Leader LBO-5880 Manuale utente

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Leader

LBO

-

5880

LBO

—

5880

PROGRAMMABLE

OSCILLOSCOPE

INSTRUCTION

MANUAL

[Notice]

This

manual

is

subject

to

change

without

prior

notice.

Also,

the

program

stored

in

internal

memory

(ROM)

of

this

programmable

oscilloscope

is

used

to

govern

its

basic

operations

and

may

be

updated

without

prior

notice

to

reflect

product

im-

provements

or

changed

specifications.

The

version

number

of

the

ROM

program

can

be

determined

from

Section

10.10

of

this

manual.

TABLE

OF

CONTENTS

INTRODUGTION.

4522.

86255

fedccge

Gta

reer

e

bs

eee

dues

det

nesters

tga

ha

8

1

FEBAT

URES

3:

feta

hk

ection

s

«aginst

Gee

hoard

oe

Sg

dN

WEP

away

egies

1

2.1

Oscilloscope:

Section

vac

Petey

$e

Aa

eRe

S

ae

SES

Sees

Ma

SE

1

2.2

Memory

Section...

2

SPECIFICATIONS

.....

2

Sel

Oscilloscope

Section

.

2

3.2

‘Memory:

Section”,.-)s:3

2

ete

xi

iay

Secaare

ds

Col

Phe

Tete

hele

wok

4

3.3

Miscellaneous:

.iis.0¢4.ns08

F.6d

sf

s

Nees

a

Sieten

gw

aenisinge

©

ao

eR

Asb

aT

drs

ards

5

BLOCK

DIAGRAM....

6

PANEL

DESCRIPTION

:

7

5.1

General

Appearance

engine

Mhewale

nee

tarts

Wend

7

32)

Front

Panel

...........0.044

8

5.3

Power

Supply/CRT

Display

Block

.

az

5.4

Program

Controller

Block

......

wil

54:1

Operating

modes

~

s3.0>2.a

Soe

oven

dale

Sean

ease

gape

esate

12

54:2,

-CEOHOP

a5

ic

feng

tleliteseta

as

aoaidia

2G.

sha

eaedie

2e/C

ies

Su

RS

AES

12

5.5

Vertical

Amptifier

.

214

5.6

Horizontal

Amplifier

19

Suh

Trigger

Block

.....

3

rea

5.8

Rear’Patiel

23.

tc

snes

foen8<

‘yn

a

tistiade

Rasta

Wainata

Mitge

eas

ace

es

Oe

eee

27

OPERATING

NOTES

6.1

Observe

Supply

Voltage

Rating

...

6.2

Do

Not

Apply

Excessive

Input

Voltage

JN

g

6.3

Do

Not

Use ina

Strong

Magnetic

Field

.......

atte

6.4

Avoid

Using

in

a

High

Temperature,

Damp

Place...

0.0...

0.0.

sce

e

ee

eee

es

6.5

INotes:on-

ORT.

08

4

ottss

tk

So

aalne

tntabtiens,

dials

Bias

Siete

SR

eter

DE

6.6.

Turn

Power

Switch

Off

Before

Connecting

Bus

Cables

.

6.7

Notes

on

Connecting

to

a

Transformer-less

Device

.......

6...

e

cece

6.8

Notes'on

Shutdowt

3

s.).05

fsa

ea

See

eee

a

Soe

ee

eae

Roe

eee

Be

6.9

Notes

on

Memory

Write

Protection

PROBE

TYPES

AND

SELECTION

............-

BASIC

OPERATIONS...

......

05.2.6.

60-064

cae

8.1

Displaying

a

Horizontal

Trace

GENERAL

OPERATIONS

2.2.22...

ccc

cect

eee

eee

e

eee

e

eee

eenenneees

91

Setting

BEGIN

and

END

Addresses

9.2

Writing

to

Memory

..

9.3

Editinig-Prograins

13

ict

tGqasit

dias

ate

Ph

a

aeduieiae

ae

seated

Saale

9.3:1

Changing

only

control

settings,

such

as

POSITION

and

VARIABLE

...............

9.3.2

Altering

modes

other

than

controls

.

