Icom IC-M91D Service Manual Addendum

2 - 2
VCO
• RF UNIT
(TOP VIEW)
• RF UNIT
(BOTTOM VIEW)
IF IC
(IC170)
+5 V REGULATOR
(Q363)
2nd IF FILTER
(FI151)
DISCRIMINATOR
(X170)
+3.3 V REGULATOR
(IC2)
1ST IF MIXER
(Q150)
+5 V REGULATOR
(Q224)
+5 V REGULATOR
(Q225)
TX MUTE SW
(Q366)
TX MUTE SW
(Q392)
1st IF FILTER
(FI150)
APC CTRL
(IC150)
VCC LINE CONTROLLER
(Q353)
WET DETECT
(Q390)
BUFFER
(Q3)
PLL IC
(IC1)
POWER AMP
(Q54)
RF AMP
(Q90)
TX POWER DETECTOR
(D91)
PRE-DRIVER AMP
(Q53)
BUFFER
(Q50)

Icom IC-M91D Specifications

General

Brand	Icom
Model	IC-M91D
Category	Transceiver
Language	English