Lumens Technology PC120 User Manual download pdf (Page 50)

English - 49

Chapter 10 Troubleshooting

This chapter describes problems you may encounter while using PC120. If you

have questions, please refer to related chapters and follow all the suggested

solutions. If the problem still occurred, please contact our distributors or service

center.

No.

Problems

Solutions

Boot without power

signal

Ensure that the USB cable is connected.

Unable to focus

Probably the document is too close. Pull away the

distance between document and lens, then click

[FOCUS].

PC120 cannot

operate normally

Probably the machine cannot operate normally due to

that the power supply of the USB port at the front end of

the computer is insufficient. Try to connect to a USB port

at the rear end or a USB hub with a power adapter.

Cannot identify

PC120

Outdated or incomplete OS versions might not be able to

identify USB devices like PC120. Please use Windows

XP SP2 or newer versions that are compatible.

Output screen is

flickering

By default, the voltage/frequency value of Podium View

is 60Hz. If voltage/frequency of 50Hz is required in your

country, flickering of screen may occur when the Podium

View

is used. Please refer to 6.1.3 and 6.2.5 Camera

Settings of Chap 6 Function Menu to change the

POWER frequency setting to 50Hz.

Digital Zoom is

disabled

Please click Options to make sure whether

Software Mode is on Annotation Mode. For details,

please refer to 6.1.4 Options of Chap 6 Function

Menu.

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Lumens Technology PC120 User Manual Page 50