:

7

94

Editing

Program

Addresses:....2.200

ccc

ca

cae

ec

ewe

eee

aee

eed

oa

ba

te

9.4.1

DELETE

(Deletion):

ok

sace

sh

wabd

nis

tie

th

Wookie

Seales

Ov.

9.4.2.

INSERT

(Insertion)...

....

2.02.50

e

eee

eee

9.5

9.6

9.7

9.8

9.9

9.10

9.13

9.14

9.15

9.16

9.4.3.

EXCHANGE

INC

(Exchanging

with

the

next

address)............

38

944

EXCHANGE

DEC

(Exchanging

with

the

previous

address}

........

38

Manual

Operations

25s

02

2i:esa<eceus:

otistb

ict

BBs

His

Oe

CAS

EAN

DEES

39

Program

Transfer

(SAVE/LOAD)...........

000

cece

cece cece

eet

e

eens

39

9.6.1

Transferring

the

entire

program

from

address

0

to

address

99

..40

9.6.2

Transferring

an

address

range

..

9.6.3

Transferring

an

address

range

with

an

offset

964

Transferring

only

one

address.........

Error

Massages

during

Program

Transfer

.

x

:

:

i

LOAD/SAVE

Data

Format

Description

..........0000

ccc

cecc

cece

eeeuee

9.8.1

Data

format

(General)

.........

020.

e

cece

ce

cece

nce

eneees

9.8:2:.

“Signal

tine

description

....

2

.¢é

40

Ss.3.eee

doles

we

cabin

ed

dis

Chew

adiee

9.8.3

Data

format

(Detailed)...

00...

0...

cc

ccc

crete

ere

eetanee

9.8.4

Saving

and

loading

data

by

microcomputer

Printing:

Programs

(PRINT)

‘ssicis/ssicadocls

viaceecness

a9

dad

tasnve

)4

i020

eb

ses

ang

asetolos

9.9.1

Setap

<ccs2adyetane

9.9.2.

BEGIN-END

printing

.

9.9.3

SINGLE

printing

...

9.9.4

Print

applications

.

9.9.5

Print

codes....

..

9.9.6

Printing

codes

table

.

3

9.9.7

Printing

bus

connector

pin

arrangement

.

.

:

REMOTE

(Address

Remote

Control)

2.0.0.0...

0202

e

cece

eee

eee

eee

9.10.1

Signal

line

definitions

6.0.0.0...

ec

eee

eee

eee

eee

58

9.10.2

Controlling

with

binary

code

9.10.3

Controlling

with

BCD

(binary

coded

decimal)

code

.....-.........

$9

9.10.4

Notes

on

switching

with

a

digital

switch

or

the

like

.............0.

60

‘9°10,5.

Parallel:

operation

sis

toc.

ors-cis-a

Sted

eaiews

aae

Uactiate

eee

wee

ea

reeled

Address

Data

Output

9.11.1

Signal

line

definitions

9.11.2

When

normal

address

data

is

required

9.11.3

Address

data

code

table

..........

External

Control

(EXT

CONTROL)

Procedures

: :

SID

Ty

Signal

ine

Gefinitions

isis

estos,

oe

apse

a

Seige

hoses,

nese

eelae

es

9.12.2

YO

BUS

-internal

circuit

diagram

....

00...

eee

eee

9.12.3

Example

of

an

external

circuit

and

usage

..

2.2.00...

00000000

eee

66

AUTO

ING

S

asses

ds

chee

ils

eels

reece

day

Sardge

Sealed

wae

a

adie

terete

68

EXT

INC,

DEC,

and

BEGIN...

2.0.0

ce

ee

cee

tec

ence

cena

etes

69

9.14.1

INC,

DEC,

and

BEGIN

by

EXT

INC

INPUT

...............--

69

9.14.2.

INC,

DEC,

and

BEGIN

via

1/0

BUS........

69

9.14.3.

INC,

DEC,

and

BEGIN

by

PC

board

connector

atl

Recalling

Program

[ABORT]

+

[END]

...............

Memory

Write

Protection

.

