LevelOne UDS-1000 User Manual

Ver. 1.00-0512

UDS-1000

USB 2.0 Docking Station

User’s Manual

2

Table of Contents

1. INTRODUCTION .............................................................................................................. 3

1.1 FEATURES.................................................................................................................. 3

1.2 PACKAGE CONTENTS .................................................................................................. 3

1.3 SYSTEM REQUIREMENTS ............................................................................................ 4

1.4 AVAILABLE FUNCTIONS ................................................................................................ 4

1.5 INTERFACES............................................................................................................... 5

1.6 LED INDICATOR.......................................................................................................... 6

2 INSTALLATION................................................................................................................ 7

2.1 WIN98/98SE............................................................................................................. 7

A. USB Hub Installation............................................................................................ 7

B. IEEE-1284 Controller Installation......................................................................... 9

C. USB-to-Serial Port Installation............................................................................11

D. USB Composite Device Installation................................................................... 13

E. Ethernet Port Installation.................................................................................... 15

F. USB HID Device for PS/2 keyboard & mouse.................................................... 17

2.2 WINME.................................................................................................................... 19

A. USB-to-Parallel Port Installation........................................................................ 19

B. USB-to-Serial Port Installation........................................................................... 19

C. Ethernet Port Installation ................................................................................... 20

2.3 WIN2000................................................................................................................. 22

A. USB-to-Serial Port Installation........................................................................... 22

B. Ethernet Port Installation.................................................................................... 24

2.4 FOR WINXP............................................................................................................. 26

A. Serial Port Installation........................................................................................ 26

B. Ethernet Port Installation.................................................................................... 27

3 IMPORTANT NOTICE .................................................................................................... 28

3.1 LAPTOP COMPUTER USERS....................................................................................... 28

3.2 SYSTEM PROPERTIES STATUS ................................................................................... 29

4 SET UP THE PRINTER DEVICE.................................................................................... 30

4.1 FOR WINDOWS 98/98SE/ME.................................................................................... 30

4.2 FOR WINDOWS 2000/XP.......................................................................................... 32

5 SET UP THE HYPERTERMINAL WITH SERIAL PORT ............................................... 34

6 UNINSTALLING USB 2.0 DOCKING STATION............................................................ 36

6.1 FOR WINDOWS 98/SE/ME........................................................................................ 36

6.2 FOR WINDOWS 2000/XP.......................................................................................... 38

7 TROUBLE SHOOTING .................................................................................................. 39

8 APPLICATION NOTE..................................................................................................... 40

3

1 Introduction

The USB 2.0 Docking Station is an intelligent expansion module, which
connects to a PC or notebook via Universal Serial Bus (USB) port and VGA
output port, providing one high-speed RS-232 serial port, one printer port, one
PS/2 keyboard & mouse, 3 downstream USB 2.0 ports and one Ethernet
access and one extending VGA display output port. The USB 2.0 Docking
Station features easy connectivity for traditional serial devices, keyboard,
mouse and other USB devices and provides up to 480Mbps USB 2.0 High
Speed capability. Also add one extra Ethernet port and extra VGA display to
your PC or notebook in seconds.

1.1 Features

 Instantly converts notebook into networked desktop workstation
 Adds a Parallel, Serial, 10/100M Ethernet LAN, PS/2 Keyboard/Mouse

and three USB 2.0 ports to your laptop or desktop system

 Connect your desktop monitor to your laptop with VGA pass-through
 Use USB bus-powered or self-powered with included power adapter
 Backward compatible with USB 1.1 devices
 Easy installation and compatible with Windows 98/98SE/ME/2000/XP

1.2 Package Contents

The product you purchased should contain the equipment and accessories
shown as follows:

 UDS-1000 USB 2.0 Docking Station
 VGA/USB Combo Cable
 Power Adapter
 CD with Manual / Driver

4

1.3 System Requirements

A PC with Pentium series, equivalent, or above.
A minimum of 16M bytes of RAM.
One available USB type A downstream port (UHCI, OHCI, or EHCI).
Windows 98 or later.

