K8200 is a 3Drag clone - configuration should work with 3Drag http://reprap.org/wiki/3drag, too. Please report.
updated manually with parameters from genuine Vellemann Firmware "firmware_k8200_marlinv2" based on the recent development branch
VM8201 uses "DISPLAY_CHARSET_HD44870 JAPANESE" and "ULTIMAKERCONTROLLER"
german (de) translation with umlaut is supported now - thanks to @AnHardt for the great hardware based umlaut support
I @CONSULitAS tested the changes on my K8200 with 20x4-LCD and Arduino 1.6.12 for Mac (SD library added to IDE manually), 2016-11-18 - everything works well.
Source for genuine Vellemann Firmware
V2.1.1 (for z axis upgrade, date branched: 2013-06-05): firmware_k8200_v2.1.1.zip
V2 (with LCD/SD-Support, date branched: 2013-06-05): firmware_k8200_marlinv2.zip
V1 (without LCD/SD-Support, date branched: 2012-10-02): firmware_k8200_marlinv1.zip