Piece o' cake if you're careful and patient. Getting it back together correctly may be a different story. LOL
(Thanks to Revo for providing some tips and instructions!)
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Picked it up super cheap along with an IP5M-T1179 (that is now a Dahua). It was used outdoors in a sheltered area and covered with goo-like sap or just suffered from plastic degeneration over time from heat or both..., or who knows what else. Absolutely nasty whatever it is.
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Pure alcohol is the only thing that seems to be effective without risking lasting damage to the plastic as would lacquer thinner or brake cleaner. I think it will clean up nicely with a little work.
Tried IPA on one of mine made it worse lol Normally alcohol is bad on most plastics. Let me know what you end up with, have a couple that I will either convert to white or keep them where they are not seen lol. Most of the bulk buys for parts seem to be black.
A lot better and probably good enuff for the boss to allow it in the family room now.
Needs to come back apart, though. Pretty sure one end of the ribbon cable isn't set completely. No actual image and stream settings are weird for both main and sub streams. No smoke or sparks so I'm pretty sure neither is reversed. The WebUI is accessible. Video is just garbage.
About the Cable yeah needs to be put in good, If it was done backwards you would know.. It would let the magic smoke out One I put back together I had to set the cable again.. One reason I always just put the PCB screw in and place bottom but not add screws until I test it to confirm the thing is set.. Heck one of my 1600 cameras from 8 years ago I bought for 160 for parts and repairs and after getting it doing a fast once over I thought I would put it all back together seeing I didn't see anything wrong and all parts tested as good. After adding the cameras ribbon cable back the camera came to life.. Had never been used so got a crazy cool deal..
My 1051 started to have Audio issues, Took apart looked over board nothing was wrong changed out with Mic from 841 and Audio was back to working again..
Did you happen to notice the Clock Battery? it is on the inside of the PCB where the ribbon cable is.. Marked BT1.. If the clock is ever off after reboot and don't have the system setup NTP or NVR setup to set the time it will be off until set.. Still can't sorce the battery lol.. So on the ones I need I just put in a small pack battery in its place..
Oh yeah something I forgot about this as well. When you are taking it apart, it is best to try and keep the camera ribbon in place that way when you put back together you don't have to worry about what one is out. If it is in the head you will have to go back to the pain of taking it all apart again.. I learned this the hard way on my 10th or 11th repair of the 841's Had to take that one all the way apart to set the camera one.. White isn't as forgiving when taking them apart either. Plastic is harder and not as easy to unclip where the clips are.. Oh yeah 1 more thing I forgot, Looking at this one that is black, It has never been installed. Was damaged NEW plastic is bad on inside. But if you look at the picture you can see the Black cameras have a outside that is like soft to the feel. Scrap off with just my finger nail you can see the shinny plastic under it. I guess if someone was to take all the plush off down to the smooth plastic then no goo. It really is just the Camera that was all sticky and not pitch. All the black ones will do that over time.
Interesting.. I just revisited my nasty Black camera that I tested on the base with what I thought was IPA but must have been some of the Diluted solution that I use for a different flux clean up lol. Because I just tested pure IPA from a new bottle and that top layer does come off down to a gloss plastic like the White.. Not really sure why they had that put on to start with.. But nice to know that it will come off..
Thank you @Pogo if wasn't for you I would have just kept this camera on my basement stairs away from sight of others but now my ugly duckling don't have to hide anymore lol Yes this camera is VERY OLD.. If you look at the date stamp of the Stepper motor you can see that was built in 09-09-2015, I have a few older 841s then this one.. They are nice cameras even if all the cameras I own have dead clock batteries besides the few that I added in a battery pack in the place because they are behind a firewall without internet access so no way to update time in the current location. The new camera I got for the new Release of the 2019 FW also had a dead battery out of the box direct from Amcrest.
The ribbon on the board was slightly skewed and not all the way seated so I corrected that. Unfortunately it still exhibits the weird behavior so I'm back to total disassembly for investigation of what else I may have screwed up..., starting with the other end of the ribbon connection.
I may have also mounted the turret incorrectly as there seemed to be some type of motion restriction with pan and tilt before the camera just shut off like a connector popped loose. (Hopefully that's all it is!)
I'm not liking the possibility of the other ribbon connector being installed backwards so am hoping I may have just not seated the retainer securely enough. I took pics of the orientation, but still may have screwed it up.
Question: What is the default rotation routine before it stops at 'home' when it boots up? This one goes to the left (clockwise when sitting on the base) until hitting a stop in the turret base (seemingly prematurely) pointing directly backwards and then returns to a normal forward looking position. Something doesn't seem right there.
