365-Day Hassle Free Return Policy!  ·  AppliancePartsPros.com
Washer Parts  ·  Dryer Parts  ·  Refrigerator Parts  ·  Dishwasher Parts  ·  Range & Oven Parts  ·  All Appliance Parts 

Author Topic: Keypad Testing  (Read 441 times)

Offline ryan111

  • Technician
  • Member Since: Aug 2010
  • Posts: 198
    • Appliance-repair-it.com
Keypad Testing
« on: February 26, 2013, 03:22:16 PM »

Keypad testing to me is one of the most difficult/aggravating test procedures I come across. Typically I only have to worry about every now and then but lately I have had a run of having to test these things.

I have a very hard time (especially by myself) holding the leads of the meter on the ribbon while trying to press the button on the keypad I am testing. I have tried using clips but they are to fat (they touch the pin next to the one testing) and sometimes they donít want to stay on during the test.

One time I brought a (so-called) keypad tester, which I wasnít able to successfully test any keypads with it. It was a waste of money.

Has anyone found a good keypad tester or can someone give me tips on making this test easier.
http://www.appliance-repair-it.com/
Where everyone can repair it!

Offline dab147315

  • Technician
  • Member Since: Oct 2010
  • Posts: 2040
  • Country: us
Re: Keypad Testing
« Reply #1 on: February 26, 2013, 04:10:59 PM »
There was a tester that whirlpool had for sell on there service matters site and i bought one but never used it.I no its on my truck some were but it was for whirlpool dishwasher only.Maybe AJ can find it for you.It was a board the ribbon plug in and you used the  diagram to help you.Dont no if they still have it.

Online theoldstoveguy

  • Technician
  • Member Since: Jan 2008
  • Posts: 1410
  • Country: us
    • Buy me a beer through paypal
Re: Keypad Testing
« Reply #2 on: February 26, 2013, 04:56:47 PM »
Same here. I am looking at an old range ribbon connector on an old junk stove as it has the widest connector. Then making my own. Maybe I should check Radio Shack and see about a do it yourself board type thing.

Offline ryan111

  • Technician
  • Member Since: Aug 2010
  • Posts: 198
    • Appliance-repair-it.com
Re: Keypad Testing
« Reply #3 on: February 26, 2013, 05:39:59 PM »
Who was that guy from that board repair website or what was the website. Maybe he can help with this.
http://www.appliance-repair-it.com/
Where everyone can repair it!

Offline AJ

  • Technician
    Administrator
  • Member Since: Jun 2007
  • Posts: 9846
  • Country: us
    • ApplianceJunk.com - Appliance Repair
Re: Keypad Testing
« Reply #4 on: February 26, 2013, 05:42:24 PM »
Hope you find our site helpful.

Offline ryan111

  • Technician
  • Member Since: Aug 2010
  • Posts: 198
    • Appliance-repair-it.com
Re: Keypad Testing
« Reply #5 on: February 26, 2013, 05:44:12 PM »
If you had a plug you could connect the ribbon into that had prongs coming off of it (spread out wide) you could easily use clips.

The tester I got you plugged it into the ribbon and pressed any button and if there was a connection it would beep and a led would light up. However I tried it on several keypads that I knew were good and couldnít get it to work. Needless to say it was a POS! But what can I say I think I paid $10 for the thing.
http://www.appliance-repair-it.com/
Where everyone can repair it!

Offline ryan111

  • Technician
  • Member Since: Aug 2010
  • Posts: 198
    • Appliance-repair-it.com
Re: Keypad Testing
« Reply #6 on: February 26, 2013, 05:44:37 PM »
thanks AJ
http://www.appliance-repair-it.com/
Where everyone can repair it!

Offline AJ

  • Technician
    Administrator
  • Member Since: Jun 2007
  • Posts: 9846
  • Country: us
    • ApplianceJunk.com - Appliance Repair
Re: Keypad Testing
« Reply #7 on: February 26, 2013, 05:45:01 PM »
I sent Bruce a message about this topic.
Hope you find our site helpful.

Offline ryan111

  • Technician
  • Member Since: Aug 2010
  • Posts: 198
    • Appliance-repair-it.com
Re: Keypad Testing
« Reply #8 on: February 26, 2013, 05:49:28 PM »
Thanks I was about to do that.
http://www.appliance-repair-it.com/
Where everyone can repair it!

Offline fixyourboard

  • Technician
  • Member Since: Sep 2009
  • Posts: 89
    • Repair control boards for home appliances
Re: Keypad Testing
« Reply #9 on: February 27, 2013, 04:36:03 PM »
Hi Guys,
We do have a keypad tester that we built, but it hooks to a computer to make the tests.
I went looking for something but came up empty, so had to build our own.

If we were to design a nice compact low cost portable keypad tester ... how many could we sell and for how much?
It's definitely a feasible project for us ... but would need to invest some time.

I'm thinking it would take the form of a small plastic case, battery powered, with a ribbon cable to a keypad compatible connector. There would need to be at least 2 ribbon cables to accommodate the different pin pitches. I think an LED for each pin, which would light if continuity is detected below a "good" resistance.

Let me know what you guys think, if there is enough interest I'll look at building a prototype.
www.fixyourboard.com - We repair electronic control boards.

 

Testing Refrigerator and Freezer Compressors

Started by Icehouse

Replies: 0
Views: 41
Last post June 08, 2009, 01:28:15 PM
by Icehouse
Need help testing our mobile app...

Started by AJ

Replies: 9
Views: 98
Last post September 14, 2011, 04:01:25 PM
by AJ
MOVED: Testing washer timer

Started by AJ

Replies: 0
Views: 27
Last post April 19, 2012, 06:41:41 PM
by AJ
Testing my new iPhone

Started by AJ

Replies: 28
Views: 129
Last post November 18, 2012, 11:54:46 PM
by Nwtech
Safety testing.

Started by Specialist

Replies: 22
Views: 129
Last post March 07, 2013, 02:18:44 AM
by Specialist
Testing of Boards - display & control

Started by evergreen appliance

Replies: 7
Views: 171
Last post October 16, 2013, 07:14:10 PM
by nolazach