Announcement

Collapse
No announcement yet.

Tscu rebuilding

Collapse
X
Collapse
 
  • Page of 6
  • Filter
  • Time
  • Show
Clear All
new posts
Previous 1 2 3 4 6 template Next
    #1

    Tscu rebuilding

    I have been using search feature and looking for info about rebuilding the TSCU. Has anyone here tried to unravel the secrets? I dont particularly care if it self cancells or not. The thing is that for some reason the right side always quits working. I got one from Sedelen a while back and it worked to make both sides flash...now it has also failed on the right side. I took the one out of the Cooley and plugged it in and that unit functions on both sides so i know its the TSCU in the skunk that has lost its right side...again.
    MY BIKES..1977 GS 750 B, 1978 GS 1000 C (X2)
    1978 GS 1000 E, 1979 GS 1000 S, 1973 Yamaha TX 750, 1977 Kawasaki KZ 650B1, 1975 Honda GL1000 Goldwing, 1983 CB 650SC Nighthawk, 1972 Honda CB 350K4, 74 Honda CB550

    NEVER SNEAK UP ON A SLEEPING DOG..NOT EVEN YOUR OWN.


    I would rather trust my bike to a "QUACK" that KNOWS how to fix it rather than a book worm that THINKS HE KNOWS how to fix it.
    Tags: None
    #2
    I think I left my old non-functioning POS there...if you throw it in that box 'o stuff, I'll take it apart and see if I can reverse-engineer it.
    1982 GS1100GL (Sold )(Retrieved!)
    1978 GS1000C (Sold, to be revived by Chuck)
    1979 GS1000EN (Parts Whore)
    1979 GS1000C (Collecting Dust)
    1980 GS750E (Sport-Touring Build...Someday?)
    1981 GS750L (Abandoned Project...maybe?)
    1982 GS750E (Collecting Dust)
    1983 GS750T (This is becoming a problem...)
    1981 GS650GL (Parts Whore / Cafe Donor)
    1981 GS550L (Cafe Project)

    Comment

      #3
      Yeah its out in the garage..somewhere.
      MY BIKES..1977 GS 750 B, 1978 GS 1000 C (X2)
      1978 GS 1000 E, 1979 GS 1000 S, 1973 Yamaha TX 750, 1977 Kawasaki KZ 650B1, 1975 Honda GL1000 Goldwing, 1983 CB 650SC Nighthawk, 1972 Honda CB 350K4, 74 Honda CB550

      NEVER SNEAK UP ON A SLEEPING DOG..NOT EVEN YOUR OWN.


      I would rather trust my bike to a "QUACK" that KNOWS how to fix it rather than a book worm that THINKS HE KNOWS how to fix it.

      Comment

        #4
        Originally posted by stahlgrau330 View Post
        I think I left my old non-functioning POS there...if you throw it in that box 'o stuff, I'll take it apart and see if I can reverse-engineer it.
        It's potted.

        I've one apart right now almost completely un-potted. be careful, the caps like to blow apart when you heat up the potting material.
        De-stinking Penelope http://thegsresources.com/_forum/sho...d.php?t=179245

        http://www.thegsresources.com/_forum...35#post1625535

        Comment

          #5
          Dale..It seems to me that the switch sends the connection thru the same plug for each side..IF i am remembering right its the 6 pin one. So whats the 4 pin one for? Can the cicuitry be reroputed and make both function but just not have the self cancelling. Do an endo and bypass that inside the box?
          MY BIKES..1977 GS 750 B, 1978 GS 1000 C (X2)
          1978 GS 1000 E, 1979 GS 1000 S, 1973 Yamaha TX 750, 1977 Kawasaki KZ 650B1, 1975 Honda GL1000 Goldwing, 1983 CB 650SC Nighthawk, 1972 Honda CB 350K4, 74 Honda CB550

          NEVER SNEAK UP ON A SLEEPING DOG..NOT EVEN YOUR OWN.


