telephone company requirements.
13.16. Intercom Mode
1. When the base unit LOCATOR/INTERCOM button is pressed, a call
monitor signal (intercom sound) is output from pins 32 and 33 of
IC501. Thus a monitor tone is heard from the speaker.
2. “Paging” is displayed on LCD. This status is called “Intercom
stand-by”.
3. The receiving signal flows:
RF pin 32 and 33 of IC501 SP
4. The transmission signal flows:
MIC C474 C475 C476 R476 pin 47 of IC501 RF
13.17. Initializing Circuit
Function:
This circuit is used for to initialize the microcomputer when it incorporates an AC adaptor.
Circuit Operation:
When the AC Adaptor is inserted into the unit, then the voltage is shifted by IC301, D509 and
power is supplied to the DSP.
The set can operate beyond point A in the circuit voltage diagram.
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