Leader 3803, LG 3803 Instruction Manual

LG 3803

8VSB/QAM SIGNAL GENERATOR

INSTRUCTION MANUAL

LEADER ELECTRONICS CORP.

TABLE OF CONTENTS

GENERAL SAFETY SUMMARY ............................................................................................. I

1. INTRODUCTION .............................................................................................................. 1-1

1.1 Scope of Warranty................................................................................................... 1-1

1.2 Operating Precautions............................................................................................. 1-1

1.2.1 Line Voltage and Fuse ................................................................................. 1-1

1.2.2 Maximum Input Voltage ............................................................................... 1-2

1.2.3 Reverse Voltage, Excessive Voltage ........................................................... 1-2

1.2.4 Backup of Control Settings .......................................................................... 1-2

1.2.5 Installation.................................................................................................... 1-3

1.2.6 Mechanical Shock........................................................................................ 1-3

1.2.7 About Network ............................................................................................. 1-3

2. SPECIFICATIONS ............................................................................................................ 2-1

2.1 Description .............................................................................................................. 2-1

2.2 Features .................................................................................................................. 2-1

2.3 Specifications .......................................................................................................... 2-2

2.3.1 Channel Coding Section.............................................................................. 2-2

2.3.2 RF Signal Generator.................................................................................... 2-2

2.3.3 Input/Output Signal Sources........................................................................ 2-2

2.3.4 C/N Generator Section ................................................................................ 2-3

2.3.5 BER Counter Section................................................................................... 2-3

2.3.6 External Interface......................................................................................... 2-4

2.3.7 Display Panel............................................................................................... 2-4

2.4 General Specifications............................................................................................. 2-4

3. PANEL DESCRIPTIONS .................................................................................................. 3-1

3.1 Front Panel.............................................................................................................. 3-1

3.2 Rear Panel .............................................................................................................. 3-4

4. LCD PANEL DESCRIPTION ............................................................................................ 4-1

4.1 Turning Power On and Starting Instrument ............................................................. 4-1

4.2 Screen Description.................................................................................................. 4-1

4.3 Menu ....................................................................................................................... 4-6

5. USING MENU...................................................................................................................5-1

5.1 CODING .................................................................................................................. 5-1

5.1.1 Source ......................................................................................................... 5-2

5.2 NOISE ..................................................................................................................... 5-4

5.3 CHANNEL ............................................................................................................... 5-5

5.4 LEVEL ..................................................................................................................... 5-6

5.5 BER......................................................................................................................... 5-7

5.5.1 SETUP......................................................................................................... 5-8

5.6 UTILITY................................................................................................................... 5-9

5.6.1 CONFIG....................................................................................................... 5-10

5.6.2 TCP/IP ......................................................................................................... 5-11

5.6.3 GPIB ADDRESS.......................................................................................... 5-12

5.6.4 PRESET GROUP ........................................................................................ 5-13

5.6.5 CF ACCESS ................................................................................................ 5-14

6. PRESET, GROUP ............................................................................................................ 6-1

6.1 Preset...................................................................................................................... 6-1

6.2 GROUP ................................................................................................................... 6-1

7. REMOTE CONTROL........................................................................................................ 7-1

8. GPIB ................................................................................................................................ 8-1

8.1 Specifications .......................................................................................................... 8-1

8.2 Interface Function.................................................................................................... 8-1

8.3 Interface Message Function.................................................................................... 8-2

8.4 GPIB Address.......................................................................................................... 8-2

8.5 Clear, Reset............................................................................................................. 8-3

8.6 REMOTE/LOCAL .................................................................................................... 8-3

8.7 Multiline Message Command .................................................................................. 8-4

8.8 Program Message Format....................................................................................... 8-4

8.9 Program Message Terminator ................................................................................. 8-4

8.10 Program Code Format............................................................................................. 8-4

8.11 Program Code List .................................................................................................. 8-5

8.12 Detail Program Code............................................................................................... 8-7

9. ETHERNET ...................................................................................................................... 9-1

9.1 Connection .............................................................................................................. 9-1

9.2 Operating with Personal Computer ......................................................................... 9-1

10. MAINTENANCE ............................................................................................................... 10-1

GENERAL SAFETY SUMMARY

■ To Avoid Personal Injury

It is recommended that only qualified personnel with technical knowledge use this
instrument only after reading and fully understanding all functions of the instrument
described this instruction manual.
This instrument is not designed and manufactured for consumers.
If you do not have enough knowledge on electricity, to avoid personal injury and prevent
damage to this product, please be sure to use this product only under the su-pervision of an
engineer who has sufficient knowledge about electronics.

■ Precautions on Contents

Should you find the contents in this manual and any of its technical terms confusing, please
feel free to contact your local Leader agent.

■ Symbols and Terms

Following terms and symbols indicate necessary warnings and cautions used in this
manual and on the product are there for safe operation.

＜Symbol＞

The sections where this symbol is marked in this manual or
instrument, if not correctly performed or practiced, could result in
personal injury or cause serious danger to the instrument.
Misuse could also produce unintentional movement to create an
operational impediment on the instrument or other products that
might be connected to it.
Be sure to refer to the safety precautions in this manual to safely
use the part of the instrument where the symbol is marked.

＜Term＞

Warning statements identify warning conditions that if
disregarded or not correctly performed or adhered to, could
result in serious personal injury or even loss of life.

＜Term＞

Caution statements identify warning conditions if disregarded or
not correctly performed or adhered to, could result in personal
injury or damage to the instrument.

WARNING

CAUTION

I

GENERAL SAFETY SUMMARY

Review the following safety precautions to avoid operator's injury and loss of life and prevent
damage and deterioration to this instrument. To avoid potential hazards, use this product as
specified.

WARNING

■

Warnings on the Cases and Panels of the Instrument

Operator should not remove any cases or panel for any reasons. If you touch inside the
instrument it could result personal shock or fire hazard. Refrain from spilling any liquid
on or inserting anything flammables or piece of metal into the ventilation of the instrument.
Such actions could cause fire, shock, malfunction and be an accident hazard while the
power is on.

■

Warnings on Power Line

● Make sure to connect only to the rated power line voltage. Excess voltage may

cause fire.

Confirm the voltage of the commercial power line before connecting the AC power
cord. The power frequency of the power line should be 50/60 Hz.

● Warning on the Power Cord

Use only the optional power cord that is attached to this instrument. The use of the
power cord other than that attached could cause fire hazard.
If the attached cord is damaged stop using it and contact your local Leader agent.
Should you use a damaged cord, it could cause a shock or create a fire hazard. When
you pull out the cord be sure to hold it by plug and pull from the socket not by holding
the cord wire.

■

Warning on Fuse

When the fuse is melted the instrument stops operation. If the fuse melted, turn off the
power switch and disconnect the power plug from the socket. If you change the fuse
while the cord is connected to the socket, it could cause a shock hazard. Only use the
specified type and rated current and voltage fuses.
If the cause for melting fuse is unclear or if you suspect there is damage to the instrument
or if you have no proper fuse at hand please contact your local Leader agent.

II

GENERAL SAFETY SUMMARY

WARNING

■

Warning on Installation Environments

● About the Guaranteed Operating Temperature Range

Operate the instrument between the temperature range of 0 to 40 °C. Operating the
instrument at higher temperatures could cause a fire hazard.
Rapid changes of temperatures from cold to warm can create internal moisture or
condensation and could damage the instrument. If there is a possibility of moisture
condensation allow the instrument to sit for 30 minutes without the power on.

● About the Guaranteed Operating Humidity Range

Operating humidity range is ≤ 85 % RH.
Do not operate the instrument with wet hands, This could cause a shock and fire
hazard.

● About the Operation in the Presence of Gasses

Operating the instrument in and near the presence or storage locations of flammable,
explosive gasses or fumes could create an explosion and fire hazard. Do not operate
the instrument anywhere near such environments.

● Avoid Insertions

Do not insert metals or flammable objects or drop liquid on or into the instrument. To
do so could cause fire, shock, malfunction and create a dangerous accident hazard.

