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7700 MultiFrame Manual
7712HDC HD Broadcast Quality Down Converter
7.2.
CONFIGURING THE MODULE FOR FIRMWARE UPGRADES
Firmware updates can be performed using the Upgrade menu item on the Utilities menu (see section
6.10.3) or using the UPGRADE jumper.
UPGRADE
7.3.
SELECTING WHETHER THE GENLOCK REFERENCE INPUT IS TERMINATED
TERM
The TERM jumper J9 located at the rear of the APB3FMTCON submodule is used to
terminate the genlock loop input. Then it is in the 75R position a 75 ohm terminating
resistor will connect the input to ground. When it is in the HI-Z position the genlock loop
input will be high impedance.
7.4.
SELECTING THE GPI PULLUP VOLTAGE
The GPI jumper J80, located near the rear of the APB3FMTCON submodule, selects whether the general
purpose inputs will be pulled up to +5 volts or +12 Volts. Figure 11 shows the jumper configuration and the
GPI input schematic.
GPI
To set the pull-up voltage to +5 volts set the jumper to the +5V position,
To set the pull-up voltage to +12 volts set the jumper to the +12V position,
7712HDC-34
The UPGRADE jumper J16 located at the front of the main module is used when
firmware upgrades are being done to the module. For normal operation it should be
installed in the RUN position. See the Upgrading Firmware chapter in the front of
the binder for more information.
To upgrade the firmware in the module unit pull it out of the frame. Move Jumper
J16 into the UPGRADE position. Install the Upgrade cable provided (located in the
vinyl pouch in the front of this manual) onto header J24 at the card edge. Re-install
the module into the frame. Run the upgrade as described in Upgrading Firmware
chapter. Once the upgrade is completed, remove the module from the frame, move
J16 into the RUN position, remove the upgrade cable and re-install the module.
The module is now ready for normal operation.
GPI
Command
Figure 11: Setting the GPI Input Pullup Voltage
J80
+ 5
+ 12
VDC
VDC
3.6K
GPI
GND
Revision 1.2
to
internal
circuit
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