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Forum: Pentax K-30 & K-50
01-28-2021, 07:29 AM
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Thank you all for your help I appreciate it, but i think it's time to close the project.
I checked the motherboard for any visible damage to the cables or anything else of interest. I found nothing there.
After assembling the camera and inserting the battery, it came back to life,
I took ~ 10 good clean photos and it locked up again.
It might be something really small, but I can't find it.
I saw on ebay whole shutter units, not that expensive, but the work is horrible, and I think there is no point in replacing parts, counting for good luck
well, I finish the project for now, I will focus on cameras that work
yet :lol:
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Forum: Pentax K-30 & K-50
01-27-2021, 02:07 PM
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Thank you for suggestions,
I think that hope dies last :lol:
It's sure there's more to do besides this solenoid. The one from the MZ50 is inserted temporary. And you can see that something is happening.
I was sitting on the forum now, looking for "stuck shutter/mirror" topics but I didn't find anything specific. Usually the topic ends with conclusion "send it to pentax" or "throw it away"
In the meantime, I was digging the shutter and mirror with a toothpick
After a while I've coneccted the battery and turn on the camara and I jumped up as the shutter and mirror fired :lol:
Camera starts to shot pictures, LV is working, well, in general all seemed to work.
But with mirror flopping. bether this than nothing :)
After some testing shutter is stuck again, but the mirror still works.
One thing is for sure, this camera isn't completely dead yet
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edit,
I was trying to attach a video, but it is in mp4 and the forum will not accept it
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Forum: Pentax K-30 & K-50
01-26-2021, 11:39 AM
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hmm, I bought it with a kit lens and other stuff, for the price lower than I could buy this lens alone, so I think it was a bargain.
There is some progress in the project.
I just opened the case and took a look around, I don't see any broken cables, insede looks clean and OK,
I've cleand and reasembled the ribbon cable that goes to the selector dial, and it start to work as it should. along with the aperture and time dial. seams that issue is fixed
Lens screw-drive-mechanism moves up and down as it should after reassembling the focus switch,
Green solenoid was stuck, once unlocked, the wheels start move and the aperture lever were unlocked.
BUT, the mirror is still up so that the shutter does not fire when you try to take a picture (tests done afrer powering the camera)
I didn't try to force it to go down. I have no experience with this type of mechanisms. For now I have no idea how to fix it and I think if the shutter box is broken there will be no sense to replace it.
The other thing, when the kit lens is conected, I can change F with the dial (M). The numbers on the lcd are changing, but I can't see the reaction of the lens ( aperture is not changing).
Schould it change before taking the picture ( LV is off, if it is on lcd is black, becouse of the mirror up)
Additionally there is a terrible mess with the screws, they were put in random order, some loose, some super tight.
If any body has a list or a picture with propper placement I will be gratefull for sending the photo :lol:
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Forum: Pentax K-30 & K-50
01-26-2021, 06:47 AM
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Hi,
I recently bought the K30 body, it was supposed to have the "dark photos syndrome". I had read about it before on the forum and saw some tutorials on YT.
And I found it interesting. So I decided to have some fun and try to fix it. Reality turned out to be a little less bright :lol:.
When the body arrived, some more problems showed up.
Thanks to this, the project "for fun" turned out to be even more interesting.
I did some testing and what do I know so far:
1. the previous owner tried to repair the solenoid by himself with the "grinding method", and failed.
2. black pictures instead of dark
3. mirror blocked on top
4. shutter does not fire
5. the camera starts up, the buttons work, the screen looks good
6. the mode selector wheel operates randomly (dial on the top) / after cleaning and reinstalling the ribbon cable it started working properly
7. the memory backup battery looks almost dead, the camera quickly forgets the settings (time), after removing the main battery
8. firmware v1.10 first version, the camera identifies itself as K50 / downgrade to oryginal v1.06 + debugging, no improvement
9. the adjustment wheels work strange, not always (I need to do more tests to figure it out) / fixed after unlocking the solenoid and setting the focus switch
10. sometimes the camera won't turn off and you need to remove the battery.
11. aftermarket battery / I don't see any impact on the camera's work
12. focus mode selector is not assembled properly (wrongly positioned) / works fine after reinstallation
13. mess with screws / solved thanks to pictures shared by photogem in this topic -> Length of screws in K30, K50 and K500 - PentaxForums.com
and that's all I have found for now, if there is more, I will complete the list
I didn't open camera yet.
I have bought a donor for solenoid (*istD) and I am gathering the information about possible solutions to this issues.
Except the testing, I have flashed the orginal firmware from pentax v1.06, and I did debugging. No changes by now.
I've tryed adapter 4xAA with fully charged Varta (Ready to go 2600mah), but K30 the camera says the voltage is too low (they are not brand new). I've insert oryginal battery from my other pentax, but it didn't change much ( as far I can see)
I've managed to shoot some pictures befere mirror and shutter got stuck, they where completly black, shutter counter is around 60k.
Well, yes, the list is quite long, probably some will say "recycle it" and probably it will be the best solution in this case.
But I like to fix things, and I want to give this camara a chance.
I have been reading in recent days about the problems with the K30. And I wonder where to start.
I guess I should have replaced the solenoid first and set the focus selector
I think I can find more interesting things inside :lol:
Please write if you have any tips on this case.
But please, no tips like "throw it away", i mean for now, before I even try, maybe later :lol:
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edit:
I will update progress of the project, in other color |
