electro-music.com   Dedicated to experimental electro-acoustic
and electronic music
 
    Front Page  |  Articles  |  Radio
 |  Media  |  Forum  |  Wiki  |  Links  |  Store
Forum with support of Syndicator RSS
 FAQFAQ   CalendarCalendar   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   LinksLinks
 RegisterRegister   ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in  Chat RoomChat Room 
 Forum index » DIY Hardware and Software » Rob Hordijk DIY Designs
Benjolin problem
Post new topic   Reply to topic Moderators: Rob
Page 1 of 1 [3 Posts]
View unread posts
View new posts in the last week
Mark the topic unread :: View previous topic :: View next topic
Author Message
jooks



Joined: Mar 18, 2009
Posts: 15
Location: sweden

PostPosted: Sat May 31, 2014 1:43 pm    Post subject: Benjolin problem
Subject description: 79L09 overheats
Reply with quote  Mark this post and the followings unread

I got a pcb with Tekniks layout for the Benjolin and Im trying to make a modular module out of it. It kinda works but only for a minute and then the 79L09 gets to warm and shuts down. I have compared the schematics and layout and it looks ok but I dont quite understand the schematics fully. The layout has a dead end for the gnd coming from the 100n cap after 79L09. Is something missing here?

Any help is much appreciated!

All the best
Erik


rhbjln_5u_103.pdf
 Description:

Download
 Filename:  rhbjln_5u_103.pdf
 Filesize:  815.41 KB
 Downloaded:  35 Time(s)

Back to top
View user's profile Send private message
inlifeindeath



Joined: Apr 02, 2010
Posts: 315
Location: Albuquerque, NM

PostPosted: Mon Jun 02, 2014 11:59 am    Post subject: Reply with quote  Mark this post and the followings unread

there's a red line after the caps which indicates you need to install a jumper. you can just use a clipped component lead or a piece of wire.
_________________
http://www.youtube.com/user/borisandfef
Back to top
View user's profile Send private message Visit poster's website
jooks



Joined: Mar 18, 2009
Posts: 15
Location: sweden

PostPosted: Mon Jun 02, 2014 12:48 pm    Post subject: Reply with quote  Mark this post and the followings unread

inlifeindeath wrote:
there's a red line after the caps which indicates you need to install a jumper. you can just use a clipped component lead or a piece of wire.

Yes, but further down the line there is another jumper which is not connected. But I cant see why it should be connected either?
Back to top
View user's profile Send private message
Display posts from previous:   
Post new topic   Reply to topic Moderators: Rob
Page 1 of 1 [3 Posts]
View unread posts
View new posts in the last week
Mark the topic unread :: View previous topic :: View next topic
 Forum index » DIY Hardware and Software » Rob Hordijk DIY Designs
Jump to:  

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 vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum
e-m mkii

Please support our site. If you click through and buy from
our affiliate partners, we earn a small commission.


Forum with support of Syndicator RSS
Powered by phpBB © 2001, 2005 phpBB Group
Copyright © 2003 through 2009 by electro-music.com - Conditions Of Use