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Thread: Dreambox picture quality

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    Member streeter75's Avatar
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    Default Dreambox picture quality

    Should there be any Picture quality differences running different images on Dreamboxes or not??

    Example:

    Running a DM7000 normally in my lounge room thru a Samsung 42inch HD Plasma
    Runs a few images PLI,Gemini, Stormbreaker to name a few , Ive notice watching FBO and a few other movie channels that the picture quality looks abit blotchy in The background, but seems crystal clear in the Foreground and uop fromt close pics....

    Just hooked up a DM500 to plasma, to test box and image,cam etc... Once I got it running with latest gemini, Ive noticed Picture quality seems to shit over the DM7000, I mean, everything seems PERFECTLY clear... No blotchyness at all...


    Questions Im after answers for......

    Is it a Individual movie or program issue thats causing this, Channel issue, is it an image based problem or is It a Box issue...


    Comments are appreciated in advance, Thanks guys...



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    Senior Member big mick000's Avatar
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    one would think it is based on hardware, not software, because of the graphics hardware? the quality of the transmission will make more of a difference from my experience. different connections between the receiver and television make a massive difference. if i'm wrong please correct me, as i am un-learned.

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    Member streeter75's Avatar
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    In saying that aswell, Take this into account, The DM7000 is an Original Model, The DM 500s is a cheap chinese clone?? Should be worse picture on the cheApy one would assume....

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    Senior Member big mick000's Avatar
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    it may also depend on the bitrate of the program, and the receiver to telly connection method, i find.

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    I concur - you would have thought that the original equipment would be heaps better than the cheapy clone -

    Doubt very much that the program or movie is your problem as well.

    It sounds like the image and configs with the DM500 are probably well matched or "mature" - No doubt the DM500 hardware has been around for a long time as well so any past past hardware problems have long been resolved.

    The DM7000 might have an issue with config or images - this still seems to conflict with how you have used different images.
    I doubt very much that the hardware design would be at fault as it is much newer than the DM500.

    It might be possible that you might have dodgy hardware or a hardware fault with your DM7000?

    I do not have a DM7000 so I can not give you any comparison with a working unit - Maybe another member who has a DM7000 can provide feedback on how they find their DM7000 picture quality ?

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    Senior Member urban_s0ulja's Avatar
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    Quote Originally Posted by big mick000 View Post
    one would think it is based on hardware, not software, because of the graphics hardware? the quality of the transmission will make more of a difference from my experience. different connections between the receiver and television make a massive difference. if i'm wrong please correct me, as i am un-learned.

    disagree....

    if the software that is telling the hardware what to do isnt upto scratch your going to get a bad picture all around. The quality on both dreambox's are scart and composite no componenent/hdmi so i dont think theres going to be a big difference there as well.

  • #7
    Senior Member big mick000's Avatar
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    okay. just going off what i know.

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    Senior Member urban_s0ulja's Avatar
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    [QUOTE=big mick000;11415]okay. just going off what i know.[/QUOT

    no sweat mate
    were all learning here

    who knows i may even be wrong

  • #9
    Senior Member big mick000's Avatar
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    try the same images on both boxes streeter?

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    Member streeter75's Avatar
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    Tried Gemini on both Not much difference, Still alittle blotching when watchin on DM7000, one thing i never mentioned is the DM7000 is running into TV via Scart to RCA converter and DM500 is running RCA to RCA. It might be a demodulation Problem.. Not sure any comments on this?

    Thanks guys

  • #11
    Member streeter75's Avatar
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    Also with DM500 there the 720 x 640 Display setting in the EPG bar when changing channels that Aint on The DM7000 image? This is just a display of DPI not a setting/changer etc so this should be irellevant ?? I think so

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    Senior Member big mick000's Avatar
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    quite possibly. conversions/converters have loss on most things, and keeping it in the same format may be the key.

  • #13
    Member streeter75's Avatar
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    Stuck with that im afraid the DM7000 only has 2 scart outputs And Optical, I suppose Im stuck with it.


    Any other options to over come this

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    Senior Member urban_s0ulja's Avatar
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    use the scart convertor with the dm500
    and u can get a fair judgement that way

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    Senior Member z80's Avatar
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    Streeter, you are supposed to use the component output on the 7000.



    I can assure you that it will be very satisfactory on component.

    It is the fault of the adapter you are using.

    The 7000 shits all over any dm500s, clone or genuine.

    am watching that config right now.....


    Someone mentioned that the dm500s has an 8 bit DAC and the 7000 a 16.

  • #16
    Member streeter75's Avatar
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    Hmmmm
    Componet Out put is no where to be found on DM7000,unless I missing something?



