Membrane Replacement - Tecnosicurezza TechMaster Troubleshooting Manual

Membrane Replacement

With Tecnosicurezza products it is possible to simply replace the membrane only and not the
entire keypad.
•
Starting at one of the corners, take a sharp knife/razor blade, lift up the membrane and peel it
off. Be certain you are getting to the very bottom of the membrane so you can get under the
adhesive and it can be fully lifted.
o If keypad is mounted via the 3:00/9:00 keypad mounting screws, unscrew (2 screws) the
entry unit from the safe. Remove the black plastic backplate (4 screws) of the LCD
keypad to expose the back the keypad.
o If keypad has been mounted to the safe via shoulder screws simply lift the keypad off of
the shoulder screws so that you have access to the back of the keypad. Remove the
black plastic backplate (4 screws) of the LCD keypad to expose the back the keypad.
•
Disconnect the 8-pin ribbon cable from the connector and remove the membrane. Clean the
membrane cavity of the keypad housing to remove any adhesive left in the cavity. Route the
connector of the new membrane through the hole and push it carefully onto the 8-pin
connector.
•
Reattach the backplate to the keypad and mount the keypad (shoulder screws or directly
mounted to the safe). Peel off the protective cover from the bottom of the membrane and
place the membrane center onto the membrane cavity.
•
Do a Function 5 membrane test prior to closing safe door.
**If all keys seem to be defective, check power supply**
LCD of Keypad shows "Open" but safe handle does not turn
Possible issues:
1. Pressure on door
o Typically caused by a large object inside of the safe that is pushing against the inside of
the door. You can typically hear the lock click and after 3 seconds clicks again.
o Solution: Push firmly against the door, enter code and open
2. Boltwork/lock bolt pressure
o This is typically caused by small item being dropped into and is blocking either the
boltwork or the lock's bolt from being retracted. Although the lock itself is lock, it was
never able to fully extend into the locking position. In this case, technician cannot hear
the click of the lock.
o Solution: Turn handle firmly counterclockwise (closing position), enter code and open
the door. Clear away any interferences from the boltwork and/or lock bolt.