Gigabeat MEG 50JS Info

PCB Scans

Firmware

• A firmware update is available on the Toshiba site (you need a valid serial number to download it, this one is working : J7216412M) :
  https://www.toshiba.co.jp/mobileav/cgi-bin/dl_gb12.cgi
  The firmware is a Linux-based system, similar to the Gigabeat F.

Hardware

• CPU
  • Neomagic Mimagic : NMS7210A-FB280C (arm 720t) : http://neomagic.com/product/mimagic3_pb.pdf

• Memory
  • 128Mb SDRam (2M x 16Bit x 4 Banks) : K4S281632D
    http://pdf1.alldatasheet.com/datasheet-pdf/view/37068/SAMSUNG/K4S281632D.html
  • 64M (x16) Flash memory : Sharp F640BFB PTTL90
    http://www.digchip.com/datasheets/download_datasheet.php?id=506066&part-number=LH28F640BFB-PBTL60

• Compact flash / Pc Card interface chip : NMC1121A-FB144c
  http://www.diglisdesign.co.uk/nmc1121_%20Datasheet.pdf

• ISD300A
  http://www.rockbox.org/twiki/pub/Main/DataSheets/isd300.pdf

• Stereo DAC with Headphone Amp : 43L43KZ/zwg0220
  http://www.alldatasheet.com/datasheet-pdf/pdf/58124/CIRRUS/CS43L43-KZ.html

• LCD : blue back light 160 X 120

• Unknown components :
  • 1433E
  • 3002 I215 ROG
  • CO2 W140J
  • A1815 211

• gbfw-listing: Complete file listing of firmware update