====== Inside an Ergodex DX1 ======

I decided to throw caution to the wind tonight and cracked open my DX1, blatently ignoring the warning sticker on the back of the DX1 that reads **"Under no circumstances should this label be removed. ... Tampering with or removing this label will nullify all product warranties and will likely cause your DX1 Input System to malfunction"**.  I'm happy to report that my DX1 is still functioning perfectly after this procedure.  The label itself is metal backed so probably does serve some purpose, personally I cut a slit into my label around the center hole (under which is a screw that needs to be removed before the unit can be opened) so that I could fold the label back down again.



===== IC Information =====

Here's the numbers from the IC's on the main PCB:

<code>
SILABS F321 DCNA92 0521+
</code>

Programmable Micro-controller

The Silicon Laboratories, Inc. C8051F321 is a High-speed 8051 MCU with 21 I/O Lines, 25 MIPS Throughput, 25MHz System Clock, In-system Pogrammable, 4 Timer/Counters, Real-time Clock, PCA, Compare/Capture, 10-bit A/D Converter, SMBus, I2C, SPI, UART, USB, 1K Byte USB FIFO, 16K Bytes FLASH, 256 Bytes Data, 1K Bytes XRAM.

[[http://www.silabs.com/tgwWebApp/public/web_content/products/Microcontrollers/USB/en/C8051F320DK.htm|Development Kit]]

[[http://www.keil.com/dd/chip/3575.htm|Data Sheet, etc]]


<code>
72C B407
</code>

<code>
P435B MM74HCT 164M
</code>

MM74HCT164 8-Bit Serial-in/Parallel-out Shift Register

[[http://www.fairchildsemi.com/pf/MM/MM74HCT164.html|Fairchild Semiconductor product page]]

[[http://www.fairchildsemi.com/ds/MM/MM74HCT164.pdf|Data Sheet]]

<code>
P14SF 74AC00
</code>

74AC00SC Quad 2-Input NAND Gate

[[http://www.fairchildsemi.com/pf/74/74AC00.html|Fairchild Semiconductor product page]]

[[http://www.fairchildsemi.com/ds/74/74AC00.pdf|Data Sheet]]

===== Pictures =====

Click to see full-size images (warning, 2.5mb each!)

[[http://ergodex.hydraproductions.com/images/Ergodex_DX1_20070212/DSCF0087.JPG|{{dscf0087_thumb.jpg}}]]

[[http://ergodex.hydraproductions.com/images/Ergodex_DX1_20070212/DSCF0088.JPG|{{dscf0088_thumb.jpg}}]]

[[http://ergodex.hydraproductions.com/images/Ergodex_DX1_20070212/DSCF0089.JPG|{{dscf0089_thumb.jpg}}]]

[[http://ergodex.hydraproductions.com/images/Ergodex_DX1_20070212/DSCF0090.JPG|{{dscf0090_thumb.jpg}}]]

[[http://ergodex.hydraproductions.com/images/Ergodex_DX1_20070212/DSCF0091.JPG|{{dscf0091_thumb.jpg}}]]

[[http://ergodex.hydraproductions.com/images/Ergodex_DX1_20070212/DSCF0092.JPG|{{dscf0092_thumb.jpg}}]]

[[http://ergodex.hydraproductions.com/images/Ergodex_DX1_20070212/DSCF0093.JPG|{{dscf0093_thumb.jpg}}]]

[[http://ergodex.hydraproductions.com/images/Ergodex_DX1_20070212/DSCF0094.JPG|{{dscf0094_thumb.jpg}}]]

[[http://ergodex.hydraproductions.com/images/Ergodex_DX1_20070212/DSCF0095.JPG|{{dscf0095_thumb.jpg}}]]

Enjoy!