Table of Contents
Advertisement
1. The bell does not ring.
When the PAGE key of the
base is pressed, does the
ringer on the handset ring?
OK
When the TEL SG is joined
with the base to make bell
signal, is there pulse wave
at Pin 4 of IC7?
OK
Is there pulse wave at
Pin 21 of IC22?
OK
Check IC22 and its
peripheral circuit.
If you want to reset the unit to the factory settings
You can cancel the OGM, PIN, and the clock settings by the following process.
1 Disconnect the AC adapter and telephone line cord from the base. Also remove the battery pack from the base
unit. Keep the AC adaptor connected to the wall outlet. Make sure that the telephone line cord remains
disconnected during this procedure.
2 While pressing the DELETE button, plug the AC power adaptor into the base. Keep pressing the DELETE
button for more than 4 seconds.
A beep sounds and "88" blinks in the LED display.
To resume using the unit, connect the telephone line cord and place the handset on the base.
Note:
If you turn on the unit again, "88" may flash.
TROUBLESHOOTING HINTS
See 2. The bell does not
NG
ring & page does not ring.
Check IC7 and TEL network
NG
circuit.
NG
Check R61, R82, R83 and
C53.
— 26 —
Advertisement
Table of Contents
