@ David: your'e so right! I forgot... (by the way: thanks for fine work!!)
@ Amanda:
and now from PC I add some pictures:
The connectur at the pcb (regard the colors!)
PIC-3 and his conector
How to put the prgramming cable to the PIC (regard the colors! Black is Pin 1)
During programming the power supply of the tuner has to be set off and the display has to be disconnected. The processor is supplied from PIC3 during programming.
73, Immo
Immo, DL5KB