Recent content by tvboxspy

  1. tvboxspy

    QQ-Box USB DVB-S Tuner - Unknown Device?

    It appears that VDR examines other channels on the transponder with last PID entry. Changing PID stalls the streamer, then the PID filter starts it again. Again, the only way to overcome this is to turn the PID filter off.
  2. tvboxspy

    QQ-Box USB DVB-S Tuner - Unknown Device?

    I have tried VDR, the problem is that it keeps trying to change pids while the streamer is running. I am not sure what it is doing, but it gets to the sixth pid entry and keeps swaping for pids on other channels. Unfortunately, the firmware does not support this. The only soultion is to turn...
  3. tvboxspy

    QQ-Box USB DVB-S Tuner - Unknown Device?

    remote Linux media remotes have under gone significant changes recently and many user applications are broken. If you are using less than kernel 2.6.31 it is possibly completely broken. By default lirc is loaded when the rc_core module is loaded. However, many applications do not support the...
  4. tvboxspy

    QQ-Box USB DVB-S Tuner - Unknown Device?

    All the frequencies from Nilesat 101 at 7.0°W are high band, check that the LNB is an universal type and not a special type for the receiver (pay tv). Nilesat 101 at 7.0°W - LyngSat I think the signal may just be too low and is amplified by the receiver.
  5. tvboxspy

    QQ-Box USB DVB-S Tuner - Unknown Device?

    Sounds like the noisy LNB voltage problem, and stuck in high band. Using another receivers pass through usually removes the noise. In Windows LNB voltage is on by default, so at least some channels should be present. Check the satellite you are scanning has high band channels (>11.7GHz).
  6. tvboxspy

    QQ-Box USB DVB-S Tuner - Unknown Device?

    It just a case of poor PCB design, and wrong component. Otherwise modified QQBoxes work fine. The DM04 (the black plastic boxes) have exactly the same components and have no problems in the UK.
  7. tvboxspy

    QQ-Box USB DVB-S Tuner - Unknown Device?

    The LNB is stuck in high band which starts at 11700. The L103 Problem :-( Eurobird 1 & Astra 2A/2B/2D at 28.2°E - LyngSat There are not many channels FTA Astra 28.2 on the high band. Get a refund from the supplier.
  8. tvboxspy

    QQ-Box USB DVB-S Tuner - Unknown Device?

    Sorry for the delay, here is a picture of L103.
  9. tvboxspy

    QQ-Box USB DVB-S Tuner - Unknown Device?

    The problem is that L101 and L103 are both standard ferrite cores, energy is transferred from L101 to L103 through the case. L103 was originally a toroidal type which is less prone to magnetic pick up. While changing L101 to a shielded type does help horizontal pick up, it does not eliminate...
  10. tvboxspy

    QQ-Box USB DVB-S Tuner - Unknown Device?

    I have found out that the 24C02 is not required and is internal with LME2510C. Fitting the chip may cause the firmware to malfunction. Strange that the schematic should show it, because it is still readable and writeable without it. Possible thought, perhaps that have pinched a ROM area of the...
  11. tvboxspy

    QQ-Box USB DVB-S Tuner - Unknown Device?

    The QQBOX does two things with the incoming supply, one step down to 3.3v, two step up to 13 or 18v. The supply can be anywhere between 6 and 9v and be stable. The power supply is a switch mode type, therefore small adequate supply.
  12. tvboxspy

    QQ-Box USB DVB-S Tuner - Unknown Device?

    Has anyone bought the DVB-S2 version of the QQBOX (or DM04) from china? It contains a LME2510C and a Sharp BS2F7VZ7700 tuner. The tuner itself has the same case work as the Sharp 7395. The Chinese sellers on Ebay appear to be confusing in that they show it along side the TBS model.:eek:
  13. tvboxspy

    QQ-Box USB DVB-S Tuner - Unknown Device?

    Only the USB needs be unplugged to reset the device. The power adapter should be powered up all the time. The power for the LME2510 or LME2510C chip comes only from the USB port. Sounds like the firmware is failing to download properly. The device should automatically disconnect then reconnect...
  14. tvboxspy

    QQ-Box USB DVB-S Tuner - Unknown Device?

    Hmm... Looks like it is just a rolling serial number then. I have found that the Sharp tuner is more sensitive than the LG tuner especially in a rain storm with a mini dish. The LG required a line amplifier.
  15. tvboxspy

    QQ-Box USB DVB-S Tuner - Unknown Device?

    Yes, the 7395 has the STV0288 demodulator inside.
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