
— 14 —
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 79 of IC4?
Check IC4 and its
peripheral circuit.
Check IC2 and TEL network
circuit.
Check R82, R182 and R94.
See 2. The bell does not ring
& page does not ring.
OK
OK
NG
NG
OK
NG
Check RINGER mode setting
is Hi or Low.
Set RINGER volume setting
to Hi or Low.
OK
NG
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 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 While pressing the DELETE button, plug the AC power adaptor into the base. Keep pressing the DELETE
button for more than 5 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.
Deletion of the Caller ID memory
To delete the Caller ID memory in the RAM, proceed with the following process:
1) Connect the battery with pressing
and
#
buttons, and keep pressing the buttons continuously for
approximate 2 seconds.
2) Release buttons when entering TEST mode with beep.
3) Press
CID
button.
4) A confirmation beep will sound, then the data for caller ID is deleted.
(Note: Do not disconnect the battery until you hear the confirmation beep, otherwise the data may not be
completely deleted.)
Содержание FT-8981
Страница 1: ...SERVICE MANUAL PUBLISHED IN JAPAN May 2001 FILE NO 2B0 200104 FT 8981 CORDLESS TELEPHONE ...
Страница 9: ... 8 BLOCK DIAGRAMS Base Unit ...
Страница 10: ... 9 Handset ...
Страница 11: ...SCHEMATIC DIAGRAMS Base Unit 10 11 FT8981 Sche p65 01 05 25 13 21 Page 8 Adobe PageMaker 6 5J Win ...
Страница 12: ...Handset 12 13 FT8981 Sche p65 01 05 25 13 21 Page 9 Adobe PageMaker 6 5J Win ...
Страница 27: ... 28 ELECTRICAL PARTS LOCATION Base Unit Main PCB ...
Страница 28: ... 29 Handset Main PCB ...
Страница 29: ... 30 WIRING DIAGRAMS Base Unit ...
Страница 30: ... 31 Handset ...