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January 08, 2012

GS Instruments Co., Ltd.

Confidential and proprietary to GS Instruments Co., Ltd.Copying, reproduction or distribution this information is strictly prohibited without prior written authorization from GS Instruments Co., Ltd..

Trouble Shooting Guide

Version 2.9

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INTRO

Before Installation TMB, Please check basic points.

1) O/S for Local / Remote GUI: Window XP, Window 7

2) Check data cable connection and all SMA/N type connector connection

3) Pre-testing of Remote Access: Between Local/Remote GUI and TMB-9100

3) Turn off BTS first before starting your works

4) Turn on TMB first after finishing your works

5) After turn on TMB, please wait 5- 10minutes for warming

6) MCPA module requires 30 – 40 minutes warming up time

7) TMB-9100 is very high powered RF so that Be careful when you set TMB parameters.

8) Remote GUI: Click “MAIN" button (Refresh) after getting SMS from TMB-9100

9) Local GUI: Check “Refresh” for renewal information.

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TMB Operation

1. Auto Level Control Function (Mandatory) - TMB has automatic function to protect its circuit while output power is higher than 52dBM in traffic increasing time - The reduction of TX Gain will be reduced and the step is 0.5dB

2. ALC Mode (Optional setting) - In high traffic sector, please set ALC Mode On and ALC Level. - Max ALC level range is from 40 to 51dB. - It will automatically optimize the TX Gain with 0.5dB step.

3. Auto Recovery Algorithm - TMB will alive automatically if TMB has Overpower alarm, DC Fail, VSWR

4. TMB Power Detection time - Detection gap: 100ms - It will provide real time measurement but the accuracy will be less than Spectrum Analyzer. - BTS output power will be changed within 1ms according to traffic increase - The detected output power in GUI cannot be same with real BTS output power

5. SMS delay or missing - While MCU is working with other job, it cannot update or report alarms and control command. - Try again to set or check TMB unit. - After setting TMB, it takes time to report new information. Try again to get new information.

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Alarm Condition

Parameter Alarm Shutdown Auto recovery Remarks

Over Power O O OAlarm & Shutdown @ Pout ≥ 54.0dBm ± 0.5dB (MCPA Module)Alarm & Shutdown @ Pout ≥ 52.7dBm ± 0.5dB (TMB)After 3mins, auto recovery will be activated (Total 3times)

Over Temperature O O OAlarm & Shutdown @ 90 ± 5°C aboveAuto Recovery & Alarm Clear @ 65 ± 5°C below

VSWR O O O

Activated to detect VSWR (Starting power: more than 35dBm)Alarm after 3secs with Return Loss 6dB(VSWR 1 : 3.0)(Approx.75% against output power)Alarm Clear after Return Loss 8dB(VSWR 1 : 2.4) above (Approx. 85% against output power)Auto Recovery after 100secs (3times)

DC O 　 O

DC 30Volt 40A above supply to MCPA Module DC(-48V) Input current less than 30A @ maximizing power (before overpower alarm level)Bypass mode after 10times of instant DC FailAfter 3mins, auto recovery will be activated (Total 3times)

MCPA Fail O O X Main Path FET (Field effect transistor) is defected

MCPA Enable O 　 X MCPA Module ON and OFF

RX LNA O 　 XLNA Module failMain By pass mode ON

DIV LNA O 　 XLNA FailDIV By pass mode ON

Door O 　 X Door Open

Interior Temperature O 　 XOut of setting valueAlarming only

FAN O X FAN Fail

By Pass Mode O 　 XMCPA Enable Alarm, Over Power Alarm, DC Fail Alarm, RX LNA Fail Alarm,Over Temperature Alarm, VSWR Alarm, Bypass module fail

