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1Back to top Go down   GEAR INDICATOR - LCD Empty GEAR INDICATOR - LCD Wed Sep 27, 2017 2:15 pm

WINGLESS

WINGLESS
active member
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Hi Everyone,

'85 K100RS
Managed to get a second hand LCD display module. No marks or "ink bleed", fitted ok all segments working fine but display very faint. Any ideas folks?
thanks
Ian

    

2Back to top Go down   GEAR INDICATOR - LCD Empty Re: GEAR INDICATOR - LCD Wed Sep 27, 2017 2:49 pm

charlie99

charlie99
VIP
VIP
perhaps the carbon connection strip (rubbery block between lcd and pc board ) is not conducting quite properly

and needs reseating - cleaning along the conductive edges both top and bottom
isopropyl alcohol on a cotton bud  should work  and very light touches to the rubbery stuff

and clean the pcboard connections where the conductive blocks make contact

just a suggestion


__________________________________________________
cheezy grin whilst riding, kinda bloke ....oh the joy !!!! ...... ( brick aviator )

'86 K100 RT..#0090401 ..."Gerty" ( Gertrude Von Clickandshift ) --------O%O
'86 k100 rs.. #######..  "Fred " (f(rame) red ) ( Fredrick leichtundschnell ) - -
bits and pieces from many kind friends across the k100 world ...with many thanks ..
1987 k100rs ########   "Red"  - (red sports rs TWB style )
1989 K100rt #009637   "Black Betty"  (naked rt ala Nigel , now sporting an rs main fairing )
    

3Back to top Go down   GEAR INDICATOR - LCD Empty GEAR INDICATOR - UPDATE Tue Oct 03, 2017 2:30 pm

WINGLESS

WINGLESS
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Thanks to charlie99 for suggestions.

Unfortunately cleaning plus alternative "rubber" pads did not improve the situation.

Bit the bullet at the weekend and managed yesterday to convert display from LCD to LED.
Well pleased with result.
I would post a picture but don't know how to join savimg.com which I understand is necessary for forum purposes.

Ian

    

4Back to top Go down   GEAR INDICATOR - LCD Empty Re: GEAR INDICATOR - LCD Tue Oct 03, 2017 2:48 pm

Laitch

Laitch
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WINGLESS wrote:I would post a picture but don't know how to join savimg.com which I understand is necessary for forum purposes.
To post my first image, I simply clicked on the Host an image icon, which is the left-most icon in the upper right group of icons in the toolbar. After that, I just followed instructions like the drone that I am and successfully downloaded an image from my computer.  It wasn't nearly as interesting as swapping out an LCD for LSD. Smile


__________________________________________________
1995 K75 90,000 miles
    

5Back to top Go down   GEAR INDICATOR - LCD Empty Re: GEAR INDICATOR - LCD Tue Oct 03, 2017 3:19 pm

WINGLESS

WINGLESS
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GEAR INDICATOR - LCD 20171015


Picture attached ( I hope).
Ian

    

6Back to top Go down   GEAR INDICATOR - LCD Empty Re: GEAR INDICATOR - LCD Tue Oct 03, 2017 6:18 pm

MartinW

MartinW
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Wingless a very interesting conversion. What was involved in doing the conversion, was it a direct replacement? A lot of inmates would be highly interested.
Regards Martin.

    

7Back to top Go down   GEAR INDICATOR - LCD Empty Re: GEAR INDICATOR - LCD Tue Oct 03, 2017 7:00 pm

blaKey

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"A lot of inmates would be highly interested."

Yep, a lot!


__________________________________________________
Neil
K100RS 1986 RED!

Dress for the ride and the potential slide.
    

8Back to top Go down   GEAR INDICATOR - LCD Empty Re: GEAR INDICATOR - LCD Tue Oct 03, 2017 11:14 pm

Rick G

Rick G
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admin
MartinW wrote:Wingless a very interesting conversion. What was involved in doing the conversion, was it a direct replacement? A lot of inmates would be highly interested.
Regards Martin.
Oh Martin get with the times they're called "clients" now days. Just as silly but not inmates although it is a better description:lol:
And yes Ian very interested.


__________________________________________________
"Man sacrifices his health in order to make money.
Then he sacrifices money to recuperate his health.
And then he is so anxious about the future that he does not enjoy the present; the result being that he does not live in the present or the future; he lives as if he is never going to die, and then dies having never really lived."   Dalai Lama


Bikes 1999 K1100 LT with a Big Block 1200
    

9Back to top Go down   GEAR INDICATOR - LCD Empty Re: GEAR INDICATOR - LCD Wed Oct 04, 2017 4:00 am

MartinW

MartinW
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Rick I thought inmates would be better than Knutcases, or Fruit Loops. GEAR INDICATOR - LCD 44271
Regards an apologetic and contrite Martin.

