送给爱动手的网友,希望对你们有帮助。很多东西看起来复杂,实际上并不那样。试了成功了第一次,你就会有第二次。如果不去试一次,那就永远没有成功的第一次。
1. Laptop:
症状:在2015年,用了近10年的 laptop 不能显示了。下图里,注意在照相机的闪光灯下还可看到微弱的字在屏幕上。因为2005年出的laptop是LCD荧光屏,它需要ccfl(cold cathode fluorescent lamps) deliver consistent lighting across the display。它坏了,所以荧光屏不亮了。
eBay上买了一个 ccfl backlight (你得按照你的laptop屏的尺寸买)around $10
例如:
https://www.ebay.com/itm/404224231633?hash=item5e1da448d1:g:O4oAAOSwbrldA1X3&amdata=enc%3AAQAIAAAA4Jkb%2BKWERT2DvLpMW0olp%2BxPT0CKTyjr3NQmFUa1pvzcb3UFUEXvQGpK4MPln8YM0OiZ1rODn2%2FUCgx3vsUJnfneFdm3ZucuQwSFLUez0%2FhUaTRHLc08pt1gAMf%2FeSWO5TFco%2F253%2BdXuyO32vNSmor5pR6iTLZa6ltarkcJ4YgKtfHhPkpk%2FR9EaVltH4GTNNRkWaJ%2F7GRZxM6jftfjDPbsnVmkYw%2BpPpjVA%2F5pbCAFY60Q9wL3RzHsKBEerfG0VRL6lPySYHemardf0Etw3fXt9O8fEmGmwgIY%2FplnEdHC%7Ctkp%3ABk9SR-Si3bjvYQ (你得按照你的laptop屏的尺寸买):
我的:
拆下旧的,换上新的:
就成功了:
2. DSLR (digital single lens reflex) Camera.
起因:拍Pelican时,一个浪打到camera上,因为是海水,海水里有盐,会腐蚀相机里的线路板,所以必须清除里面的海水。拆了DSLR camera:
只有一点水进去了,擦干了。相机就没事了。
3. DSLR相机的电池。电池很贵$30-40 a piece. 可以修,换里面的电池,比买新的便宜。
用刀切开外壳,
上图上方上的电池是我换上的新电池,下方是用原来拆下来的好电池。用glue gun封好,用刀切平:
Tip for choosing a cylinder-shaped lithium -ion battery:
常用的lithium ion battery nomenclature: diameter (two digits) in mm +length (two digits) in mm.
such as battery 18650, means the diameter is 18 mm, the length is 65 mm。
4. 换了MP3 player里的电池:
症状:电池充不上电:
打开外壳,用吉他的picks:
https://www.ebay.com/itm/295233264431?hash=item44bd461b2f:g:MAgAAOSwS41fIO-s&amdata=enc%3AAQAIAAAA4I%2FC6YAWKXIc1xfAnR%2FAxLjlKKekYw9pzdm8ehpLePFJMYvAknd9CTVrfO13JUfEJs%2FpweQ9TCfOKGwmqKlG%2FnhYjWIPv0j65Bg9FVX85rBWPfM5oGR%2FtDo6slviTlUYl%2FRjkdp1G7JI96SZcaCraljGgJe2H7c8qnzFwP2DyKpBUcx4LnH%2FkCV1EyCk5%2FUfYuMihMaxYew0yZU7IGqG7RkxtNIsNcRcm%2FvCV3MLNBtgdhVGXGNazDV2vCl67iZnd%2FZYt57UgubhAteUtc2beiSis1aOSSYrDlEXIiS39XAl%7Ctkp%3ABFBM4Ljbu-9h
原装电池:
换上403450 电池:
https://www.aliexpress.us/item/2251832717902131.html?spm=a2g0o.productlist.main.1.69553eab95QY3T&algo_pvid=028cb724-8724-4b4e-b370-53bdb2e5c1f3&algo_exp_id=028cb724-8724-4b4e-b370-53bdb2e5c1f3-0&pdp_npi=3%40dis%21USD%216.88%214.47%21%21%21%21%21%402102172f16814081566815588d06fd%2165856197961%21sea%21US%21133992279&curPageLogUid=3DiXa2XIBstC
换好后,把壳装好:下图是网上的:
Tip for choosing a rectangular-shaped lithium ion battery:
1. Dimension.
2. Ah (安培小时)。Choose battery's Ah as close as possible to the original one.
nomemclature: thickness (one digit) in mm, width (two digits) in mm, length (two digits) in mm.
example battery 403450 (我用的,不是上图的): 4 mm in thickness, 34 mm in width and 50 mm in length.
