Nikon D80 ERR +split gear pt 1
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- Опубликовано: 19 янв 2025
- A common repair for the Nikon D80 is for the ERR message on the top LCD and usually a whirring noise with a stuck mirror partially up. It's caused by a split gear on the mirror motor and is easily replaced. Part 1 shows the disassembly and replacement of the gear with one purchased at online auction sites. Part 2 shows the reassembly of the camera.
Thank you for the video! I managed to get this process to work, except I put in a whole new ACU instead of just a gear. Only thing I'd say to anyone trying this is to double check every electrical connection. When I reassembled mine the first time, it kept reading that the battery was dead, even though it was full. I disassembled it again to find the gray wire that is desoldered at 7:28 had come undone. Fixing that and reassembling fixed the battery issue, but certain buttons on the back panel did not work. This turned out to be the ribbon cable at 1:20 not being properly seated and locked. Both issues with my reassembly. Thank you again for the video!
Thank you for adding your comment. Attention to detail is important.
Thank you! Didn't have the split gear, but the problem with the spring loaded encoder wheel. Worked fine. And in comparison to other videos you managed not to remove the sensor, which would ruin the AF setting. This is the much better way (removing the mirror box and leaving the sensor in place). Thank you so much for your effort to record your repair and share it!
Thank you for commenting!
8:53 looks about time for a heart attack.
Thank you for the great teardown videos.
Thanks for your comment!
Thanks a lot for both videos, I could finally repair my D80!!!
Hello. I have Err and fully working mirror - it goes up and down always. But no aperture, focus, flash and no photos. What do you think it is this the same problem and solution?
It's possible but I've never seen that combination of problems. If the aperture mechanism magnet isn't holding, the aperture will always stop down to the smallest lens opening and so the exposures will be very underexposed and the autofocus won't work. There might be more going on than the sequence gear problem.
Where is the internal battery located? I gave the err with a flashing clock and even with a new battery the flashing clock wont go away. I assume i need to put in a new inteneal battery but i dont onow where its located on the camera.
The internal memory battery is hidden away on the "rewind" end of the camera behind the DC IN port - not easily accessed. The good news is that I haven't had to replace one in the 15 or so years the D80 has been out. More likely is that it needs to be refreshed by the larger, chargeable battery. Charge the main battery fully then put it into the camera and leave it a couple of days. If that doesn't work then you can start the process of digging the memory battery out.
@@ghccrtube5007 I tried this actually. I bought a new battery and installed it. I left it on for about a day but it still isn't charged. The clock and err message will stop blinking and stay solid until I try to take a photo. Then it starts to blink again
Excellent work! I started taking my camera apart. It was going well until I got to the auto focus/manual focus lever. I can't figure out how to get the button off, so the disassembly can't go any further. Any tips on the auto focus/manual focus button lever removal please?
Refer to 2:40 - use a sewing needle held by pliers to wedge behind the cover disk on the AF/Man lever, then unscrew the knob from the body
@@ghccrtube5007 Thank you. I didn't understand what I was trying to remove. Done now! The capacitor is discharged and the camera disassembled up to the desoldering stage.
Could you say what voltage you put into the shutter motor prior to reassembly please?
@@electronaut7429 No more than about 3 volts should activate it without wrecking other circuits.
@@ghccrtube5007 Thank you for that and for your video.
I could possibly do this and fix my D80, but im concerned with keeping track of what screw goes where? And tricks to that?
If you've got room put the screws on your workspace in the location and spacing that you removed them from. At 12 o'clock place the two screws removed from either side of the eyepiece on the back. To the right of them place the right side back cover screws. Below these lay out the bottom cover screws, etc. (be sure not to sneeze). I reinsert the tiny screws that hold flex circuits after the circuit has been lifted. I've seen some people draw an outline of the camera back, sides, top and bottom then punch the screws thru the paper at the proper locations but seems time consuming to me. Nikon is notorious for making a huge variety of screw diameters, lengths, and types. Canon not nearly so bad.
Thank you! This is very useful video. Great shooting angles and highlights, especially those parts to open flash and discharge capacity. I managed to tear my D80 apart and put them together with new split gear. Now the mirrow can turn. However get another error. Mirror now flip 3 times quickly when trying taking picture, but I can see shutter curtain remain closed all the time. Any hints? could it be the sequence switch?
Yes, likely the sequence switch, the contacts are easily bent when the gearbox is disassembled. Be sure they are all even and high enough to make contact with the circuit board, since it's hard to check electrically.
@@ghccrtube5007 Very appreciated for such quick reply! I will start another journey to my D80 this weekend
Hi! What size of screwdriver do you use?
It's 1/8" dia 2" long cross point I've have for years
My camera has the same issue. Where do you by the replacement for the split gear? Thank you
Ebay.com and do a search for "Nikon D80 gear"
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Much appreciated! Muy apreciada!
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