PIC K149-B/C原理图与固件

标签：单片机开发,单片机原理,
PIC K149-B/C原理图与固件，原理图为PDF文件，英文说明

固件文件是：DIY149BC.HEX
The   first   thing   to   do   is   inspect   the   PCB   for   shorted   or   open   tracks   or   other
damage. Be aware of the static warning when doing this check. When you are
satisfied that all is well, then you can proceed.

Start with the flattest parts first, which are the resistors. Hold each resistor body
by the thumb and forefinger and use your other hand to loosely bend both of the
leads over at right angles at the same time. Try not to make the bends too sharp,
and you will find that they slide straight into the mounting holes on the board.

Leave the pigtails on each of the components until after soldering as the extra 无插件，无病毒
lead   length   serves   as   a   heat   sink   for   the   component.   Try   not   to   leave   the
soldering iron on the components too long or you risk damaging them. The usual
method is to hold the iron tip so that it touches the component lead and the PCB
pad   at   the   same   time,   and   then   apply   a   small   dab   of   solder.   This   operation
should   only   take   about   a   second   or   two.   If   you   are   unsure   of   your   soldering
ability,   find   some   spare   components   and   practice   on   these   before   building   the PCB下载站
programmer board.

Check that each solder joint is bright and shiny and doesn't look like a big dull
blob which could mean a dry solder joint. The solder should flow freely onto the
component lead and solder pad if it is to be a good joint.

After the resistors are soldered in, recheck your work and then mount the diodes.

                        There are 2 LEDs that can be mounted next. Make sure they
                        are oriented correctly. The Anode is marked on the PCB and
                         is  the   longer    of  the  two   leads    on   the  component.       The 无需注册
                        Cathode   has   a   flat   surface   on   the   LED   body   and   is   also
                         marked on the board.， 大小：114 KB