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Linkstar S2A,S2 (DvB S2A,S2)

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Ex Member
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Jun 19th, 2008 at 8:38am  
Dear All Engineer Vsat

Can your help me my modem linkstar S2 display show ?  

a. Password:I2C Read Failed  HuhWhats that mean ?

and Parameter modem

tcmp
   Standard       DVB-S2    Synced    0
   BCHCorrectedErrCount     458745    BCHUncorrectedErrCount   458745
   UncodedBER   0.00006173122    I2CErrorCount       2
   LostSyncCount       0    TimeSynced             0
   TimeUnSynced        0    MaxTimeSynced       0
   CarrDeviation         0.0004062168     NCODeviation   0
   LdpcBch                  LOCKED    CarrierPhase   LOCKED
   frequency               0    ModCode      N/A
   Rs                           0    Fs        0
   RxPower                  3    EbNo      0
   Pilot                     Off    FrameLength     64800

pconf
KSET BootConf
 Item 1. Addr 2193e0, Key 0 0x0 ItemMark 1 ArrayPos 0
   termid                    0x2acc8    popid       0x11e0002
   ctlPID                     0x1029    pcrPID     0x365
   TDMCarrierFreq      1485375    SymbolRate    2500000
   MaritimeEnabled     0    Latitude       0
   Longitude               0    TxPower      -20
   ODUStatus             INTERNAL    VCXOPar1     0x0
   VCXOPar2              0x0    TimingLoopBW      0x0
   Signature                0x0    isEncryptionEnabled      0
   isRnccKeyValid         0    isRcstKeyValid      0
   PointingTool             0    LNBVoltage    18
   LNBVoltageIncrease  0    LNBToneOn      0
   DVBMode    DVBS2    vcoplan        0

b. the RX power= 3  can not recive from hub, rx output 18 VDC,and led power on, led odu on, led alrm off, led sat off.but in command tcmp not show the freq ?>?

if any know thats problem please email to me in nurdin.kamaludin@gmail.com
Tankyu

Best regards,



nurdin
Ym :  nun1996@yahoo.com
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Eric Johnston
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Reply #1 - Jun 19th, 2008 at 10:21am  
Is the symbol rate correct ?

2500000 may be correct if you are in a small network.
Large networks tend to use symbol rates like 25000000

Best regards, Eric.
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Reply #2 - Jun 26th, 2008 at 3:55am  
Dear Mr. Erick


This is configuration exciting . i capture from my sellf,....

03 11 9E

Tanggal 23 juni 2008


pconf
KSET BootConf
  Item 1. Addr 21c6a8, Key 0 0x0 ItemMark 1 ArrayPos 0
    termid                  0x3119e    popid                 0x11e0003
    ctlPID                   0x1029    pcrPID                    0x365
    TDMCarrierFreq          1485375    SymbolRate              2500000
    MaritimeEnabled               0    Latitude                      0
    Longitude                     0    TxPower                     -10
    ODUStatus              INTERNAL    VCXOPar1                    0x0
    VCXOPar2                    0x0    TimingLoopBW                0x0
    Signature                   0x0    isEncryptionEnabled           0
    isRnccKeyValid                0    isRcstKeyValid                0
    PointingTool                  0    LNBVoltage                   18
    LNBVoltageIncrease            0    LNBToneOn                     0
    DVBMode                   DVBS2    vcoplan                       0

tcmp
    Standard                 DVB-S2    Synced                        1
    BCHCorrectedErrCount    7833154    BCHUncorrectedErrCount     1222
    UncodedBER         0.0006137625    I2CErrorCount                 0
    LostSyncCount                 0    TimeSynced                 1747
    TimeUnSynced                  0    MaxTimeSynced              1747
    CarrDeviation                 0    NCODeviation                  0
    LdpcBch                  LOCKED    CarrierPhase             LOCKED
    frequency                  1485    ModCode                8PSK 3/4
    Rs                     2.500000    Fs                          100
    RxPower               -39.13000    EsNo                         16
    Pilot                        On    FrameLength               64800

BER 0.0006137625
Buffer Level 0


The symbol rate is true 2500000

rgds,
nurdin

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Reply #3 - Jun 26th, 2008 at 8:40am  
Is it working normally now ?

Don't worry about the uncorrected error counts unless they are actually increasing.  Repeat tcmp command and see if the uncorrected error count has increased.   When you power on the modem, the count is zero.  After start up the count may have increased during the initial carrier acquisition.  Any interruption of the beam, pointing movements etc will also create outages and increase the count, as will severe rain attenuation. The uncorrected error count may stay the same for several or many hours.

Best regards, Eric.
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Reply #4 - Jun 26th, 2008 at 10:20am  
Dear Mr. Erick

I use two antena & two modem in the same time & same place to know the modem is normali or not, but one modem is not good & then other modem is good/normal.
FYI in the modem linkstar S1 if this case same i replace Tuner IC MAX21...  and then its normal again. but in the modem S2 and S2A i dont know to repair because the tuner ic is not same with Linkstar S1. can your tell me which one ic tuner i have to replace if the modem S2 dosen't recive. the ic = STB0899 or STB6100 ?


Best Regards,

Nurdin
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Eric Johnston
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Reply #5 - Jun 26th, 2008 at 11:36am  
I don't know. 

You could try contacting ViaSat directly for tech support regarding repairs.  They have a LinkStar repair centre at Skylogic in Italy, and in the US.   They may insist that you send the entire modem for repair using their RMA procedure.  Find out the cost in advance since the cost may be not far short of that for a new modem, so consider simply getting a new modem also.

Best regards, Eric.
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Reply #6 - Jun 27th, 2008 at 8:50am  
dear eric,

my modem show :
COSMON Status: LossOfClock
and rebooting after show that ?
if the modem not reboot show :
Password:
Password:
Password:
Password:
Password:
can you tell me whay ?

rgds,

nurdin
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« Last Edit: Jul 2nd, 2008 at 7:31am by N/A »  
 
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