Equipment information

Leader LBO-5880 Oscilloscope
Manufacturer:
Leader
Model: LBO-5880
Date: 1998
Category: Measurement instruments
Group: Oscilloscope
Description: Programmble Oscilloscope
Information:
                                    The LBO-588CI 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.

T le 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 production and servicing of TV sets and VTRs.
2.	FEATURES
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 aluminized 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 measurement 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
connectors 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 display 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 selectable 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 enhanced 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 display can be suppressed
by a switch.

These manuals are available for the above equipment:

Leader -- LBO-5880 -- User Manual
File name: Leader-9522-Manual-Page-1-Picture
Manual Type: User Manual
Pages: 100
Size: 25.59 Mbytes (26836427 Bytes)
Language: english
Revision:
Manual-ID/Number: 98020.1
Date: 10 February 1998
Quality: Scanned document, all readable.
Upload date:
MD5: 863635ab5ff6b45d9f9c4012424d83d7
Downloads: 11 since 11 September 2017
Information:
INTRODUCTION .................................

FEATURES ......................................

2.1	Oscilloscope Section..........................

2.2	Memory Section..............................

SPECIFICATIONS.................................

3.1	Oscilloscope Section ..........................

3.2	Memory Section.............................

3.3	Others.....................................

BLOCK DIAGRAM................................

PANEL DESCRIPTION ............................

5.1	General Appearance..........................

5.2	Front Panel ................................

5.3	Power Supply/CRT Display Block...............

5.4	Program Controller Block.................... . .

5.4.1	Operating modes .....................

5.4.2	Editor..............................

5.5	Vertical Amplifier ...........................

5.6	Horizontal Amplifier.........................

5.7	Trigger Block ...............................

5.8	Rear Panel.................................

OPERATING NOTES..............................

6.1	Observe Supply Voltage Rating.................

6.2	Do Not Apply Excessive Input Voltage ...........

6.3	Do Not Use in a Strong Magnetic Field ...........

6.4	Avoid Using in a High Temperature, Damp Place . . . .

6.5	Notes on CRT ..............................

6.6	Turn Power Switch Off Before Connecting Bus Cables

6.7	Notes on Connecting to a Transformer-less Device . . .

6.8	Notes on Shutdown..........................

6.9	Notes on Memory Write Protection ..............

PROBE TYPES AND SELECTION...................

BASIC OPERATIONS..............................

8.1	Displaying a Horizontal Trace | ABORT 1 + 1 BEGINi
GENERAL OPERATIONS..........................

9.1	Setting BEGIN and END Addresses ........

9.2	Writing to Memory...........................

9.3	Editing Programs ............................

9.3.1	Changing only control settings, such

as POSITION and VARIABLE...........

9.3.2	Altering modes other than controls .......

9.4	Editing Program Addresses.....................

9.4.1	DELETE (Deletion)...................

9.4.2	INSERT (Insertion)...................
9.4.3	EXCHANGE INC (Exchanging with the next
address)............38

9.4.4	EXCHANGE DEC (Exchanging with the previous
address)........38

9.5	Manual
Operations...............................................39

9.6	Program Transfer
(SAVE/LOAD)....................................39

9.6.1	Transferring the entire program from address 0 to
address 99 .......40

9.6.2	Transferring an address
range................................41

9.6.3	Transferring an address range with an
offset.....................41

9.6.4	Transferring only one
address................................41

9.7	Error Massages during Program Transfer .
..............................42

9.8	LOAD/SAVE Data Format
Description...............................42

9.8.1	Data format
(General).....................................42

9.8.2	Signal line description
.....................................44

9.8.3	Data format
(Detailed).....................................46

9.8.4	Saving and loading data by
microcomputer.....................49

9.9	Printing Programs (PRINT)
........................................50

9.9.1	Setup
...................................................50

9.9.2	BEGIN-END printing......................................51

9.9.3	SINGLE printing.........................................54

9.9.4	Print
applications.........................................54

9.9.5	Print
codes..............................................56

9.9.6	Printing codes table
.......................................57

9.9.7	Printing bus connector pin
arrangement........................57

9.10	REMOTE (Address Remote
Control).................................58

9.10.1	Signal line
definitions......................................58

9.10.2	Controlling with binary
code................................59

9.10.3	Controlling with BCD (binary coded decimal) code
...............59

9.10.4	Notes on switching with a digital switch or the
like...............60

9.10.5	Parallel
operation.........................................60

9.11	Address Data
Output.............................................61

9.11.1	Signal line
definitions......................................61

9.11.2	When normal address data is
required..........................62

9.11.3	Address data code
table....................................63

9.12	External Control (EXT CONTROL)
Procedures........................64

9.12.1	Signal line
definitions......................................64

9.12.2	I/O BUS internal circuit diagram
............................ 65

9.12.3	Example of an external circuit and
usage.......................66

9.13	AUTO INC
....................................................68

9.14	EXT INC, DEC, and
BEGIN......................................69

9.14.1	INC, DEC, and BEGIN by EXT INC INPUT.................69

9.14.2	INC, DEC, and BEGIN via I/O BUS
........................69

9.14.3	INC, DEC, and BEGIN by PC board
connector...............71

9.15	Recalling Program | ABORTl + [ END
[............................... 72

9.16	Memory Write
Protection..........................................72

9.16.1	Setting write
protection.................................... 72

9.16.2	Resetting write protection
..................................72

9.16.3	Checking write protection
status............................. 73
10.	CHECKING
FUNCTIONS............................................

10.1	Automatic Checks
............................................

10.2	I/O BUS Check	f FUNC 31 + |lNC~|.........

10.3	OPERATING MODE Switch Check 1 FUNC 31 + [DEC [........

10.4	Memory Control Check	1 FUNC 3 + FlNC 10] .....

10.5	I/O PORT Check	| FUNC 3| + |E)EC 101.....

10.6	7-segment LED Check	[ FUNC 3) + jBEGIN [......

10.7	Oscilloscope Control Key Check	| FUNC 3~j + [END 1........

10.8	Printer Bus Check	I FUNC 3] + I WRITEl......

10.9	Audible Alarm and Blanking LED Check |FUNC 3[ + |
INSERT)......

10.10	Program ROM Version Number Display [FUNC 3| + |
DELETEl ....

10.11	Printing Code Table	[ FUNC 21 + flNCl ........

10.12	1 PTPl Switch Check	| FUNC 21 + [DEC| ........

10.13	External Oscilloscope Control	| FUNC 2 + | INC 101 .....

10.13.1	Signal line
definitions.....................................

10.13.2	Application of external data oscilloscope
control...............

11.	OPERATION CHART AND LED DISPLAYS............................

12.	ERROR
MESSAGES.................................................

12.1	Error Message
Classifications.....................................

12.2	Error
28......................................................

12.3	Error Codes .
.................................................

13.	PRINTING EXTERNAL CONTROL (EXT CONTROL DATA)

FUNC 2[ + 1 BEGINl or [ END ........

13.1	BEGIN-END Printing	| FUNC 21 + [END] ..................

13.2	SINGLE Printing	| FUNC 2] + [ BEGIN I.................

13.3	Print Applications
.............................................

14.	MAINTENANCE
...................................................
Leader-9522-Manual-Page-1-Picture
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