Products > Test Equipment
New EEVblog BM786 Multimeter
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joeqsmith:
The my 789 appears to have about the same contrast is the 786s.   Shown with the lab light, backlights on and outdoors.   Angle will make a big difference as well.  Sometimes when comparing so many meters, I have to tilt them just right to get a decent shot.   

https://youtu.be/pPCtnQa0Thc?t=979
Fungus:
I don't understand why all these fancy meters aren't be as contrasty as a freebie DT830B.  What gives? :-//

(eg. are the freebies overdriving something so that the display won't last very long?)

HKJ:

--- Quote from: Fungus on June 04, 2021, 12:56:10 pm ---I don't understand why all these fancy meters aren't be as contrasty as a freebie DT830B.  What gives? :-//

(eg. are the freebies overdriving something so that the display won't last very long?)

--- End quote ---

When you have many segments on the display the contrast will be lower, due to the way they are scanned.
ceut:
Hello,
So, I have sent back the BM789 and have the refund of it.

Also, I have found an youtube video from Dave which shows the solution to fix the LCD contrast on the BM235, @9min39s:


As the BM789 has exactly the same chipset, like I was thinking previously, the resistor for the contrast setting is not good.
Maybe someone would try to change the value and probably fix the issue ?
EEVblog:
Got a BM786 returned with a reported fluctating low value on ohms, never gets to zero, continuity buzzer going off on it's own etc. Touching range switch causes some change. Completely repeatable.
I test the meter and absolutely nothing wrong. Switch contamination that got wiped away?  :-//
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