.

es

9.16.1

Setting

write

protection

..

9.16.2

Resetting

write

protection

.

.

9.16.3

Checking

write

protection

status

2.0.2.0.

ccs

13:

10,

It,

12.

13.

CHECKING

FUNCTIONS

.

10.1

Automatic

Checks

.

10.2

I/O

BUS

Check

FUNC

3

+

10.3.

OPERATING

MODE

Switch

Check

[FUNC

3]

+

10.4

Memory

Control

Check

FUNC

3]

+

10.5

I/O

PORT

Check

FUNC

3|

+

10.6

7-segment

LED

Check

[FUNC

3]

+

10.7

Oscilloscope

Control

Key

Check

FUNC

3]

+

10.8

Printer

Bus

Check

{FUNC

3]

+

10.9

Audible

Alarm

and

Blanking

LED

Check

[FUNC

3]

+

10.10

Program

ROM

Version

Number

Display

FUNC

3]

+

O.L1

Printing

Code

Table

{FUNC

2]

+

0.12

[PTP]

Switch

Check

FUNC

2]

+

0.13

External

Osciiloscope

Control

FUNC

2]

+

10.13.1

Signal

line

definitions

.....

0.6...

02.

cee

etc

c

eee

eens

10.13.2

Application

of

external

data

oscilloscope

control...

2.6...

ec

eee

OPERATION

CHART

AND

LED

DISPLAYS

ERROR

MESSAGES........-...0-0000

+

2.1

Error

Message

Classifications

.

2.2

Error

28.....

2.3

Error

Codes

PRINTING

EXTERNAL

CONTROL

(EXT

CONTROL

DATA)

FUNC

3}

+

[BEGIN]

or

[END]

..........

3.1

BEGIN-END

Printing

[FUNC

2]

+

3.2.

SINGLE

Printing

FUNC

2]

+

13:3

Print:

Applications”

sic

v

c.s.2.c'

es

ee

ale

eee

gd

aiae

a

hse

ge

oleh

See

eae

ieiaie

Bate

aS

1.

INTRODUCTION

‘The

LBO-5880

is

a

dual

trace,

delayed-sweep,

programmable

oscilloscope

that

allows

all

scope

mode

settings.

This

includes

variable

controls

which

are

easily

stored

in

a

100-address

internal

memory

and

can

be

recalled

whenever

needed.

It

features

5

mV/div

(30

MHz)

and

1

mV/div

(20

MHz:

MAG

X

5),

and

a

maximum

sweep

rate

of

20

ns/div

(MAG

X

10),

with

a

6-inch

rectangular

metal-back

CRT

with

a

high-brightness,

internal

graticule.

The

waveform

clamping

function

of

the

LBO-5880

and

its

ability

to

set

two

marker

cursors

for

waveform

amplitude

adjustment

provide

an

ideal

measuring

instrument

for

use

in

the

pro-

duction

and

servicing

of

TV

sets

and

VTRs.

2.

FEATURES

2.1

Oscilloscope

Section

The

6-inch

rectangular

CRT

with

an

internal

graticule,

supported

by

regulated

high-

acceleration

voltage

power

supplies,

yields

accurate,

error-free

measurement

reading.

The

metal-backed

CRT

also

offers

added

intensity,

assuring

adequate

brightness

for

delayed

sweeps.

©

Scale

illumination

and

beam

rotation

functions

are

also

provided.

A

single-key

selection’

of

high-sensitive

1

mV/div

(20

MHz)

facilitates

the

medsure-

ment

of

ripples

in

regulated

power

supplies

and

weak

signals

in

biological

and

other

research

activities.

The

delayed

sweep

function,

independent

A

and

B

trigger

selection

function,

and

separate

external

trigger

input

terminals

support

a

wide

range

of

observations.

The

maximum

sweep

rate

can

be

quickly

magnified

to

20

ns/div

by

the

10

(times)

magnifier,

thus

enabling

the

disply

of

30

MHz

waveforms

in

six

sweep

periods

on

the

screen.

The

ALT

trigger

function

yields

static

waveforms

of

two

types

of

signals

with

different

timing

relations.

