Power Supply Circuit - Panasonic KX-TG1283JXS Service Manual

KX-TG1283JXS / KX-TG1283JXT / KX-TCA122CXS / KX-TCA122CXT / KX-TCA121CXS / KX-TCA121CXT

15.2. Power Supply Circuit

The power is supplied to the DECT BBIC, RF Module, EEPROM and Charge Contact from AC Adaptor (+6V) as shown in
Fig.101. The power supply is as follows;
• • • • DECT BBIC (IC4):
CN1 (+6V) → D1 → IC1 → Q2 → IC4 (3.0V)
CN1 (+6V) → D1 → IC1 → Q3 → IC4 (1.8V)
• • • • RF Module (IC2):
CN1 (+6V) → D1 → IC11 → IC2 (2.5V)
• • • • EEPROM (IC3):
CN1 (+6V) → D1 → IC1 → Q2 → IC3 (3.0V)
• • • • FLASH MEMORY (IC8):
CN1 (+6V) → D1 → IC1 → Q2 → IC8 (3.0V)
• • • • SP AMP (IC7):
CN1 (+6V) → D1 → IC1 → IC7 (4.0V)
• • • • TAM FLASH MEMORY (IC6):
CN1 (+6V) → D1 → IC1 → Q2 → IC6 (3.0V)
• • • • LOGIC IC (IC9, IC10):
CN1 (+6V) → D1 → IC1 → Q2 → IC9, IC10 (3.0V)
• • • • Charge Contact (TP15):
CN1 (+6V) → D1 → R2, R4 → TP15
<Fig.101>
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