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Leopold FC980M mechanical keyboard Youlian wireless dual-mode transformation video sharing
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https://www.bilibili.com/video/bv1VT4y177Kg
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“List of accessories included in the retrofit kit”
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"Ulion Main PCB*1"
\"Power Supply System PCB*1"
\"Rechargeable Lithium Battery*1"
\ 「Master Connection Cable*1」
\ "Main control connection power cord*1"
\ "Key wire separation module connection harness *1"
\ 「Kaihua plug-in shaft seat（Good soldering）*98"
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“Detailed explanation of remodeling list accessories”
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"Ulion main PCB: fully adapted to the original shell and positioning board of the Leopold FC980M mechanical keyboard without any changes."
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"Power supply PCB: integrated lithium battery charging & keyboard power supply system, designed with battery indicator switch, power switch, and charging switch"
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"Rechargeable lithium battery: 1300mAh & 3000mAh two capacity options at the same price"
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"Note*3000mAh battery needs to cut off a transverse rib on the bottom case"
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"Plug-in shaft holder: Use Kaihua plug-in shaft holder to be soldered on the main PCB of Ulink by default, ready to use, no need to change"
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\- The quality guarantee period of all customized transformation vendors in this store is within one year after signing for
\- The main control and receiver are not included in the retrofit kit, which needs to be purchased separately
\- After the transformation, you must use the data cable to plug into the computer USB port to charge. Do not use the mobile phone charger to charge the keyboard.
\- After the transformation, the keyboard only supports dual-mode: Youlian 2.4G / Bluetooth 3.0
\- After the transformation, the original 3 function key indicators in the upper right corner were changed to device connection indicators
\- After the transformation, the wired mode is no longer supported. The data cable is only for charging function. It does not support full-key custom programming at the moment
\- The keyboard will enter the automatic sleep mode after a few seconds of not using it. Press any key to wake it up
\- The 1300mAh battery has an average daily use time of 4 hours, and the battery life is about half a year; the 3000mAh battery has an average daily use time of 4 hours, and the battery life is about one year.（Not a standard, for reference only）
\- If you choose to use the plug-in shaft seat, you must install a new shaft. The old shaft will be damaged by tinting the plug-in shaft seat; if you want to use the removed old shaft, you can choose to weld the shaft body.（PCB supports both welding shaft body and plug-in shaft seat）
\- If you use the shaft hot-swappable function, it is recommended to use a keycap with a height of OE and above, because the direction of the hot-swappable shaft is an upside-down shaft. The use of a PD height keycap will conflict with the shaft. The shaft will top the keycap
\- Function key prompts such as uppercase and lowercase. You can download the software "Logitech Options", which will prompt the switching status of the function keys in real time. Link: https://www.logitech.com.cn/zh-cn/product/options
\- Note: The service of tuning satellite axis is not included in the transformation fee
\- Because the customized modification kit is a customized product, a refund can be made before delivery Refunds and returns will not be supported after delivery
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"Transformation sharing "
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The Leopold FC980M mechanical keyboard relies on the advantages of a short body, complete functions, and standard PBT keycaps. It was once known as a "graduation keyboard" by players, and it was also known as a "textbook-level" mechanical keyboard.
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At this stage, the most famous wireless connection method is Logitech’s “Unifying（Union）” and “Lightspeed”, both are particularly outstanding in terms of stability, energy consumption, multi-system support, etc. They are far, far away from other 2.4G wireless connections. “Unifying（Union）The performance comparison between ” and “Lightspeed” is naturally "Lightspeed" won, but Youlian is not bad for daily use, and it can handle game competitions freely. Considering that the price of the cheap "Lightspeed" keyboard at this stage is also 4-5 times the price of the keyboard, it is still Youlian. It is more suitable for adaptation and transformation.
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After summarizing the problems encountered in the first two batches of “FC980M Youlian PCB Kit” The support facilitates the adaptation of diversified accessories in the later period, and also upgrades the display and protection of the battery. Next, let us use the combination of graphics and text to upgrade the "upgraded and optimized version" of the FC980M Union PCB kit ” Carry out a phase of renovation and sharing.
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1. Preparations required for transformation
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▲Because Leopold does not officially sell accessories such as casings and positioning boards, at this stage, it is still necessary to purchase an FC980M mechanical keyboard as a basis for subsequent transformation.
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2. "Upgrade and Optimized Edition" FC980M Youlian PCB Modification Kit Function Introduction
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▲Since the second batch, the double-sided color of the PCB has been changed to black, and the prompt characters of the shaft position have also been added on the front.
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▲Because in the early stage, I learned that a lot of beginner players will weld the shaft seat reversely when they touch the plug shaft seat for the first time, so that the shaft body cannot be inserted. Therefore, the position reminder of the plug shaft seat has been added on the back; taking into account the follow-up It is possible to adapt the PCB to other types of enclosures so the fixed position of the main control is modified; return to the original diagonal copper pillar to fix the main control to ensure that the main control will not be deformed or twisted while being stable.
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▲Because there have been cases where the device connection & switching indicator in the upper right corner was bent and damaged during transportation, the original double-leg lamp was changed to a patch-type warm yellow LED. Keep the front of the PCB clean and tidy while ensuring the functional experience remains unchanged.