1.4 Available functions

The available functions of USB 2.0 Docking Station depend on the status of
power supplied:

 Bus powered

Connect the USB/VGA combo Y cable to your PC to provide bus power.
When you provide bus power only, the PS/2 mouse & keyboard, RS232,
printer and Ethernet ports will be enabled. However, the USB2.0
Downstream Ports can also work under low power mode. So used of
external power adaptor is recommended. (For the use of all functions)

 Externally powered

Connect the power adapter to provide external power.
When you provide external power, the USB Downstream Ports can
support all USB devices, and you can use all the functions of USB 2.0
Docking Station.

5

1.5 Interfaces

Two mini-din PS/2 ports for keyboard, mouse.
One RJ45 10/100T base Ethernet connector.
One DB-9 RS-232 serial interface connector supports baud rates from 4800 to

115.2K.
One DB-25 parallel connector supports IEEE-1284 bi-directional printer port.
Three USB receptacles type A downstream ports.
One male and one female DB-15 VGA connectors.
One power connector

Fig.1.2

PS/2 Mouse

VGA In

(Y Cable)

PS/2 Keyboard

Power

Connector

VGA Out USB 2.0

Printer Port Serial

Port

Ethernet

Port

6

1.6 LED Indicator

 Power Indicator

The Power Indicator will turn RED as either bus power or external
power is supplied, even both of them supplied.

 LAN Indicator

Link/Act (RED): This LED turns on if the 10/100Mbps (100BASE-TX)
Ethernet is connected.
Transmission (RED): Blinking to indicate that the data is being received
or transmitted through the RJ-45 port.

Fig.2

Power Indicator LAN Indicator

7

2 Installation

This installation guide is written in accordance with different operation
systems, including Windows 98/98SE/ME, Windows 2000/XP.
Power on your computer and make sure that the USB & VGA ports are
enabled and working properly.

1. Put CD into CD-ROM drive of PC or Notebook.

2. Connect the power adapter into USB 2.0 Docking Station.
(Note: You must apply power adapter for full functions)

3. Connect USB 2.0 Docking Station to the USB and VGA port on your
computer with the VGA/USB combo Y cable provided. ( as Fig.3)

4. Windows will start detecting USB devices. Please follow the related section
to install your USB 2.0 Docking Station.

Fig.3

2.1 For Win98/98SE

The driver installation is divided into A to F six-steps. Please install USB 2.0
Docking Station under Win98/SE step by step by the following instructions:

2.1.1 A. USB Hub Installation

Fig. Win98-A1

A1. Please insert the
“Windows 98” CD into your
CD-ROM drive and press
“Next” to continue.
(Ref. Fig. Win98-A1)

8

Fig. Win98-A2

Fig. Win98-A3

Fig. Win98-A4

A2. Tick “Search for the
best driver for your
device” and press “Next”
to continue.
(Ref. Fig. Win98-A2)

A3. Tick “CD-ROM drive”
and press “Next” to start
the searching process.
(Ref. Fig. Win98-A3)

A4. Press “Next” to start
the installation process.
(Ref Fig. Win98-A4)

9

Fig. Win98-A5

2.1.2 B. IEEE-1284 Controller Installation

Fig. Win98-B1

Fig. Win98-B2

A5. Press “Finish” to
complete the installation
of USB HUB.
(Ref Fig. Win98-A5)

B1. Please insert the
“USB 2.0 VGA LAN
DOCK” CD into your
CD-ROM drive and press
“Next” to continue.
(Ref. Fig. Win98-B1)

B2. Tick “Search for the
best driver for your
device” and press “Next”
to continue.
(Ref. Fig. Win98-B2).

10

Fig. Win98-B3

Fig. Win98-B4

Fig. Win98-B5

B3. Tick “Specify a
location” and click
“Browse” to select the
location of the driver
folder in the “USB 2.0
VGA LAN DOCK” CD.
Press “Next” to start
the searching process.
(Ref. Fig. Win98-B3).

B4. Press “Next” to
start the installation
process.
(Ref. Fig. Win98-B4)

B5. Press “Finish” to
complete the
installation of
USB-to-Parallel Port.
(Ref. Fig. Win98-B5)

11

2.1.3 C. USB-to-Serial Port Installation

C1. Please insert the “USB 2.0 Docking Station” CD into your CD-ROM drive
and press “Next” to continue. (Ref. Fig. Win98-C1)

Fig. Win98-C1

Fig. Win98-C2

Fig. Win98-C3

C2. Tick “Search for
the best driver for your
device” and press
“Next” to continue.
(Ref. Fig. Win98-C2)