A

built-in

synchronous

sampling

circuit

eases

synchronization

with

TV

composite

video

signals.

Since

the

vertical

(VIDEO-V)

and

horizontal

(VIDEO-H)

sweep

periods

are

selectabie

regardless

of

the

TIME/DIV

switch

setting,

the

waveform

in

the

horizontal

sweep

period

can

be

synchronized

and

observed

with

the

vertical

sweep

period.

Variable hold-off

time

enables

video

signals

and

pulse

strings

from

computers

(such

as

digital

word

pulses)

to

be

observed

in

stabilized

periods.

The

B

ENDS

A

function

lessens

flickering

during

magnified

delayed

sweeps.

ADD

and

CH-2

polarity

selections

make

it

possible

to

observe

the

sum

of

difference

between

two

signals

and

to

also

display

an

accurate

picture

of

push-pull

signals.

Signals

applied

to

CH-1

can

be

isolated

from

the

vertical

preamp

via

a

buffer.

Since

this

output

is

about

0.1

V

p-p

per

division

on

the

screen,

the

LBO-5880

can

be

used

as

a

super-high

sensitive

counter

when

this

output

is

connected

to

a

counter.

The

LBO-5880

can

be

switched

by

a

one-key

operation

to

an

X-Y

oscilloscope

having

CH-1

as

the

X-axis

and

CH-2

as

the

Y-axis.

Extensive

use

of

custom

ICs

establishes

enbanced

reliability.

The

GND

TEST

switch allows

checking

the

GND

level

at

a

single

touch,

independently

of

the

program.

Each

function

mode

of

the

oscilloscope

is

constantly

displayed

on

a

panel

LED.

This

LED

dispiay

can

be

suppressed

by

a

switch.

2.2

Memory

Section

3.1

The

memory

addresses

are

organized

into

100

steps,

numbered

from

0

to

99.

The

stored

program

is

protected

by

a

battery

backup.

The

BEGIN

and

END

addresses

can

be

freely

set

from

address

0

to

adress

99,

so

that

the

program

stored

within

this

range

can

be

recalled

for

use

in

a

product

tuning

line,

for

example,

as

often

as

desired.

The

BEGIN

and

END

addresses,

once

set,

are

pro-

tected

by

backup

memory.

Programmed

data

can

be

transferred

to

another

LBO-5880

(SAVE)

or

data

can

be

received

from

another

LBO-5880

(LOAD).

Program

insertion,

deletion,

and

exchanging

are

provided

as

memory

editing

functions

to

simplify

program

editing

to

meet

changing

process

requirements.

All

oscilloscope

functions,

including

variable

controls,

are

programmable,

with

the

exception

of

focus,

astigmatism,

rotation,

and

illumination.

Variable

data

can

also

be

stored

as

independent

data,

ranging

from

address

0

to

address

99,

Whenever

an

operator

error

occurs,

the

corresponding

error

number

is

displayed

to

alert

the.

operator.

In

this

way,

continued

use

of

the

oscilloscope

will

be

inhibited

until

the

error

is

recovered.

Program

contents

can

be

printed

on

an

external

printer.

The

INC,

DEC,

and

BEGIN

functions

can

be

remote-controlled

by

attaching

the

op-

tional

control

box

(LBO-5880-03)

to

the

front

panel

EXT

INC

INPUT

jack.

The

LBO-S880

can

be

interlocked

with

an

external

instrument

since

its

addresses

can

be

controlled

with

externally

supplied

binary

or

BCD

codes.

During

LBO-5880

memory

access,

binary

and

BCD

addresses

code

signals

are

externally

supplied

tor

the

external

device

to

be

able

to

read

the

address.

As

a

64-bit

(8

bits

X

8)

external

control

memory

is

provided

and

simple

external

circuit

is

installed,

the

64

bits

can

be

externally

controlled.

Since

the

oscilloscope

functions

can

be

selected

by

transmitting

data

from

an

external

controller

(such

as

a

microcomputer),

the

LBO-5880

can

be

totally

operated

as

a

remote-controlled

oscilloscope

(including

variable

controls.

