Inside Views - Icom IC-M91D Service Manual Addendum

SECTION 2.
• MAIN UNIT
CPU
(IC360)
EEPROM
(IC340)
BACKLIT LED DRIVER
(Q382)
BACKLIT LED DRIVER
(Q240)
+3.3 V REGULATOR
(IC220)
TX MUTE SW
(IC366)
AF LPF
(IC363)
DSC DECODER
(IC365)
D/A CONVERTER
(IC190)
AF LPF
(IC200)
AF SW
(IC380)
AF MUTE SW
(IC260)
PTT CONTROL
(Q251)
MIC CONTROL
(Q250)

INSIDE VIEWS

NOISE CANCEL IC
(IC382)
2 - 1
DATA LINE
LEVEL CONVERTER
(IC372)
RESET IC
(IC341)
AF MUTE SW
(Q400)
SPEAKER SW
(Q371)
AF POWER AMP
(IC362)
AF AMP POWER LINE
CONTROLLER
(Q230)
+5 V REGULATOR
(IC384)
DC-DC CONVERTER
(IC383)