Mackie d8b v3, Service Manual

Page: 23 / 117

23
DSP SIGNAL FLOW
J22-1,62
J22-3,60
J22-5,58
J22-7,56
J22-2,61
J22-4,59
J22-6,57
J22-8,55
J48-19
J48-23
J48-27
J48-31
J48-21
J48-25
J48-29
J48-33
DT1_U9
BACKPLANE
TO DSP BOARD
CONNECTOR
AND PIN NO.
CARD TO
BACKPLANE
CONNECTOR
AND PIN #
WHAT THE SIGNAL
IS CALLED ON
THE BACKPLANE
AND DSP BOARD
DT1_U10
DT1_U11
DT1_U12
DR1_U9
DR1_U10
DR1_U11
DR1_U12
BACKPLANE
TO DSP BOARD
CONNECTOR
AND PIN NO.
CARD TO
BACKPLANE
CONNECTOR
AND PIN #
WHAT THE SIGNAL
IS CALLED ON
THE BACKPLANE
AND DSP BOARD
J30-1,62
J30-2,61
DT1_U13
DR1_U13
DR J21-11
J21-9
BACKPLANE
TO DSP BOARD
CONNECTOR
AND PIN NO.
CARD TO
BACKPLANE
CONNECTOR
AND PIN #
WHAT THE SIGNAL
IS CALLED ON
THE BACKPLANE
WHAT THE SIGNAL
IS CALLED ON
THE DSP BOARD
DT
These are the signals
transmitted from the DSP
board to the extra card.
EXTRA CARD
DIGITAL I/O CARD
These are the signals
transmitted from the extra
card to the DSP board
One slot on the backplane is available for an extra digital I/O card, such as the PDI•8. It connects to
backplane connector J22 (in the ALT I/O slot). The signals to and from the DSP board pass through
backplane connector J48. There are 4 digital inputs and outputs, each carrying two data signals.
One slot on the backplane is available for the standard digital I/O card. It connects to backplane
connector J30. The signals to and from the DSP board pass through backplane connector J21. Note that
once the digital signals reach the DSP board, they change name.