)

Hardware

self-diagnostics

simplifies

the

process

of

checking

for

interna!

errors.

Memory

write

protection

prevents

inadvertent

deletion

of

important

programs.

3.

SPECIFICATIONS

Oscilloscope

Section

CRT

display

150

mm

rectangular,

internal

graticule

Metal-backed,

%

scale

Acceleration

voltage

7kV/Z

kV

regulated

Effective

display

area

8X

10

div

(1

div

=10

mm)

Beam

rotator

Adjustable

from

front

pane]

Scale

illumination

Intensity

modulation

Bianked

by

TTL

level

signals

in

the

specifications

below,

tatings

marked

with

*

are

guaranteed

values

at

+15

~

+35°C.

Vertical

Amplifier

(for

both

CH-1

and

CH-2)

Deflection

sensitivity

5

mV/div

~

2

V/div

(entire

bandwidth)

1

mV/div

(20

MHz:

MAG

X

5

ON)

1-2-5

sequence,

9

steps,

and

continuous

adjuster

Calibration

accuracy

*+3%

(£5%:

MAG

X

5

ON)

Frequency

characteristics

Rise

time

input

impedance

Input

coupling

Maximum

input

voltage

Display

modes

Polarity

invert

CH-I

output

Cursors

Pedestal

clamps

of

composite

video

signal

Horizontal

Amplifier

Sweep

Method

A

sweep

time

B

sweep

time

Calibration

accuracy

Hold-off

variable

Setting

accuracy

of

delay

time

position

Magnifier

Maximum

sweep

time

Synchronization

signal

*DC

~

30

MHz

(REF.

8

div)

--

3

dB

{DC

~

20

MHz

(REF.

8

div)

--

3

dB:

MAG

X

5

ON)

AC

coupling:

Low-path

10

Hz

~

—

3

dB

*12

ns

(18

ns:

MAG

xX

5

ON)

1

MQ

+

1.5%,

35

pF

within

+

5

pF

(Tolerance:

within

+

2

pF)

AC,

GND,

DC

200

V

(p-p

+

DC)

CH-1, CH-2,

ALT,

CHOP,

ADD,

X-Y,

CH-1

CURSOR

ON,

CH-2

CURSOR

ON

CH-I

INVERT,

CH-2

INVERT

Approx.

0.1

V/div

(into

S02)

DC

~

30MHz,

~

3

dB

Upper

and

lower

cursors

(Only

one

trace

can

be

viewed

while

cursors

are

displayed.)

+

Clamp:

Clamped

to

+

sink

waveform

pedestals.

—

Clamp:

Clamped

to

—

sink

waveform

pedestals.

Trigger

sweep,

automatic

trigger

sweep,

continuous

delayed

sweep,

and

trigger

delayed

sweep

0.2

ys/div

~

200

ms/div

1-2-5

sequence,

19

steps,

and

continuous

adjuster

0.2

us/div

to

200

ms/div

1-2-5

sequence,

19

steps,

and

continuous

adjuster

*x

3%

(for

both

A

and

B)

One

sweep

or

more

approx.

+

3%

X

10+

5%

20

ns/div

(MAG

X

10

ON)

source

A:

LINE,

CH-t,

ALT,

CH-2

and

EXT.

source

B

:

B

START

AFTER

DELAY,

CH-1,

ALT,

CH-2

and

EXT

Synchronization

{coupling

A”

=]

AC,

HF-REJECT,

LF-REJECT,

DC,

VIDEO

H

and

VIDEO

V.

source

B

:

AC,

HF-REJECT,

LF-REJECT,

DC,

VIDEO

H

and

VIDEO

V

Synchronization

slope

A

+,

—

»

B

+-—

Synchronization

sensitivity

Bandwidth

INT.

EXT.

30

Hz

~

10

MHz

0.5

div

0.2

Vp-p

NORM

2

Hz

~

30

MHz

1.5

div

0.6

Vp-p

30

Hz

~

10

MHz

0.5

div

0.2

Vp-p

AUTO

30

Hz

~

30

MHz

15

div

0.6

Vp-p

TV

synchronization

X-Y

mode

Sensitivity

X-axis

bandwidth

X-Y

phase

Calibrator

Output

voltage

Frequency

3.2.

