A position detection apparatus, comprising: a position detection sensor unit, which comprises: (a) a sensor substrate on which conductors for detecting a position pointed to by a pointer (61, 62) are disposed; (b) a position pointing operation member having a first face, on which a position is to be pointed to by the pointer (61, 62), and a second face provided on the opposite side of said first face, on which said sensor substrate is disposed; said sensor substrate being fixed to the second face of said position pointing operation member; and (c) a flexible cable having a predetermined width and length, being extended from said sensor substrate so as to be connected to a signal processing circuit for determining a position pointed to by the pointer (61, 62); wherein a portion of said flexible cable, corresponding to a predetermined length extending from an end edge of said position pointing operation member toward the interior of said position pointing operation member along the direction in which said flexible cable extends, is arranged to be movable away from the second face of said position pointing operation member, wherein the position detection apparatus is characterized by further comprising an upper case; a lower case coupled to said upper case; wherein the position detection sensor unit is disposed on an upper face side of said upper case and configured to detect a position pointed to by a pointer; a signal processing circuit disposed in a space formed between said upper case and said lower case; wherein the upper face side of said upper case has a recessed portion, in which said position detection sensor unit is disposed and in which a through-hole is provided such that said flexible cable (113 A) extending in the direction along the second face of said position pointing operation member is threaded through said through-hole into the space formed between said upper case and said lower case to be connected to said signal processing circuit disposed in the space formed between said upper case and said lower case, wherein a guide portion is formed on said upper case to define said through-hole to allow threading of said flexible cable obliquely from the upper face side toward the lower face side of said upper case through said through-hole provided in said recessed portion. a position detection sensor unit, which comprises: (a) a sensor substrate on which conductors for detecting a position pointed to by a pointer (61, 62) are disposed; (b) a position pointing operation member having a first face, on which a position is to be pointed to by the pointer (61, 62), and a second face provided on the opposite side of said first face, on which said sensor substrate is disposed; (a) a sensor substrate on which conductors for detecting a position pointed to by a pointer (61, 62) are disposed; (b) a position pointing operation member having a first face, on which a position is to be pointed to by the pointer (61, 62), and a second face provided on the opposite side of said first face, on which said sensor substrate is disposed; said sensor substrate being fixed to the second face of said position pointing operation member; and (c) a flexible cable having a predetermined width and length, being extended from said sensor substrate so as to be connected to a signal processing circuit for determining a position pointed to by the pointer (61, 62); (c) a flexible cable having a predetermined width and length, being extended from said sensor substrate so as to be connected to a signal processing circuit for determining a position pointed to by the pointer (61, 62); wherein a portion of said flexible cable, corresponding to a predetermined length extending from an end edge of said position pointing operation member toward the interior of said position pointing operation member along the direction in which said flexible cable extends, is arranged to be movable away from the second face of said position pointing operation member, wherein the position detection apparatus is characterized by further comprising an upper case; a lower case coupled to said upper case; wherein the position detection sensor unit is disposed on an upper face side of said upper case and configured to detect a position pointed to by a pointer; a signal processing circuit disposed in a space formed between said upper case and said lower case; wherein the upper face side of said upper case has a recessed portion, in which said position detection sensor unit is disposed and in which a through-hole is provided such that said flexible cable (113 A) extending in the direction along the second face of said position pointing operation member is threaded through said through-hole into the space formed between said upper case and said lower case to be connected to said signal processing circuit disposed in the space formed between said upper case and said lower case, wherein a guide portion is formed on said upper case to define said through-hole to allow threading of said flexible cable obliquely from the upper face side toward the lower face side of said upper case through said through-hole provided in said recessed portion.