■

Warning while Operating

While operating the instrument in smoke, fire, or a bad smell, occurs, turn off the
instrument at once for it could cause a fire hazard. When such a case occurs, turn off the
power switch and pull the plug of the cord from the plug socket. Contact your local Leader
agent after confirming there is no fire.

■

Warning about Ground

The instrument has a ground terminal to avoid electric shock hazard and to protect the
instrument from damage. Ensure that the product is properly grounded for safe operation.

III

GENERAL SAFETY SUMMARY

CAUTION

■

Caution on Input/Output Terminals

Input Terminals are rated with a maximum input. Do not supply an input over the specified
rating in the standard section of the instruction manual. Also, do not supply external
power to Output terminal, this could cause the instrument to malfunction.

■

Caution when Not to Using Instrument the for a Long Time

Make sure to disconnect the power cord from the socket when you do not use the
instrument for a long time.

■

Calibration

This instrument is produced under the strictest quality controls at the factory, but
accuracy may gradually deteriorate due to worn components.
Therefore, periodic calibration should be performed.
When service or calibration is required, contact your local Leader agent.

■

Routine Maintenance

Remove the power cord plug from the socket when cleaning the instrument.
Avoid the use of thinner or benzene solvents for cleaning cases, panels and knobs since
this might remove the paint or damage plastic surfaces.
Wipe cases, panels, and knobs lightly with a soft cloth damped with neutral detergent.
Do not allow water, detergent, or other foreign objects to enter the instrument while
cleaning.
If a liquid or metal object enters the instrument, it can cause electric shock or fire.

Please conform to the above warnings and cautions for safe operation. There are cautions in
each area of in this instruction manual, so please conform to each caution. If you have any
questions about this manual, please feel free to contact your local Leader agent.

IV

1. INTRODUCTION

Thank you for purchasing Leader’s measuring instruments.
Please read this instruction manual carefully to ensure correct and safe operation.
If you have any difficulties or questions on how to use the instrument after you have read this
manual, please feel free to contact your local Leader agent.
After you have read the manual, keep the manual in a safe place for quick reference.

1.1 Scope of Warranty

This Leader instrument has been manufactured under the strictest quality control
guidelines. Leader shall not be obligated to furnish free service during the warranty period
under the following conditions.

1. Repair of malfunction or damages resulting from fire, natural calamity, or improper
voltage applied by the user.

2. Repair of an instrument that has been improperly repaired, adjusted, or modified by
personnel other than a factory-trained Leader representative.

3. Repair of malfunctions or damages resulting from improper use.

4. Repair of malfunctions caused by devices other than this instrument.

5. Repair of malfunctions or damages without the presentation of a proof of purchase or
receipt bill for the instrument.

1.2 Operating Precautions

WARNING

1.2.1 Line Voltage and Fuse

Confirm that the power line voltage is correct before connecting the power cord.
The voltage range and fuse rating are indicated on the rear panel.
The instrument must be connected to the rated line voltage and line frequency of 50 Hz
to 60 Hz.
When replacing the fuse, turn the power switch off and disconnect the power cord from
the outlet.

When replacing the fuse, use the correct fuse that matches the line voltage.

Voltage Range Fuse Rating Leader Parts Number

90 to 250 V 2 A, time-lag 436 3580 013

1-1

CAUTION

1.2.2 Maximum Input Voltage

There is restriction when applying input signals.
Applying excessive voltage to the connector may result instrument damage.

Connector Allowable Input Voltage

REMOTE CONTROL
INC, DEC, RESET Pins

-0.5 V/+5.5 V

FREQ STD 10 MHz INPUT 2.5 Vp-p

SYNC, VALID, CLOCK, DATA -0.5 V/+5.5 V

CAUTION

1.2.3 Reverse Voltage, Excessive Voltage

Do not apply external voltage to the output connectors.
If the cable touches such as DC power source, internal attenuator may be burned-out.
Do not apply 5 Vp-p or greater signal to the output connector.
If ±2V or greater DC component is superimposed, block it using a capacitor.

1.2.4 Backup of Control Settings

This instrument retains the panel settings even when the power is turned off. The
setting can be recalled when the power is turned on.
When the instrument is left for five years without supplying power, the stored data may
be lost.

Notes on Backup Data

Data must be backed up properly since stored data may be lost or changed caused
by incorrect operation, malfunction, or maintenance. A notepad may be helpful in
some cases.

1-2

1.2.5 Installation

Do not use the instrument in the following environments.

• High temperature environments
Do not place the instrument under direct sunlight or near a heater (e.g., stove). Do not
move the instrument from cold to warm environment abruptly, it may cause
condensation.

Operating temperature range: 0 to 40 ˚C

5 to 40 ˚C (When Option 70 is installed.)

• High humidity environments
Do not place the instrument in the high humidity environment (e.g., bathroom, near a
humidor).

Operating humidity range: ≤85 % RH (without condensation)

• Dusty environments

1.2.6 Mechanical Shock

To prevent damage to the precise components used in this instrument, be careful not to
expose the instrument to other forms of severe mechanical shock.

1.2.7 About Network

The remote control capability operation via the Ethernet is confirmed only under the local
network environments; it is not guaranteed under other environments.

1-3

2. SPECIFICATIONS

2.1 Description

The LG 3803 8VSB/QAM Signal Generator, conforms to 8VSB (digital terrestrial TV in
USA System) and 64QAM/256QAM (CATV) standards, features a channel coding,
modulation, C/N generator, and up converter in a single package. Consequently, the
modulated signal covering VHF and UHF channels can be output.
Providing pseudo random signal (PN) and BER counter can perform BER measurement of
receivers and tuners with a signal unit.
In addition to the internal TS signal, the external MPEG-2 TS can be used to evaluate
video, and sound quality. Such powerful features are ideal for total evaluation of a
reception system.

2.2 Features

• All-in-one
This instrument features the signal generator capability and BER measurement
capability in a single package.
The BER function is used to measure the front-end section, the broadcasting MPEG-2
TS function is used to visually check entire system.
In addition to the digital terrestrial TV broadcasting, this instrument can also be used for
the CATV. Such features are ideal for the production line of STB and tuners.

• Arbitrary modulation system settings
The modulation system can be arbitrary set via the front panel controls. The QVGA
LCD graphically displays the setting conditions.

• Encoding/modulation MPEG-2 TS in realtime
The MPEG-2 TS applied from the DVB-ASI or DVB-SPI connector can be encoded/modulated in
realtime.

• 100 preset conditions
Up to 100 preset conditions can be stored in the memory.
Since the stored contents can be categorized into 10 groups, the preset mode is
convenient for inspection applications.

• Various options

• LG 3803-OP70 Moving Picture Option (Factory option)
With the HDD and DVD-ROM installed, a stream including HDTV content (i.e.,
requires large storage area) and long-time TS can be played back from the HDD.

• The BER measurement of Out Of Band in CATV systems can be performed by
connecting the LG 3803-01 Out Of Band Generator (sold separately).

2-1

2.3 Specifications

2.3.1 Channel Coding Section

(1) Broadcasting system Digital Terrestrial (ATSC A/53B)

CATV (ITU-T J.83 annex B)

(2) Modulation system 8VSB/64QAM/256 QAM

2.3.2 RF Signal Generator

(1) Frequency

Range 50 to 900 MHz
Resolution 1 kHz, set in frequency
Channel USA, KOREA
Accuracy ±0.4 x 10

-6

(2) Output

Range -100 to +13 dBm (into 50 Ω)
Resolution 0.1 dB
Impedance 50 Ω
Level Accuracy ±1 dB (at 0 dBm, C/N off)
Output Connector N type
Harmonics -30 dBc
Spurious -50 dBc

2.3.3 Input/Output Signal Sources

(1) Internal Signal

Pseudo Random Signal PN23
Still Picture Pattern Color bar, ramp, monoscope (＊1)
Screen Size
16:9 1920 x 1080i, 1280 x 720p, 704 x 480i (＊1)
4:3 704 x 480i (＊1)
Sound (Tone) 1 kHz (LR), 400 Hz (LR), 1 kHz (L) + 400 Hz (R) (＊1)

＊1: Specifications are subject to change without notice.