Memory

Section

Program

address

Internal

memories

Built-in

battery

Synchronizing.

composite

video

signals.

The

slope

switch

is

selected

according

to

video

signal

polarity.

{X

=

CH-1,

Y

=

CH-2)

Same

as

the

Vertical

Amplifier

DC

or

10

Hz

~

|

MHz

~

3

dB

(REF.

8

div)

Less

than

3°

at

100

kHz

0.5

Vp-p,

*+

2%

Approx.

|

kHz,

square

wave

0

~

99

(100

addresses)

2,048

words

by

8

bits

static

CMOS

RAM

X

5

(Program

backup,

four,

8K

bytes

Internal

system,

one,

2K

bytes)

NiCd

backup

battery,

3.6

V

Address

display

EXT

address

control

Operating

modes

Provides

one-month’s

memory

backup

when

fully

charged

at

90

mAh.

The

built-in

battery

is

trickle-

charged

during

system

operation

and

can

be

fully

charged

over

two

days

(for

about

25

hours).

7-segment

two-digit

LEDs

display

addresses

0

~

99.

The

address

signals

during

memory

access

can

be

trans-

ferred

to

the

rear

panel

1/O

port

in

binary

BCD

cords.

‘Address

INC,

DEC,

and

BEGIN

can

be

remote-

controlled

by

using

an

optional

hand

switch

(LBO-

5880-03

control

box).

SW

mode

Major

functions

SET

BEGIN

and

END

address

setting,

setting/resetting

of

memory

write

protection

PROG

Program

entry,

insertion,

deletion,

exchanging,

recall,

and

a

sample

program

call

|

CHANGE

VAR’S

Alteration

of

variable

knobs

data

FUNC

3

RUN

PROG

Program

call

MANUAL

Operation

as

an

ordinary

oscilloscope

without

using

menor

|

REMOTE

Control

by

externally

supplied

address

data

SAVE

Program

transfer

to

another

LBO-5880

LOAD

Program

transfer

from

another

LBO-5880

PRINT

Printing

of

program

data

on

an

external

printer

FUNC

1

Automatic

address

incrementation

FUNC

2

External

oscilloscope

control,

and

checking

programs

Checking

programs,

and

other

options

Memory

functions

External

connectors

1/O

bus

1/0

port

Printer

3.3

Miscellaneous

DC

fan

Supply

voltage

Power

consumption

Dimensions

and

weight

Accessories

[Options]

Printer

cable

Transfer

cable

Probe

Control

box

1/0

CARD

Can

be

memorized

for

all

switch

modes

(except

memory

control

SW,

GND

TEST

SW

and

LED OFF

SW),

CH-1

POS,

CH-2

POS,

H

POS,

A

TIME

VAR,

B

TIME

VAR,

DELAY

TIME

POSITION,

CH-1

VAR,

CH-2

VAR,

UPPER

CURSOR,

LOWER

CURSOR,

A

HOLD

OFF,

A

LEVEL,

B

LEVEL,

INTEN,

Each

variable

knobs

data

has

Resolution

!024

(10

bits).

24

pins

o

External

device

control

(An

additional

circuit

is

required:

8

bits

X

8,

64

bits

maximum)

©

Probe

selector

(LBO-5880-02)

©

GP-IB

(scheduled)

37

pins

©

Program

transfer

©

Address

output

©

Address

input

(address

control)

©

Oscilloscope

control

by

external

data

14

pins

©

Program

data

printing

(on

a

Centronix

compatible

printer)

DC

24V,

0.09A

LOOV

(also

changable

to

117V,

220V,

and

240V

by

voltage

selector)

85W

320(W)

X

200(H)

x

400(D),

Likg

FOS6)..

woes

ee

ae

Aa

ets

1

Instruction

manual

LC-2065

(1.5m)

LC-2066

(2m)

LP-16BX

LBO-5880-03

LC-2330

(Special

for

NEC

COMPUTER,

PC800!

MkII

&

PC8801MKH)