Manual

Model 2090 Multi-Device Controller
8. Reconnect all cables and power up the Model 2090.
After a moment, all of the indicators should flash and
then the firmware revision will be displayed in the left
display. If the batteries where dead, or removed for too
long of a period, the unit may then display
E001 error
in the left display indicating the NVRAM values have
been reset to the factory defaults. If this occurs, refer to
the list made in step one, or the parameter settings in
the “Model 2090 Parameter List” section, to make any
necessary changes based on your equipment
configuration.
P5
1
B1
C5
U2
C3 C4
C1
C2
JP2
C6
D1
JP2 488 EMUL
1-2 uP7210
2-3 TI9914
P3
1
P2
1
J10
J11
J2
J7
J6
J1
U7 U4
U2
U3
U1
LO
U6
MC68332
U5
HI
RAM
ROM
RAM
ROM
J3
J4J9
J5BJ5A
A
B
C
D
E
F
SBC332-4 REV X.X
U4
NAT4882BPL
P6
1
J1
1
SN75ALS160N
U3
SN75ALS161N
74LS04
U1
P4
1
1.5V AAA EN92
1.5V AAA EN92 1.5V AAA EN92
3 x AAA
460144_x EMCO MM/DD/YY
2090 CONTROLLER INTERCONNECT BOARD
Figure 7 Model 2090 Motherboard
©ETS-Lindgren, April 2006 139
Revision G– P#399199