20MHz Downloader Modification
Ŀ
                                               Ŀ                     
                                               o                     
                                               o                     
                                       A and B A             Ŀ   
                                       are SMT A             o o   
                                       6800pf  B             o o   
                                       caps    B             o o   
       Connect the output of           (solder o             o o   
       a 20MHz oscillator      Ŀ     to back o     Cut off o X   
       to OSC1            OSC1 o     of PCB) o     the X   o X   
                           GND o             o     pins    o o   
       The oscillator     OSC2 o             o     (OSC's) o o   
       can be powered                       o             o o   
       from pins 12 and      RESONATOR                      o o   
       24 of one of the       SOCKET           1K SIP          o o   
       SRAM chips                                              o o   
                                                               o o   
                                                                  
                                                               HEADER  
                                                                       
                                                                       
                                                                       
                                                                       
                                                                       
                                                                       

                    PIC16C5x Downloader (Top View)
