Hm-127 (Optional Unit) - Icom IC-M502 Service Manual

2-2 HM-127 (OPTIONAL UNIT)

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CPU
(IC1: µPD789405AGK-A30-9EU)
Data buffer circuit
Reset IC
(IC7: S-80928ANMP)
5V regulator
(IC5: TA78L05F)
MIC amplifier
(IC4: NJM2125F)
2 - 2
LCD
(DS1: A0119)
System clock
(X1: CSTCC4.91MG)
Dimmer circuit
8V regulator
(IC6: TA7808F)
Volume IC
(IC3: M62429FP)
AF/MIC switch
(IC9: TC4W53FU)
AF amplifier
(IC2: TA7368F)