C3. Tick “Specify a
location” and click
“Browse” to select the
location of the driver
folder in the “USB 2.0
VGA LAN DOCK” CD.
Click “Next” to start the
searching process.
(Ref. Fig. Win98-C3)

12

Fig. Win98-C4

Fig. Win98-C5

C5. Press “Finish” to
complete the
installation of
USB-to-Serial Port.
(Ref. Fig. Win98-C5)

C4. Press “Next” to
start the installation
process.
(Ref. Fig. Win98-C4)

13

D1. Please insert the
“Windows 98” CD into
your CD-ROM drive and
press “Next” to continue
(Ref. Fig. Win98-D1)

2.1.4 D. USB Composite Device Installation

Fig. Win98-D1

Fig. Win98-D2

Fig. Win98-D3

D2. Tick “Search for the
best driver for your
device” and press “Next”
to continue.
(Ref. Fig. Win98-D2)

D3. Tick “CD-ROM drive”
and press “Next” to start
the searching process.
(Ref. Fig. Win98-D3)

14

Fig. Win98-D4

Fig. Win98-D5

D4. Press “Next” to
start the installation
process.
(Ref. Fig. Win98-D4)

D5. Press “Finish” to
complete the
installation of
Composite Device.
(Ref. Fig. Win98-D5)

15

2.1.5 E. Ethernet Port Installation

Fig. Win98-E1

Fig. Win98-E2

Fig. Win98-E3

E1. Please insert the
“USB 2.0 VGA LAN
DOCK” CD into your
CD-ROM drive and
press “Next” to
continue.

E2. Tick “Search for
the best driver for your
device” and press
“Next” to continue.
(Ref. Fig. Win98-E2)

E3. Tick “Specify a
location” and click
“Browse” to select the
location of the driver
folder in the “USB 2.0
VGA LAN DOCK” CD.
Press “Next” to start
the searching process.
(Ref. Fig. Win98-E3)

16

Fig. Win98-E4

Fig. Win98-E5

E4. Press “Next” to
start the installation
process. (Windows
might ask you to insert
the “Windows 98” CD
during the installation
process).

E5. Press “Finish” to
complete the
installation of Ethernet
Port. (Restart
Windows might
necessary).

17

2.1.6 F. USB HID Device for PS/2 keyboard & mouse

(This step might repeat once due to two different devices, mouse and
keyboard)

Fig. Win98-F1

Fig. Win98-F2

Fig. Win98-F3

F1. Please insert the
“Windows 98” CD into
your CD-ROM drive and
press “Next” to continue.
(Ref. Fig. Win98-F1)

F2. Tick “Search for the
best driver for your
device” and press “Next”
to continue.
(Ref. Fig. Win98-F2)

F3. Tick “CD-ROM drive”
and press “Next” to start
the searching process.
(Ref. Fig. Win98-F3)

18

Fig. Win98-F4

Fig. Win98-F5

F4. Press “Next” to
start the installation
process.
(Ref. Fig. Win98-F4)

F5. Press “Finish” to
complete the
installation of HID.
(Ref. Fig. Win98-F5)

19

2.2 For WinME

The driver installation for WinME is divided into A to C three-steps.
Please install USB 2.0 Docking Station under WinME step by step by the
following instructions:

2.2.1 A. USB-to-Parallel Port Installation

Fig. WinME-A1

Fig. WinME-A2

2.2.2 B. USB-to-Serial Port Installation

Fig. WinME-B1

A1 Please insert the
“USB 2.0 VGA LAN
DOCK” CD into your
CD-ROM drive. Tick
“Automatic search for
a better driver” and
press “Next” to
continue.

A2. Press “Finish” to
complete the
installation
USB-to-Parallel Port.
(Ref. Fig. WinME-A2)

B1. Tick “Automatic
search for a better
driver” and press
“Next” to continue.
(Ref. Fig. WinME-B1)

20

Fig. WinME-B2

2.2.3 C. Ethernet Port Installation

Fig. WinME-C1

Fig. WinME-C2

B2. Press “Finish” to
complete the
installation of
USB-to-Serial Port.
(Ref. Fig. WinME-B2)

C1. Tick “Specify the
location for a better
driver” and press
“Next” to continue.
(Ref. Fig. WinME-C1)