(2) DVB-ASI Input

Input Connector BNC
Input Impedance 75 Ω
Input Level 0.8 Vp-p
Baud Rate 270 Mbps

(3) DVB-SPI Input

Input Connector 25-pin D-sub
Input Impedance 100 Ω differential input
Input Level LVDS
Input Format MPEG-2 TS or BER count input, automatic selection

2-2

(4) ASI, SPI Input Specifications

Input Packet Format 188 bytes
Applicable Stream MPEG-2 TS (ISO/IEC 13818-1)
Input Data Rate 25 Mbps max.

(5) FREQ STD Input

Input Connector BNC
Input Impedance 50 Ω
Input Level 0.8 Vp-p
Input Frequency 10 MHz

(6) FREQ STD Output

Output Connector BNC
Output Impedance 50 Ω
Output Level +4 dBm
Output Frequency 10 MHz

(7) 4-Wire Serial BER Input

Input Connector BNC
Input Level LVTTL 3.3 V
Input Signal SYNC, VALID, CLOCK, DATA

(8) TS Clock Output

Output Connector BNC
Output Impedance 50 Ω
Output Level TTL
Output Frequency 8VSB 2.424083 MHz
64QAM 3.371294 MHz
256QAM 4.851338 MHz

2.3.4 C/N Generator Section

C/N Variable Range 0 to 31 dB
Setting Resolution 0.1 dB
On/Off Selectable

2.3.5 BER Counter Section

(1) Input Section

Packet Length 188 bytes
Input Connector DVB-SPI connector, serial input

(2) GO/NO-GO Function

Threshold Settings Upper and lower limits of BER
GO/NO-GO Indication Displays GO/NO-GO on the screen.

2-3

2.3.6 External Interface

(1) Memory Card Interface

Memory Card Compact flash card (CFA TYPE-I)
Function Updating firmware, changing internal TS-ROM

(2) ETHER Interface

Specifications 10BASE-T or 100BASE-TX
Function Setting this instrument, reading status

(3) GPIB

Specifications ANSI/IEEE Std 488.1-1987.
Function SH1, AH1, T8, L4, SR0, RL2, PP0, DC1, DT0, C0, E1

(4) USB Interface

Specifications USB1.1
Function For connection of external equipment for enhancing in the

future (Future support)

(5) Remote Control

Connector 24-pin Rectangular
57 LE-30240 (Amphenol)
Remote Function Recalling of preset memory (INC/DEC)
Input Level TTL

2.3.7 Display Panel

LCD 5.7” QVGA (320 x 240) TFT color

2.4 General Specifications

Environmental Conditions
Operating Temperature 0 to 40°C
5 to 40°C (OP70 installed)
Operating Humidity ≤85% RH (without condensation)
Spec-Guaranteed Temperature 10 to 35°C
Spec-Guaranteed Humidity ≤85% RH (without condensation)
Operating Environment Indoor use
Operating Altitude Up to 2000 m
Overvoltage Category Ⅱ
Pollution Degree 2
Power Requirements
Voltage 90 to 250 VAC, 50/60 Hz
Power Consumption 140 W max.
Dimensions and Weight
Dimensions 426 (W) x 150 (H) x 450 (D) mm
Weight 14 kg approx.
Accessory

Power cord..............................1

Instruction Manual ..................1

2-4

3. PANEL DESCRIPTIONS

3.1 Front Panel

○

18

○

14

○

13

○

11

○

4

○

3

○

21

○

2

○

6

○

9

○

8

○

10

○

12

○

5

○

16

○

17

○

15

○

19

○

20

○

7

○

1

Figure 3-1 LG 3803 front panel

○

1 POWER switch

Push this switch in to apply power. Release this switch for turning power off. The
setting conditions immediately before turning power off can be recalled.

○

2 LCD panel

Indicates the setting conditions in Graphical User Interface (GUI).

○

3 Function keys (F1 to F5)

Set functions. The functions are displayed on the LCD panel.

○

4 MENU keys

Set functions. Six keys are provided.

CODING Selects broadcasting system, input source, modulation parameter, etc.
NOISE Selects noise signal on/off. Sets the CN value.
CHANNEL Sets the RF output channel. The channel can also be set in frequency.
LEVEL Sets the output level.
BER Controls and sets the Bit Error Rate (BER).
UTILITY Sets the various setting.

○

5 USB connector

USB 1.1 connector
Connects an external equipment such as keyboards. (Future support)

○

6 Access lamp

Lights when this instrument is accessing the memory card

○

7.

3-1

○

7 MEMORY CARD slot

Only used when the memory card contents are upgraded or updated.

○

8 UP MENU key

While displaying the setting screen, pressing this key enters the current data, then returns
to the upper level by one.
Holding down this key for at least one second enters the current setting, then returns to the
top screen.

○

9 Ten key (0 to 9 . -)

Directly enter such numeric data as level, channel (frequency), CN. Press ENTER

○

10

key to enter data.

○

10 ENTER key

Enters numeric data set.

○

11 Arrow keys { ↑(INC), ↓(DEC), ← (BACK), → (NEXT)}

<↑, ↓keys>

・Increments and decrements numeric data {i.e., level, channel (frequency), CN}.
・Moves the arrow to the PID number to be selected in external input mode.
・Increments and decrements the PID value between 0 and F when data is input in

hexadecimal numbers.

Difference between Up (F2)/Down (F4) keys and ↑/↓ keys

F2, F4 keys Increments and decrements the value by preset step size.
↑, ↓ keys Increments and decrements the value by preset step size.
Holding down this key continuously changes the value.

< ←, → keys>

・Moves the arrow to the PID number to be selected in external input mode.
・When entering PID value (hexadecimal numbers):

pressing the → key enters the value at the current digit, then moves to the next digit.
pressing the ← key cancels the value at the current digit, then returns to the previous
digit.

○

12 ALL CLEAR key

Clears input data (i.e., numeric data, hexadecimal data).

○

13 PRESET display

Displays the last selected preset number.

○

14 ADDRESS key

Specifies the address to be stored or recalled.

○

15 STORE key

Stores the current setting in the address.

3-2

○

16 RECALL key

Recalls the setting conditions in the specified address.

○

17 ↑, ↓ key

Increments and decrements the specified address.

○

18 UNIT key (UNIT)

Selects either this instrument or OOB when the LG 3803-01 unit is connected.

○

19 REMOTE key (REMOTE)

Switches the remote control mode to local control mode. This key is disabled in local
control mode.

○

20 RF OUTPUT connector CAUTION

Outputs RF signal. Refer to Section 2.3.2, "RF Signal Generator" for specifications.

○

21 Option compartment

Compartment to install the Moving Picture Option (OP70).

3-3

3.2 Rear Panel

○

22 ○24

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33

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34

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27

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31

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32

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26

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31

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39

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23

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25

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28 ○29

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30

○35○

36

○

37

○

38

Figure 3-2 LG 3803 rear panel

○

22 FREQ STD 10 MHz INPUT connector

Accepts the external reference signal. Apply 10 MHz reference signal when operating
this instrument in synchronized with the equipment connected.

○

23 FREQ STD 10 MHz OUTPUT connector

Synchronizes other equipment.

○

24 Serial BER CLOCK signal input connector (BER SERIAL INPUT CLOCK)

Used for BER measurement in serial connection.

○

25 Serial BER SYNC signal input connector (BER SERIAL INPUT SYNC)

Used for BER measurement in serial connection.
＊This connector is only used when the "Serial (4 Wire)" is selected on the screen.

○

26 Serial BER DATA signal input connector (BER SERIAL INPUT DATA)

Used for BER measurement in serial connection.

○

27 Serial BER VALID signal input connector (BER SERIAL INPUT VALID)

Used for BER measurement in serial connection.
＊This connector is only used when the "Serial (4 Wire)" is selected on the screen.

○

28 TS clock output connector

Outputs the TS clock to synchronize the external TS input.

○

29 TS INPUT DVB-ASI connector

Accepts the external TS signal. Apply the TS in DVB-ASI format.

○

30 TS INPUT DVB-SPI connector

Accepts the external TS signal. Apply the TS in DVB-SPI format.

3-4

○

31 Cooling fans (Two places)

To prevent instrument damage due to overheating, do not block airflow through the
ventilation holes.
If the fan stops, the LCD panel displays alarm message.
Turn the instrument power off immediately, then contact your local Leader agent in this
case.

