GAI-Tronics 12562-105 Auxiliary Powered Emergency Telephone PCBA Replacement Kit - Manual (Page 3)

Pub. 42003-212A
M ODEL 12562-105 E MERGENCY T ELEPHONE PCBA R EPLACEMENT K IT Page: 3 of 4
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Models 297-101 and 298-101
Removing the Old PCBA
CAUTION
Disconnect the phone line.
1. Use the Model 233-001 Tamper-Resistant Screwdriver to loosen the six front panel screws.
2. Disconnect the microphone, speaker, switches, LED indicator, and keypad cables
(Model 298-101 only) from the PCBA. Record the location of each connection for later reconnection.
3. Disconnect the red and green wires from the telephone line connection on the PCBA. Save the modular
cord.
4. Unscrew the four screws securing the PCBA. Save the screws, and discard the PCBA.
Figure 2. Models 297-101 and 298-101 - Printed Circuit Board Detail