Chamberlain SENTEX INFINITY Installation Instructions Manual page 18

When connections have been completed, test the system's
functionality and adjust the unit, starting with the side tone (see
page 16). The test sequence depends on the series system and
options used. Before testing the unit, be sure to read the
accompanying manuals.
To perform functional testing, program the unit with some test
codes, cards, telephone numbers, etc., then use these entries to
test all relays, card readers and auxiliary keypads. The various
function tests are described below:
LCD DISPLAY/FAN
LCD DISPLAY
Observe the viewing angle and contrast, and adjust if necessary
using the "CONTRAST ADJUSTMENT" pot on the main processor
board (see page 6 or 7). The letters are darkest when properly
adjusted. Be sure to adjust the pot in both directions to find the
maximum contrast.
1. Adjust the contrast for someone 5' 6" tall, standing 2' away
from the system. For drive-up applications, assume that person
is sitting in a mid-sized car.
2. Adjust the viewing angle so the display is visible 8 to 10" higher
and lower.
3. Adjust display so the background is yellow (white on older
models) and the lettering is blue.
INTERNAL FANS
Fans prevent display "blotching" and uneven coloration for
installations in direct sunlight and very high temperatures (this
harmless, temporary phenomenon disappears when the
temperature drops). The fans are mounted inside the enclosure on
both sides of the display. Ensure the fans operate properly before
completing your installation:
1. Ensure that fans are plugged into the two pin headers marked
"FAN A" (J16) and "FAN B" (J17) at the top of the board (with
the red wire on the + terminal).
2. Ensure the thermistor mounted to the bracket below the display
is plugged into the two pin header at the bottom of the board
marked "TEMP SENSE" (J9).
3. Ensure there is nothing obstructing the air passage through the
bracket assembly surrounding the display.
NOTE: Fans only operate above 75-85° F, and so may not operate
even when plugged in.
T E S T I N G
TELEPHONE ENTRY
Test the telephone entry function as follows:
1. When the system dials, the "OFF HOOK" indicator LED on the
telephone interface board (Figure 6 or 7) should illuminate and
the person dialed should receive the call.
2. Voice communications should be distinct and easily heard.
3. If the called party dials a "9" (either rotary or tone phones), the
main relay should activate for the programmed amount of time.
4. Dialing a "5" (tone telephones only) should activate the second
relay if it is programmed as a control relay.
5. If the person called has a rotary dial telephone, the "CLICK
SENSE" indicator should light on each click heard.
Before making any adjustments, the model of the telephone
interface board must be determined (model 1100329 or
1100429). Look for the number located on the upper left-hand
edge of the telephone interface board, preceded by the letters
"ASSY." Refer to the circuit boards on page 17 for adjustments.
NOTE: Installation where fiber optic phone lines are present may
require additional modifications from your telephone provider.
Contact your provider for more information.
CARD ENTRY
1. Program the unit with some test cards and facility codes as
described in the accompanying manuals.
2. Test the card entry feature with a valid card number and facility
code. If the card is accepted, the LEDs on the front of the
reader should change appearance, and the relay should
activate. Card readers have different LED patterns, so the
change depends on the type of reader.
3. System software can be used to test card readers.
Area 23, selection 3 will indicate if a specific card has been
programmed in, but not if it is valid. If the relay does not
activate when the card is used, check to make sure the card's
facility code matches the system (see programming
instructions).
Area 23, selection 4 can also be used to determine if the card
was read properly, but was denied access for another reason,
i.e., the card is not valid (30-bit only).
CODE ENTRY
1. Program the unit with some test codes as described in the
accompanying manuals.
2. Test the code entry feature with a valid code. The relay for that
keypad should activate when the code is entered.
3. System software can be used to test code entry.
Area 23, selection 4 (see programming instructions) can be
used to determine if the code was received properly, but was
denied access for some other reason (for example, the code is
out of its time zone).
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