C2. Tick “Search for
the best driver for your
device” and then
choose “Specify a
location”. Click
“Browse” to select the
location of the driver
folder in the “USB 2.0
VGA LAN DOCK” CD.
Press “Next” to

21

Fig. WinME-C3

Fig. WinME-C4

C3. Press “Next” to
start the installation
process.
(Ref. Fig. WinME-C3)

C4. Press “Finish” to
complete the
installation of Ethernet
Port.
(Ref. Fig. WinME-C4)

22

2.3 For Win2000

The driver installation for Win2000 is divided into A, B two-steps.
Please install USB 2.0 Docking Station under Win2000 step by step by the
following instructions:

2.3.1 A. USB-to-Serial Port Installation

Fig. Win2k-A1

Fig. Win2k-A2

Fig. Win2k-A3

A1. Please insert the
“USB 2.0 VGA LAN
DOCK” CD into your
CD-ROM drive and
press “Next” to
continue.

A2. Tick “Search for a
suitable driver for my
device” and press
“Next” to continue.
(Ref Fig. Win2k-A2)

A3. Please insert “USB

2.0 VGA LAN DOCK”
CD into your CD-ROM
drive and press “Next”
to start the searching
process.

(

Ref Fig.Win2k-A3)

23

Fig. Win2k-A4

Fig. Win2k-A5

A4. Press “Next” to
start the installation
process.
(Ref Fig. Win2k-A4)

A5. Press “Finish” to
complete the
installation of
USB-to-Serial Port.
(Ref Fig. Win2k-A5)

24

2.3.2 B. Ethernet Port Installation

Fig. Win2k-B1

Fig. Win2k-B2

Fig. Win2k-B3

B1. Press “ Next” to
continue.
(Ref Fig. Win2k-B1)

B3. Tick “CD-ROM
drives” and press
“Next” to start the
searching process.
(Ref Fig. Win2k-B3)

B2. Tick “Search for a
suitable driver for my
device” and press
“Next” to continue.
(Ref Fig. Win2k-B2)

25

Fig. Win2k-B4

Fig. Win2k-B5

Fig. Win2k-B6

B4. Press “Next” to
start the installation
process.
(Ref Fig. Win2k-B4)

B6. Press “Finish” to
complete the
installation of Ethernet
port.
(Ref. Win2k-B6)

B5. You will receive a
message stating that
the software you are
installing has not
passed Windows Logo
testing. But this driver
is fully compatible with
Windows 2000, so just
press “Yes” to
continue.
(Ref. Fig. Win2k-B5)

26

2.4 For WinXP

Please install USB 2.0 Docking Station under Win2000 step by step by the
following instructions:

2.4.1 A. Serial Port Installation

Fig. WinXP-A1

Fig. WinXP-A2

Fig. WinXP-A3

A1. Please insert the “USB

2.0 VGA LAN DOCK” CD
into your CD-ROM drive.
Tick “Install the software
automatically” and press
“Next” to continue
(Ref Fig. WinXP-A1)

A3. Press “Finish” to
complete the installation
of USB-to-Serial Port.
(Ref Fig. WinXP-A3)

A2. You will receive a
message stating that the
software you are installing
has not passed Windows
Logo testing. But this driver
is fully compatible with
Windows XP, so just press
“Continue Anyway” to
continue.
(Ref. Fig. WinXP-A2)

27

2.4.2 B. Ethernet Port Installation

Fig. WinXP-B1

Fig. WinXP-B2

B1. Tick “Install the
software automatically”
and press “Next” to
continue
(Ref Fig. WinXP-B1)

B2. Press “Finish” to
complete the
installation of Ethernet
Port.
(Ref Fig. WinXP-B2)

28

3 Important Notice

Before connecting the printer to the parallel port of USB 2.0 Docking Station,
the printer driver must be installed on your computer in advance, otherwise it
might print unknown format of characters.
Please refer to "Setting Up the Printer Device" section to connect your printer
to the USB 2.0 Docking Station.
For modem users, please install the modem driver manually before
connecting the modem to the converter, otherwise it might operate
unexpectedly.
Please refer to "Setting Up the HyperTerminal with USB to serial port" section
as an example of routing your COM port setting.

3.1 Laptop Computer Users

You have to follow your user’s reference guide for your computer which
provided by your computer manufacture, and set up the VGA output to your
extra VGA port properly. The USB 2.0 Docking Station does not provide the
feature of second display card, but just repeat your VGA display from your
computer and let you set up the working environment fast without lost time.

