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TROUBLESHOOTING HINTS
1. The bell does not ring.
When the PAGE SW of the
base is pressed, does the
ringer on the handset ring?
When the TEL SG is joined
with the base to make bell
signal, is there pulse wave at
pin 4 of IC2?
Is there pulse wave at
pin 21 of IC11?
Check IC11 and its
peripheral circuit.
Check IC2 and TEL network
circuit.
Check R78,R82 and R94.
See 2. The bell does not ring
& page does not ring.
OK
OK
NG
NG
OK
NG
If you want to reset the unit to the factroy settings
You can cancel the OGM, PIN, and the clock settings by the following process.
1 Disconnect the AC adaptor and telephone line cord from the base. Keep the AC adaptor connected to the wall
outlet. Make sure that the telephone line cord remains disconnected during this procedure.
2 Set the TONE/PULSE switch to TONE mode. 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 “ P” 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, “ P” may flash.
Check RINGER ON/OFF SW
on Base to ON position.
Set RINGER ON/OFF SW on
Base ON Position.
OK
NG