    

10Back to top Go down   GEAR INDICATOR - LCD Empty Re: GEAR INDICATOR - LCD Wed Oct 04, 2017 4:36 am

charlie99

charlie99
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some have done this before

there was a post for the wiring change and the type of led display used ..not so long ago ...

cant find it ...yet

try the search engine ?


__________________________________________________
cheezy grin whilst riding, kinda bloke ....oh the joy !!!! ...... ( brick aviator )

'86 K100 RT..#0090401 ..."Gerty" ( Gertrude Von Clickandshift ) --------O%O
'86 k100 rs.. #######..  "Fred " (f(rame) red ) ( Fredrick leichtundschnell ) - -
bits and pieces from many kind friends across the k100 world ...with many thanks ..
1987 k100rs ########   "Red"  - (red sports rs TWB style )
1989 K100rt #009637   "Black Betty"  (naked rt ala Nigel , now sporting an rs main fairing )
    

11Back to top Go down   GEAR INDICATOR - LCD Empty Re: GEAR INDICATOR - LCD Wed Oct 04, 2017 4:48 am

Rick G

Rick G
admin
admin
MartinW wrote:Rick I thought inmates would be better than Knutcases, or Fruit Loops. GEAR INDICATOR - LCD 44271
Regards an apologetic and contrite Martin.
Well just so long as the fruit loops are orgasmicly groan


__________________________________________________
"Man sacrifices his health in order to make money.
Then he sacrifices money to recuperate his health.
And then he is so anxious about the future that he does not enjoy the present; the result being that he does not live in the present or the future; he lives as if he is never going to die, and then dies having never really lived."   Dalai Lama


Bikes 1999 K1100 LT with a Big Block 1200
    

12Back to top Go down   GEAR INDICATOR - LCD Empty Re: GEAR INDICATOR - LCD Wed Oct 04, 2017 5:11 am

MartinW

MartinW
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So Fruit Loops it will be. GEAR INDICATOR - LCD 8157
Regards Martin.

    

13Back to top Go down   GEAR INDICATOR - LCD Empty Re: GEAR INDICATOR - LCD Wed Oct 04, 2017 5:17 am

92KK 84WW Olaf

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Anyway on this forum we are different.

We are all Knuts. Klients just don't sound the same even if it's more politiKally Korrect.

But we have a very open door too........anything K is welcome.


__________________________________________________
1992 K100LT 0193214 Bertha Blue 101,000 miles
1984 K100RT 0022575 Brutus Baja Red 578 bought 36,000 now 89,150 miles
1997 K1100LT 0188024 Wotan Mystic Red 689 58,645 now 106,950 miles Deceased.
1983 K100RS 0011157 Fricka 606 Alaska Blue 29,495 miles Damn K Pox Its a Bat outta Hell Now 58,200 miles. 
1996 K1100LT 0233004 Lohengrin Mystic Red 38,000 miles currently 48,061 miles.
1983 K100RS 0004449 Odette R100 colours 58,000 miles. Sprint fairing now 61,190 miles

Past:
1968 Yamaha 80 YG1
1971 Yamaha 125 YAS-1
1968 Honda 125 SS
1970 Honda CD 175
1973 Honda CB500-4
Honda CX 500
    

14Back to top Go down   GEAR INDICATOR - LCD Empty GEAR INDICATOR - LCD Wed Oct 04, 2017 10:24 am

WINGLESS

WINGLESS
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Hi everyone,
Further to the above, please be advised that the procedure was not my own. 2/3 weeks ago I found an article on this forum detailing the LCD - LED conversion ( I think it was through a link cited in another discussion. I printed off the details for future possible interest, but was mainly concerned at the time replacing like-for-like). This did not work out as noted earlier. I tried again to find the article, "BMW K100, 7 segment gear indicator replacement", but like charlie99 was unable to find it so I worked from the copy I had earlier printed.

So: to this unknown contributor ( UC ) my sincere thanks for your groundwork and design.

Two slight changes I made to UC's design:

1. I used the same digital 7 segment display ( Ebay article no 112039276570 ) that UC advised but I found I was happier with the lesser brightness of  1000 ohm resistors as opposed to the 390's he/she used. This was derived through trial and error using a handful of resistors on a single element of the indicator. No attempt was made at calculating values.

2. I used a cut segment of prototype board only as a drilling guide to ensure the indicator is centralised in the rev-counter window then discarded it. Thereafter I epoxied a 10 pin DIP/DIL socket ( cut from a 20 ) on the component side of the counter pc board and soldered all resistors to this, thus enabling the digital display to be plugged/ un-plugged if replacement was required.

