM

(3)

Displaying

offset

values

Pressing

[LM],

[PRIN]

and

[ENTE]

in

sequence

outputs

offset

values

from

memory

(EEPROM)

to

the

lens

chamber

display.

The

order

of

the

display

is

as

follows:

R

field

on

the

left

part

of

the

display

l

[1-1,

Offset

value

of

right

eye

lens

plate

Till

i

[1-2,

Offset

value

of

right

eye

lens

plate

[211

l

[1-3,

Offset

value

of

right

eye

lens

plate

[311

i

[1-4,

Offset

value

of

right

eye

lens

plate

[411

l

[1-5,

Offset

value

of

right

eve

cylindrical

lens

[511

1

L

field

on

the

right

part

of

the

display

i

[2-1,

Offset

value

of

left

eye

lens

plate

mi

l

[2-2,

Offset

value

of

left

eye

lens

plage

r211

[2-3,

Offset

value

of

left

eye

lens

plate

r311

i

[2-4,

Offset

value

of

left

eye

lens

plate

r4H

X

[2-5,

Offset

value

of

left

eye

cylindrical

lens

[511

1

[1-6,

Offset

value

of

right

eve

cylindrical

lens

[611

[2-6,

Offset

value

of

left

eye

cylindrical

lens

[611

i

[1-7,

Offset

value

of

right

eye

prism

lens

[711

i

[1-8,

Offset

value

of

right

eye

prism

lens

r811

1

[1-9,

Offset

value

of

right

eye

prism

lens

f911

i

[2-7,

Offset

value

of

left

eye

prism

lens

[711

X

[2-8,

Offset

value

of

left

eye

prism

lens

[811

X

[2-9,

Offset

value

of

left

eye

prism

lens

[911

After

the

above

values

are

displayed,

finally

the

following

information

is

listed.

Left

part

of

display

Right

part

of

display

[Product

number:

First

digit]

[dISP]

[Product

number:

Last

four

digits]

[ENd]

[Sum

check

value]

[

Ver.No.

]

*

Offset

values

are

used

to

correct

the

positions

of

lens

plates

[1]

through

[4],

the

angles

between

the

base

and

axis

for

lenses

[5]

through

[8],

and

the

difference

from

64

mm

for

the

PD.

1-8

Repair

Manual