CEECO BLW-321-F-IVC-C-M, Service Manual, Page: 6 / 11

Issue 4.00
CEECO
Communication Equipment and Engineering Company
PROPRIETARY
6
5.10 Over-Voltage Protection Wiring Diagram:
6.0 TESTING
6.1 Connect the phone to a phone line or a DTMF phone test set.
6.2 Lift the handset, dial tone is heard.
6.3 Dial a number. (The transmitter is muted while the phone is dialing.)
6.4 Normal phone conversation is allowed. Place the handset on hook.
6.5 Place a call into the phone.
6.6 Normal phone conversation is allowed
.