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Work Processes

Parameter Alarm Pre-steps Trouble shootingEach Module

& TMB ChangeRemark

Over Power O O O

MCPA Module

Over Temperature O O O

VSWR O O O

MCPA Fail O O O

MCPA Enable O O O

DC O O O Power Supply Unit

RX LNA O O O RX LNA

DIV LNA O O O DIV LNA

Door O O O Door Sensor

Interior Temperature O O O FAN

FAN O O O FAN

By Pass Mode O O O Bypass Module

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Pre-Steps

Regarding all alarms, please do first below actions

1. Restart TMB (System Reset) by using Local and Remote GUI

2. Switch OFF and ON DC Power

3. Check Data Cables and RF cable connection inside of TMB

4. Tighten all connectors and cables

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Trouble Shooting

Alarm Lists Alarm Cases Troubleshooting

MCPA Alarm► Main Path FET (Field effect transistor) is defected► Alarm Detector is defected

- Reset the TMB- Warming up: Min 30minutes- Set 0dB TX Gain- Increase TX Gain step by step (0.5dB)

MCPAEnable

► Service antenna or antenna cable is damaged. (VSWR Alarm)► MCPA temperature is too high. (Over Tempera-

ture Alarm)

- VSWR / Over Temperature Alarm Clear

Over Power► High Output signal level at system Output port.► Output power detector of MCPA malfunctions ► Controller of TMB-9100 malfunctions.

- Turn Off and Turn ON MCPA Module (Alarm Clear)- Reduce 0.5dB of TX Gain from previous setting- Check Output detector of MCPA and Controller.

VSWR ► TMB Antenna Port and RF Cable are not connected properly.► MCPA module has high Return power

- Check Jumper and cables to antenna- Reconnect RF Cable to TMB Antenna Port.

RX LNA► Alarm detector is failed. ► LNA Module is failed

- Check Data cable connected to LNA Module- Reset the TMB

DIV. LNA► Alarm detector is failed. ► LNA Module is failed

- Check Data cable connected to LNA Module- Reset the TMB

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Trouble Shooting

Alarm Lists Alarm Cases Troubleshooting

Over Tempera-ture

► MCPA Temp is too High ► Temperature sensor in MCPA module is defected

- Check MCPA module and Internal Temperature- Check FAN and FAN alarm- Turn On and OFF MCPA module- Set TMB Gain as 0dB and check the temperature- Set TMB Gain and check the temperature changes

DC Fail Alarm► DC Output power is too low or high condition. ► DC mains input power is Brown-out condition. ► PSU is defected

- Check DC voltage of DC Supply Source (Normal: -40Volt ~ 56Volt)- Check DC Supply Source specification (More than 27A @-54Volt)- Check DC Output power of PSU to MCPA module (30Volt)- Check DC Current of PSU to MCPA module (less than 40A)

 FAN Alarm

► Alarm detector is failed► FAN is defected

- Check FAN (Total 4pcs, 2pcs are spare)- Check Internal and MCPA Module temperature- Temperature is stable, it is okay even there were alarm

Door Open Alarm► Door Open► Door Sensor is defected

- Check Door Sensor

Internal Tempera-ture

► FAN Fail - Check FAN

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Remote GUI & Modem Box

please check your PC and modem connection, and SIM card 2) Turn on and off Modem box 3) Insert SIM card again.

1. Local GUI and Remote GUI are optimized for O/S of Window 7 and XP. Other version of O/S cannot be suitable for GUIs and Remote Access.

2. Modem Box cannot be compatible for USB port of your PC. Please use other USB Port or your PC if there are several Pop-up menu for disconnection.

3. If the communication between GUI and Modem box are disconnected, Pop up-menu can be generated. Please click “ok” and check Modem

4. If you order several message in case that you cannot receive replies from TMB or other purpose, this modem can handle every requests from you and TMB so that this message will be come. Please restart “Remote GUI” for solving the matter or turn off /on the modem box.

5. In few case, SIM card error will be happened. You connect and check everything is OK but if the communication between GUI and TMB is not proper, Please check SIM Card connection or SIM Card Error.

6. Please erase SMS by using “SMS clean” button after finishing a site requests and controls

Trouble Shooting

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