I'd hate to have toasted this thing after being so meticulous and putting so much effort into it!
Back in business. I'm not sure what corrected the image problem but assume it was by reseating and securing the ribbon connector in the camera head.
While trying figure out the rotational restriction and tilt snag, I realized the turret assembly was actually backward to the range of rotational motion since it was stopping just left or right of directly forward which logically seemed like it should be directly opposite at the rear.
Figuring out how I managed to do that took some head scratching, but it ended up with the camera head being situated both backward and upside down relative to how everything seemed to be designed to work. I also discovered the rotation motor gear was not properly engaging the turret gear and was lucky there wasn't any significant damage there.
The only issue I'm unable to immediately resolve is what appears to be some type of residue on (or in) the lens that affects the image to a noticable degree. Not horrible, but noticeable compared to any of my other 1080 cameras..., especially since the 841 has the Exmor sensor and 4.mm lens. Since everything else turned out to be ok I may spring for a replacement lens just because.
First not had the issue with being in wrong.. I guess I should have mentioned the issue with the pan gear. Not easy to tell but when you put the gear back in, need to keep an eye on the gear placement. The motor don't shift enough to keep it where it needs to be and if it is not held with good preasure while installing the screws the motor can be secured in wrong. While I have not done it, I have looked at the ability and how it might not be secured right and know that I take extra care there to make sure the scews are returned with the gear in good placement..
Next, When you go to remove the top of the base it is best to position the camera with the lens facing the front of the camera. This way when you add everything back and install camera top back to base you know that it is going in the right direction. Plus that naturally the way the camera should be placed to remove the screws securing the 2 parts..
About the Wires? Not sure what or how that was wrong.. I mean I take my wires out of the base and out of the side, as you can see in my picture above. So when i put my ribbon cable and wires back into the base, and connect the camera ball back to the holders I move the camera ball like it would move in the camera while in action to check for pulling or if there is anything wrong with the range of movement as if it was installed and being controled by Software.. Once I know that it is all safe and ready to install last parts I put in the screws and again do a range of motion test to confirm there is no extra strange things going on before I install cables and ribbons.. Then as a way to confirm I add just the scew holding the PCB in and I place the camera on the bottom to keep it from touching anything while I do a connection test. Log into the WebUI, I do left right up and down, Test for mic and speaker and confirm that the Wifi is able to get access seeing I do all testing in ethernet mode want to make sure it all functions as expected before I put the 4 screws in and button it up..
Now the last issue, The lens? Well this sounds like someone that owned the camera before you might have damaged the camera by cleaning it. The lens is a light weight plastic lens type. You will want to get a replacement lens.. Couple of things. First will need to make sure that it is the right mount. I can't remember but it is either an 8m or 12m lens type and I think they are setup for 4mm. Or if you would rather not source one I have a new one that I would be willing to remove from one of my first Gen POE 841E cameras that I use for parts. I would remove the lens via the IRC this way just unscrew the IRC from the PCB and install new one the lens would be already set. Camera was never used so lens is clean. Would just need to DM me your address again as I don't keep that info..
I would be willling to do a Pre Run from 2 cameras to confirm that my 841E would fit a normal 841 before sending it.. Again it would be taking the camera apart, removing the camera from the front, then taking the IRC screws out if I remember right there are 2, Then unplug the IRC wire from camera PCB add in new one and wouldn't have to worry about focus of the lens seeing adding in a new scew in lens part you would need to adjust the lens in or out after fitting it to get it in focus. Not everyone has camera base for powering on camera without it in place of the camera so you could make that adjustment. That is why it would be easier to have the wrhole IRC + lens as 1 part seeing the focus is already set from factory.
Now if you would like a different MM lens then the one that came stock then it would require sourcing the right make of lens either m8 or M12 again not sure and installing a 6mm or something to narrow the FOV could make this camera different and able to see at greater distance. Just keep in mind that don't want to get all to crazy seeing the IR if going to work with IR at night wouldn't go past the normal set value without IR blasters being used. I think the 841 only has a 30 to 40 foot range IR.
One I put back together I had to set the cable again.. One reason I always just put the PCB screw in and place bottom but not add screws until I test it to confirm the thing is set.. Heck one of my 1600 cameras from 8 years ago I bought for 160 for parts and repairs and after getting it doing a fast once over I thought I would put it all back together seeing I didn't see anything wrong and all parts tested as good. After adding the cameras ribbon cable back the camera came to life.. Had never been used so got a crazy cool deal..