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ART TPS II not working

Discussion in 'Recording' started by Hart, Apr 12, 2007.

  1. Hart

    Hart Guest

    So a few years ago in a fit of stupidity I went blindly off a salesperson's suggestion and bought an Art TPS II.

    It's been sitting unused for a long long time. Today I thought "gee, I'll think I'll try to sell it."

    Long story short, when I plugged it in to test it the lights in the VU meters are not lighting but the meters are working. Other than that I think it's working as designed.

    Now I recall reading about someone having a similar problem a while back but I can't find that post for the life of me. Maybe I just suck at searching, I dunno.

    Anyway, I cracked the case thinking it's a fuse. I don't see any fuses but I did find a bit of a mess over by all the caps.

    So now my questions:

    1. What is that mess and should I worry about it?

    2a. Should I try to fix the unit and sell it? If so, any ideas how?

    2b. Should I try to sell the unit as is?

    2c. Should I say to heck with it and use it as a door stop?

    Thanks in advance for any help.
     
  2. Link555

    Link555 Well-Known Member

    Often electronics manufactures try to help large electrolytic capacitors stay put, by gluing or potting them in place. From your the goop in your photo it does not look like silicon or hot melt, it might be an epoxy though. Is it around all of the bigger caps?

    Does it seem come from one source or equally distributed around each large cap?
     
  3. drumist69

    drumist69 Active Member

    Is it possible the caps leaked? I know next to nothing about electronics, but I know caps can leak. No idea, but is this what that looks like? Andy
     
  4. Link555

    Link555 Well-Known Member

    Yes caps can leak, but that looks like they all leaked, thats pretty darn hard to do. Possible yes, likely no.
     
  5. drumist69

    drumist69 Active Member

    Maybe apply some Sherlock Holmes here? If that's what it looks like, no matter how unlikely, must be the case? FWIW, Andy
     
  6. Link555

    Link555 Well-Known Member

    I have seen brown expoxy that looks like that once or twice.

    I guess another question is the stuff hard like expoxy or goey or powdery?
     
  7. Hart

    Hart Guest

    Man you guys are smart.

    Yeah, it's hard like epoxy. At first I thought it looked like a leak the way it "runs" over the board. But now I see it's more like when you apply a continuous bead of caulk... or glue.

    Problem, or lack of one solved. Thanks!

    Now I just gotta figure out why the two vu's don't light up. I suppose it's possible both bulbs blew from something. I'll have to check that.

    Thanks!
     
  8. Link555

    Link555 Well-Known Member

    No problem. Like you said The VU's are just bulbs, should be able to change em out. So I am curious how terrible sounding is the unit? The build quality in the pic, looks like typical A.R.T., Awful Rubish Typically.
     
  9. Kapt.Krunch

    Kapt.Krunch Well-Known Member

    What brand and values are those larger caps?

    That's hilarious that they are doing the same thing Behr&%$# does to get that "warm tube glow" by putting some yellowish-orange LEDs behind the tube! Behr&%$# probably copied that idea! Don't worry about the VUs...just make sure that tube is glowing! :lol:

    Kapt.Krunch
     
  10. Hart

    Hart Guest

    I put the lid back on already. The caps are 85 degree ones though, I did notice that... mainly because I'm looking at a John Hardy M1 and he uses 105's.

    Digging further, I decided it's just too much trouble to get to the meters. There's some thin metal bars soldered in that are in the way. So I'd have to remove them, put them back, pray I didn't screw anything up.

    Nah, they work they just don't light up. I think I'll put it on craigslist as is.

    How does it sound? I'm a voiceover guy, I had paired it with a Rode NT1000 and a DBX 166 compressor with okay results. Not great but okay. I put my MKH416 through it and it just sounds terrible. And that's my goto mic now, so the tps II never gets used.
     
  11. Link555

    Link555 Well-Known Member

    Dito on the orange LED Glow, gimic gimic gimic....

    I once saw a sound card PCI based, meant to go in the pc, witha 12AX7on it, thats just wrong on so many levels.
     
  12. Hart

    Hart Guest

    Is it so wrong? Just reading about it made me spit coffee up my nose. That's gotta be worth something.
     
  13. JWHardy

    JWHardy Active Member

    Your photos are not as clear as I would like for detective work, but it looks like the manufacturer used some kind of glop to hold the capacitors in place. If the capacitors leaked, you would see corrosion on the p.c. board because the electrolyte is very corrosive.

    John Hardy
    The John Hardy Co.
    http://www.johnhardyco.com
     
  14. Hart

    Hart Guest

    John,

    Thanks for the reply. The pictures aren't as clear as I had hoped. There is no corrosion. And there is no bulging or popped x's.

    After looking at it further, it's at the base of all the capacitors so I belive you are right.

    Funnily enough, I'm selling this unit along with some other gear and upgrading to your M1 to pair with my 416.

    This may be a rookie thing to say, but it's just so awesome that you posted.

    Thanks again.
     
  15. RemyRAD

    RemyRAD Guest

    And we must not forget the capacitor debacle that occurred in the early 1990s when I believe it was Siemens-Neve or was that SSL that had a really terrible problem with an underrated electrolytic capacitor/capacitors that leaked all over the circuit boards, virtually destroying numerous $250,000 consoles that all had to be repaired/replaced and retrofitted with all brand-new electrolytic capacitors. Remember that one guys??

    I'm glad I never owned one of those!
    Ms. Remy Ann David
    who owns the old stuff
     
  16. moonbaby

    moonbaby Mmmmmm Well-Known Member

    It must have been a Siemens-Neve. If it was an SSL, there would have been an assistant to do the leaking for the caps! I'll bet it's meters had blown bulbs, too.
     
  17. TVPostSound

    TVPostSound Guest

    It was AMS/Neve, I would literally hear a cap blow in the middle of a mix!!
    I was using a VRP, luckily there was a twin in the other room, and the
    modules were easily swapped!!

    It was however funny when I was given 3 days off so the Neve tech could
    replace the caps in 144 modules (72 modules per board!!!)

    Alan Sides bought those turkeys!!!!
    Made a 96 input from the two:

    http://www.oceanwaystudios.com/studiob.htm
     
  18. RemyRAD

    RemyRAD Guest

    Yup! And I thought it was tough replacing all of the electrolytic capacitors in my 2 old vintage, 36 input Neve desks? 20 per channel to be exact. That's nothing compared to one of those Siemens "VRx" series consoles!

    Thanks for the memory refresh TVPostSound !
    Ms. Remy Ann David
     
  19. TVPostSound

    TVPostSound Guest

    It was great back then, I had 72 mic pres to choose from, all the same!!!!

    U87 into the Neve, insert an LA2A, print to 456 tape.
    Sounded amazing, and to this day, I cant recreate it on my Protools!!!!



    And I thought you would end your post with "Thanks for the mammaries" :roll:
     
  20. RemyRAD

    RemyRAD Guest

    "B" cups are no problem here. But thanks. Actually glad they aren't larger.

    Big head, small cup size
    Ms. Remy Ann David
     

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