Thanks Michigo, My beloved K-50 camera is working again, I bought the same donor camera, Pentax MZ-50 , as you from eBay and went through your tutorial. The trickiest part for me was the soldering, I've never soldered before, so I borrowed one. A good tip of yours, the testing of the new installed part and when the aperture worked it finally put a smile on my face and the confidence to put it all back together. Many Thanks again Brian

Thank you! I've just fixed my k-50 using your video and some Pentax forum posts. I really struggled with the small screw to get the old solenoid out as I couldn't get the angle right on my screwdriver. When putting in the new solenoid I managed to strip the screw head... I ended up having the screw half in and using super glue! My camera works again now :)

Thanks for the video! With this video and a tutorial in a forum, I could exchange the dead Solenoid with a white one from japan. :) Now it works again!

The MZ-solenoids are slightly different. They are SLR 6V types while the DSLR solenoids are for 7,2V. Some MZ solenoids have a different impedance and some even have opposite polarisation.

@michigo1726

3 жыл бұрын

Very important information! Thanks for your advice!

@soi-luna3087

3 жыл бұрын

@@michigo1726 I just recently got a MZ-Solenoid from a German ebayer (Kilo). It was offered to be the right one but had opposite polarisation. Having your Pentax disassembled and then finding out the solenoid won't work is pretty tough. So I had to get one out of my K-x which still worked but I hardly used it. My K-S2 works like charm now with the proper solenoid. I thought I try filing-sanding the green one. Inserted it into my K-x but now my K-x overexposes all the time.

Here's another victim of the green solenoid (K-s2). Thx so much für showing how to change this little devil. I will try it but I have to find out first and wait for the delivery of the new solenoid...

@lorenzononaizzi3222

3 жыл бұрын

Hello, I found a white one on a DVD/CD unit from an old laptop... you have to dismantle it (it lays near the opening button)... but I'm NOT sure if it works the same way (maybe it needs different voltage). For sure it looks exactly the same as the one that is mounted in the camera...

@SchremserPTV

3 жыл бұрын

Just for completing my first posting: Everything works fine after replacing the solenoid. Thx again for jour Video

My Pentax Ks2 fix was a little less complicated. I simply use a Takumar 28mm lens with a manual aperture-focus as my fun hobby camera. A little more of a challenge and much more fun and usually I shoot in B&W, for times I must have Auto focus I use another camera that has great video also. But for Fun slower relaxing shoots its my Pentax all the way. ( I later fixed by filing the 2 legs of the horse shoe piece in the solenoid and it did work so far so good, however when removing the covers I noticed a paper thin black metal washer the same size as the wi-fi button that fell out. it would remind you of an o ring except metal, do you know where it belongs?

@GST90

Жыл бұрын

NIce! I did something similar with my K-70, but with an FA lens. Gave me an aperture ring and allowed me to autofocus.

@bobjohnson9597

Жыл бұрын

@@GST90 Well I just seemed to have fixed mine today. while in AV mode I simply held down the shutter button while tilting and smacking the bottom of the camera against my palm about 5 times while keeping the aperature setting between f 5.6 and f 11. You can see the moment that the fix happens and it was during a tilted frame so my best guess is there is something that gets stuck due to sitting unused for long periods of time. mine only had 955 shots when I found out the problem on line. Im still going to primarily use this camera with manual lenses in fact Im on line right now shopping. do you have any suggestions for a descent manual lens?

he's BACK!!!!!!!!!! also can you make a new hackintosh video?

@michigo1726

3 жыл бұрын

Hey! Nice to see someone waiting for my Hackintosh tuts :D What version of Hackintosh do you like to see as next? BR

@Hacker-cw9lc

3 жыл бұрын

@@michigo1726 open core! :]

@michigo1726

3 жыл бұрын

@@Hacker-cw9lc OK :)

Wish I could do this too....

Hi all. Had this issue on my K50 after not using it for 6 months. Nervous about about openiong it up and managed to find a trick that solved the problem. Put it in burst mode and fire off a load of shots. Delete them and repeat a few times. Problem solved.

@StrikeFromTheSkies

3 жыл бұрын

This is a temporary solution, unfortunately

@TheOdek1974

3 жыл бұрын

I tried it and it works

Many thanks for this tutorial... but... 6:45 Purple right side and Pink left side... this is useless until you know which is the front or the back side of the solenoid...is there any way to recognize it? Thank you...

@michigo1726

3 жыл бұрын

Thank you for your feedback! I am always looking how the wires was before and soldering the same way the new Solenoid. I hope it helps you to get this done right.

@lorenzononaizzi3222

3 жыл бұрын

@@michigo1726 You are doing it right, no doubt... I don't need to replace it at the moment (finger crossed) but I have a K10D with less than 10K actuations that could develop the "underexposure" issue... I already have a solenoid but I can't figure what is the "front side" or the "back side"... Hope I can understand it when I'll see the original one that is in the camera... Thank you...

@lorenzononaizzi3222

3 жыл бұрын

Ok... I've seen another video (from another channel) and now I understand... the original one has the pins on the front side... mine has both on the sides! That's why I was guessing about front and back...

@michigo1726

3 жыл бұрын

@@lorenzononaizzi3222 this is weird, the pins should be on the front and on both sides... you habe to soldering that to on the the front.

MZ solenoid into K30 didn't work: it would not sit in position properly. Solenoid from dead istDS works a treat.

Why did you demolish the MZ-50 like this, Just to get the Solenoid? Just needs around 20 screws on all sides to open the side , where the Solenoid is, and you can solder it out. Also make sure that the MZ-series white Solenoids have different Resistance to the digital ones.

@PaulAmsbary

3 жыл бұрын

Do you need to do anything different to prepare the MZ-50 solenoid to work in a K-50 due to the different resistance?

@jiiip8540

3 жыл бұрын

You can just buy one for 5 bucks on Ali....

@soi-luna3087

3 жыл бұрын

@@jiiip8540 bad idea, those are cheap lenovo solenoids and miss the side pins.

@michigo1726

3 жыл бұрын

It was my first disassemble))

OMG, why have you cut the strap on K-30?..

@michigo1726

2 жыл бұрын

Because there are two screws under the strap holders

@zedalert

2 жыл бұрын

@@michigo1726 но его же можно было просто вынуть, как и на правой стороне) Но за подсказку в доноре спасибо, уже надоел это соленоид. Странно конечно, что пентакс эту проблему уже 10 лет как повторяет.

Shame! After twenty years, Pentax has not yet learned how to properly build a solenoid dedicated to photographic mechanics.V

@davidstorm4015

2 жыл бұрын

Pentax don't build the solenoids, they buy them in bulk. The problem ones are made in China, the good ones are Japanese

Alright, here's the trick: activate the shutter 500 times, remove the body plates, scuff up the solenoid, and lastly, throw it in the trash and buy a Nikon or a Canon.

@johnnyc.5979

Жыл бұрын

You are so right. Where's the recall from Pentax (Ricoh)? I bought a K-S2 body for $260 online, so clean and new, and shot about 10 images. Shooting pictures now only results in black images. And now I have to spend $45 for a Japanese solenoid? And take it apart? I don't think so. It should still work with manual lenses, will try that when I get home from work. And will never buy Pentax again. Or Canon. I bought one of their Pixma bulk ink jet printers (with a promise of not having to buy ink for a year), it stopped working after 2 months (I can't find the receipt), and no recalls either. All these Japanese camera companies are sucking now because they have all 90% of their garbage made in China. Makes me angry as I'm sure so many others are.