Motorola ASTRO Digital XTL 5000 Detailed Service Manual page 18

xvi
Figure 3-45. B+ Routing for Controller Section........................................................................................3-65
Figure 3-46. Power-On Reset Circuit.......................................................................................................3-67
Figure 3-47. Patriot IC (U100) UART Configuration ................................................................................3-69
Figure 3-48. Serial Peripheral Interface (SPI) Block Diagram .................................................................3-72
Figure 3-49. XTL 5000 RX Signal Path ...................................................................................................3-73
Figure 3-50. XTL 5000 TX Signal Path ....................................................................................................3-75
Figure 3-51. Boot RX and Boot TX Data Lines ........................................................................................3-75
Figure 4-1. Frequency Generator Unit DC Power Supply Distribution (VHF) ..........................................4-8
Figure 4-2. Frequency Generation Unit Block Diagram (VHF) ................................................................4-9
Figure 4-3. Waveform Representation During Programming of the LV Frac-N IC (U3751) ................... 4-11
Figure 4-4. Frequency Generation Unit DC Power Supply Distribution (UHF Range 1)........................4-13
Figure 4-5. Frequency Generation Unit Block Diagram (UHF Range 1)................................................4-14
Figure 4-6. Waveform Representation During Programming of the LV Frac-N IC (U5752) ...................4-16
Figure 4-7. Frequency Generation Unit DC Power Supply Distribution (UHF Range 2)........................4-19
Figure 4-8. Frequency Generation Unit Block Diagram (UHF Range 2)................................................4-20
Figure 4-9. Waveform Representation During Programming of the LV Frac-N IC (U5752) ...................4-22
Figure 4-10. Frequency Generation Unit DC Power Supply Distribution (700-800 MHz) .......................4-25
Figure 4-11. Frequency Generation Unit Block Diagram (700-800 MHz) ...............................................4-26
Figure 4-12. Waveform Representation During Programming of the LV Frac-N IC (U6751) ...................4-28
Figure 5-1. Main Board Test Points-Top Side (for Mid Power) ............................................................5-12
Figure 5-2. Main Board Test Points-Bottom Side (for Mid Power).......................................................5-12
Figure 5-3. Main Board Test Points-Top Side (for High Power)...........................................................5-13
Figure 5-4. Main Board Test Points-Bottom Side (for High Power) .....................................................5-13
Figure 5-5. Poor RX Sensitivity or No RX Audio (136-174 MHz)-Part 1 of 2......................................5-15
Figure 5-6. Poor RX Sensitivity or No RX Audio (136-174 MHz)-Part 2 of 2......................................5-16
Figure 5-7. RX IF-Poor SINAD or No Audio (136-174 MHz) ..............................................................5-17
Figure 5-8. RX Back-End-Poor SINAD or No Audio (136-174 MHz)-Part 1 of 3..............................5-18
Figure 5-9. RX Back-End-Poor SINAD or No Audio (136-174 MHz)-Part 2 of 3..............................5-19
Figure 5-10. RX Back-End-Poor SINAD or No Audio (136-174 MHz)-Part 3 of 3..............................5-20
Figure 5-11. Low or No RX Injection Signal (136-174 MHz) ...................................................................5-21
Figure 5-12. Low or No TX Injection Signal (136-174 MHz) ...................................................................5-22
Figure 5-13. TX or RX VCO Unlock (Fail 001) (136-174 MHz)-Part 1 of 2...........................................5-23
Figure 5-14. TX or RX VCO Unlock (Fail 001) (136-174 MHz)-Part 2 of 2...........................................5-24
Figure 5-15. No Output Power at TX Mode (136-174 MHz) ...................................................................5-25
Figure 5-16. No Output Power and IDC < 2A at TX Mode (136-174 MHz).............................................5-26
Figure 5-17. No 16.8 MHz Reference Oscillator Frequency (380-470 MHz and 450-520 MHz)............5-27
Figure 5-18. Poor RX Sensitivity or No RX Audio (380-470 MHz and 450-520 MHz)-Part 1 of 2 .......5-28
Figure 5-19. Poor RX Sensitivity or No RX Audio (380-470 MHz and 450-520 MHz)-Part 2 of 2 .......5-29
Figure 5-20. RX IF-Poor SINAD or No Audio (380-470 MHz and 450-520 MHz)-Part 1 of 2............5-30
Figure 5-21. RX IF-Poor SINAD or No Audio (380-470 MHz and 450-520 MHz)-Part 2 of 2............5-31
Figure 5-22. RX Back-End-Poor SINAD or No Audio (380-470 MHz and 450-520 MHz)-
Part 1 of 3 ............................................................................................................................5-32
Figure 5-23. RX Back-End-Poor SINAD or No Audio (380-470 MHz and 450-520 MHz)-
Part 2 of 3 ............................................................................................................................5-33
Figure 5-24. RX Back-End-Poor SINAD or No Audio (380-470 MHz and 450-520 MHz)-
Part 3 of 3 ............................................................................................................................5-34
Figure 5-25. Low or No RX Injection Signal (380-470 MHz and 450-520 MHz) ....................................5-35
Figure 5-26. Low or No TX Injection Signal (380-470 MHz and 450-520 MHz) .....................................5-36
Figure 5-27. No TX Audio (380-470 MHz and 450-520 MHz) ................................................................5-37
Figure 5-28. TX or RX VCO Unlock (Fail 001) (380-470 MHz and 450-520 MHz)-Part 1 of 2 ............5-38
Figure 5-29. TX or RX VCO Unlock (Fail 001) (380-470 MHz and 450-520 MHz)-Part 2 of 2 ............5-39
Figure 5-30. RF Power Amplifier (RFPA)-No or Low TX Power Output
(380-470 MHz and 450-520 MHz)-Part 1 of 5 .................................................................5-40
May 25, 2005
List of Figures
6881096C74-B