Troubleshooting Presentation Jun'13

7/28/2019 Troubleshooting Presentation Jun'13

1/11

Approved For: Limited Distribution Only

July2013

Version2.4

Troubleshooting Guidelines


2/11

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Troubleshooting

2 Limited Distribution Only

Troubleshooting can be divided into several ways:

MX scanner hardware related

SeeHawk operation related

RF measurement related

We will try to cover several general cases as future reference of engineers


3/11

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WhyMy

MX

Does

Not

Power

Up


When power cable is connected to the

Cigarette Light socket in the vehicle, power

switch is on the ON position but no light is

observed.

Does the fan work? If so, perhaps the

LED is broken

In case of no light and no fan, check thelight on the cigarette light plug, does

the LED light up? If not, screw the head

off and check the fuse, if fuse is blown,

replace a fuse

If the fuse on the cigarette light plug isnot blown, check the car fuse of the

cigarette light socket, replace it if it is

blown


4/11

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WhyMXCannotBeDetected

BySeeHawk?


After connecting MX to laptop and launch

SeeHawk, the autodetection runs for a few

minutes but it prompts no hardware

detected

Make sure the status LED on the MX

front panel is steady green. MX takes a

few minutes to initialize, SeeHawk canonly detect MX when the status light is

steady green

If the light is green but SeeHawk cannot

detect it, check (i) MX driver is installed

properly (check hardware device

manager); (ii) USB cable is secured or

try another USB cableCanyouseethePCTELMXScanner?

IsthestatusLEDsteadygreen?


5/11

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WhyMyWCDMATopN

Windowis

Blank?


After entering the channel number and

configure the Top N scan, open a bar chart

of the WCDMA TopN but no pilots is

showing after starting the scan

Check if the correct channel number is

set, pilot will only show when the

correct center carrier frequency is set Check the antenna connection, make

sure the antenna is connected to the

correct RF port of the scanner

Check the status LED on the scanner, is

it steady green? Does the COM, DATA

and SCAN indication on SeeHawk

show all green?

IstheRFportcorrectlyconnected?

Arealltheindicatorsgreen?


6/11

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AmIGetting

A

Pilot

Pollution?


Different operators may have a

different definition of Pilot

Pollution

In SeeHawk there is a pre

defined Pilot Pollution Pilot

Count , which definition is

there are more than 3 pilotswhich Ec/Io is > 10dB

Some operators will define as

more than 3 pilots which Ec

(or RSCP) is within 13dB range

of the strongest detected

pilot

What is your definition?


7/11

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AmIGettingAnExternal

Interference?


External interference usually

appear as a very narrow band

signal, in a WCDMA system, you

may be able observe a spike

appear on top of a WCDMA

wideband signal.

Also if you turn off the BTS,and unwanted signal has

been detected, it can be

classified as an external

interference.

DoyouobservetheunwantedsignalwhentheBTSisoff?

Interference

e.g.InterferingGSMsignalonaWCDMAband


8/11

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SeeGullAssistant

Program


PCTEL provides SeeGull Assistant

as a scanner update utility used to

update SeeGull scanners.

When you connect to a scanner, launch

SeeGull Assistant, click the Detect Scanner

button (red box), then information of the

scanner will be shown on the right

Click the Save Scanner Info To File button

(pink box) to save the information on theright to a text file (sometimes during

troubleshooting with PCTEL engineer, such

text file will be required, so you can send the

saved file to PCTEL for troubleshooting

purpose)

If downloading a file is required (for enabling

/ disabling feature or loading firmware), clickthe Select Update File button (green box)

and select the file PCTEL provide

Click the Download Update button (brown

box) to start the file download, make sure

input power is stable without interruption

during downloading

IfyoudonothaveacopyoftheSeeGullAssistantprogram,youcanalways

downloaditfromthePCTELsupportwebsite:

http://rfsolutions.pctel.com/artifacts/SeeGullAssistant1.4.2.8.zip


9/11

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RMAProcedures

Repair


PCTEL MX scanner has a 3year warranty

period, within the first 3 year, if the

scanner is found faulty, it can be returned

to PCTEL US facility with a freeof

charge

repair

Warranty will be revoked if the fault is caused by

human, tempered by human or warranty seal is broken

For inwarranty repair customer is responsible to pay

for the shipping to send the unit to US for repair, while

PCTEL will pay for the shipping of returning the repaired

unit

For outofwarranty repair customer is responsible to

pay for shipping both ways

If scanner is found faulty, customer should first contact

PCTEL for primary troubleshooting to make sure unit is

bad, then one can fill in the online RMA request form

Upon receiving the RMA request, PCTEL will issue a

RMA document to customer, then customer can send in

the faulty unit together with a printed copy of RMA

document

CustomercanfindonlineRMArequestformatthebelowlink:

http://rfsolutions.pctel.com/content.cgi?id_num=255


10/11

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RMAProcedures

Calibration


PCTEL recommends MX scanner to be

calibrated every 2 years, customer can

choose to have the unit calibrated at our

PCTEL US headquarter facility or

authorized calibration house in Malaysia

Calibration service is a paid service no matter scanner is

under warranty or not

Customer is responsible to pay for shipping both ways

Customer needs to fill in the online RMA request form

the same way as doing repair

Upon receiving the RMA request, PCTEL will issue a

RMA document to customer, then customer can send in

the faulty unit together with a printed copy of RMA

document

Upon calibration of the scanner, PCTEL will provide a

printed copy of calibration certificate together with

the calibrated unitCustomercanfindonlineRMArequestformatthebelowlink:

http://rfsolutions.pctel.com/content.cgi?id_num=255


11/11

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Thankyou


Documents

Troubleshooting Presentation Jun'13