Toshiba FT-8259, Руководство по обслуживанию

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6. Voice cannot be transmitted to other party (outgoing call).
Can the base and handset be
connected? See 3. The base and handset
cannot be connected.
OK
NG
T h e 1 k H z , 1 1 m V s i n e
wave fo r m i s a p p l i e d t o
MC601 + side, can the 1 kHz
sine waveform from pin 24 of
IC607 be fed? Check Q608 and its
peripheral circuit. NG
Check whether there is the
1 kHz sine wavefor m at
pin 20 of IC607. Check IC607 and its
peripheral circuit. NG
OK
OK
Check whether there is the
1 kHz sine wavefor m at
MOD terminal. Check RT403 and its
peripheral circuit. NG
OK
TX output signal from the
handset is detected by the
liner detector, can the 1 kHz
sine waveform be fed?
Check handset RF unit.
NG
OK
Check whether there is the
1 kHz sine waveform at pin 9
of IC181 on the base unit. Check IC181, Q181 and
their peripheral circuit. NG
OK
Check whether there is the
1 kHz sine waveform at pin 3
of IC4. Check RT1, Q3 and their
peripheral circuits. NG
OK
Check whether there is the
1 kHz sine wavefor m at
pin 6 of IC4. Check IC4 and its
peripheral circuit. NG
OK
Check whether there is the
1 kHz sine waveform at the
Q2 (Line1) or Q10 (Line2)
collector. Check IC2, IC3, Q2 (Line1)
or IC6, IC9, Q10 (Line2) and
its peripheral circuit. NG
OK
Check whether the 1 kHz sine
wavefor m from TEL-line
output is fed. Check T1, RL1 (Line1) or T2,
R L 2 ( L i n e 2 ) a n d t h e i r
peripheral circuits. NG
OK
Check MC601 of handset.
Check base RF unit.
NG
OK