Icom IC-A16 Service Manual page 8

• MAIN UNIT (TOP VIEW)
ANTENNA CONNECTOR
(J1: CHASSIS UNIT)
+3.3 V REGULATOR
(IC16)
AF AMPLIFIER REGULATOR
(Q2)
[PTT] (S500)
AUTOMATIC POWER CONTROL
(IC18)
TXV REGULATOR
(IC510)
MICROPHONE
(MC1)
[SQL▲] (S502)
[SQL▼] (S503)
AUTOMATIC LEVEL CONTROL
(IC6)
RIPPLE FILTER
(Q7)
MICROPHONE MUTE SWITCH
(IC12)
(IC19)
BUFFER AMPLIFIER
(IC1)
J500
BACKLIGHT CONTROLLER
(Q503)
LPF
2-3
[ ] (S504)
+5 V REGULATOR
(IC17)
AF AMPLIFIER REGULATOR
(Q522)
[MIC] (J3)
AF POWER AMPLIFIER
(IC3)
[SP] (J2)
EXTERNAL PTT DETECT
(Q16)
LCD
(DS503)
LCD DRIVER
(IC503)
Below the LCD
AUTOMATIC GAIN CONTROL
(IC14)
D/A CONVERTER
(IC15)
AM DETECTOR
(Q36)
IF AMPLIFIER
(Q35)
AUTOMATIC NOISE LIMITER
SWITCH
(Q22)
VOX DETECTOR
(IC10)
EEPROM
(IC501)
CPU3 REGULATOR
(IC505)
RESET IC
(IC512)