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▲Considering that positioning boards compatible with steel-free satellite shafts will be introduced in the future, support for steel-free satellite shafts has been added to the PCB to adapt to diversified accessories.
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▲In order to make the positioning plate fixed more firmly 5 screw fixing holes are added to the entire PCB, which can be fixed on both sides by screws and through-wire copper posts
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▲The FC980M keyboard was originally equipped with a shaft body, but after simulation, it was found that if the plug-in shaft seat is designed on the upper side, the positioning pin of the positioning plate and the plug-in shaft seat will conflict with each other when using the original positioning plate of the keyboard. If you want to continue using it, you need to correct it. The positioning foot is twisted, which will cause a lot of unnecessary troubles in the subsequent disassembly of the positioning plate??, so through the design change, the plug-in shaft seat is designed below, that is, it is changed to an inverted shaft body, which is not only possible Solving the conflict of positioning feet will not have any impact on the later use
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▲The main control is fixed with standard M2 screws and copper pillars
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Three, accessories and power supply system PCB function introduction
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▲“FC980M Youlian PCB Retrofit Kit” Accessories include: power supply system PCB*1, lithium battery*1, main control connection cable*1, main control connection power line*1, key wire separation module connection harness*1
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▲A lithium battery connection socket and a main control power cord connection socket are designed at the bottom of the front of the power supply system PCB.
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▲The front left side of the power supply system PCB is designed with a key wire separation module wiring harness socket. In order to better charge stability and subsequent upgrades of diversified accessories, the key wire separation module connection wiring harness has been upgraded and replaced, and there will be detailed replacement diagrams later.
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▲A multi-function switch is designed on the back of the PCB of the power supply system, and the No. 1 switch is the power indicator switch: After turning on the switch, the LED patch lights on both sides of the switch will reduce the power to different degrees and display white from high to low.>Yellow> Red > off; No. 2 switch is the main power switch of the keyboard: you can turn off/on this switch when not in use for a long time or when you go out; No. 3 switch is the charging switch: This switch is designed to add a fuse to the charging system, so When you plug in the data cable and connect to the computer for charging, you need to turn on the No. 3 switch to enable the charging function. If you don’t turn on the lithium battery, it will not be charged.
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▲For consistent aesthetics, when welding the main control power line, the original solder is sucked out and new solder is soldered.
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▲The main control power cord red is positive and black is negative. When welding, the upper part is red and the lower part is black. Note: the switch on the main control is in the open state at the bottom, and the position is the same as in the figure.
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Four, accessories installation
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▲The main control and main control cables have been installed. The main control of K375S is a coexistence of Ulink 2.4G+Bluetooth 3.0, which can adapt to more usage scenarios and people. Ulink and Bluetooth switch quickly with each other, and there is almost no connection delay caused by switching.
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▲The wiring harness connected to the key wire separation module in the picture is the original wiring harness. The wiring harness needs to be replaced with the wiring harness equipped in the accessories
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▲The wiring harness of the key wire separation module has been replaced
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▲The picture shows the best position of the wire harness of the key wire separation module, which is convenient for subsequent connection with the PCB of the power supply system
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▲The wiring harness of the key wire separation module is connected to the PCB of the power supply system
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▲The connection between the lithium battery and the PCB of the power supply system is complete（The lithium battery in the picture is 1300mAh）
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▲3000mAh lithium battery needs to cut a section of reinforcing ribs. Note: After cutting, the burrs should be smoothed to avoid piercing the lithium battery
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▲The location of 3000mAh lithium battery is displayed. The contact surface between the lithium battery and the casing can be fixed with double-sided tape, glue dots, etc., or Teflon tape can be used to fix the front side.
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▲The modification of the accessories on the bottom shell is completed
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▲Because you need to use the positioning plate in the original keyboard, after disassembling the entire shaft body, separate it from the original PCB.
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▲A layer of wool felt silencer pad can be added between the positioning board and the PCB, and the measured mute effect is very good
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▲The remodeling of the inner tank is completed
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Five, shaft
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▲The axle body uses the Jincha axle V3 version that has just been listed by TTC. The V3 version has better paragraph touch, better feel consistency, and the axle center is optimized, and the shaking is smaller.
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▲TTC Golden Tea Axis V3 Picture Tour
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▲TTC Golden Tea Axis V3 Picture Tour
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▲TTC Golden Tea Axis V3 Picture Tour
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Six, assembling complete picture reward
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Seven, summary
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Constantly hitting the wall and constant optimization will make a product gradually improve. Originally, people only wanted to have a keyboard for input and gradually pursued a good-looking and easy-to-use keyboard. Later, they yearned for a good-looking, easy-to-use, durable, and innovative keyboard. Today, there are too many convenient functions and black technology of revolutionary products appearing on the keyboard. I believe that in the future, wireless keyboards will become more and more popular, and stable and diversified wireless keyboards will be chosen by more people. It didn’t take much time to transform the entire keyboard. The time to dismantle the axis is the longest. The simple, easy-to-understand, convenient and quick way of transformation will make people feel physically and mentally happy and full of accomplishment. If there are students who are looking for a wireless dual-mode keyboard in the near future, you can pay attention to this transformation sharing. After all, the advantage of Ulink is much higher than other 2.4G.