GAI-Tronics 12512-001 Ind. Tel. Hookswitch Assembly Kit - Manual (Page 6)

Pub. 42003-023E
M ODEL 12512-001 H OOKSWITCH A SSEMBLY R EPLACEMENT K IT Page 6 of 8
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Models 24x-003, 24x-005, 25x-003, 25x-005, 246-700
& 256-700
Removing Old Assembly
1. Remove the front cover screws and pull the front cover away from the back box/enclosure. Retain
the screws.
2. For Models 24x-003 and 24x-005: Disconnect the red (Ring) and green (Tip) wires from TB1. See
Figure 5 and Figure 6.
3. For Models 246-700 and 256-700: Disconnect power plug (P11).
4. Cut the cable tie used to bundle the wires together.
5. Remove the three screws securing the PCBA mounting bracket to the panel. Retain the screws for
reassembly.
6. Remove the remaining screw that secures the handset cradle to the front cover. See Figure 4.
7. Pull the handset cradle with the reed switch attached away from the front panel.
8. Remove the handset cradle gasket from the front panel (if necessary).
Install New Assembly
9. Thread the leads of the reed switch through the center top hole. See Figure 4.
10. Secure the plastic cradle on the front cover using the #8 thread cutting screw. See Figure 4.
11. Secure the PCBA mounting bracket using the three screws removed in step 5 above. Note the upper
right screw is a #8 thread cutting screw and also secures the handset cradle.
12. Plug spades on the blue and white wires into appropriate E-clips on the PCBA. For models with the
suffixes -005 and -700, see Figure 6 and Figure 7.
For models with the suffix -003, clip off spade lugs and strip the wire ¼ inch and install the leads into
TB7. See Figure 5.
13. Bundle wires as before with the cable tie included in the kit.
14. For Models 24x-003 and 24x-005, reconnect the red (Ring) and green (Tip) wires to TB1. For
Models 246-700 and 256-700, reconnect the power cord to P11 on the PCBA.
15. Replace the front cover and secure using screws retained from step 1.
16. Test the on-hook/off-hook function to ensure installation has been successful.