29

3.2 System Properties Status

Please click on Start, Settings, Control Panel, double-click System, and
Device Manager. Please double check “Human Interface Devices”,
“Keyboard”, “Mouse”, “Network adapters”, “Ports”, and “Universal serial bus
controller” on the dialog box and see if they are working properly.
(Ref. Fig.4, 5)

Fig.4

Fig.5

Keyboard

Ethernet

USB to Parallel

USB to Serial

Mouse

30

4 Set UP the Printer Device

Follow the steps below to connect your printer to the USB 2.0 Docking Station
with your PC:

4.1 For Windows 98/98SE/ME:

Connect the USB 2.0 Docking Station to your printer with the parallel cable
and then turn on the printer.
Connect the USB 2.0 Docking Station to the USB port on your computer with
the USB2.0 transfer cable provided.
Please go to Start, Settings, Control Panel, double click System, and Device
Manager. Check Ports on the dialog box and see which printer ports the
“USB-to-Parallel Port” is located. The following example is located as LPT2.
(Ref. Fig.6)

Fig.6

If you have installed a printer device before, go to Start, Settings, and Printers.
Right-click the default-installed printer and choose Properties. The Properties
dialog box of the installed printer will appear on your screen.

31

Click Details folder tab and change the printer port to LPT2:
USB-to- Parallel Port. (Ref. Fig.7)

Fig.7

If you do not have a printer installed yet, go to Start, Settings, Printers, and
choose Add Printer. The Add Printer Wizard will start and assist you to install a
new printer device. Select the printer manufacturer and model name from the
list provided by the wizard or use the printer driver diskette came with your
printer.
Windows will ask you which port the printer will be used, choose LPT2: USB
to Parallel Port. (Ref. Fig.8)

Fig.8

32

4.2 For Windows 2000/XP

Connect the USB 2.0 Docking Station to your printer with the parallel cable
and then turn on the printer.
Connect the USB 2.0 Docking Station to the USB port on your computer with
the USB 2.0 transfer cable provided.
If you have installed a printer device before, go to Start, Settings, and Printers.
Right-click the default-installed printer and choose Properties. The Properties
dialog box of the installed printer will appear on your screen.
Click Ports folder tab and change the printer port to USB001:
(Virtual printer port for USB). (Ref. Fig.9)

Fig.9

If you do not have a printer installed yet, click on Start, Settings, Printers and
choose Add Printer. The Add Printer Wizard will start and assist you to install
a new printer device. Select the printer manufacturer and model name from
the list provided by the wizard or use the printer driver diskette came with your
printer.

33

Windows will ask you which port the printer will be used, choose USB001:
(Virtual printer port to USB). (Ref. Fig.10)

Fig.10

34

5 Set Up the HyperTerminal with Serial Port

Make sure that HyperTerminal is installed in your system. If not, please go to
Start, Settings, and Control Panel. Double click Add/Remove Programs,
choose Windows Setup page, Communications, click Details button and
enable HyperTerminal to install the program to your Windows system.
Go to Start, Settings, Control Panel, double click System, and click on Device
Manager. Check which COM port is located by USB to serial port. (Ref.
Fig.11)

Fig.11

If you have setup HyperTerminal before, please go to Start, Programs,
Accessories, Communications, HyperTerminal. Click File and choose
Properties. The Properties dialog page will appear on your screen. If it is your
first time to setup HyperTerminal, you will see the following page during the
setup procedure. (Ref. Fig.12)

35

Fig.12

Click the Connect using item to indicate the proper COM port, which appeared
in step 1. Follow the instructions to complete the setup.

36

6 Uninstalling USB 2.0 Docking Station

If you want to remove USB 2.0 Docking Station and its driver, you can
uninstall it by the following steps:

Remove the device
Please Unplug the USB cable.

Uninstall the driver
For the Window 2000/XP users: since the system has build in the USB Printer
Class driver already, so you do not need to remove the printer driver.
For the Window 98/SE/ME users: you have to follow the instruction to remove
the Serial, Printer and LAN driver.

