Icom IC-7851 Servise Manual page 12

DC AMP
(IC601)
TX/RX CONTROLLER
(Q2)
TX/RX CONTROLLER
(Q1)
+8 V REGULATOR
(IC2)
DRIVE AMP
(Q301)
THERMISTOR
(R3)
POWER AMP
CURRENT DETECTOR
(IC502)
PWR AMP
(Q402)
DRIVER AMP
CURRENT DETECTOR
(IC501)
• PA200W UNIT
2-7
YGR AMP
(Q101)
PRE-DRIVE AMP
(Q201)
PWR AMP
(Q401)