Hilti PD30 Laser Range meter Error 276
Good day folks.....wow, seems like forever since I posted anything here 
Still alive and well, thank you I guess you could say I've become more independent and able to work stuff out on my own. This one though goes way over my head and I doubt is fixable, but maybe some bright spark out there has an equally bright idea.
So: my Hilti PD30 laser meter quit on me just the other day. It was working fine, I set it down for a while and when I tried using it again it gave me an E276 and wouldn't do anything else. I tried taking out the batteries, all that standard stuff but nothing changed. Absolutely no information online on what the error code even means either...
True, I THINK it did suffer an impact from a falling spirit level at one point. As you can see, the LCD has a black spot on the right edge, so that may have ultimately knocked something else out of alignment. I inspected it under the magnifying glass as much as I could, but didn't spot anything.
Another thing I noticed is that, initially after the impact, the meter did display its "regular" screen upon power-up - the error didn't show up until I actually tried to fire the laser. The laser would just flash briefly and THEN the error showed up. After removing the batteries, now the error shows up immediately at power up. This led me to believe something died in the optics part (though not necessarily related to the shock): photo transistor or laser diode.
One thing I tried was powering the laser diode (which is the capsule sitting higher than the other two) directly with my power supply set to a low-ish voltage of 2.5v and around 300mA. It did come on, so I assume the diode is fine.
Another theory is that one of the photo-transistors "went out", the board reads the current through them at start up, gets nothing in return (or an unacceptable value) and thus throws the error. No idea what them photo transistors are though. All I see is that the diode has 3 leads, the transistors have 2 leads, presumably the light itself acts as the "base". This also doesn't explain why it initially gave the error when the diode fired while now it does it immediately...
Any two-cents would be appreciated
Still alive and well, thank you I guess you could say I've become more independent and able to work stuff out on my own. This one though goes way over my head and I doubt is fixable, but maybe some bright spark out there has an equally bright idea.So: my Hilti PD30 laser meter quit on me just the other day. It was working fine, I set it down for a while and when I tried using it again it gave me an E276 and wouldn't do anything else. I tried taking out the batteries, all that standard stuff but nothing changed. Absolutely no information online on what the error code even means either...
True, I THINK it did suffer an impact from a falling spirit level at one point. As you can see, the LCD has a black spot on the right edge, so that may have ultimately knocked something else out of alignment. I inspected it under the magnifying glass as much as I could, but didn't spot anything.
Another thing I noticed is that, initially after the impact, the meter did display its "regular" screen upon power-up - the error didn't show up until I actually tried to fire the laser. The laser would just flash briefly and THEN the error showed up. After removing the batteries, now the error shows up immediately at power up. This led me to believe something died in the optics part (though not necessarily related to the shock): photo transistor or laser diode.
One thing I tried was powering the laser diode (which is the capsule sitting higher than the other two) directly with my power supply set to a low-ish voltage of 2.5v and around 300mA. It did come on, so I assume the diode is fine.
Another theory is that one of the photo-transistors "went out", the board reads the current through them at start up, gets nothing in return (or an unacceptable value) and thus throws the error. No idea what them photo transistors are though. All I see is that the diode has 3 leads, the transistors have 2 leads, presumably the light itself acts as the "base". This also doesn't explain why it initially gave the error when the diode fired while now it does it immediately...
Any two-cents would be appreciated
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