Panasonic Toughpad FZ-G1 MK4

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The Panasonic Toughpad G1 (FZ-G1 MK4) is a portable industrial rugged field computer. This page is dedicated to reparing the Panasonic Toughpad FZ-G1 MK4.

Panasonic rugged tablet pse.png

Built to most of the same specifications as the Toughbook line, they are designed for professional use and are used in a wide variety of industries, including construction, defense, public safety, emergency services, government, healthcare, law enforcement, manufacturing, oil & gas and telecom/utilities.

Mainboard breakdown
Mainboard firmware

EC dump: soon.

Bios dump: badcaps topic

Known issues
  • ALC256 shorted 3.3vdc or 5vdc rail. The audio circuit design is not done proper, the ALC will die after a while, the 8ohm speaker output is poor, even on a working tablet.
  • TPS51367 shorted killing the CPU or RAM (TPS51367 is a 3-V to 22-V, 12-A synchronous buck converter with ultra-low quiescent current).
Improvements in MK5

In de MK5 board revision noted as DHLB1277ZC/X1 in the silkscreen a few design changed were made.

  • CPU was changed from SR2F0 (Intel Core i5-6300U) to SR340 (Intel Core i5-7300U).
  • Onboard RAM was doubled from 4096mb to 8192mb.
  • The audio circuit and codec were changed from ALC256 to ALC295.
  • WWAN simcard slot changed from standard SIM 25x15mm size to 12.3x8.8mm nano SIM size.
  • TPM chip was changed, can't find anything about it. The IC is made by STMicroelectronics.
AMI Model No. Configuration Port Modules

Here's a list of module expansion configurations.

  • "FZ-G1R0008T3" for No option (blank port)
  • "FZ-G1R6031T3" for Panasonic Gigabit LAN Port
  • "FZ-G1R0010T3" for Panasonic 1D/2D Barcode Reader
  • "FZ-G1RxxxxTx" for USB port