Motorola HT Series Service Manual page 61

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Rx-SW
Tx-SW
(U201 Pin 28)
VSF
Steer Line
Voltage
(VCTRL)
RX RX VCO
Tank
TX
Tank
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Pin 20
Pin 7
Pin 13
Vcc-Superfilter
Pin 3
Collector/RF in
Pin 4
Pin 5 RX
Pin 6
Circuit
Pin 16 TX
TX VCO
Pin 15
Circuit
Vsens
Circuit
Pin 18
Vcc-Logic
VSF
(U201 Pin 28)
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Table 2-9
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$8; 
/RZ
+LJK
/RZ
Level Shifter
TRB_IN
Pin 19
TX/RX/BS
Switching Network
U250
VCOBIC
Rx Active
Bias
Tx Active
Bias
Pin 2 Pin 1 Pins 9,11,17
Rx-I adjust Tx-I adjust

$8; 
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/RZ /RZ
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5V
AUX3 (U201 Pin 2)
Network
AUX4 (U201 Pin 3)
Pin 12 Prescaler Out
Presc
LO RF INJECTION
Pin 8
Injection
RX
Amplifier
VSF
Pin 14
VCC Buffers
Pin 10
TX
TX RF Injection
Amplifier
75%

U201 Pin 32
(U201 Pin 28)
Buffer