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DT-9205B+ multimeter issues; TFP401 non-touch issues.
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Please be positive and constructive with your questions and comments.

DT-9205B+ multimeter issues; TFP401 non-touch issues.

by AdaSesame on Sun Oct 09, 2016 4:26 pm

My Package arrived in Friday, Oct 7, including Ladyada's Tool kit (https://www.adafruit.com/products/136), which includes the DT-9205B+ multimeter.

But I quickly running into issues.

First, it indicates me that battery is almost dead since the first time I powered it on.
屏幕快照 2016-10-09 下午3.04.25.png
Multimeter
屏幕快照 2016-10-09 下午3.04.25.png (365.85 KiB) Viewed 782 times

屏幕快照 2016-10-09 下午3.07.30.png
Manual
屏幕快照 2016-10-09 下午3.07.30.png (411.71 KiB) Viewed 782 times

I did a few test later on, including turn the knob to the beeping test. I use the two test leads in box, whether using it on the Perma-Proto Board, or simply touch the two leads together, it could work only sometimes, but sually it will not have any beep sound.
It constantly shuts down even during the test.

I do opened it up one time, to see what's going on inside, but I put it back together and did no change.

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Also, about the TFP-401 board (https://www.adafruit.com/products/2218), when I hooked it to the RPi3 (Raspbian, 16G MicroSD), and the 5" 40-pin non-touch display (https://www.adafruit.com/products/1680), it seems broken, possibly something wrong with the signal?
-I doubt there's nothing wrong with the cable that I'm using, since I did swap a quiet a few of them, both decoder and the RPi3.
-The Raspbian seems working perfectly. I could barely see the self test on the screen; the display do have response when I moved the mouse.
-I don't think I damaged the 40-pin cable on the display.
-Could be that I missing some important steps?
屏幕快照 2016-10-09 下午3.24.29.png
TFP-401
屏幕快照 2016-10-09 下午3.24.29.png (517.59 KiB) Viewed 782 times

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If there's any information that I missed, I will post them as soon as I can.

AdaSesame
 
Posts: 3
Joined: Thu Oct 06, 2016 1:09 am

Re: DT-9205B+ multimeter issues; TFP401 non-touch issues.

by franklin97355 on Sun Oct 09, 2016 11:38 pm

Have you replaced the battery in the multimeter yet? Please do and test again.

franklin97355
 
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Re: DT-9205B+ multimeter issues; TFP401 non-touch issues.

by AdaSesame on Mon Oct 10, 2016 6:18 pm

franklin97355 wrote:Have you replaced the battery in the multimeter yet? Please do and test again.


I will be changing the battery tomorrow.

Also, how to "zeroing" this multimeter? I didn't see it on the manual.
And what about the screen & the decoder?

AdaSesame
 
Posts: 3
Joined: Thu Oct 06, 2016 1:09 am

Re: DT-9205B+ multimeter issues; TFP401 non-touch issues.

by AdaSesame on Tue Oct 11, 2016 8:12 pm

franklin97355 wrote:Have you replaced the battery in the multimeter yet? Please do and test again.


I changed the battery today, and it works fine.

AdaSesame
 
Posts: 3
Joined: Thu Oct 06, 2016 1:09 am

Please be positive and constructive with your questions and comments.