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9
KX-TG8621RUM/KX-TGA860RUM
4.2.2.
Power Supply Circuit
The power is supplied to the DECT BBIC, QSPI FLASH MEMORY and EEPROM from AC Adaptor (+5.5 V) as shown in
Fig.101. The power supply is as follows;
Fig.101. The power supply is as follows;
• DECT BBIC (IC7):
DC Jack (+5.5 V)
→ IC2 → IC7
DC Jack (+5.5 V)
→ IC2 → Q9 → IC7
DC Jack (+5.5 V)
→ IC2 → Q8 → IC7
• EEPROM (IC401):
DC Jack (+5.5 V)
→ IC2 → IC7→ IC401
• FLASH MEMORY (IC421):
DC Jack (+5.5 V)
→ IC2→ IC7→ IC421
• QSPI FLASH MEMORY (IC431):
DC Jack (+5.5 V)
→ IC2 → IC7 → IC431
<Fig.101>
AC Adaptor
DCP
IC2
Q9
IC7
IC421
IC401
IC431
5.5 V
1.8 V
3.0 V
3.0 V
Q8
2.4 V
DC
Jack
2.85 V
DCM
1
2
3
On
DC
S
1.8 V
Reset
(IC7_77pin)
Off
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