HOME  |  NEWS  |  BLOGS  |  MESSAGES  |  FEATURES  |  VIDEOS  |  WEBINARS  |  INDUSTRIES  |  FOCUS ON FUNDAMENTALS
  |  REGISTER  |  LOGIN  |  HELP
Comments
View Comments: Newest First|Oldest First|Threaded View
<<  <  Page 3/3
S.Wimmer
User Rank
Silver
Re: auto diagnostics
S.Wimmer   1/7/2013 9:25:21 AM
NO RATINGS
JimT,

Speaking for the people that two years from now that have to figure out why your product suddenly stopped working, you should never rely on soldermask for insulation (been there done that).  Or are you giving someone else an opportunity for a future 'Sherlock Ohms' submission.

GlennA
User Rank
Gold
shift interlock
GlennA   1/6/2013 10:12:10 PM
NO RATINGS
On a tangent;  I once was asked to help when a car would not shift out of Park when the brake pedal was pressed.  And also, the brake lights were not lighting when the brake pedal was pressed.  It turned out to be a loose wire at the switch.  The brake lights turned out to be a troubleshooting test.

JimT@Future-Product-Innovations
User Rank
Blogger
Re: auto diagnostics
JimT@Future-Product-Innovations   1/6/2013 5:25:08 PM
NO RATINGS
Isn't that always the case-? Diagnostics taking longer than the corrective action-?  Makes me think of a recent issue I had on the product I was designing.  I had hand-assembled the very first (10) working prototypes, but every time I tightened down the outer housing screws, the display blanked-out. I spent literally 2 solid weeks of assembly evaluations and diagnostic trouble shooting before I narrowed the cause to the lack of insulated solder-resist on the PCB top layer.  Tightening the housing screws simply squeezed the metal modem casing onto exposed circuitry which should have been insulated during the PCB fabrication process.  Corrective action was a 1c piece of Kapton tape under the module.  Two week investigation; 10 second fix. Of course that is a natural part of development and this type of issue must be completely resolved months before production. I hate to see silly issues like this affect the consumer end-user.

naperlou
User Rank
Blogger
auto diagnostics
naperlou   1/4/2013 9:22:35 AM
John, I will bet you that the time you spent diagnosing the problem was longer than the time you spent fixing it.  This is the problem with many automotive systems.  With the advent of very inexpensive microcontrollers, this should be the next wave of automotive improvements.

<<  <  Page 3/3


Partner Zone
Latest Analysis
Adam Berger hacked a computer keyboard into a mini key-tar to play with his band.
Altair has released an update of its HyperWorks computer-aided engineering simulation suite that includes new features focusing on four key areas of product design: performance optimization, lightweight design, lead-time reduction, and new technologies.
At IMTS last week, Stratasys introduced two new multi-materials PolyJet 3D printers, plus a new UV-resistant material for its FDM production 3D printers. They can be used in making jigs and fixtures, as well as prototypes and small runs of production parts.
In a line of ultra-futuristic projects, DARPA is developing a brain microchip that will help heal the bodies and minds of soldiers. A final product is far off, but preliminary chips are already being tested.
If you're planning to develop a product that uses a microcontroller, you'll want to take note of next week's Design News Continuing Education course, "MCU Software Development A Step-by-Step Guide."
More:Blogs|News
Design News Webinar Series
9/10/2014 11:00 a.m. California / 2:00 p.m. New York
7/23/2014 11:00 a.m. California / 2:00 p.m. New York
7/17/2014 11:00 a.m. California / 2:00 p.m. New York
6/25/2014 11:00 a.m. California / 2:00 p.m. New York
Quick Poll
The Continuing Education Center offers engineers an entirely new way to get the education they need to formulate next-generation solutions.
Sep 22 - 26, MCU Software Development A Step-by-Step Guide (Using a Real Eval Board)
SEMESTERS: 1  |  2  |  3  |  4  |  5  |  6


Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.
Next Class: September 30 - October 2
Sponsored by Altera
Learn More   |   Login   |   Archived Classes
Twitter Feed
Design News Twitter Feed
Like Us on Facebook

Sponsored Content

Technology Marketplace

Copyright © 2014 UBM Canon, A UBM company, All rights reserved. Privacy Policy | Terms of Service