Power Supply Circuit - Panasonic KX-TCD510ALV Service Manual

- ADC, DAC, timer, and power control circuitry
- All interfaces (ex: RF module, EEPROM, LED, Analog Front End,
etc.)
- RF Module: IC4
- PLL Oscillator
- Detector
- Compress/Expander
- First/Second Mixer
- Amplifier for transmission and reception
- FLASH MEMORY IC7
- Program D/L (DownLoad) Area
- EEPROM: IC3
- Temporary operating parameters (for RF, etc.)
Refer to EEPROM LAYOUT (BASE UNIT)
- Additionally,
- Power Supply Circuit (+4.0V, +3V, +1.8V output)
- Crystal Circuit (10.368MHz)
- Charge Circuit
- Telephone Line Interface Circuit
- FLASH MEMORY IC6
- VOICE Prompt (TAM) D/L Area

21.2. Power Supply Circuit

The power is supplied to the DECT BBIC, RF Module, EEPROM, Relay Coil, LED and Charge
Contact from AC Adaptor (+6V) as shown in Fig.101. The power supply is as follows;
- DECT BBIC (IC2): CN2(+6V)
- RF Module (IC4): CN2(+6V)
- EEPROM (IC3): CN2(+6V)
- Flash Memory (IC7): CN2(+6V)
- Charge Contact (TP11): CN2(+6V)
- Flash Memory (IC6): CN2(+6V)
().
D1 IC1
D1 IC1 IC4
D1 IC1 Q2
D1 IC1
D1 R4, R5
D1 IC1
<Fig.101>
69
Q2 IC2
IC3
Q2 IC7
TP11
Q2 IC6