Author Topic: FC300 - Anyone have pics of FC-300...INSIDE?!?!  (Read 652 times)

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Offline dayn

FC300 - Anyone have pics of FC-300...INSIDE?!?!
« on: July 14, 2010, 12:20:47 PM »
Anyone take it apart and have a picture of the FC-300 inside? Thanks!
« Last Edit: April 29, 2015, 06:28:29 PM by admsustainiac »

Online sixeight

Re: FC300 - Anyone have pics of FC-300...INSIDE?!?!
« Reply #1 on: January 16, 2016, 08:17:02 AM »
Was looking for pictures of the PCBs of the FC300 on the internet and couldn't find any. So I had to take one myself.

I did not expect to find this many boards. I found:
* a main board with the small buttons, the displays, and connectors for power and midi.
* a seperate board with the jack connections for external pedals
* two boards for the footswitches and leds
* a small board for the rrc2 connection
* a small board for the led of expression pedal 2
* two small boards for the potmeters of both expression pedals



The reason I looked is to get some more ideas for the VController v2
« Last Edit: April 01, 2016, 08:50:29 AM by sixeight »

Offline Elantric

Re: FC300 - Anyone have pics of FC-300...INSIDE?!?!
« Reply #2 on: January 16, 2016, 01:38:05 PM »
It's convention in most consumer products to use separate PCB Board for high speed CPU / DSP, LCD fine pitch components as these often require 4 to 8 layer PCBS and these cost more , so they design a relatively small PCB.

Then for low speed I/0 switches, they design a separate larger one or two layer PCB often only for switches and analog I/O Connectors  with ribbon cable connections between the PC boards

This design strategy  lowers the final manufacturing cost, and lowers  the EMI  / FCC / CE Emissions

This strategy has been used on every Boss GT-x / VG-x ever made.
GT-100


GP-10


VG-99 (oberseve the added copper EMI shielding in between the PC boards, lowers noise, but also important for  passing global EMI  / CE / FCC emission standards  - since the VG-99 used a Plastic Chassis,it is more difficult without the copper EMI shields     



FCB-1010
« Last Edit: January 16, 2016, 04:31:45 PM by Elantric »

Online sixeight

Re: FC300 - Anyone have pics of FC-300...INSIDE?!?!
« Reply #3 on: January 16, 2016, 02:38:16 PM »
Peaking inside the GR-55 and the GP-10, there are 2 main boards with an extra one for the GK connector - which is needed to get the lock of the 13 pin plug on the right side.

The stair stepped design of the FC-300 explaines the two boards for the switches. I just did not expect an extra board for jack i/o and for the main board to be separate as well...

Offline admsustainiac

Re: FC300 - Anyone have pics of FC-300...INSIDE?!?!
« Reply #4 on: January 18, 2016, 03:11:46 PM »
Good reference for understanding control of EMI /RF Emissions

http://www.audiosystemsgroup.com/RFI-Ham.pdf

http://www.audiosystemsgroup.com/
« Last Edit: January 18, 2016, 03:12:52 PM by Elantric »