Panasonic KX-TG6451BX - Safety Precautions; Power, Installation, and Operation Safety; Medical and Battery Safety

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KX-TG6451BX/KX-TGA641BX
1.2.2. Power Supply Circuit
The power is supplied to the BBIC,TAM Companion,Power AMP,LCD module,EEPROM,Flash Memory,LED,LCD backlight from
AC Adaptor(+6.5V) as shown in Fig 1.
When power line failure, the power is supplied to BBIC,TAM companion,EEPROM from telephone line instead of AC Adaptor
through D138 and Q341.
• BBIC (IC501)
• TAM Companion (IC201)
AC adaptor → F301 → D301→ IC301 → D353 → IC201 (VDDPA 3.2V)
• RF Power AMP (IC801)
AC adaptor → F301 → D301→ IC304 → Q608 → IC801 (VCC)
• EEPROM (IC561)
• Flash memory (IC541)
AC adaptor → F301 → D301→ IC301 → D311 → IC501 (BAT:CP_VOUT1) → IC541 (VDD 3.0V)
•LCD module
AC adaptor → F301 → D301→ IC301 → D311 → IC501 (BAT:CP_VOUT1) → CN1 → LCD module (VDD 3.0V)
•LED
AC adaptor → F301 → D301→ IC301 → D311 → IC501 (BAT:CP_VOUT1) → CN1 → LED (3.0V)
• LCD backlight
AC adaptor → F301 → D301 → IC301→ CN2 → LCD backlight (3.5V)
<Fig.1>