          I would rather trust my bike to a "QUACK" that KNOWS how to fix it rather than a book worm that THINKS HE KNOWS how to fix it.

          Comment

            #6
            They're a pain in the arse to reverse engineer, they're potted against the elements so all you'll see at first is the wiring dissappearing into a container full of goop.

            The same thing happened on my '79 but I had the luxury of sitting down and designing and building my own around a small Motorola uP. Noise in the system was the worst problem causing false triggers, the wiring from the switch on the handlebar typically runs right through where all the high voltage switching's going on at the coils. Not insurmountable but took a while to figure out though. I have one of mine on the 850 now, have had for a couple of years. I have it switched to manual but it does work with the original momentary non-latching switch and plugs directly into the OEM connectors from the harness so no modifications necessary. Plug and play as they say. I intended to make a few and sell them on at cost but cost wound up being something like $150 so didn't seem that viable in the end, especially as I'd have to provide some kind of support if they went wrong etc. Made mine with sample parts (another luxury of mine I guess) so only cost me for the box, circuit board and the development suite for the firmware to run on the uP, bout $35 in all I think.

            I assume you're talking about the early version (ref the skunk) with 10 wires coming out of it to two plugs, one with 6 wires and the other with 4 wires. These were not fail safe. The later version from '80 onwards only has one plug to the harness and is fail safe so if they go belly up, just disconnect them from the harness and hey presto you have fully manual control.

            Hope that bit of waffle helps in some way Chuck...
            Last edited by Wallowgreen; 08-03-2011, 06:48 PM. Reason: spellinz
            It's smoke that make electronic components work.
            Every time I've let the smoke out by mistake, they never work again.
            '80 GS250T... long gone... And back!
            '86 Honda Bol D'Or... very sadly long gone
            '82 GS1000SZ
            '82 GS1100GL
            '01 Honda CBR1100XX BlackBird

            Comment

              #7
              Originally posted by rustybronco View Post
              It's potted.

              I've one apart right now almost completely un-potted. be careful, the caps like to blow apart when you heat up the potting material.
              Beat me to it again...
              It's smoke that make electronic components work.
              Every time I've let the smoke out by mistake, they never work again.
              '80 GS250T... long gone... And back!
              '86 Honda Bol D'Or... very sadly long gone
              '82 GS1000SZ
              '82 GS1100GL
              '01 Honda CBR1100XX BlackBird

              Comment

                #8
                Originally posted by chuck hahn View Post
                Dale..It seems to me that the switch sends the connection thru the same plug for each side..IF i am remembering right its the 6 pin one. So whats the 4 pin one for? Can the cicuitry be reroputed and make both function but just not have the self cancelling. Do an endo and bypass that inside the box?
                No. Doesn't work that way in the early version.

                There's a couple of relays (I presume) in them that makes the connection from flasher to light pair and no way to statically connect something that needs to change dynamically. Without some rewiring and switch changes etc.

                Later version uses the switch to route from the flasher to the light pair and the controller has a "disable" signal it sends to the flasher unit to provide the auto cancel feature.
                Last edited by Wallowgreen; 08-03-2011, 06:40 PM.
                It's smoke that make electronic components work.
                Every time I've let the smoke out by mistake, they never work again.
                '80 GS250T... long gone... And back!
                '86 Honda Bol D'Or... very sadly long gone
                '82 GS1000SZ
                '82 GS1100GL
                '01 Honda CBR1100XX BlackBird

                Comment

                  #9
                  I would GLADLY send you 150.00 to have it rebuilt so that both flashed reliably. I always flick my thumb down anyways so the self cancelling thing is of no importance to me.
                  MY BIKES..1977 GS 750 B, 1978 GS 1000 C (X2)
                  1978 GS 1000 E, 1979 GS 1000 S, 1973 Yamaha TX 750, 1977 Kawasaki KZ 650B1, 1975 Honda GL1000 Goldwing, 1983 CB 650SC Nighthawk, 1972 Honda CB 350K4, 74 Honda CB550

                  NEVER SNEAK UP ON A SLEEPING DOG..NOT EVEN YOUR OWN.


