Sirius SP4 (Sportster)

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • Nitro468
    Senior Member
    • Oct 2013
    • 65
    • USA

    #1

    Sirius SP4 (Sportster)

    I had a functioning SP4 till today... Boots to the splash screen then hangs..I can get to the menu options and my radio ID is blank... It is stuck on channel 184, spinning the knob does nothing, it will not direct tune to any channel..

    I can and did a "factory default" to no avail..

    Anyone have any suggestions ?

    I got the unit as a trade for some work. It sat in his daughters closet for 2 years, its a car/desk/boombox unit... The subscription ran out and it was never deactivated... Otherwise I would just buy another unit for cheap...
  • stj
    Great Sage 齊天大聖
    • Dec 2009
    • 31015
    • Albion

    #2
    Re: Sirius SP4 (Sportster)

    has it got a lithium battery in it for keeping data in the ram?
    sounds like it could be a suicide circuit involved!

    Comment

    • Nitro468
      Senior Member
      • Oct 2013
      • 65
      • USA

      #3
      Re: Sirius SP4 (Sportster)

      Interesting thought, haven't cracked it open yet.....From the research I have done, most of the units just plain suck... Mine runs hotter than I think any electronics should....

      Comment

      • Nitro468
        Senior Member
        • Oct 2013
        • 65
        • USA

        #4
        Re: Sirius SP4 (Sportster)

        Cracked it open, no battery. At 1st glance everything looks good... Not at work, lighting here sucks... Cant find any service manuals or schematics after an hour of looking...

        Comment

        • mmartell
          Badcaps Legend
          • Oct 2013
          • 3189
          • Canada

          #5
          Re: Sirius SP4 (Sportster)

          Sounds like it was desubbed but something went wrong.

          Comment

          • Nitro468
            Senior Member
            • Oct 2013
            • 65
            • USA

            #6
            Re: Sirius SP4 (Sportster)

            I don't think its de-subscribed, otherwise it would preview, change channels, and at the very least display its unique ID#.

            Comment

            Related Topics

            Collapse

            • eccerr0r
              old X58 triple channel board... memtest86 memory speed?
              by eccerr0r
              Anyone run memory speed tests with an old X58-based triple channel 1st gen or any other >2 channel board? The one I have is a Gigabyte I think.

              Anyway I had four 4GB DDR3-1333 modules in the 6 memory slots and got around 11GB/sec memory speeds assuming that it went dual channel since it didn't have enough modules for triple channel. Now I stuck in two more 4GB modules, but they are DDR3-1600. I'm still getting 11GB/sec speeds according to memtest86...

              Just wondering, anyone do memory speed analysis on these triple (and higher) channel memory boards? Are there any...
              06-28-2025, 09:06 AM
            • spleenharvester
              Reverse engineering of 18650 4-channel tester
              by spleenharvester
              Hi friends

              I have reverse engineered this tester, schematic is attached and is complete except for capacitor values. These testers annoyingly have no model number but they are the ones you find on the first page of just about any website if you type in "18650 4-channel tester". There is also a 2-channel variant and a newer 8-channel variant. They are very cheap (about £15) and can measure voltage, current, internal resistance and capacity. They have a multicolour display for all these statistics. They also have terminal blocks so that if you want to use a breakout board...
              05-04-2025, 02:43 AM
            • dicky96
              American Audio VLP1500 Distorting on one channel
              by dicky96
              Hi guys I have a VLP1500 amplifier here - one channels works fine and the other channel distorts even at low volume settings

              Protection and Clip LED are off

              There is something wrong with the BIAS voltages around T16 and T18 (in particular) on the bad channel

              I tested all diodes and transistors in this area in circuit with diode mode - both channels seem identical. Same in resistance mode across all the resistors here.

              The output DC voltages on pin1 and pin8 of the 5532D dual op amp at the input of each amplifier module are the same, and the audio...
              07-13-2022, 05:25 AM
            • dicky96
              Hitachi V19B01922 Channel Tune problem
              by dicky96
              Hi Guys
              I have a customer who has two Hitachi TVs in his bar, one is the model in the thread title and the other is a larger screen but has the same setup menu

              He also has an LG TV, so three screens in the bar

              I installed three Satlink ST-6503 DVB-T Modulators
              This model https://www.aliexpress.com/item/32916553905.html

              These connect to three satellite receivers via HDMI cables and then connect to a 4 way RF Amp that connects to the TVs on aerial cable. There is no incoming terrestrial antenna. I set the channel ID on the modulators to...
              02-09-2023, 09:20 AM
            • sima112
              Marantz pm 6005 right channel not worknig
              by sima112
              Hi guys,
              I need a help with my Marantz pm6005. It started to have weaker the right channel a few months ago, than it got back to normal and now it has lost sound completely on the right channel. At the final stage it was loosing the channel for a while and than it returned. After it has disappeared completely I could forced it back by unplugging the source form CD (which I normally use) to phone and back. It would then work for a few minutes and died again. Now it is possible power up and all function works normally (apart the right channel ) on all inputs, except the phone both channel...
              01-30-2023, 12:11 PM
            • Loading...
            • No more items.
            Working...