2500_Users_Manual- - 第245页

Repair and Replacement Procedures Replacing the Labeler Power Supply If the labeler power supply fails, follow the steps below to replace it. Be sure to note the direction of rotation before you remove the fan so that yo…

Repair

and

Replacement

Procedures

Replacing

the

PE

Power

Supply

If

the

programming

electronics

power

supply

fails,

follow

the

steps

below

to

replace

it.

1.

Turn

off

the

2500

and

remove

the

power

cord.

2.

Disconnect

the

two

cable

connectors.

3.

Remove

the

four

1/4-inch

hex

nuts

at

the

corners

of

the

assembly.

4.

Carefully

lift

out

the

PE

power

supply

assembly.

5.

Install

the

new

PE

power

supply

and

reconnect

the

cables.

Replacing

the

Toroid

Transformer

If

the

Toroid

transformer

fails,

follow

the

steps

below

to

replace

it.

1.

Turn

off

the

2500

and

remove

the

power

cord.

2.

Disconnect

the

two

cable

connectors

JI

and

J3.

3.

Remove

the

single

3/16-inch

hex

mounting

screw.

4.

The

Toroid

transformer

is

heavy;

lift

it

out

carefully.

5.

Install

the

new

Toroid

transformer

and

reconnect

the

cables.

Replacing

the

Toroid

PCB

If

the

Toroid

PCB

fails,

follow

the

steps

below

to

replace

it.

1.

Turn

off

the

2500

and

remove

the

power

cord.

2.

Disconnect

the

four

cables

in

connectors

J-l

through

J-4.

3.

Remove

the

four

1/4-inch

hex

nuts

at

the

corners

of

the

board.

4.

Hold

the

edges

of

the

board,

do

not

touch

the

capacitors,

and

lift

the

board

straight

up.

You

may

damage

the

capacitors

if

you

apply

pressure

to

them.

5.

Install

the

new

Toroid

PCB

power

supply

board

and

reconnect

the

cables.

6.

Check

the

voltage

selection

switch.

Replacing

the

Controller

Power

Supply

If

the

controller

power

supply

fails,

follow

the

steps

below

to

replace

it.

1.

Turn

off

the

2500

and

remove

the

power

cord.

2.

Disconnect

the

two

cable

connectors.

3.

Remove

the

four

1/4-inch

hex

nuts

at

the

corners

of

the

board.

4.

Carefully

lift

out

the

controller

power

supply

board.

5.

Install

the

new

controller

power

supply

and

reconnect

the

cables.

6.

Check

the

voltage

selection

jumper.

7-20

ProMaster

2500

User

Manual

Repair

and

Replacement

Procedures

Replacing

the

Labeler

Power

Supply

If

the

labeler

power

supply

fails,

follow

the

steps

below

to

replace

it.

Be

sure

to

note

the

direction

of

rotation

before

you

remove

the

fan

so

that

you

can

reinstall

it

correctly.

1.

2.

Turn

off

the

2500

and

remove

the

power

cord.

Disconnect

the

three

AC

input

cables

on

the

right

side

of

the

power

supply

assembly.

3.

Disconnect

the

two

output

cables

on

the

left

side

of

the

power

supply

assembly.

4.

Use

a

3/32-inch

hex

wrench

to

remove

the

two

mounting

screws

from

the

back

panel

of

the

2500.

5.

6.

Carefully

lift

out

the

labeler

power

supply

assembly.

Install

the

new

labeler

power

supply

assembly,

reconnect

the

cables,

and

reinstall

the

mounting

screws.

System

Fan

Replacement

This

procedure

describes

the

steps

required

to

remove

and

replace

the

system

fan.

Replacing

the

System

Fan

If

the

system

fan

fails,

follow

the

steps

below

to

replace

it.

1.

2.

3.

4.

Turn

off

the

2500

and

remove

the

power

cord.

Remove

the

four

7/64-inch

hex

screws.

Carefully

lift

out

the

system

fan.

Install

the

new

system

fan

and

reconnect

the

power

cable.

Controller

Board

Replacement

This

procedure

describes

the

steps

required

to

remove

and

replace

the

controller

board.

Replacing

the

Controller

Board

If

the

controller

board

fails,

follow

the

steps

below

to

replace

it.

Make

sure

you

observe

all

static

safety

precautions.

1.

2.

Turn

off

the

2500

and

remove

the

power

cord.

Note

the

positions

and

polarities

of

all

of

the

cables

connected

to

the

controller

board

before

you

disconnect

any

of

the

cable

connectors.

3.

Disconnect

all

of

the

cable

connectors.

ProMaster

2500

User

Manual

7-21

Repair

and

Replacement

Procedures

CAUTION:

Cover

the

power

supply

assemblies

in

the

base

of

the

2500

with

a

large

sheet

of

paper

to

catch

any

mounting

hardware

(screws,

washers,

and

nuts)

that

might

otherwise

fall

onto

the

power

supply

assemblies

as

you

work

If

a

piece

of

mounting

hardware

is

accounted

fbr

when

you

install

the

new

controller

board,

do

not

turn

on

the

2500

until

you

have

located

Se

missing

piece

of

mounting

hardware.

If

a

screw,

washer,

or

nut

contacts

one

of

the

2500's

base

assemblies,

an

electrical

short

could

occur

when

you

turn

on

the

2500,

resulting

in

severe

damage

to

the

2500.

4.

Use

a

1/

4-inch

hex

nut

driver

to

remove

the

ten

nuts

holding

the

controller

board

to

the

front

inner

wall

of

the

base

of

the

2500.

5.

Lift

the

controller

board

straight

up.

Note:

Eac/i

of

the

mounting

screws

under

the

controller

board

has

a

nylon

spacer

on

比

Do

not

remove

these

spacers

from

the

mounting

studs.

6.

Place

the

controller

board

on

an

antistatic

mat

or

bag.

7.

Transfer

the

firmware

from

U15

and

U43

(unless

new

firmware

is

specifically

issued),

as

well

as

the

U16

EEPROM,

to

the

new

controller

board.

8.

Install

the

new

controller

board.

Note:

Refer

to

the

controller

board

wiring

diagram

in

Appendix

C.

Beam

Assembly

Component

Replacement

These

procedures

describe

the

steps

required

to

remove

and

replace

the

beam

assembly

components.

Replacing

the

Flex

Coupler

If

the

flex

coupler

is

damaged,

follow

the

steps

below

to

replace

it.

1.

Turn

off

the

2500

and

remove

the

power

cord.

2.

Remove

the

beam

traverse

motor

as

described

on

page

7-15,

but

do

not

remove

the

cables.

3.

Use

a

7/

64-inch

hex

wrench

to

remove

the

set

screw

on

the

left

side

of

the

flex

coupler.

(The

flex

coupler

is

attached

to

the

end

of

the

lead

screw.)

4.

Remove

the

flex

coupler.

5.

Attach

the

new

flex

coupler

to

the

beam

traverse

motor

shaft.

Tighten

with

a

torque

wrench

and

a

right-side

screw

using

24

inch-pounds

of

torque.

CAUTION:

Over-

tigh

tening

the

set

screw

can

damage

the

flex

coupler.

7-22

ProMaster

2500

User

Manual