6.1 For Windows 98/SE/ME

1. Run Uninst.exe from the driver folder in USB 2.0 Docking Station CD.

2. Please Press OK to remove Printer Converter. (Ref. Fig.13)

Fig.13

3. Printer Converter had been removed. Please press Exit to continue.
(Ref. Fig.14)

Fig.14

4. Run remove_98me.exe from the driver folder in USB 2.0 Docking Station
CD to remove the LAN driver, this program will not show any message on the
screen.

37

5. Run DRemover98_2k.exe from the driver folder in CD.

6. Please Press OK to remove Serial Converter. (Ref. Fig.15)

Fig.15

7. Press “Yes” to reboot your Windows system to complete. (Ref. Fig.16)

Fig.16

38

6.2 For Windows 2000/XP

1. Run remove_xp2k.exe from the driver folder in USB 2.0 Docking Station CD
to remove the LAN driver, this program will not show any message on the
screen.

2. Run DRemover98_2k.exe from the driver folder in CD.

3. Please Press “OK” to remove Serial Converter. (Ref. Fig.17)

Fig.17

4. Press “Yes” to reboot your Windows system to complete. (Ref. Fig.18)

Fig.18

39

7 Trouble Shooting

Q: Installed the driver for USB 2.0 Docking Station under Windows XP
operation system, there is no Pinter Port available in the device manager , but
the other Ports ( Serial ,Mouse, Keyboard and USB) are OK .

A: The driver for USB to Printer converter on Windows 2000 and XP is not
required. Microsoft supports USB Printer class in both OS. The related driver
will be loaded automatically by Microsoft when you plug in the USB to Printer
device.

It will be created a message “printer support device” in the device manager
and also a “ virtual printer port for USB “ in the port selection of printer setting.
You may just check this item and it will work on both system.

This is different for Windows 98 and ME. There won’t be any LPT port
generated by system as like in 98/ME . Please also refer to the user’s manual
“Set up the Printer Device “ >> for Windows 2000 and XP .

40

8 Application Note

USB 2.0 Docking Station normally derives its own power from PC Host. When
only the Host power is supplied, the Power LED will turn RED, and the serial,
parallel, keyboard, mouse, Ethernet and 3 downstream ports can operate
without the external power adapter.

Please note that if the external power adaptor is not be used and heavy power
consumption USB device is connected, the 3 downstream ports may not
function normally. Therefore the used of external power adaptor is highly
recommend. You may use the external power by connecting an external 5
voltage, 2A DC power that is UL, CE, T-mark or locally approved. For Polarity,
see the following:

Unknown Device:
If the installation process is completed and some of the devices still don't work,
please click on Start, Settings, Control Panel, double-click System, and
Device Manager. Check “Human Interface Devices”, “Keyboard”, “Mouse”,
“Network adapters”, “Ports”, and “Universal serial bus controller” on the dialog
box and see if “Unknown device” appears on the screen. You need to
right-click the “Unknown device” and choose Remove to remove it. Then
choose Refresh to re-detect the device. (You might need to install the device
driver once again so please follow the same installation procedures as section

2.1). After trying the above procedures and your device still cannot work,
please contact the technical support at your local distributor.

41

Disclaimer

Information in this document is subject to change without notice. The manufacturer does not
make any representations or warranties (implied or otherwise) regarding the accuracy and
completeness of this document and shall in no event be liabl e for any l oss of profit or any
other commercial dam age, including but not limited to speci al, incidental, consequential, or
other damages.

No part of this document may be reproduc ed or transmit ted in any form by any means,
electronic or mechanical, including photocopy ing, recording or information recording and
retrieval systems without the express written permission of the manufacturer.

All brand names and product nam es used in this document are trademarks, or registered
trademark s of their r espective holders.

FCC Statement

This device generates and uses radio frequency and may cause interference to radio and
televi sion reception if not installed and used properly. This has been tested and found to
comply with the limits of a Class B computing device in accordance with the specifi c ations in
Part 15 of the FCC Rules. These specific ations are designed to provide reasonabl e pr otection
against such interference in a residential install ation. However, there is no guarantee that
interfer enc e will not occ ur in a partic ular instal lation. If this device does cause harmful
interfer enc e to radio or television reception, which can be determined by plugging the device
in and out, the user can try to correct the interference by one or more of the following
measures:

Reorient or reloc ate the receiving antenna.
Increase the separation between the device and receiver.
Connect the comput er i nto an outl et on a circuit different from that to which the r ec eiv er is
connected.
Consult the dealer or an experienced radio/TV technician for help.