Power Supply Circuit - Panasonic KX-TCD540NZM Service Manual

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FLASH MEMORY: IC6
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Voice Prompt (TAM) D/L (DownLoad) Area
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FLASH MEMORY: IC7
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Program D/L (DownLoad) Area
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EEPROM: IC3
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Temporary operating parameters (for RF, etc.)
Refer to EEPROM LAYOUT (BASE UNIT)
).
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Additionally,
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Power Supply Circuit (+4.0V, +4.0V, +3.2V, +1.8V output)
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Crystal Circuit (10.368MHz)
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Telephone Line Interface Circuit
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SP Phone Circuit
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Curl Cord Handset Interface Circuit

21.2. Power Supply Circuit

The power is supplied to the DECT BBIC, RF Module, EEPROM, SP AMP, LED from
AC Adaptor (+6V) as shown in Fig.101. The power supply is as follows;
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DECT BBIC (IC2): CN2(+6V)
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RF Module (RFM1): CN2(+6V)
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EEPROM (IC3): CN2(+6V)
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Flash Memory (IC7): CN2(+6V)
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SP AMP (IC10): CN2(+6V)
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Logic IC (IC12, IC13): CN2(+6V)
(
L8 D1 IC1
L8 D1 IC1
L8 D1 IC1
L8 D1 IC1
L8 D1 IC14
L8 D1
114
Q2 IC2
RF Module
Q2 IC3
Q2 IC7
IC10
IC1 Q2 IC12, IC13