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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;
• DECT BBIC (IC7):
DC Jack (+6.5 V) → IC2 → IC7
DC Jack (+6.5 V) → IC2 → Q9 → IC7
DC Jack (+6.5 V) → IC2 → Q8 → IC7
• RF Power Amp. (IC801):
DC Jack (+6.5 V) → IC2 → IC801 (Power AMP)
• EEPROM (IC401):
DC Jack (+6.5 V) → IC2 → IC7→ IC401
• Charge Contact (TP16):
DC Jack (+6.5 V) → R56 → R55 → D22→ TP16
<Fig.101>
9
KX-TG2511AL/KX-TG2512AL/KX-TG2513AL/KX-TGA250AZ
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Troubleshooting
