Detex DTX-4300 - Manual (Page 99)

Programmed Codes Stop Working;
Keypad Buttons Not Working
1. Meter and verify correct keypad voltage. 2. Verify keypad power
selection jumper is selecting the same voltage provided by the
power supply. 3. Reference keypad instructions. 4. Verify that kick
back protection installed to specifications listed in Table 1-1.
Device used to prevent electric kick
back conflicts with existing device built
into lock. Remove and test.
Confirm that each keypad button is not damaged by
using the Keypress Feedback feature. (A damaged
button will cause a digit to be read more than once
or not at all, resulting in denied access.)
YES
1. Resolve issue. 2. Erase keypad memory to
erase any program glitch. 3. Enter default
code, 1234* .
NO
1. Erase entire keypad memory to erase any
program glitch. 2. Enter default code, 1234* .
Verify that the asterisk button (*) is being
used like the <Enter> key. (This may be
turned ON/OFF in programming.)
PASS
Troubleshoot per instructions
in Chapter 5 in this manual).
1. Reprogram keypad
and re-test. 2. See "Note"
at bottom of page.
Bad
keypad
NOTE: A glitch in the keypad program might result from using a power
supply that is not filtered and regulated properly. For extra filtering
suggestions, call IEI technical support.
PASS
Perform power
integrity test
(section 5.3).
1. Reprogram keypad
and re-test. 2. See "Note"
at bottom of page.
PASS
FAIL
FAIL
FAIL
If using mullion style keypad, verify
that mounting hardware & cables are
installed per specifications (Table
1-1). Xtremepad, check cable
specifications.
PASS
1. Set meter to read continuity. 2.
Remove power from common terminal
of keypad. 3. Enter 1234* to verify that
relay activates.
PASS
FAIL
5.2 Flow Charts Chapter 5: Troubleshooting
prox.pad plus Install/Program. Manual, PPP, D4b 5-5
Part No. 6105679, Rev. 1.1