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Alesis MultiMix FireWire 16 - Page 32

Alesis MultiMix FireWire 16
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XF1 MAIN PCB Rev C Last Revised:
RevChange Documen
t
8/31/2005
SCH PCB CAM
Suggested
b
y
:
DATE Performed by: DATE Description of change: Reason for change:
TOP LEVEL CHANGES
JK 6/7/2005
A
RG 8/31/2005
Change all text from Rev B to C Standard procedur
e
JK 6/7/2005
Update all Part Types Standard procedur
e
JK 6/7/2005
Review/Integrate all outstanding ECN
s
Standard procedur
e
Note: ***A new solderpaste stencil IS required**
*
Components were added.
YH 8/29/2005
A
dd 0.1uF caps to bridge firewire GND and system
ground near each firewire-GND-connected mounting
hole on the bottom side.
EMC compliance.
YH 8/29/2005
dd copper to the three isolated mounting holes.
Then connect the copper via 0.1uF caps to system
GND on the bottom side.
EMC compliance.
YH 8/29/2005
A
dd 220pF caps between all audio lines and system
GND for J1 and J4 on the bottom side.
EMC compliance.
YH 8/29/2005
ARG 8/31/2005
Add series 0-Ohm jumpers for signals
SDATA_CH_13/14, SDATA_CH_15/16, and
EXP_12/*16. The resistors should be placed as close
as possible to the DICE II. Include note stating that
these resistors are to be installed only for XF7.
EMC compliance.
ARG 8/31/2005
Remove TDIF/ADAT clocking option jumpers
Only needed for clocking. May have been EMI
contributer.
SCHEMATIC CHANGES
JK 8/25/2005
Change netname EXP_*12/16_CH to
EXP_12/*16_CH.
Match stuffing instructions on the Firewire Expansion
PCB.
PCB CHANGES

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