Motorola Astro XTS 2500 Basic Service Manual page 31

Reference
Oscillator
EPIC
Y200
FracN
U201
3
MOD
From TX_SSI
IN
DAC LPF
U203 FL200
ABACUS III U401
3
To RX_SSI
Sample
Clk
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Reference
Oscillator
EPIC
Y200
FracN
U201
3
MOD
From TX_SSI
IN
LPF
DAC
U203 FL200
ABACUS III U401
3
To RX_SSI
Sample
Clk
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SRZHU FRQWURO
TX TX Driver
VCOBIC
Buffer Amplifier
U250
Q216 U101
Loop
VCO
Filter
VCO
PCIC
U102
VCO
Crystal Preselector
Mixer
Filter Filter
U1
FL3 FL2
2ND
LO
TX Driver
TX Amplifier
U101
Buffer
Loop
VCO
RX
Filter
Buffer
VCO
PCIC
U102
Crystal Preselector
Mixer
Filter Filter
U1
FL51
2ND
LO
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Power
Module
Q101
Directional
Coupler
U106
RF Power
Detector
Antenna
D103
Switch
RX LNA Attenuator Preselector
Q1 Filter
FL1
MAEPF-27322-O
Power
Module
Q101
Directional
Coupler
U106
RF Power
Detector
Antenna
D103
Switch
Attenuator
RX LNA Preselector
Q29 Filter
MAEPF-27322-O
To
Antenna
Harmonic
Filter
To
Antenna
Harmonic
Filter