Motorola ASTRO XTL 1500 Detailed Service Manual page 16

List of Figures xv
Figure 5-36. RX Back-End-Poor SINAD or No Audio (700-800 MHz)-Part 1 of 3..............................5-47
Figure 5-37. RX Back-End-Poor SINAD or No Audio (700-800 MHz)-Part 2 of 3..............................5-48
Figure 5-38. RX Back-End-Poor SINAD or No Audio (700-800 MHz)-Part 3 of 3..............................5-49
Figure 5-39. Low or No RX Injection Signal (700-800 MHz) ...................................................................5-50
Figure 5-40. Low or No TX Injection Signal (700-800 MHz) ...................................................................5-51
Figure 5-41. No TX Audio (700-800 MHz) ..............................................................................................5-52
Figure 5-42. TX or RX VCO Unlock (Fail 001) (700-800 MHz)-Part 1 of 2...........................................5-53
Figure 5-43. TX or RX VCO Unlock (Fail 001) (700-800 MHz)-Part 2 of 2...........................................5-54
Figure 5-44. RF Power Amplifier (RFPA)-No or Low TX Power Output (700-800 MHz)-Part 1 of 5 ..5-55
Figure 5-45. RF Power Amplifier (RFPA)-No or Low TX Power Output (700-800 MHz)-Part 2 of 5 ..5-56
Figure 5-46. RF Power Amplifier (RFPA)-No or Low TX Power Output (700-800 MHz)-Part 3 of 5 ..5-57
Figure 5-47. RFPA Power Control-No K9.1V (700-800 MHz)...............................................................5-60
Figure 5-48. RFPA Power Control-No VGBIAS (700-800 MHz) ...........................................................5-61
Figure 5-49. RFPA Power Control-No or Low TX RFPA_CNTRL (700-800 MHz)-Part 1 of 2 ...........5-62
Figure 7-1. Control Head Board Overall Block Diagram ..........................................................................7-3
Figure 7-2. Control Head Controller (OMAP Processor) Sheet 1 of 2 .....................................................7-4
Figure 7-3. Control Head Controller (OMAP Processor) Sheet 2 of 2 .....................................................7-5
Figure 7-4. Control Head Controller (SDRAM and Flash Memory)..........................................................7-6
Figure 7-5. TPS65012 Power Management IC, Factory Programming ...................................................7-7
Figure 7-6. Voltage Regulators ................................................................................................................7-8
Figure 7-7. AVR Power Management Control .........................................................................................7-9
Figure 7-8. GCAI Accessory Interface (Sheet 1 of 2) ............................................................................7-10
Figure 7-9. GCAI Accessory Interface (Sheet 2 of 2) ............................................................................7-11
Figure 7-10. GCAI Connector Schematic ................................................................................................7-12
Figure 7-11. User Interface (Sheet 1 of 2) ...............................................................................................7-13
Figure 7-12. User Interface (Sheet 2 of 2) ...............................................................................................7-14
Figure 7-13. Rear Connector ...................................................................................................................7-15
Figure 7-14. Control Head Main Board Layout-Side 1 Top ...................................................................7-16
Figure 7-15. Control Head Main Board Layout-Side 2 Bottom ..............................................................7-17
Figure 7-16. GCAI Connector Board Layout-Side 1 Top.......................................................................7-23
Figure 7-17. GCAI Connector Board Layout-Side 2 Bottom..................................................................7-24
Figure 7-18. HUD4022A Main Board Overall Block Diagram and Interconnections................................7-26
Figure 7-19. HUD4022A Controller Block Diagram and Interconnections (Sheet 1 of 2) ........................7-27
Figure 7-20. HUD4022A Controller Block Diagram and Interconnections (Sheet 2 of 2) ........................7-28
Figure 7-21. HUD4022A Controller Urchin IC, MUX, and AD5320 DAC Schematic ...............................7-29
Figure 7-22. HUD4022A Controller Audio Schematic..............................................................................7-30
Figure 7-23. HUD4022A Controller Power Control (Sheet 1 of 2) ..........................................................7-31
Figure 7-24. HUD4022A Controller Power Control (Sheet 2 of 2) ..........................................................7-32
Figure 7-25. HUD4022A Frequency Generation Unit Overall Schematic (Sheet 1 of 2) .........................7-33
Figure 7-26. HUD4022A Frequency Generation Unit Overall Schematic (Sheet 2 of 2) .........................7-34
Figure 7-27. HUD4022A VHF Transmitter VCO Schematic ....................................................................7-35
Figure 7-28. HUD4022A Frequency Generation Unit VHF Receive Injection Schematic........................7-36
Figure 7-29. HUD4022A Frequency Generation Unit VHF Transmit Injection Schematic.......................7-37
Figure 7-30. HUD4022A Receiver Back-End Schematic.........................................................................7-38
Figure 7-31. HUD4022A Receiver Front-End Schematic (Sheet 1 of 2)..................................................7-39
Figure 7-32. HUD4022A Receiver Front-End Schematic (Sheet 2 of 2)..................................................7-40
Figure 7-33. HUD4022A Receiver IF Schematic .....................................................................................7-41
Figure 7-34. HUD4022A RF Power Amplifier (RF PA) Schematic (Sheet 1 of 2)....................................7-42
Figure 7-35. HUD4022A RF Power Amplifier (RF PA) Schematic (Sheet 2 of 2)....................................7-43
Figure 7-36. HUD4022A Secure Block Diagram and Interconnections ..................................................7-44
Figure 7-37. HUD4022A Accessory Connector Schematic .....................................................................7-45
Figure 7-38. HUD4022A Power Supply Schematic .................................................................................7-46
Figure 7-39. HUD4022A USB/RS232/SB9600 Schematic ......................................................................7-47
Figure 7-40. HUD4022A SB9600 Schematic...........................................................................................7-48
6815854H01-A June 15, 2005