wiki.mbirth.de/know-how/hacking/audiomate/_posts/2009-06-27-hardware.md

created	layout	layout_old	redirect_to	tags	title	toc	updated
2009-06-27 00:13:04 +0200	redirect	default	https://blog.mbirth.de/archives/2009/06/27/audiomate-hardware.html	know-how hacking hardware audiomate allsound	AudioMate Hardware	false	2009-06-26 00:41:29 +0200

Opened with front panel


PCBs complete


• the yellow PCB on the left is the WIFI antenna
• the green PCB on the right is the FM antenna
• the small metal thingy right of the display is the FM tuner
• the black thingy left of the display is the IR receiver

Main PCB


• on the top are two connectors, an 8-pin (J9) and a 4-pin (J5) one
• the 4-pin connector, J5, is the serial console interface, the pins are as follows (left-to-right):
  • +5V
  • GND
  • TxD (from SoC)
  • RxD (to SoC)
• the larger ICs are:
  • the CPU, a Lattice 4128V CPLD
  • a IDT 72V04 L35J FIFO chip
  • a Princeton PT8406 MP3/WMA decoder

Back of Front PCB


*[PCB]: Printed Circuit Board *[FM]: Frequency Modulation *[IR]: Infrared *[GND]: Common Ground *[SoC]: System-on-Chip *[ICs]: Integrated Circuits *[CPU]: Central Processing Unit *[CPLD]: Complex Programmable Logic Device *[FIFO]: First In, First Out