Weight Weenies
* FAQ    * Search    * Trending Topics
* Login   * Register
HOME Listings Blog NEW Galleries NEW FAQ Contact About
It is currently Thu May 05, 2016 9:05 pm
Recently the board software has been updated and there are some known bugs/failures:
- Avatars are currently not being displayed ✔ FIXED
- Tapatalk connection is currently broken ✔ FIXED

If you find more errors please post it here: http://weightweenies.starbike.com/forum/viewtopic.php?f=7&t=139062


All times are UTC+01:00





Post new topic  Reply to topic  [ 7 posts ] 
Author Message
 Post subject: 7970 Diagnostics
PostPosted: Sun Apr 21, 2013 2:01 am 
Offline

Joined: Thu Sep 29, 2011 1:19 am
Posts: 104
Can the old Dura Ace Di2 (7970) be upgraded and modified using the current PCE1 that I use on my Ultegra Di2?


Top
   
 Post subject: Re: 7970 Diagnostics
PostPosted: Sun Apr 21, 2013 3:26 am 
Offline

Joined: Wed Feb 09, 2005 4:51 am
Posts: 1829
No.


Top
   
 Post subject: Re: 7970 Diagnostics
PostPosted: Sun Apr 21, 2013 3:29 pm 
Offline

Joined: Thu Sep 29, 2011 1:19 am
Posts: 104
So what is needed for 7970? Can it change the button functions like the current tool?


Top
   
 Post subject: Re: 7970 Diagnostics
PostPosted: Sun Apr 21, 2013 4:23 pm 
Offline

Joined: Wed Jan 10, 2007 10:56 pm
Posts: 1118
Location: Canada
The 7970 system uses a separate diagnostic box called the SM-EC79. You can change switch functions in a limited way with it. It does not have a PC interface, you use blinking lights and switches to change button function. All you can change is which button moves up or down on each shifter. You can't switch front and rear shifters.

http://techdocs.shimano.com/media/techdocs/content/cycle/SI/DA_Di2/SMEC79/SI-7E20A-002-ENG_v1_m56577569830676584.pdf


Top
   
 Post subject: Re: 7970 Diagnostics
PostPosted: Sun Apr 21, 2013 6:22 pm 
Offline

Joined: Mon Jun 06, 2011 7:16 pm
Posts: 539
Location: Irvine, CA
Is there a firmware update for the original Di2 Dura Ace groupset. If so how do i download it? I am not looking to reconfigure the shifting or anything like that. I was told a firmware update makes it shift a little faster?? I did a search and could not find much.


Top
   
 Post subject: Re: 7970 Diagnostics
PostPosted: Sun Apr 21, 2013 9:17 pm 
Offline

Joined: Wed Jan 10, 2007 10:56 pm
Posts: 1118
Location: Canada
There is no capability of updating 7970 firmware. That is only available for 6770 and 9070 di2 versions. They use the newer E tube wiring and setup. If you're not happy with the shifting speed of your 7970 di2, then you may as well give up. I've got a bike with 7970 and one with the newer ultegra 6770 with the latest firmware, and apart from the multishift on the 6770, there is no difference in shifting speed that I can discern.


Top
   
 Post subject: Re: 7970 Diagnostics
PostPosted: Sun Apr 21, 2013 11:10 pm 
Offline

Joined: Mon Jun 06, 2011 7:16 pm
Posts: 539
Location: Irvine, CA
goodboyr wrote:
There is no capability of updating 7970 firmware. That is only available for 6770 and 9070 di2 versions. They use the newer E tube wiring and setup. If you're not happy with the shifting speed of your 7970 di2, then you may as well give up. I've got a bike with 7970 and one with the newer ultegra 6770 with the latest firmware, and apart from the multishift on the 6770, there is no difference in shifting speed that I can discern.


Thanks for the info. I am not unhappy with my current shifting. A tech in a local bike shop said there was a firmware update for my groupset. I did a Google search and could not turn up anything for the 7970 setup. You confirmed this.


Top
   
Display posts from previous:  Sort by  
Post new topic  Reply to topic  [ 7 posts ] 

   Similar Topics   Author   Replies   Views   Last post 
There are no new unread posts for this topic. Di2 7970 battery plug wiring

[ Go to page: 1 2 ]

in Road

drmutley

16

682

Wed Aug 19, 2015 3:29 pm

drmutley View the latest post


All times are UTC+01:00


Who is online

Users browsing this forum: Exabot [Bot], jeffy, liam7020, mac567, nooski, Ritxis, tnkn, Yahoo [Bot] and 37 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB® Forum Software © phpBB Limited