                  I would rather trust my bike to a "QUACK" that KNOWS how to fix it rather than a book worm that THINKS HE KNOWS how to fix it.

                  Comment

                    #10
                    Martin, if those units cost around $150 to build, I think that's going to be a deal breaker for most people.

                    it might be best to build a few 'replacements' out of latching relays instead.
                    De-stinking Penelope http://thegsresources.com/_forum/sho...d.php?t=179245

                    http://www.thegsresources.com/_forum...35#post1625535

                    Comment

                      #11
                      Originally posted by chuck hahn View Post
                      I would GLADLY send you 150.00 to have it rebuilt so that both flashed reliably. I always flick my thumb down anyways so the self cancelling thing is of no importance to me.
                      Never had a problem with mine.... yet!
                      It's smoke that make electronic components work.
                      Every time I've let the smoke out by mistake, they never work again.
                      '80 GS250T... long gone... And back!
                      '86 Honda Bol D'Or... very sadly long gone
                      '82 GS1000SZ
                      '82 GS1100GL
                      '01 Honda CBR1100XX BlackBird

                      Comment

                        #12
                        And Martin..yes its the 10 wire..4 pin/6 pin connector style.
                        MY BIKES..1977 GS 750 B, 1978 GS 1000 C (X2)
                        1978 GS 1000 E, 1979 GS 1000 S, 1973 Yamaha TX 750, 1977 Kawasaki KZ 650B1, 1975 Honda GL1000 Goldwing, 1983 CB 650SC Nighthawk, 1972 Honda CB 350K4, 74 Honda CB550

                        NEVER SNEAK UP ON A SLEEPING DOG..NOT EVEN YOUR OWN.


                        I would rather trust my bike to a "QUACK" that KNOWS how to fix it rather than a book worm that THINKS HE KNOWS how to fix it.

                        Comment

                          #13
                          Which??? the original or one youve rebuilt???
                          MY BIKES..1977 GS 750 B, 1978 GS 1000 C (X2)
                          1978 GS 1000 E, 1979 GS 1000 S, 1973 Yamaha TX 750, 1977 Kawasaki KZ 650B1, 1975 Honda GL1000 Goldwing, 1983 CB 650SC Nighthawk, 1972 Honda CB 350K4, 74 Honda CB550

                          NEVER SNEAK UP ON A SLEEPING DOG..NOT EVEN YOUR OWN.


                          I would rather trust my bike to a "QUACK" that KNOWS how to fix it rather than a book worm that THINKS HE KNOWS how to fix it.

                          Comment

                            #14
                            Originally posted by rustybronco View Post
                            Martin, if those units cost around $150 to build, I think that's going to be a deal breaker for most people.

                            it might be best to build a few 'replacements' out of latching relays instead.
                            I figured exactly the same thing Dale, that's why I never went any further with it.
                            It's smoke that make electronic components work.
                            Every time I've let the smoke out by mistake, they never work again.
                            '80 GS250T... long gone... And back!
                            '86 Honda Bol D'Or... very sadly long gone
                            '82 GS1000SZ
                            '82 GS1100GL
                            '01 Honda CBR1100XX BlackBird

                            Comment

                              #15
                              Originally posted by chuck hahn View Post
                              Which??? the original or one youve rebuilt???
                              The one I built. NOT a rebuild, nothing of the original left.
                              It's smoke that make electronic components work.
                              Every time I've let the smoke out by mistake, they never work again.
                              '80 GS250T... long gone... And back!
                              '86 Honda Bol D'Or... very sadly long gone
                              '82 GS1000SZ
                              '82 GS1100GL
                              '01 Honda CBR1100XX BlackBird

                              Comment

                              Previous 1 2 3 4 6 template Next
                              Working...
                              X