    Products | DreamBox DM7000

    * 250 MHz IBM PowerPC Processor (350 Mips)
    * Linux open source (most parts under the terms of GPL)
    * 1 x DVB Common-Interface Slot
    * 2 x Smartcard-Reader
    * Integrated Compact Flash Interface Slot
    * MPEG2 Hardware decoding (fully DVB compliant)
    * Common NIM DVB-S
    * 10/100 MBit compatible Ethernet Interface
    * USB Port
    * V.24/RS232 Interface
    * Big-size LCD-Display
    * 64 MByte of RAM
    * integrated IDE UDMA66 Master/Slave Interface
    * Support for internal HDD
    Support for timeshift function
    * unlimited channel lists for TV/Radio
    * channel-change time < 1 second
    * full automatic service scan
    * supports directly bouquet-lists
    * supports EPG (electronic program guide)
    * supports videotext
    * supports multiple LNB-Switching control (supports DiSEqC)
    * fully adaptable OSD in many languages and skin-support
    * S/PDIF Interface for digital bit stream out AC-3
    * 2 x Scart-interfaces (fully controlled by software)
    * MINI-DIN connector for extern IR (send)
    * intern send/receive IR (Videorecorder)

    Product | DreamBox DM7000 technical data

    DBS-Tuner:
    Frequency Range 950 …. 2150 MHz
    Signal Level - 65 dBm …. - 25 dBm
    Signal-to-Noise Level 12 dB max.
    DBS-Tuner Input Connector F-Type female
    Input Impedance 75 Ohm
    AFC +/- 3 MHz
    Demodulation Shaped QPSK
    FEC Viterbi and Reed-Solomon
    Viterbirate 1/2, 2/3, 3/4, 5/6, 7/8, automatic assimilation
    Roll-off Factor 35 %
    Demultiplexing according ISO 13818-1

    Common-Interface:
    Common-Interface Power Consumption max. 0,3A/5V

    Video decoder:
    Video Compression MPEG-2 and MPEG-1 compatible
    Video Standard PAL G/ 25 Hz
    Video Formats 4:3 / 16:9
    Footage 16:9, automatic assimilation for 16:9 TV-Device (over Scart)
    Letterbox precolating for 4:3 TV-Device

    Audio decoder:
    Audiokompression MPEG-1 & MPEG-2 Layer I and II
    Audio Mode Dual (main/sub), Stereo
    Frequency: 32 kHz, 44.1 kHz, 48 kHz, 16 kHz, 22.05 kHz, 24 kHz

    Output analog:
    Output Level L/R 0,5 Vss on 600 Ohm
    THD > 60 dB (1 kHz)
    Crosstalk < -65 dB

    Output digital:
    Output Level 0,5 Vss on 75 Ohm
    Sampled Data Filtering 32 kHz, 44.1 kHz, 48 kHz
    S/PDIF-Output optical AC3

    Video parameter:
    Input Level FBAS 1 Vss +/- 0.3 dB on 75 Ohm
    Teletext filter in conformity with ETS 300 472 Standard

    TV-Scart:
    Output: FBAS,RGB,S-VHS over OSD selectable

    VCR-Scart:
    FBAS

    Serielle Interface RS 232:
    Typ RS232 bidirectional
    Bitrate 115,2 kBit/s max.
    Plug Connector SUB-D-9
    Function Update of Firmware

    Ethernet:
    10/100 MBit compatible interface
    Function Update of Firmware, Connect to PC

    USB:
    USB 1.2 connector

    Mini DIN:
    I2C for stearing of external devices (Option Rotor)
    IR funktion

    Pins:
    1 5V
    2 SDA (I2C-Kanal 2)
    3 SCL
    4 3,3V
    7 GND
    8 IR-Output
    9 GND

    UDMA66 IDE Interface:
    Intern for connect HDD max. 500mA
    Compact Flash - Reader

    LNB power and polarisation:
    LNB Current 500mA max. ; short-circuit-proof
    LNB Voltage vertical < 14V without load, > 11,5V at 400mA
    LNB Voltage horizontal < 20V without load, > 17,3V at 400mA
    LNB shut-off at Standby-Mode

    Count of active satellite position:
    DiSEqC 1.0/1.2 SAT POSITION / SAT OPTION
    DiSEqC - Rotor Control

    Power consumption:
    < 20W (in operation, horizontal polarization / 400mA LNB current)
    < 11W (in operation, without LNB)

    Input voltage:
    230V / 50 Hz alternating acurrent +/- 15%

    Physical specification:
    Ambient Temperature +15°C...+35°C
    Humidity < 80%
    Size (W x D x H): 374 mm x 230 mm x 75 mm
    Weight: 1,8 kg without HDD

  • #17
    Junior Member RSA's Avatar
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    RGB is a type of component video output in which red, green, and blue image are transmitted as separate signals over three separate wires, allowing for full bandwidth for each component Different synchronization for RGB & YPbPr but it is a component video format



    so yes you can get RGB Component from the dm7000 scart

  • #18
    Senior Member Vic's Avatar
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    Talking

    Rofl

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    Senior Member cwispy's Avatar
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    Quote Originally Posted by streeter75 View Post
    Hmmmm
    Componet Out put is no where to be found on DM7000,unless I missing something?
    Scart to component cable buddy. Just make sure its a decent quality one. Something like this one works well

    What would you do if your server was stolen or failed beyond repair?
    http://www.2000cn.com.au/shadowprotect.html

  • #20
    Senior Member nfnovice's Avatar
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    I have a scart to component cable running out of my 7000 on YPbPr setting
    I spent some time studying quality during the recent cricket tests
    - it was excellent

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