Check data lines - Feb 29                  ras
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IB#2, Chan G, 7612-300.  Termination facing SVX is 75 ohm series
   (+ pullup-down diodes).
AVDD=5.4v
DVDD=4.34V
AVDD2=3.64

Note nasty reflections, particulary for D5, and D2.
Note also that 2nd and 5th pulses of Dvalid are narrow.

7612-300 died before I could finish (or else I shorted
chan G on the board).

Measurement points (refer to schematic):

Dvalid - pin 1, U85 (at input to interface board transceiver)

D7: U82, pin 1
D6: U82, pin 3
D5: U82, pin 4
D4: U82, pin 6
D3: U82, pin 7
D2: U82, pin 9