○

32 ETHER connector

Control connector for 10BASE-T or 100BASE-TX.

○

33 USB connector

Factory use only. Leave this connector open.

○

34 REMOTE CONTROL connector CAUTION

Used to up/down and return operations for the preset value.
Refer to Chapter 7 "REMOTE CONTROL."

35 GPIB connector

GPIB interface connector.

36 AC INPUT

AC power inlet. The accessory power coed should be used. The AC voltage range is 90
to 250 V.
Refer to Section 1.2.1, "Line Voltage and Fuse" for detail.

37 FUSE CAUTION

The mains fuse is installed. Use only the fuse of correct type and rating for replacement.
Refer to Section 1.2.1, "Line Voltage and Fuse" for detail.

38 GND terminal

Grounding terminal connected to the chassis of this instrument

39 Serial number plate

Instrument serial number. Provide this number when contacting us.

3-5

4. LCD PANEL DESCRIPTION

4.1 Turning Power On and Starting Instrument

Connect the accessory power cord between the AC inlet on the rear panel and the mains.
Press the POWER switch to turn power on for starting the system. Whit for about 45
seconds until the top screen (Status screen) is displayed. The setting conditions
immediately before turning power off will be recalled.

4.2 Screen Description

The screen display consists of the top screen and various setting screens. The
followings describe the typical screens.

<Top Screen>

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3

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2

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5

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12

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8

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7

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6

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1

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4

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9

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10

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11

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13

Figure 4-1 Top screen

1 Screen title Indicate the top (Status) screen.

2 Unit information Indicate the setting parameter of this instrument or OOB.

3 Group Displays the preset group number.

4 TS signal selection Selects the TS to be used.

5 Carrier modulation (Current) Displays the carrier modulation setting status.

6 Channel, frequency Displays the channel number when the RF signal is set in

channel.
Displays the frequency in units of MHz when the RF
signal is set in frequency.

7 Output level Displays the output level.

4-1

8 BER result display Displays the Bit Error Rate (BER) measurement value

and GO/NO-GO results based on the threshold values.

9 Interleave Displays "- - -" when the carrier modulation is 8VSB.

Displays the interleave length when the 64QAM or

256QAM is selected.

10 Country Displays the channel table: USA or KOREA.

11 C/N level Display the C/N level. "- - -" is displayed when the C/N is

set off.

12 Key lock Displays the panel key lock status.

13 Alarm display Display alarm status for cooling fan, TS input, reference

signal and OOB.

<< Key lock >>

Restricts the front panel key operations.

Off Enables all keys.
Part Disables all keys except the Address, ↑/↓(PRESET), and RECALL keys.
All Disables all keys.

<<About top screen>>

• The top screen displays the titles.
See each setting screen for detail.

• The top screen is displayed when one of the following operations are performed:

(1) Immediately after the power is turned on.
(2) UP MENU key is held down for at least one second.
(3) ADDRESS key is pressed.
(4) Preset status is recalled by using the RECALL key, or ↑ or ↓ key in the

PRESET group.

<< Setting/controlling on the top screen >>

• The following operations can be performed on the top screen.
Pressing the F5 key enables key lock mode.
Pressing the F4 key can playback/stop the TS when the Moving Picture Option
(OP70) is installed.
For other items, press the menu key, then set as required on the appropriate setting
screen.

4-2

<<Alarm display on the top screen>>

• The following alarm message is displayed on the top screen. Message is displayed
in red.

[FAN] Indicates cooling fan trouble. If this alarm is displayed, turn the

instrument power off, then contact your local Leader agent.

[TS IN] Monitors each input signal when SPI/ASI is selected as TS input. The

SPI input in BER measurement mode is also monitored.
The alarm is displayed in the following status:
(1) No signal is input.
(2) When the signal other than transport stream (MPEG-2 TS) is input.
(3) When five packets or more packets except 0x47 are continuously

received at the header byte position.

[F STD] Monitors the reference signal. The alarm is displayed in the following

status:
(1) No signal is applied.
(2) Input signal frequency exceeds the PLL lock range.
(3) Input signal level is lower than the acceptable level range.

[OOB] In case of the LG 3803-01 is incorrectly connected.

4-3

<Setting screen example "CODING">

○

14

○

15

○

16

○

18

○

17

○

16

○

15

○

14

○

16

○

18

○

17

Figure 4-2 Setting screen example (1)

14 Screen title, hierarchical
layer display Displays the screen title and hierarchical layer from the top

menu.

15 Unit information Indicate the setting parameter of this instrument or OOB.

16 Selection status Use the corresponding key when changing the settings. The

selected item is displayed in white character on the blue
background. Pressing the key sequentially selects the item.

17 Disabled function Items displayed in gray title is currently disabled or optional

functions.

18 Function Displays the functions assigned to the F1 to F5 keys.

When ">>>" is displayed on the bottom of the function display,
use the next hierarchical layer for settings.

4-4

<Setting screen example "LEVEL">

○

19

○

19

○

20

Figure 4-3 Setting screen example (2)

19 Numeric value display column Displays the current setting value.

When data is set by using the numeric keypad, the value
is displayed in white on the black background.
Press the ENTER key to enter data. The value is only
entered when the value is within the acceptable range.

20 Step display The numeric value can be sequentially updated in preset

steps displayed in the step size column.

Pressing the F2 (Up) or F4 (Down) key
increments/decrements the value preset by using the F3
key. The ↑ or ↓ key in the DATA ENTRY can also
be used as well.

<Operation procedure>
(1) Pressing either key in the MENU group enters the setting screen.
(2) To return to the upper hierarchical layer, press the UP MENU key. Press this key

repeatedly to return to the uppermost hierarchical layer.

(3) Holding down the UP MENU key for at least one second any hierarchical layer returns

to the top menu.

(4) There are two setting methods:

・For the items set on the CODING menu, data is entered when the UP MENU key is

pressed to return to upper hierarchical layer or to the top menu.

・For other items {level, channel (frequency), C/N, etc.}, data is directly entered when

the value or settings are changed.

4-5

4.3 Menu

The top screen only displays the current setting status; there is no setting items.
When changing the setting status, press the MENU key to display the setting screen.
The MENU key function is listed below:

CODING Selects the broadcasting system and modulation mode.

Selects the TS input source.
Sets the Interleave.
Selects the CW on/off.
(Refer to Section 5.1.)

NOISE Sets the CN level value.

Sets the CN addition on/off.
(Refer to Section 5.2.)

CHANNEL Sets the RF output channel (or RF frequency).

(Refer to Section 5.3.)

LEVEL Sets the output level.

(Refer to Section 5.4.)

BER Controls the BER measurement function.

Sets the threshold level for GO/NO-GO judgement.
(Refer to Section 5.5.)

UTILITY Sets the various setting
(Refer to Section 5.6.)

＊ To return to the top menu, hold down the UP MENU key for at least one second.

4-6

5. USING MENU

5.1 CODING

Pressing the CODING key in the MENU group enters setting screen.

Figure 5-1 Coding screen

This screen is used to select the modulation mode and TS signal, and to set items related
to channel coding.
To exit settings, press other key in the MENU, or hold down the UP MENU key to return to
the top screen (status display).

• Source (F1) Selects the input source. (Refer to Section 5.1.1.)

• Modulation (F2) Selects the broadcasting system or modulation mode.

• Interleave (F3) Selects the interleave mode. This key is only enabled when the
Modulation is set to 64QAM or 256QAM.

• CW (F5) Switches the output signal: modulated signal or carrier wave.

5-1

5.1.1 Source

The TS source can be selected by pressing the Source (F1) key on the Coding (L-1)
screen.

Notes on selecting TS_source

• The receiver is temporary unlocked when TS source (each pattern stored in the
ROM, PN, SPI, ASI) is switched since the coding circuit is reset.

• When the external TS (SPI, ASI) is selected, reception capability is disabled if TS
INPUT alarm lights on the top screen or TS exceeding allowable rate is input.

Figure 5-2 TS source selection screen

• TS Source (F2)
Selects the TS input to be used.

