Toshiba SX-2809, Service Manual

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13
2. The bell does not ring & page does not ring.
Can the base and handset
be connected? See 3. The base and handset
cannot be connected.
NG
OK
Press handset DIAL key
while in TALK MODE.
Can key touch sound be
heard from the ringer? When the key of the handset
is pressed, can the pulse
output at pin 58 of IC608 be
seen? NG
OK
Check IC608.
NG
At the Q604 collector, can
the pulse wave be seen?
Check R635.
NG
When the PAGE SW of the
base is pressed, does pin 9
of IC10 change from high to
low?
Check S1.
NG
OK
Check IC10.
OK
OK
Check RINGER Y601.