The Leica S 100f 2 lens was useless for half a year and broke by itself

Leica S lenses can't autofocus, mostly because the lens motor gears are worn, because the Leica S lens autofocus motor process factors are plastic gears, and your lens does not move for a long time, especially in cold and low temperatures, the lubricating oil is dry. Yesterday it was used normally, and today it squeaked when it was turned on, up to thirty or forty seconds, this kind of imagination is basically the damage to the plastic gears, the trouble of returning the parallel goods lens to the factory, and the time is still long, and now this phenomenon can be repaired in Beijing, 1:1 metal gear replacement!

If you need to introduce, you can Wei me leica cnshop Several friends around me are replaced here, and it's no problem for a year or two!

It's time to change the gears, and the lubricating oil is no longer working. Gear change 800-1500 complete set 3500-5000The autofocus system is broken, and the autofocus can be changed by changing this wheel.

At this time, you can switch hands. There's a remote sensor on the right side of the eyepiece, and when you hold the remote sensor, it becomes a manual focus. Anyway, medium format machines use shelves.

Zhongbo Leica shop.

I also contacted Leica CNSHOP after seeing this post, they are very professional, and you can find the authorization information on the official website. Put it there for repair and get the lens in 5 days! I've been using it for over a year now and there's no problem at all!

Listening to their introduction, the German plastic process is really not good, and they changed to 1:1 Japanese-made gears. Very reliable!

Digital is a communication product (communication), computer products (computer), consumer electronics (consumer) three types of products, and intelligent hardware through the combination of software and hardware, the traditional equipment is transformed, and then it has intelligent functions (via encyclopedia) intelligent dry burning hardware encyclopedia. That is to say, intelligent hardware can involve 3C digital, but 3C digital is not necessarily intelligent hardware.

2.For example, the water cup, is it a 3C number? Obviously, it's not false, but it can be smart hardware, and the microphone cup is a good example. For example, glasses, are they 3C digital? Before Google Glass came along, it was obviously impossible.

I have also had such problems when I was doing my graduation project in the past, and there are 31 main reasonsThe output voltage of the single-chip microcomputer is not large enough, and the current is not large enough. The digital tube needs 2v 10mA.

2.The circuit is soldered.

3.Workaround:

1.The digital tube is divided into co-yin and co-yang, and the co-yang may be better. Check the hardware circuit first, if the program is fine, most of the problems appear on the circuit board, judge whether the wiring is wrong, whether it is soldered and other details.

2.To judge whether the digital tube is broken, use a multimeter to judge according to the data.

3.The current and voltage are not large enough: the resistance connected in series after the IO port in the circuit is changed to a suitable one, and the hardware circuit has been done, take a small resistor and see if the digital tube will light up at both ends of the original resistor; Plus transistor drive.

None of your smallest systems is working, indicating that there is a problem with your minimal system circuitry. Check the crystal oscillator circuit, reset circuit, and 31 pins (EA VPP) of the single-chip microcomputer are connected to the power ==

1.First, determine whether there is a problem with the hardware circuit of the LED (such as whether there is a problem with the circuit connection and whether the driving current is enough).

2.Determine if the microcontroller is working.

3.Determine whether the single-chip microcomputer has the driving signal of the LED.

Write directly to the port Can the digital tube be lit? (Note out other programs).

Is the common end transistor of the digital tube connected incorrectly?

It should be: communication engineering, electronic information science and technology, computer hardware, etc.

Computer Applications, Software Design, Animation Production.