Motorola SSETM 5000 - Manual (Page 6)

iv Table of Contents
November 11, 2004 6881094C12-A
2.4.2 Receiver............................................................................................................................ 2-9
2.4.2.1 Receiver Front-End.................................................................................................. 2-9
2.4.2.2 Receiver Back-End ................................................................................................ 2-10
2.4.3 Transmitter...................................................................................................................... 2-11
2.4.3.1 Power Distribution.................................................................................................. 2-12
2.4.3.2 Driver Amplifier ...................................................................................................... 2-12
2.4.3.3 Power Amplifier Transistor Q107 ........................................................................... 2-12
2.4.3.4 Directional Coupler ................................................................................................ 2-13
2.4.3.5 Antenna Switch ...................................................................................................... 2-13
2.4.3.6 Harmonic Filter....................................................................................................... 2-13
2.4.3.7 RF Detector D101 .................................................................................................. 2-14
2.4.3.8 Power-Control IC (PCIC) U104.............................................................................. 2-14
2.4.4 Frequency Generation Unit (FGU).................................................................................. 2-16
2.4.4.1 Reference Oscillator Y200 ..................................................................................... 2-16
2.4.4.2 Fractional-N Frequency Synthesizer (FracN) IC U202 .......................................... 2-16
2.4.4.3 Loop Filter .............................................................................................................. 2-17
2.4.4.4 VCO Buffer IC (VCOBIC)....................................................................................... 2-17
2.5 VOCON Board ............................................................................................................................. 2-17
2.5.1
Interconnections.............................................................................................................. 2-18
2.5.1.1 Transceiver Board Connector P201....................................................................... 2-18
2.5.1.2 Universal Flex Connector J102.............................................................................. 2-18
2.5.1.3 Internal Speaker and Microphone Flex Connector M102 ...................................... 2-19
2.5.1.4 Control Top Flex Connector J707 .......................................................................... 2-19
2.5.1.5 Encryption Module Connector J701....................................................................... 2-19
2.5.1.6 Display Module Connector J301 ............................................................................ 2-19
2.5.2 Functional Blocks............................................................................................................ 2-19
2.5.2.1 Controller and Memory .......................................................................................... 2-19
2.5.2.2 Audio and Power.................................................................................................... 2-23
2.5.2.3 Interface Support ................................................................................................... 2-26
2.5.3 Display Module ............................................................................................................... 2-31
2.5.4 Controls and Control Top Flex ........................................................................................ 2-31
2.5.5 VOCON Audio Paths ...................................................................................................... 2-32
2.5.5.1 Transmit Audio Path .............................................................................................. 2-32
2.5.5.2 Receive Audio Path ............................................................................................... 2-33
2.5.6 Radio Power-Up/Power-Down Sequence....................................................................... 2-34
Chapter 3 Test Equipment and Service Aids ..................................... 3-1
3.1 Levels of Service............................................................................................................................ 3-1
3.2 Test Equipment.............................................................................................................................. 3-1
3.3 Service Aids ................................................................................................................................... 3-3
3.4 Field Programming......................................................................................................................... 3-6
Chapter 4 Performance Checks .......................................................... 4-1
4.1 Test Equipment Setup ................................................................................................................... 4-1
4.2 Radio Test Mode............................................................................................................................ 4-2
4.2.1
Access the Test Mode ...................................................................................................... 4-2
4.2.2 RF Test Mode ................................................................................................................... 4-4
4.2.3 Control Top Test Mode ..................................................................................................... 4-5
4.3 Receiver Performance Checks ...................................................................................................... 4-6
4.4 Transmitter Performance Checks .................................................................................................. 4-7