20
4. Cannot make a phone call (pulse).
Can the base and handset
be connected?
See 3. The base and handset
cannot be connected.
While in TALK MODE, press
dial key of the handset.
C h e c k w h e t h e r s q u a r e
waveform from pin 46 of IC8
is fed.
Check IC8 and its peripheral
circuit.
Check R83, D11, Q11, RL1
and the peripheral circuit.
NG
OK
OK
5. Cannot make a phone call (tone).
Can the base and handset be
connected?
See 3. The base and handset
be cannot be connected.
OK
NG
While in TALK MODE, press
dial key of the handset.
Can tone waveform from Pin
23 of IC2 is fed?
Check IC2 and its peripheral
circuit.
OK
NG
Can tone signal be heard
from the handset speaker?
Check IC3, Q3, Q4 and the
peripheral circuit.
NG
OK
Check the base TEL-line
circuit and RELAY control
circuit.
NG
Содержание FD-9839
Страница 2: ...CORDLESS TELEPHONE SERVICE MANUAL FILE NO 2B0 9911 FD 9839 PUBLISHED IN JAPAN Dec 1999 ...
Страница 9: ...7 BLOCK DIAGRAMS Base Unit Main ...
Страница 10: ...8 Base Unit Key ...
Страница 11: ...9 Handset ...
Страница 12: ...10 11 SCHEMATIC DIAGRAMS Base Unit Main ...
Страница 13: ...12 13 Base Unit Key ...
Страница 14: ...14 15 Handset ...
Страница 33: ...34 ELECTRICAL PARTS LOCATION Base Unit Main PCB ...
Страница 34: ...35 Base Unit Key PCB ...
Страница 35: ...36 Handset Main PCB ...
Страница 36: ...37 38 WIRING DIAGRAMS Base Unit ...
Страница 37: ...39 Handset ...
Страница 40: ...42 Handset 7 8 4 15 1 16 17 18 17 5 10 22 11 21 12 20 2 9 6 19 13 14 3 17 RF MODULE HANDSET MAIN PCB ASSY 23 ...
Страница 64: ......