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4.2.2.
Power Supply Circuit
The power is supplied to the DECT BBIC, RF Module, EEPROM and Charge Contact from AC Adaptor (+6.5 V) as shown in
Fig.101. The power supply is as follows;
Fig.101. The power supply is as follows;
• DECT BBIC (IC7):
CN2 (+6.5 V)
→ IC1 → Q9 → IC7
CN2 (+6.5 V)
→ IC1 → Q8 → IC7
• RF Module (IC10):
CN2 (+6.5 V)
→ IC1 → Q8 → IC10 (Radio Transceiver) (Digital)
CN2 (+6.5 V)
→ IC1 → Q9 → IC10 (Radio Transceiver) (Analog)
CN2 (+6.5 V)
→ IC1 → R125 → IC10 (Power AMP)
• EEPROM (IC5):
CN2 (+6.5 V)
→ IC1 → Q9 → IC5
• Charge Contact (TP16):
CN2 (+6.5 V)
→ R57 → R56 → R55 → D22 → TP16
<Fig.101>
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