I have no idea what your talking about. AND when I take the TSCU out of the Cooley and plug it in it works just fine. So I doubt its any reed sensor thingy.
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Tscu rebuilding
- Thread starter chuck hahn
- Start date
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Guest
Guest
What I'm talking about is that a bad distance counter can keep the turn signal unit from operating properly, it's part of the circuit and can be unplugged in the headlight. If it works properly out of the bike, it is likely the reed switch (distance counter) could cause the problem. It's in your speedometer and connects to the TSCU with two connectors in the headlight bucket.
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Oldvet66...The unit DOES NOT work out of the bike or in the Cooley. The Cooley one works when i plug it into the skunk the same as it works in the Cooley..both blink. So this is telling me that the reed switch is a moot point..am i correct? I dont use the self cancelling as i just flick my thumb down and manual camcell anyways. If the skunk one doesnt work in either bike, but the Cooley one works in both, then i am running with it being the TSCU has lost the right side again.
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Guest
Guest
Sorry, misunderstood your wording.
And another quandry?? As i have read different threads about the failures, i have noticed a disproportionate amount seem to be the right side stops...wonder why this is so? If they made the left circuitry so well, then what explains why the right side sux so bad???
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Guest
Guest
Mine messes up on the left (occaisionally) other than that it's fully functional.
M
Matchless
Guest
Chuck,
Here is the schematic for the "newer" self cancelling setup:
Here is the schematic for the "newer" self cancelling setup:
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M
Matchless
Guest
Here is the schematic for the "older" unit:
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Andre, on the B/Bl flasher inhibit wire, does it use earth or B+ to cancel flasher relay?
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Matchless
Guest
Thanks Andre! it was the only thing I couldn't garner without the bike in front of me.
Dale...soon as you get it all figured out let me know...I will pay you to build me a better one..LOL
M
Matchless
Guest
Dale,
I noticed that the later model schematic has very poor wire colours and I will try and redraw it with clearer colours and replace it.
Chuck,
The newer TSCU is unfortunately married to the later handlebar direction switch. You will have to replace them as a pair if you want to upgrade
I have a schematic drawn up for the newer type, but it has some component values missing and has not been cross checked yet.
I noticed that the later model schematic has very poor wire colours and I will try and redraw it with clearer colours and replace it.
Chuck,
The newer TSCU is unfortunately married to the later handlebar direction switch. You will have to replace them as a pair if you want to upgrade
I have a schematic drawn up for the newer type, but it has some component values missing and has not been cross checked yet.
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Andre, it's not necessary for you to do that on my account. I already traced the copies I brought to work during my lunch hour.
now I'm looking up a suitable relay with momentary latch and unlatch coils. I had one looked up some time ago, but somehow I lost the bookmark.
M
Matchless
Guest
Andre, it's not necessary for you to do that on my account. I already traced the copies I brought to work during my lunch hour.
now I'm looking up a suitable relay with momentary latch and unlatch coils. I had one looked up some time ago, but somehow I lost the bookmark.
Dale, updated the schematic, just in case someone else also wanted to use it.
I looked for latching relays a while back and they were very expensive out our way and very little to choose from.
I have also used a SCR to latch a relay, but needed to manually interupt the circuit with another relay or switch to release it. The old VW Beetles had a headlight relay that flip-flopped for high and low.
Andre, in digging around I saw where someone used a 1970 beetle headlamp relay as well.
no big issue as we can always use regular relays to do the same thing. you just need to use more of them, and more equals space.
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Guest
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I thought about that possibly being the case.
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bakalorz
Guest
I am eventually planning to basically make my own TSCU with a PIC microproccessor, and seeing this thread has got me re-motivated ...
The big holdup for me is that I need to get one of the proper left handlebar switches.
I currently can turn my headlight off and would really not like to lose that functionality.
So my question is what GS years and models have a left hand switch that works with a TSCU and also has a headlight on/off switch. (not just hi/low beam, but actual on/off too)
(and, since it apparently matters, which TSCU do they use, the old or the new style)
After that, I guess its time to haunt E-bay ...
After I design and build it, I will release info on it if anyone else wants to build their own.
(If there would be enough demand, I'd make em to sell for $50 or $60 too)
P.S. ... I will guess that if your bike didn't come with a TSCU there is no reed switch ... what do you think of the idea of linking to the brake light instead ... so if the signal normally cancels after say 5 seconds, it won't start timing that five seconds until the brakes are released ...
M
Matchless
Guest
Martin, my 1980 has the light switch on the right handlebar controls as they were standard for our country at the time.
How about one TSCU that will replace either type?
How about one TSCU that will replace either type?
Martin, Martin (wallowgreen) has already built one of the first generation TSCU's. it might pay to PM him any questions/thoughts/issues you might have before you start back into designing your own.
for second part of your question, as far as I know the 78-79 GS1000E's, the 79 GS850G's and the 79 L models used the same switch.
and lastly, personally I wouldn't use the release of the brake light for the start point of a count down timer. at a stop, when some is approaching from behind, I like to modulate the brake light.
for second part of your question, as far as I know the 78-79 GS1000E's, the 79 GS850G's and the 79 L models used the same switch.
and lastly, personally I wouldn't use the release of the brake light for the start point of a count down timer. at a stop, when some is approaching from behind, I like to modulate the brake light.
