Icom IP501M Service Manual page 8

• MAIN-A UNIT (BOTTOM VIEW)
3.3 V
REGULATOR
(IC852)
13.8 V DC/DC
CONVERTER CIRCUIT
9 V DC/DC
CONVERTER
(IC801)
3.3 V DC/DC
CONVERTER
(IC802)
3.8 V DC/DC
CONVERTER
(IC821)
REVERSE CONNECT
PROTECT
(D851)
DC/DC ENABLE
CONTROL CIRCUIT
MAIN-A UNIT
8 V REGULATOR
(IC803)
SDRAM
(IC103)
Inside the shielded case.
5 V REGULATOR
(IC831)
2-4
POWER ON ETHERNET REFERENCE CLOCK
CONTROL CIRCUIT (X951)
SIM SELECTOR
CIRCUIT
J254 J253
CODEC
(IC401)
ELECTRONIC
VOLUME
(IC703)
SDRAM
(IC102)
Inside the shielded case.
ETHERNET TRANSCEIVER IC
(IC951)
FLASH ROM
(IC104)
CPU
(IC101)
Inside the shielded case.
ANALOG SWITCH
(IC752)