
Ursprungligen postat av
nazzoo
You know,normally there’re two types cloned DM500S in China,one is the 4-layer PCB DM500S almost as same as the originals,this type produced by using 4-layer PCB and guaranteed high-quality electronic components,so its quality is excellent and could run steadily and safely.The other type is 2-layers PCB cloned DM500S,there’re so many factories and workshops producing these receivers by using 2-layer PCB and low-quality parts such as cheap ICs and tuners or even retreaded electronic components,and some important pars(such as LDO) also deleted deliberately in order to reduce the product cost,consequently,their quality is not good as the originals, the boxes can not run steadily enough.