PN Pseudo random signal in PN23
ROM

Modulates and outputs the video and sound signals stored in

the ROM.
External <SPI> TS input to the SPI connector on the rear panel is used.
External <ASI> TS input to the ASI connector on the rear panel is used.
Internal TS of HDD on DVD is used when the Moving Picture Option

(OP70) is installed.

• Null Packet Filter (F4)
This key is only enabled when the External (i.e., SPI, ASI) is selected. The packet
with 0x1FFF PID is filtered off from the TS applied to the input connector.
Various carrier modulation capabilities can be increased by removing surplus null
packet.

• PCR Update (F5)
Channel coding is performed for the external TS applied.
The PCR should be rewritten to convert the rate. Set this function on in general.
Up to eight PCRs are rewritable for the external TS.

5-2

(1) Selecting PN

The random signal (PN23) can be output by setting the Source to PN on the TS
Source (L-2) screen.

(2) Selecting ROM Pattern

The pattern stored in the ROM (called ROM pattern) can be selected by setting the
Source to ROM on the TS Source (L-2) screen, then press the Pattern (F1) key.

Figure 5-3 ROM pattern selection screen

• Pattern (F3)
Selects the video pattern.

Color Bar Eight-color full field color bar pattern
Ramp Full field ramp pattern
Monoscope Monoscope pattern

• Video Format (F4)
Selects the size of patterns listed above.

1920 x 1080 (16:9)
1280 x 720p (16:9)
704 x 480i (16:9)
704 x 480i (4:3)

• Audio (F5)
Selects the sound pattern.

1 kHz (L, R) Tone signal (1 kHz for both left and right)
400 Hz (L, R) Tone signal (400 Hz for both left and right)
1 kHz (L) + 400 Hz (R) Tone signal (1 kHz for left, 400 Hz for right)

The pattern, pattern size, and sound can arbitrary be combined.

(3) Selecting External <ASI or SPI>

The TS applied to the ASI or SPI connector is used by setting the TS Source to
External on the Source (L-2) screen.

5-3

5.2 NOISE

Figure 5-4 C/N setting screen

• Up (F2) Increments the C/N value by preset step size within the
acceptable range.

• Step Size (F3) Sets the step size for Up and Down operations.

• Down (F4) Decrements the C/N value by preset step size within the
acceptable range.

• C/N Addition (F5) Sets C/N on/off.

The C/N value can be directly entered by using the numeric keypad, or changed by
using the↑,↓,Up (F2) and Down (F4) keys.

5-4

5.3 CHANNEL

Figure 5-5 Channel or Frequency setting screen

• Country (F1) Selects the channel tables of USA or KOREA.

• Up (F2) Increments the channel or frequency by preset step size within the

acceptable range.

• Step Size (F3) Sets the steps for Up and Down operations.

(＊Selectable only when frequency is set.)

• Down (F4) Decrements the channel or frequency by preset step size within

the acceptable range.

• Input Item (F5) Selects setting range and method of the RF frequency.

Air Channel Use to set channel directly.

USA: [2 to 83 ch], KOREA: [2 to 12, 21 to 83 ch]

CATV Channel Use to set CATV channel directly.

USA STD: [C2 to C135 ch]
USA IRC: [C1 to C135 ch]
USA HRC: [C1 to C135 ch]
KOREA: [C1 to C41 ch]

Fequency Sets the CHANNEL in frequency.

The CHANNEL or FREQUENCY can be directly entered by using the numeric keypad,
or changed by using the↑,↓,Up (F2) and Down (F4) keys.

5-5

5.4 LEVEL

Figure 5-6 Level setting

• Up (F2) Increments the level value by preset step size within the

acceptable range.

• Step Size (F3) Sets the steps for Up and Down operations.

• Down (F4) Decrements the level value by preset step size within the

acceptable range.

The LEVEL can be directly entered by using the numeric keypad, or changed by using
the↑,↓,Up (F2) and Down (F4) keys.

5-6

5.5 BER

Figure 5-7 BER setting and measurement

• BER Setup (F1) Sets the BER measurement conditions. Refer to Section 5.5.1.

• Up (F2) Increments the C/N or output level value by preset step size within

the acceptable range.

• Step Size (F3) Selects the steps for C/N or output level.

• Down (F4) Decrements the C/N or output level value by preset step size

within the acceptable range.

• Select (F5) Selects the item by pressing the ↑,↓, up (F2) or Down (F4) keys

in the DATA ENTRY group. This function enables only when the
C/N is set on.

The setting value can be directly entered by using the numeric keypad, or changed by
using the↑,↓,Up (F2) and Down (F4) keys.

Notes on using BER function

＊The BER measurement mode is only enabled under the following conditions:

PN is selected for TS Source.

5-7

5.5.1 BER SETUP

Figure 5-8 BER SETUP screen

• Interface (F2)
Selects the TS input for BER measurement.

Parallel Use the SPI connector.
Serial (2 Wire) Use both [CLOCK] and [DATA] connectors in the SERIAL

INPUT group.

Serial (4 Wire) Use all of four connectors in the SERIAL INPUT group.

• Value Input Select (F5)
Selects the item to be set.

Upper Sets the upper threshold value (close to 0) in GO/NO-GO

judgement mode.

Lower Sets the lower threshold value (close to 1) in GO/NO-GO

judgement mode.
(Settable range: 0.00E-0, 1.00E-9 to 9.99E-1)

Measurement Cycle The measurement cycle can be set in 0.1 second steps.

The values can be directly entered by using the numeric keypad.

(1) When no signal is input to the SPI connector or there is asynchronous error on the TS,

the alarm lights on the top screen.

(2) When measurement starts, the top screen and BER screen display the measurement

value. "GO" is displayed when measurement value is with the threshold value;
"NO-GO" is displayed for outside the threshold.

5-8

5.6 UTILITY

Figure 5-9 Utility screen

Software Version Displays the control software version. Provide the serial number

indicated on the rear panel and software number when contacting

us.
TS ROM Version Displays the ROM pattern version.
Installed Unit Displays the option installed.

• Config (F1)

Address of TCP/IP and GPIB is displayed. (Refer to Section 5.6.1)

• Pre. Group (F2)

There are 100 preset conditions (i.e., consisting of 10 groups, 10 conditions per group).
The range can independently be incremented and decremented for each group.

(Refer to Section 5.6.4)

• OOB Unit (F4)

Sets the LG 3803-01 unit (OOB) to enable or disable.

• Freq. STD (F5)

Selects the reference signal.

5-9

5.6.1 CONFIG

Figure 5-10 CONFIG screen

• TCP/IP (F1)

Sets the IP-Address, Subnet Mask and Default Gateway.

(Refer to Section 6.5.2)

• GPIB Adr. (F2)

Sets the GPIB Address. (Refer to Section 6.5.3)

5-10

5.6.2 TCP/IP

Figure 5-11 TCP/IP screen

• Item Select (F5)

Selects the item that inputs the numeric value.
The values can be directly entered by using the numeric keypad.

Notes on TCP/IP setting

＊The setting conditions will be recalled when the power is turned on.

5-11

5.6.3 GPIB ADDRESS

Figure 5-12 GPIB ADDRESS screen

• GPIB Adr. Up (F2) Increments the GPIB ADDRESS within the acceptable range.

• GPIB Adr. Down (F4) Decrements the GPIB ADDRESS within the acceptable range.

The setting value can be directly entered by using the numeric keypad, or changed by
using the↑,↓,Up (F2) and Down (F4) keys.

Notes on GPIB ADDRESS setting

＊The setting conditions will be recalled when the power is turned on.

5-12

5.6.4 PRESET GROUP

Figure 5-13 PRESET GROUP screen

• CF Access (F1) Save the PRESET DATA to the memory card and load it from

the memory card. (Refer to Section 5.6.5)

• Group No. Up (F2) Increments the Group No. within the acceptable range.

• Group No. Down (F4) Decrements the Group No. within the acceptable range.

• Begin/End Select (F5) Selects the item that inputs the numerical value of the beginning

and the end number.

The setting value can be directly entered by using the numeric keypad, or changed by
using the↑,↓,Up (F2) and Down (F4) keys.