5. 换了camera里的一个开关:
症状:向上滑动(下图里camera的右上角的大黑块)应该让相机工作的开关不能让camera工作。
是开关坏了,得修。
camera 和开关(camera下边的两个小黑东西):
下图:左新的,右坏的。注意左边的有一小杠杆,右边的没有,是坏掉了。大小不一样,但作用一样。在digikey买的,大概一个$2-3.
6. DVD player
症状:DVD player不工作,面板上的 LED不亮。
The remote control is working (用remote control对着camera,按下remote control的任何一键,take a picture), 紫色点是remote control 发出的红外线,人眼看不见,camera的sensor可以detect:
查了一下是power supply坏了,
原来坏了的(右边的线路板):
Aliexpress买了一个
https://www.aliexpress.us/item/3256804160644273.html?spm=a2g0o.order_list.order_list_main.131.32ba1802oIPHE2&gatewayAdapt=glo2usa&_randl_shipto=US
$1.26+$2.61shipping, 14天到货。
换上去新的power supply (右边的线路板),因为小,底下加了一块线路板(浅棕色):
修好了。
7. microwave oven:
症状:Sharp carousel microwave oven, LCD display always has some problem in every 2 to 3 years, such as button 2 does not work this time.
拔掉电源线。用这样的tool去open microwave oven的后盖。
https://www.harborfreight.com/security-bit-set-33-piece-68459.html
取下固定线路板的2个螺丝钉:
取下的线路板:
线路板反面, 用酒精棉擦干净照片下部的线路板上的多个铜接触点,等酒精蒸发掉,再把线路板装回:
把后盖装好,就修好了 (in the key pad, key 2 could be used again):
8. Electric blower:
症状: 插上电源,按开关,嗡嗡响两三声,motor不动.
是启动电容坏了。
换下来的电容 (24 µF, 260 V AC) :
下图是新的电容, bought from Amazon,用时把棕红绿线焊在一起,两根黑线焊在一起,电容并联成15 µF。虽然电容量小于24 µF,但对交流电机启动无影响。耐压电压相似(250 vs. 260 V AC),体积稍小,可以放在橙色外壳里。
https://www.amazon.com/gp/product/B074W6BN2M/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1
换后就修好了。
9. ebay 上买了一个 AC motor speed control (几年前 $3,现在 $11)。注意安全。绝对不推荐这个。因为交流线在输入和输出的结点处无很好的绝缘保护,容易触电。
https://www.ebay.com/itm/363353187159?hash=item549989a357:g:drAAAOSwsMpgb8UJ&amdata=enc%3AAQAIAAAA8PscDjC44U6m0yZcv2yjJLKVVvuQUOL%2FZ%2BoRPZmUSDNHOA1LZwcsqOg%2B%2B8poSjwRDNWknuHrwh8q70O0dGWsZQDIYHlUCQmmA6b9RwZqpq1QXL33jqqFM60bOpfZYRwoojzZXMnIkLa7O7FtvhDz3Th7E6KQhqc7xXw1%2BU3V83TZSA9RxqOrfuHuGRwN%2FSWaj35hX050r%2BGIImQa3wfCNOdaJ2Wg1fGjqbHy8qU64baIJmWHGOEUF2TGMqlvXAQvhwoZJL%2B16yS5klJ6axYemKAoBYXwFNOzO%2FWhBJimibw7n4eMii4Uf2dB7c%2FlXogrFg%3D%3D%7Ctkp%3ABk9SR4Dlu7fvYQ
给它装上线:
就可以让single speed AC motor 变速了:
不推荐上2图上的。下面这个安全,不用自己装线:
https://www.ebay.com/itm/255353936635?hash=item3b7447dafb:g:MDEAAOSwsw1h8euR&amdata=enc%3AAQAIAAAA0Oe%2FRppyV78jcwau4iMwx1Nmgg9Aho%2BW92AwNt1nq0I93Fxi5jdBywo3IhIXTHzdb6Fu7HjBk0cD80awXnWWTnrwN5XxkIlk5pKBCCks6XNIheF7hlOhiylWoSJoL1wIxSGvmpQvNGfybNPLorNyXqWEXDxVwRf5IhF2SlO6b53xvERHKzFgC5XtkHib4AQB0MAh9oIjZEs0QDhe6bTVb0xaeo1bmumZa4EGn6c%2FW4NnkyjM9%2BkGIsWR8WRM9aR3FnICakSqCN9jKpfqaMuffdY%3D%7Ctkp%3ABlBMUPzku7fvYQ
谢谢观看。
|