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HJT Model 100 User's Guide Appendix A-1
Appendix A. Extron Switcher Interface to Model 100
This appendix provides instructions on how to set up and configure the HJT Model 100
Projector for proper operation with Extron Switchers 10+, 8, and 4LD.
The baud rate for the Extron switchers is 19200. Since Port A is locked to a baud rate of
9600, Port B should be used for Extron Switchers. The projector port assignment must
be selected and the VIC channel assignment must be edited for a switcher.
To select the Baud Rate:
1. From the M
AIN
M
ENU
, select #7, S
YSTEM
, then #4, C
OMM
. S
ETUP
.
2. From the C
OMM
. S
ETUP
menu, select P
ORT
B S
PEED
.
3. From the S
PEED
S
ELECTION LIST
, select 19200.
4. Press E
SCAPE
to go back to the C
OMM
. S
ETUP
level.
To set the projector port assignment:
1. From the C
OMM
. S
ETUP
menu, select P
ORT
B D
EVICE
.
2. From the D
EVICE
T
YPE
list, select #3, V
IDEO
S
WITCHER
.
3. Turn power O
FF
at the remote control.
4. Wait until the Arc Lamp fans have stopped running, and provide a system
“cold boot” by toggling the circuit breaker on the projector rear panel to O
FF
,
then back to O
N
.
To edit the VIC channel assignment (refer to Section 4.11 on page 4-39
for more information on editing):
1. From the C
HANNELS
list, select the channel to assign the switcher.
2. Press M
ODE
. This is a toggle key that brings up a submenu for editing
(pressing M
ODE
again removes the submenu.)
3. Select E
DIT
from the submenu and press E
NTER
.
4. Use the right arrow key to toggle over to the third VIC column.
5. Press E
NTER
and use the up/down arrow keys to select the current switcher
channel number. Press E
NTER
when the current switcher channel number is
shown.
6. Press E
SCAPE
to exit the E
DIT MODE
.
A.1
Extron
Switcher Configuration
The Extron switcher must have two (2) important parameters for it to work
optimally. First, it must be in the “Master” mode. If in “Slave” mode, the display
power and video mute buttons are internally inhibited. Second, it must receive a
projector “Power On” message. This message is sent routinely during a projector
“Power On” sequence. If the “Power On” message is not received due to cabling
problems, baud rate problems, projector configuration, or switcher emulation
problems, the video mute will not work properly.