5-13

5.6.5 CF ACCESS

Figure 5-14 CF ACCESS screen

Status The operation status of SAVE/LOAD to the memory card is

displayed.

• Preset to CF (F1) Save the PRESET DATA to the memory card.

• CF to Preset (F2) Load the PRESET DATA from the memory card to internal

memory.

5.7 Internal Settings

5.7.1 Setting Calendar

Change to the super user, then login with telnet. The ID and password are lg3803.
(Lowercase letters can only be used.)

data Enter month, date, hour, minute, and second as follows.

Example to set 2005/1/31 14:00:28

su (enter)
root (enter)
/work/script/hwdate 013114002005.28 (enter)
hwclock -- systohc -- localtime (enter)

5-14

6. PRESET, GROUP

6.1 Preset

Up to 100 setting conditions can be stored and recalled by using the front panel key.

• Storing Data
(1) Set the CODING, CHANNEL, LEVEL, etc.
(2) Press the ADDRESS key. The PRESET number LED brinks.
(3) Specify the address to store data by pressing the ↑ or ↓ key in the PRESET

column, or enter address by using the numeric keypad.

(4) When the address is directly set by using the numeric keypad, press the ENTER

key.

(5) Pressing the STORE key stores data.

There are two methods to recall the setting conditions:

• Direct recall

To recall the desired memory number, press the ↑ or ↓ key in the PRESET group.

• Specifying address
(1) Press the ADDRESS key. The PRESET number indicator LED brinks.
(2) Specify the address to store data by pressing the ↑ or ↓ key in the PRESET

column, or enter address by using the numeric keypad.
(3) Press the ENTER key to enter data.
(4) Pressing the RECALL key recalls data.

6.2 GROUP

Up to ten groups can be set. Preset data can easily be used by incrementing or
decrementing the preset range for each group.

• Setting group to be used
(1) Press the Pre. Group (F1) key on the UTILITY screen to enter group setting

screen.

(2) Press the Preset Group (F5) key to select the desired group number.

• Setting preset range
(1) Select the group number on the group setting screen.
(2) Press the No. Input (F2) key to enter preset number setting screen, then set the

Begin and End numbers.

＊The End number must be larger than the Begin number.

• Recalling preset data
(1) Press the ↑ or ↓ key, or the numeric keypad to specify the number to recall

data. Refer to Section 4.5.

＊ Use the preset number within the specified range in the group being set.

Otherwise, the preset number is canceled.

6-1

7. REMOTE CONTROL

This instrument can be remotely controlled (e.g., increments or decrements preset data) via
the REMOTE CONTROL connector.

(1) Major Function Increment, decrement, returning group top
(2) Connector 57LE-40240-7700 (DDK Ltd.) or equivalent
(3) Input Level TTL (Pull up to +3.3 V)
(4) Input Logic Negative logic
(5) Output Level TTL (GO/NO-GO), open collector (Alarm)
(6) Fan Out 1 each
(7) Output Voltage +12 V (Alarm)
(8) Output Logic Positive logic/negative logic (GO/NO-GO), negative logic (Alarm)
(9) Pin Assignments See Table 7-1

Table 7-1 Pin assignments

No. Name Input/Output No. Name Input/Output

1 INC Input 13 GO (Positive logic) Output
2 DEC Input 14 GO (Negative logic) Output
3 RETURN Input 15 NO-GO (Positive logic) Output
4 Reserve 16 NO-GO (Negative logic) Output
5 Reserve 17 Alarm Output
6 Reserve 18 N. C.
7 Reserve 19 N. C.
8 Reserve 20 N. C.

9 N. C. 21 N. C.
10 N. C. 22 N. C.
11 GND GND 23 GND GND
12 GND GND 24 GND GND

＊About REMOTE CONTROL connector

• Do not apply external voltage to the output pins except Alarm pin.

• All pins are pulled up to +3.3 V. When externally control this instrument, do not apply
voltage exceeding +5.0 V or negative voltages.

＊Recalling preset conditions via the REMOTE CONTROL connector

• The preset conditions between the Begin and End address can be recalled by using
the INC/DEC pins. The INC, DEC, and RETURN pins are Low active. Assert for at
least one second.

• After setting is performed, wait for at least one second for the next setting.

＊GO/NO-GO output pins

• Outputs TTL High or Low for GO/NO-GO judgement.

＊Alarm output pin

• Outputs OR of three types of alarms displayed on the top screen in negative logic.
Since the open collector output is used, pull up the circuit for connection.

＊Operation while using GPIB and Ethernet

• The REMOTE CONTROL connector is enabled even when operating the instrument
via the GPIB (in remote control mode) and Ethernet. When the REMOTE CONTROL
connector is not used, disconnect any equipment from the connector.

7-1

8. GPIB

Since this instrument provides the GPIB (IEEE 488) connector as standard, major functions
can be remotely controlled via the GPIB interface.

Note

The GPIB capability of this instrument is confirmed by using the GPIB board (PCI-GPIB,
PCMCIA-GPIB) manufactured by National Instruments Corporation (NI). If other than
the board mentioned above is used, operation may differ from the instructions in this
manual. Therefore, the board mentioned above should be used when controlling this
instrument.

8.1 Specifications

Standard Conforms to ANSI/IEEE Std 488.1-1978
LSI Used TMS9914A or equivalent
Code ASCII

8.2 Interface Function

Table 8-1 Interface function

Function Subset Description

Source Handshake SH1 All functions

Acceptor Handshake AH1 All functions

Talker T8 Basic talker function, canceling talker

specified by listener

Listener L4 Basic listener function, canceling listener

specified by MTA

Service Request SR0 No function

Remote/Local RL2 No LLO function

Parallel Poll PP0 No function

Device clear DC1 All function

Device trigger DT0 No function

Control C0 No function

E1 Open collector driver is used.

State driver is used for EOI and DAV,
however.

8-1

8.3 Interface Message Function

Table 8-2 Interface message and ASCII code

Upper
4 bits

0 1 2 3 4 5 6 7

Lower
4 bits

ASC MSG ASC MSG ASC MSG ASC MSG ASC MSG ASC MSG ASC MSG ASC MSG

0

NUL SPC 0 @ P ` p

1

GTL

! 1 A Q a q

2 " 2 B R b r

3 # 3 C S c s

4

SDC

DCL

$ 4 D T d t

5 % 5 E U e u

6 & 6 F V f v

7 ' 7 G W g w

8 ( 8 H X h x

9 ) 9 I Y i y

A

LF

* : J Z j z

B

+ ; K [ k {

C

, < L ¥ l |

D

CR

- = M ] m }

E . > N ^ n ~

F / ?

UNL

O _

UNT

o

Talk address

Listen address

Universal command group

Address command group

8.4 GPIB Address

Settable Range 1 to 30
Setting Procedure (Refer to Section 5.6.3)

8-2

8.5 Clear, Reset

The Clear and Reset modes can be controlled by using the commands.
The followings describe the reply for the clear and reset operations.

(1) IFC (Interface clear)

Reply of the universal command (IFC) is listed below.

• Cancels specified talker and listener.

• GPIB buffer and waiting command remain as is.

• Remote control conditions remain as is.

• Front panel control settings remain as is.

(2) DCL, SDC (Device clear)

Reply of the universal command (DCL) and address command (SDC) are listed below.

• Clears the GPIB buffer and waiting command.

• Interface conditions (specified talker and listener conditions) is remained.

• Enables the remote control mode.

• Front panel control settings remain as is.

(3) Returning power on

When the power is turned on again, the following operation is performed.

• Cancels specified talker and listener.

• Clears the GPIB buffer and waiting command.

• Enables the local control mode.

• Displays the top screen regardless of the display before turning power off.

8.6 REMOTE/LOCAL

The remote or local control mode can be selected by using the system controller and
REMOTE key. Either remote or local control mode is always selected. Each status is
described below.

(1) Local control mode

The local control mode is selected under the following conditions:
(a) Power is turned on. (Immediately after the instrument starts.)
(b) The REMOTE LED is turned off by pressing the REMOTE key.
(c) When GTL command is received.
(d) Remote control mode is canceled.

