Graphics, Figures & Tables ⇒ Overlapping Boxes in Block Diagram

[prakasam]

Hi,

I'm using the schemabloc package to generate block diagrams. Following example which is given in tutorial, is not generating a proper diagram. The boxes are overlapping each other.

Code: Select all

\documentclass[a4paper]{article}
\usepackage{tikz,schemabloc}

\begin{document}
  \begin{tikzpicture}
    \sbEntree{U}
    \sbBoucleRetour[3]{U}{C/$C(p)$,A/$A$,H/$H_{sys}(p)$}{G/G}
    \sbSortie[5]{V2}{H}
    \sbRelier[$V_2(p)$]{H}{V2}
  \end{tikzpicture}
\end{document}

Can anybody give some suggestion regarding this?