I don't know how the quality would be, but if any interested parties are unable to find this article, I could try scanning my printout and posting it on this forum.

Anyone proposing this change - please use resistors rated 0.6W as larger rated ones at physically too big to fit in the space available.
Also: Great care required removing rev-counter needle. Do not pull or you will pull all of the guts out of the mechanism. I made a small plywood packer straddling the spindle on the back of the RC face and a similar tapered one to slide under the needle hub. re-assembly is just a push fit.

Finally cost: Indicator ex Ebay £1.99 + postage, 7 resistors £0.09 each, DIP/DIL £2.40 both ex Maplin Electronics local depot.
Total approx. £2.70 ( $3.60 USD ) excl postage.

Best wishes
Ian

    

15Back to top Go down   GEAR INDICATOR - LCD Empty Re: GEAR INDICATOR - LCD Wed Oct 04, 2017 10:50 am

Avenger GT

Avenger GT
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16Back to top Go down   GEAR INDICATOR - LCD Empty GEAR INDICATOR - LCD Wed Oct 04, 2017 10:59 am

WINGLESS

WINGLESS
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Hi Avenger,

That is the very article.

Many thanks indeed. Still don't know who to thank though for original.

Ian

    

17Back to top Go down   GEAR INDICATOR - LCD Empty Re: GEAR INDICATOR - LCD Wed Oct 04, 2017 11:05 am

Avenger GT

Avenger GT
Life time member
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A member called Johnser in Cornwall in U.K.

Link to original post.

https://www.k100-forum.com/t12145-gear-selection-indicator-replacement

    

18Back to top Go down   GEAR INDICATOR - LCD Empty Re: GEAR INDICATOR - LCD Wed Oct 04, 2017 11:26 am

charlie99

charlie99
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cheers guys ,,,thanks for adding to the thread

could well be something our slightly adventurous brothers may attempt

GEAR INDICATOR - LCD 112350


__________________________________________________
cheezy grin whilst riding, kinda bloke ....oh the joy !!!! ...... ( brick aviator )

'86 K100 RT..#0090401 ..."Gerty" ( Gertrude Von Clickandshift ) --------O%O
'86 k100 rs.. #######..  "Fred " (f(rame) red ) ( Fredrick leichtundschnell ) - -
bits and pieces from many kind friends across the k100 world ...with many thanks ..
1987 k100rs ########   "Red"  - (red sports rs TWB style )
1989 K100rt #009637   "Black Betty"  (naked rt ala Nigel , now sporting an rs main fairing )
    

19Back to top Go down   GEAR INDICATOR - LCD Empty Re: GEAR INDICATOR - LCD Wed Oct 04, 2017 3:25 pm

MartinW

MartinW
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Life time member
Thanks Wingless and Avenger I have saved it for the future. 
Regards Martin.

    

20Back to top Go down   GEAR INDICATOR - LCD Empty Re: GEAR INDICATOR - LCD Wed Oct 04, 2017 8:01 pm

robmack

robmack
Life time member
Life time member
Does anyone have a LCD display board from an instrument cluster that they can send / sell to me? I have an idea for a drop-in replacement for the LCD and need the board for mechanical dimensions and electrical testing.


__________________________________________________
Robert
1987 K75 @k75retro.blogspot.ca
http://k75retro.blogspot.ca/
    

21Back to top Go down   GEAR INDICATOR - LCD Empty Re: GEAR INDICATOR - LCD Wed Oct 04, 2017 9:06 pm

Rick G

Rick G
admin
admin
Give me a few days I'll see what I can find in the cave. I need to find what was growling behind a heap of wheels and tyres first Laughing


__________________________________________________
"Man sacrifices his health in order to make money.
Then he sacrifices money to recuperate his health.
And then he is so anxious about the future that he does not enjoy the present; the result being that he does not live in the present or the future; he lives as if he is never going to die, and then dies having never really lived."   Dalai Lama


Bikes 1999 K1100 LT with a Big Block 1200
    

22Back to top Go down   GEAR INDICATOR - LCD Empty Re: GEAR INDICATOR - LCD Sat Oct 07, 2017 7:02 am

Laitch

Laitch
Life time member
Life time member
WINGLESS wrote:
Bit the bullet at the weekend and managed yesterday to convert display from LCD to LED.
Well pleased with result.
To supplement information in links already provided in this thread, here is a video link embedded in this thread at Motobrick.com that also might be of use to those interested in this conversion.


__________________________________________________
1995 K75 90,000 miles
    

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