Access 902 User Manual - page 7
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SELECTED
The Product Group currently selected to be the object of keypad input.
PRODUCT GROUP
A Product Group is selected by pressing its Select Key and confirmed by the
illumination of its red LED Indicator. When “selected,” input from the numeric
keypad will be displayed in the selected Product Group’s 2-digit window and
directed to its switch modules.
ACTIVE
Any Component or Product Group that is currently selected to play, i.e. part of the
signal path. The 2-digit number for all active components is shown in its respec-
tive Product Group window.
PRESS
A momentary press and release of a key . The PRESS is used for primary key
functions like entering numbers or selecting a Product Group.
DOUBLE-CLICK
To press and release a key twice in rapid succession. Used for alternate key
functions, such as turning off an active Product Group.
LPRESS
To press and hold a key until the Control Panel beeps (about 1/2 second) then
release. LPRESS is generally used to store values. Examples are defining systems
and storing current selections using A/B/C keys, etc.
HOLD
To HOLD a key down while PRESSing other keys, like the “Shift” key on a
computer keyboard.
TIMEOUT
The automatic termination of an incomplete keypad or remote control command
after a set amount of time; the control panel is restored to its previous state.
Starting the System the First Time
Once installed, the Access
™
System should be tested prior to connecting components to the switching mod-
ules. A self-test routine is automatically initiated when you first power-up the system. When the system is
powered up, you should observe the following sequence of events in the system.
A. 902/903 Test Sequence. If you encounter any problems, keep a note pad handy to record results as they
are reported in the Control Panel windows.
1. All display segments and indicators on the control panel are lit briefly (lamp test).
2. The EVC window at the left of the panel displays software version (e.g., 3.4).
3. A System Bus Test is performed. If the word “bUS” flashes in the EVC window, it indicates a
problem with a system bus cable or switching module. To find the faulty cable or module, use this
process of elimination:
• Carefully unplug the yellow-red-blue-black system bus cable from a switch module to
isolate it from the 980 module, then press any key on the control panel.
• If “bUS” still appears on the EVC window, plug the cable back in and try a different
module.
• If “bUS” disappears from the EVC window, you have isolated the module or section of
bus cable that is faulty. Call Audio Authority
®
Technical Service at 800-322-8346 for
assistance with parts replacement.
4. After the bus test, the diagnostic program scans the active range of module addresses in every
Product Group. You will observe these module addresses counting up in the EVC window as the
product group number is displayed in each group’s Product Group window.
• If the numeric displays begin flashing at any time during the module scan, two or more
modules have the same address. Duplicate addresses are disallowed because the control
panel is unable to tell two identically addressed modules apart. Note the last group