UNI-T UT61E Multimeter Backlight Modification

There is no backlight originally on UT61E, but the chip (ES51922) supports backlight function. The HOLD button is useless for me so I decided to use this button as backlight ON/OFF button. For more information please check the links. Enjoy. Pics. http://img841.imageshack.us/img841/514/mhfuq.jpg http://img839.imageshack.us/img839/3936/5wb1vc.jpg (SMD 3528 LED Used) Datasheet of the ES51922 http://www.cyrustek.com.tw/spec/ES51922.pdf Also check this: http://translate.google.com.tr/translate?hl=tr&sl=auto&tl=en&u=http%3A%2F%2Fwww.crystalradio.cn%2Fbbs%2Fredirect.php%3Ffid%3D24%26tid%3D168934%26goto%3Dnextnewset Edit: You can find discussions and more info about this DMM on eevblog forums. http://www.eevblog.com/forum/product-reviews-photos-and-discussion/uni-t-ut61e-multimeter-teardown-photos/