Model AD-340
18
What is “AUTO-MUTE”?
It is recommended to leave the “AUTO-MUTE” turned on in the GUI. The Auto-Mute will
automatically mute the outputs when audio settings adjustments are made. If unchecked, you
could hear undesirable transitional sounds when the audio settings are being changed.
The Front Panel is locked completely – How can I get it back to an unlocked
state?
The Front Panel must be unlocked from the GUI “Front Panel Lock” checkbox.
I can only change temperature when in FEET or METER mode.
Yes - Temperature compensation is only available for external delay calculations based on FEET
or METER and blocked when in MSEC or FRAMES mode
.
Why is the Sampling Rate not selectable for Digital Inputs?
The source controls the digital audio sampling rate and cannot be changed. Standard Sampling
rates: 44.1 kHz for CD, 48 kHz or 96 kHz for DVD and BD. (Some Satellite STB use 32 kHz.)
Why does there seem to be a 2:1 difference between the settings and my
calculations when delaying by FRAMES?
The AD-340 calculates the FRAME delay based on a progressive type video. If you are using
interlaced video, the delay for ½ of the picture is a ‘FIELD’ and takes 2 ‘FIELDS’ per ‘FRAME’ and
you need to account for that in your calculations.
Why do the 4 Front Panel LEDs only blink when I power on the unit?
The AD-340 verifies that the internal firmware is valid. If an error is detected, the system will
automatically wait for firmware to be loaded. This should never happen in normal use, but the GUI
can be used to reload firmware into the system. Contact Hall Research Support for the latest
firmware file.
Why is the Upgrade Firmware option on the Tools menu grayed out or
doesn’t exist?
The ‘Upgrade Firmware’ option requires GUI V1.1 and V1.1 firmware or later.
If the option is ‘grayed’ out, the device can only be upgraded by Hall Research.
4.2 Contacting Hall Research
There are no user serviceable parts inside the device. Opening the device will
void the warranty.
If you determine that your AD-340 is malfunctioning, do not attempt to repair the
unit; instead, contact Hall Research Technical Support at 714-641-6607.
Before you do, make a record of the history of the problem. We will be able to
provide more efficient and accurate assistance if you have a complete
description.
4.3 Shipping and Packaging
If you need to transport or ship your unit:
•
Package it carefully. We recommend that you use the original container.
•
Before you ship the units back to Hall Research for repair or return, contact
us to get a Return Authorization (RMA) number.
