Motorola GP338 Plus - Page 16

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Troubleshooting Flow Chart for Controller ......................................................... 5B-29
Troubleshooting Flow Chart for Receiver (Sheet 1 of 2).................................... 5B-30
Troubleshooting Flow Chart for Receiver (Sheet 2 of 2).................................... 5B-31
Troubleshooting Flow Chart for Transmitter ...................................................... 5B-32
Troubleshooting Flow Chart for Synthesizer...................................................... 5B-33
Troubleshooting Flow Chart for VCO................................................................. 5B-34
Section 5C Model Chart and Test Specifications (450-527 Mhz)
1.0 Model Chart....................................................................................................... 5C-1
2.0 Specifications (for GP328 Plus) ........................................................................5C-2
3.0 Specifications (for GP338 Plus/GP338 XLS) .................................................... 5C-3
4.0 Transmitter ........................................................................................................5C-4
4.1 General ........................................................................................................5C-4
5.0 Receiver ............................................................................................................ 5C-6
5.1 Receiver Front-End......................................................................................5C-6
5.2 Receiver Back-End ...................................................................................... 5C-7
5.3 Automatic Gain Control Circuit .................................................................... 5C-8
6.0 Frequency Generation Circuitry ........................................................................ 5C-9
6.1 Synthesizer ................................................................................................5C-10
6.2 VCO - Voltage Controlled Oscillator ..........................................................5C-11
7.0 Notes For All Schematics and Circuit Boards .................................................5C-13
8.0 Circuit Board/Schematic Diagrams and Parts List .......................................... 5C-15
UHF Band 2 (450-527MHz) Main Board Top Side
PCB No. 8404102G03/G04/G05 ...............................................................5C-15
UHF Band 2 (450-527MHz) Main Board Bottom Side
PCB No. 8404102G03/G04/G05 ...............................................................5C-16
UHF Band 2 (450-527MHz) Main Board Top Side PCB No. 8404102G07........ 5C-17
UHF Band 2 (450-527MHz) Main Board Bottom Side PCB No. 8404102G07 .. 5C-18
UHF Band 2 Controls And Switches Schematic Diagram (sheet 1 of 2)
UHF Band 2 Controls And Switches Schematic Diagram (sheet 2 of 2) ... 5C-19
UHF Band 2 Controls And Switches Schematic Diagram
(sheet 2 of 2 for 8404102G07 PCB) ..........................................................5C-21
UHF Band 2 Receiver Front End Schematic Diagram.......................................5C-22
UHF Band 2 Receiver Back End Schematic Diagram ....................................... 5C-23
UHF Band 2 Synthesizer Schematic Diagram ...................................................5C-24
UHF Band 2 Voltage Controlled Oscillator Schematic Diagram ........................5C-25
UHF Band 2 Transmitter Schematic Diagram.................................................... 5C-26
UHF Band 2 Radio Parts List (RF Board) ..........................................................5C-27
9.0 Troubleshooting charts....................................................................................5C-31
Troubleshooting Flow Chart for Controller ......................................................... 5C-31
Troubleshooting Flow Chart for Receiver (Sheet 1 of 2).................................... 5C-32
Troubleshooting Flow Chart for Receiver (Sheet 2 of 2).................................... 5C-33
Troubleshooting Flow Chart for Transmitter ...................................................... 5C-34
Troubleshooting Flow Chart for Synthesizer......................................................5C-35