919055 Replacing control unit for telephone

WM 919055 Replacing control unit for telephone

Preliminary work

1. Remove PCM display and operator control unit. -> 911019 Removing and installing PCM display and operator control unit - section on "Removing" 911019 Removing and installing PCM display and operator control unit

Removing control unit for telephone

1. Carefully open the cover on the PCM using a screwdriver.





Opening cover

2. Unscrew the two fastening screws -1- for the control unit and remove the control unit.





Unscrewing fastening screws

Installing control unit for telephone

1. Fit the control unit and screw in the two fastening screws -1-.





Screwing in fastening screws

2. Press the cover closed until it engages securely.

Subsequent work

1. Install PCM display and operator control unit. -> 911019 Removing and installing PCM display and operator control unit - section on "Installing" 911019 Removing and installing PCM display and operator control unit