GAI-Tronics 12562-110 SMART Handset Telephone PCBA Replacement Kit - Manual (Page 9)

Pub. 42003-248C
M ODEL 12562-110 SMART H ANDSET T ELEPHONE PCBA R EPLACEMENT K IT Page 9 of 10
f:\standard ioms - current release\42003 kit manuals\42003-248c.doc
02/13
Models 276-005 and 277-005
Removing the Old PCBA
1. Use the Model 233-001 Security Screwdriver to remove the six front panel screws and remove the
panel from its back box after disconnecting the telephone line.
2. Disconnect the handset, hookswitch, push button, keypad (Model 276-005 only), and ringer cable(s)
from the PCBA. Record the location of each connection for later reconnection.
3. Disconnect the red and green wires and ground wire (if present) from the telephone line connection
on the PCBA. Save the modular cord.
4. Depress the locking tab on each nylon standoff while lifting up on that corner of the PCBA to remove
it.
Installing the New PCBA
1. Align the holes of the new PCBA with the snap-on nylon standoffs in the telephone, maintaining
proper orientation. See Figure 4.
2. Press firmly on each corner of the PCBA to lock in the standoffs.
3. Reconnect the red (ring) and green (tip) telephone wires to the PCBA.
4. If not previously installed, attach the ring lug of the (longer) ground cable provided to the ground stud
on the front panel and the spade lug to terminal block TB1. See Figure 4.
If the ground wire was present, reconnect to TB1.
5. Reconnect the handset, hookswitch, push button, keypad (Model 276-005 only), and ringer cable(s) to
the PCBA.
6. Use the Model 233-001 Security Screwdriver to install the six front panel screws.