(2) Remote control mode

The remote control mode is enabled when the REN is in the truth state and this
instrument is set to the listener. The REMOTE LED lights. In remote control
mode, all front panel keys except the POWER switch and REMOTE key are
disabled.
The instrument can be controlled via the ETHER connector. The REMOTE
CONTROL connector can also be used to control this instrument. When the GPIB
capability is enabled, do not connect the equipment (e.g., personal computer) to
the ETHER or REMOTE CONTROL connector.

8-3

8.7 Multiline Message Command

Table 8-3 lists the multiline message command types and a reply to each command.

Table 8-3 Reply of multiline message command

Type Name Description Reply

DCL Clearing GPIB buffer Yes
SPE Setting serial polling to State No
SPD Clearing serial polling No
PPU Clearing parallel polling No

Universal

Command

LLO

Setting all devices to local lockout status to inhibit
manual operation

No

UNL Canceling specified listener Yes
UNT Canceling specified talker Yes
SDC Clearing GPIB buffer Yes

PPC

Enabling line assignments of specified parallel poll to
listener in parallel polling

No

GTL Setting specified device to local Yes
GET Triggering specified device No

Address

Command

TCT

When there are two controllers in the system, the
controller specified to the talker operates as a master

No

8.8 Program Message Format

When controlling this instrument via the GPIB interface, send the program codes from the
controller to this instrument.
The program message consists of a single or multiple program codes.
The program code consisting of up to 255 bytes (including delimiter) per each program
message in ASCII code can be received.
If the program code contains unspecified header or parameter outside the settable
specified range, this program code is ignored even when the operation is performed.

8.9 Program Message Terminator

The terminator is used to delimit a program message. The following terminators CR can
be used even if CR is attached.

(1) LF
(2) LF+EOI
(3) EOI

Separator for reply message ・・・";" (3Bh in ASCII code)

Terminator for reply message ・・・CR+LF+EOI

8.10 Program Code Format

The program code consists of header and data in accordance with requirements.

(1) Character

Use uppercase letters should be used for header and data.

(2) Delimiter between header and data

Insert a space (20h in ASCII code) between header and data.
Also insert a space before "?" for query.

8-4

(3) Program message unit separator

Use a semicolon ";" (3Bh in ASCII code) when transfers multiple messages
simultaneously.

(4) Program data separator

Use a comma "," (2Ch in ASCII code) to delimit multiple parameters.

8.11 Program Code List

Table 8-4 Setting code list

Header Data Description Unit

1 SY n 0 to 2 Selecting modulation mode

n 0 to 5 Selecting TS input
p 0 to 2 Type of TS input, or ROM video pattern
q 0 to 3 ROM screen size

2 TS

r 0 to 2 ROM sound pattern
3 CO n 0 to 1 CN on (1), off (0)
4 CN i 0.0 to 30.0 Setting C/N value dB
5 CU CN value UP
6 CD CN value DOWN
7 CL n 0 to 2 Selecting digit of the C/N value to be set
8 BO n 0 to 1 Setting BER measurement on (1), off (0)
9 BU ne 0.00E-0 to 9.99E-1 Setting upper limit of BER threshold value

10 BL ne 0.00E-0 to 9.99E-1 Setting lower limit of BER threshold value
11 BI p 0.1 to 3600.0 Setting BER measurement interval 0.1 sec
12 CH n Setting channel CH
13 RF i 50.000 to 900.000 Setting RF frequency MHz
14 FU Frequency UP
15 FD Frequency DOWN
16 DF n 0 to 5 Selecting digit of the frequency to be set
17 LM i -100.0 to 13.0 Setting output level dBm
18 DU Output level UP
19 DD Output level DOWN
20 DL n 0 to 2 Selecting digit of the output to be set
21 CK n 0 to 1 Selecting reference signal
22 ST n 0 to 99 Setting address to store data
23 RC n 0 to 99 Setting address to recall data
24 RU Address increment
25 RD Address decrement
26 RR Returning to begin address
27 GR n 0 to 9 Selecting group

n

0 to 9

Setting begin and end addresses in each
group

p 0 to 98 Setting begin address

28 GS

q 1 to 99 Setting end address

29 CW n 0 to 1 Setting modulation on (1), off (0)

8-5

Table 8-5 Query code list

Header Data Description Reply
1 SY ? Reading modulation mode selected n
2 TS ? Reading signal selected to TS input n, p, q, r
3 CO ? Reading setting status of CN on (1), off (0) n
4 CN ? Reading setting status of C/N value i
5 CL ? Reading setting status of step to be set n
6 BO ? Reading setting status of BER measurement on (1), off (0) n
7 BR ? Reading BER value ne
8 BJ ? Reading judgement results ne, n
9 BU ? Reading setting status of upper limit for BER threshold value ne

10 BL ? Reading setting status of lower limit for BER threshold value ne
11 BI ? Reading setting status of BER measurement interval n, p
12 CH ? Reading setting status of channel n
13 RF ? Reading setting status of RF frequency i
14 DF ? Reading setting status of digit to be set n
15 LM ? Reading setting status of output level i
16 DL ? Reading setting status of digit to be set n
17 CK ? Reading selection status of reference signal n
18 GR ? Reading selection status of group n
19 GS n ? Reading setting status of begin and end addresses in each

group

n, p

20 CW ? Reading setting status of modulation n

Refer to each Option instruction manual for specified program code of option.

8-6

8.12 Detail Program Code

This section describes the detail program codes listed in Section 8.11.
Definition:

n, p, q, r, s 0 and natural number
i Integer including decimal point
ne Real number including exponential number
_ Space (20h in ASCII code)

• Terminator is omitted for a syntax. Add the terminator at the end of the code (refer to
Section 8.9).

• Header is not added for reply; the reply code consists of data only.

(1) Selecting modulation mode................... "SY"

Function Selecting and querying modulation mode.
Syntax SY_n (Setting, reply)
SY_? (Query)

n Modulation Mode Selection
0 8VSB
1 64QAM
2 256QAM

(2) Selecting TS input................................. "TS"

Function Selecting and querying TS for channel coding.
Syntax TS_n (, p, q, r) (Setting, reply)
TS_? (Query)

＊In this program code, the amount of consequent data depends on "n" selected.

n TS Input Selection
0 PN
1 External ASI
2 External SPI
3 Internal (OP70)
4 Reserve (Not used)
5 ROM

＊"3" is only enabled when the Moving Picture Option (OP70) is installed.

For external ASI or external SPI

p TS Type Selection
0 MPEG-2 TS
1 Reserve (Not used)

8-7

For Internal (OP70 installed. Reply only; no setting is required.)

p Drive Used
0 HDD
1 DVD

For ROM

p Pattern Selection
0 Color Bar
1 Ramp
2 Monoscope

q Screen Size Selection
0 1920 x 1080i (16:9)
1 1280 x 720p (16:9)
2 704 x 480i (16:9)
3 704 x 480i (4:3)

r Sound Pattern
0 L: 1 kHz, R: 400 Hz
1 L, R: 1 kHz
2 L, R: 400 Hz

(1) For PN TS_0 (PN)
(2) For ASI, SPI TS_1, 0 (ASI, MPEG-2 TS)
(3) For ROM TS_5, 1, 0, 2 (Ramp, 1920x1080i, 400 Hz)
(4) For Internal TS_3 (At setting)
Reply for TS_? 3, 0

＊Setting of "n" and following data are ignored when they are not matched.
＊When playing back TS from HDD or DVD, setting the TS command forcibly stops

playback operation.

8-8

(3) Setting C/N on/off ............................... "CO"

Function Setting and querying C/N set in Step (4) on/off.
Syntax CO_n (Setting, reply)

CO_? (Query)

n C/N On/Off
0 Off
1 On

(4) Setting and querying C/N value.......... "CN"

Function Setting and querying C/N value added.
Syntax CN_i (Setting, reply)

CN_? (Query)

i C/N value: 0 to 31.0 (dB) Effective down to one digit after the decimal point

(5) Incrementing C/N value......................"CU"

Function Incrementing C/N value in current steps.
Syntax CU (Setting)

(6) Decrementing C/N value .................... "CD"

Function Decrementing C/N value in current steps.
Syntax CD (Setting)

(7) Setting preset steps for C/N value...... "CL"

Function Setting preset steps for incrementing and decrementing C/N value.
Syntax CL_n (Setting, reply)

CL_? (Query)

n C/N Value Steps
0 0.1
1 1.0
2 10.0

(8) Setting BER measurement................."BO"

Function Setting and querying BER measurement.
Syntax BO_n (Setting, reply)

BO_? (Query)

n BER Measurement
0 Off
1 On

＊Only when Source on the TS Source screen is set to PN, this program code is turned

on effectively and automatically.

8-9

(9) Reading BER measurement value ....."BR"

Function Reading BER measurement value.
Syntax ne (Reply)

BR_? (Query)

BER value ne: Replied in exponential format of 0.00E-0

＊This program code can only be used when the Source on the TS Source screen is set

to PN.

(10) Reading BER judgement results ........ "BJ"

Function Reading BER GO/NO-GO judgement results In accordance with

measurement value.

Syntax ne_n (Reply)

BJ_? (Query)

BER value ne: Replied in exponential format of 0.00E-0

n BER Measurement
0 NO-GO
1 GO

＊This program code can only be used when the Source on the TS Source screen is set

to PN.

(11) Setting upper limit of BER .................. "BU"

Function Setting and querying upper limit for GO/NO-GO judgement.
Syntax BU_ne (Setting, reply)

BU_? (Query)

BER upper value ne: Exponential format of 0.00E-0

＊This program code can only be used when the Source on the TS Source screen is set

to PN.

＊When the value set is below the current lower limit, the value is ignored due to

handles as an error.

(12) Setting lower limit of BER..................."BL"

Function Setting and querying lower limit for GO/NO-GO judgement.
Syntax BL_ne (Setting, reply)

BL_? (Query)

BER lower value ne: Exponential format of 0.00E-0

＊This program code can only be used when the Source on the TS Source screen is set

to PN.

＊When the value set is above the current upper limit, the value is ignored due to it is

handles as error.

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(13) Setting BER measurement interval .... "BI"

Function Setting and querying BER measurement interval.
Syntax BI_p (Setting, reply)

BI_? (Query)

BER measurement interval p: 0.1 to 3600.0 sec.

Effective down to one digit after the decimal point.

＊The value set in second is converted into the number of packets ; it cannot be set in

number of packets.

Notes on program code for (8) to (13)

When TS input is set other then the PN, both setting and querying operations are
disabled.

(14) Setting RF channel............................."CH"

Function Setting and querying RF channel (VHF, UHF, CATV).
Syntax CH_n (Setting, reply)

CH_? (Query)

n RF channel VHF, UHF, CATV channel

n, STD STD setting of USA CATV channel

n, IRC IRC setting of USA CATV channel

n, HRC HRC setting of USA CATV channel

＊This program code is ignored when querying channel set in frequency.

(15) Setting RF frequency.........................."RF"

Function Setting and querying RF frequency.
Syntax RF_i (Setting, reply)

RF_? (Query)

i RF frequency: 50.000 to 900.000 (MHz), effective down to three digits after

decimal point

＊This program code is ignored when querying channel set in channel.

(16) Incrementing frequency or channel .... "FU"

Function Incrementing frequency in current steps when RF is set in frequency.

Incrementing channel by one when RF is set in channel.

Syntax FU (Setting)

(17) Decrementing frequency or channel .."FD"

Function Decrementing frequency in current steps when RF is set in frequency.

Decrementing channel by one when RF is set in channel.

Syntax FD (Setting)

8-11

(18) Setting frequency in current steps "DF"

Function Setting and querying increment/decrement of frequency in current

steps.

Syntax DF_n (Setting, reply)

DF_? (Query)

n Frequency Steps
0 0.001
1 0.01
2 0.1
3 1.0
4 10.0

＊This program code is ignored when frequency is set in channel.

(19) Setting output level............................."LM"

Function Setting and querying output level.
Syntax LM_i (Setting, reply)

LM_? (Query)

i Output level: 13.0 to -100.0 (dBm)
Effective down to one digit after the decimal point

(20) Incrementing output level ................... "DU"

Function Incrementing output level in current steps.
Syntax DU (Setting)

(21) Decrementing output level.................."DD"

Function Decrementing output level in current steps.
Syntax DD (Setting)

(22) Setting output level in current steps ... "DL"

Function Setting and querying increment/decrement of output level in current

steps.

Syntax DL_n (Setting, reply)

DL_? (Query)

n Output Level Steps
0 0.1
1 1.0
2 10.0

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(23) Selecting reference clock "CK"

Function Setting and querying reference clock.
Syntax CK_n (Setting, reply)

CK_? (Query)

n Reference Clock
0 Internal
1 External input

(24) Writing preset memory ....................... "ST"

Function Storing current setting conditions to specified number.
Syntax ST_n (Setting)

n Preset number 0 to 99

(25) Reading preset memory ..................... "RC"

Function Reading preset values of specified number.
Syntax RC_n (Setting)

n Preset number 0 to 99

(26) Incrementing preset number .............."RU"

Function Incrementing preset number.
Syntax RU (Setting)

(27) Decrementing preset number............."RD"

Function Decrementing preset number.
Syntax RD (Setting)

(28) Preset return....................................... "RR"

Function Returning preset number to top.
Syntax RR (Setting)

(29) Selecting group .................................."GR"

Function Setting and querying group.
Syntax GR_n (Setting, reply)
GR_? (Query)

n Group number 0 to 9

8-13

(30) Setting group "GS"

Function Setting and querying group.
Syntax GS_n, p, q (Setting, reply)
GS_n_? (Query)

n Group number 0 to 9
p Begin address 0 to 98
q End address 1 to 99

＊The address numbers should be: begin address < end address.

(31) Setting modulation.............................. "CW"

Function Setting and querying modulation.
Syntax CW_n (Setting, reply)
CW_? (Query)

n Modulation
0 Modulation output
1 CW (carrier) output

8-14

9. ETHERNET

9.1 Connection

When constructing the network system via the ETHER connector, use a STP cable
conforming to 100BASE-TX standards.
Use a straight cable when connecting the network via a hub. Use a cross cable when
connecting a personal computer.
Network manager should set the TCP/IP of this instrument according to your local network
environments.

9.2 Operating with Personal Computer

Use the TELNET when remotely controlling the LG 3803 by using a commuter. To startup
the TELNET, refer to the personal computer instruction manual.

＊Starting TELNET with the Windows 2000

① Select TELNET from the START menu.
② When IP address assigned to the LG 3803 is "192.168.0.1," enter "TELNET

192.168.0.1."

③ The LG 3803 and TELNET is now connected.

When TELNET is started, "login:" is displayed. Enter "lg3803."
When "Password" is displayed, enter "lg3803."
The login name and password cannot be changed.
Prefix "rem" to the command listed in Tables 8-4 and 8-5 for run the system. Attach "?"
after the command to read setting value.

Example 1: When setting the frequency to 500 MHz, output level to -60 dBm,

proceed as follows:

rem □ RF □ 500 ENTER

rem □ LM □ -60 ENTER

＊ □ is a space. Enter a space between header and data code.

Example 2: When reading the channel being set, proceed as follows:

rem □ CH □ ? ENTER
＊Enter a space between header, data code, and "?."

Notes on using Ethernet

This instrument can be controlled via the Ethernet even when operating via the GPIB
interface, or REMOTE CONTROL mode is in operation. When Ethernet is only used,
disconnect other cables.

＊Windows is a registered trademark of Microsoft Corporation.

Operation of this instrument is confirmed by using Windows 2000 (SP2), however, the
system may operate incorrectly depending on the personal computer environments.

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10. MAINTENANCE

The LG 3803 is designed to operate stably under normal handling. If you have questions
regarding calibration and service, contact your local Leader agent.

■ Open Source

This instrument partially uses the open source distributed under the terms of the GNU General
Public License. (http://www.gnu.org/copyleft/gpl.html)

When the source code is required, contact your local Leader agent.

[ NOTE ]

1. We do not guarantee and support software distributed under the terms of the GNU
General Public License.

2. We are not responsible for modifying and distributing this program on your side.

3. You will be charged upon placing your order.

Jun. 3, 2005 05060.001K TS 1

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