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Nokia 6255 Rf Description And Troubleshooting

Also see for 6255: User guideUser guideUser guideUser guideDisassembly manual

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Contents
  1. troubleshooting
  2. Table Of Contents
  3. Table Of Contents
  4. Introduction
  5. Mobile Terminal Components
  6. UI (Secondary) PWB
  7. Preliminary RF Troubleshooting
  8. Transmitter RF Troubleshooting
  9. Transmitter Block Diagram
  10. Transmitter Schematics
  11. Transmitter Troubleshooting Setup
  12. Cell Tx Setup
  13. i/6256/6256i (RM
  14. PCS Setup
  15. Transmitter RF Troubleshooting Procedures
  16. Failed Test: Tx PA Detector
  17. Tx Output Spectrum
  18. Tx DC Test Points - Bottom Side
  19. Tx DC and RF Test Points - Top Side
  20. Tx RF Test Points - Bottom Side
  21. RF Power Supply DC Test Points - Bottom Side
  22. Receiver RF Troubleshooting
  23. Receiver Block Diagram
  24. Receiver Schematics
  25. RF AGC Status
  26. Turning on the Rx Path
  27. Nokia Customer Care RF Description and Troubleshooting
  28. Switching the Rx Gain States
  29. Checking Cell Receiver from RF to IQ
  30. Checking PCS Receiver from RF to IQ
  31. Receiver Diagnostic Signal Tracing
  32. Receiver DC Test Points
  33. Receiver RF Test Points
  34. Receiver IF Test Points
  35. Receiver Logic Input Voltages
  36. N7160 Receiver Overview
  37. Synthesizer Troubleshooting
  38. Synthesizer Block Diagram
  39. Synthesizer Schematics
  40. Synthesizer Troubleshooting Setup
  41. VCTCXO Troubleshooting
  42. VCTCXO Manual Tuning
  43. AFC Voltage Troubleshooting
  44. UHF Synthesizer
  45. UHF Synthesizer Test Points
  46. Rx VHF LO (N7100) Schematic
  47. Rx VHF LO Troubleshooting
  48. Tx UHF LO (N7000) Schematic
  49. Tx UHF LO (N7000) Troubleshooting
  50. GPS Troubleshooting
  51. GPS RF Schematic
  52. GPS Troubleshooting Setup
  53. Self Test Failure
  54. GPS DC Test Points
  55. GPS RF Test Points
  56. FM Radio Troubleshooting
  57. FM Radio Troubleshooting Setup
  58. Bluetooth Troubleshooting
  59. Bluetooth Troubleshooting Setup
  60. Bluetooth Troubleshooting Flowchart
  61. Bluetooth DC and RF Test Points
Nokia 6255 Rf Description And Troubleshooting Manual pdf 12 page image
6255/6255i/6256/6256i (RM-19)RF Description and Troubleshooting Nokia Customer CarePage 12 ©2005 Nokia Corporation Company Confidential Issue 2 05/2005Transmitter Block DiagramFollowing is the block diagram for the Tx RF system.Figure 6: Tx system block diagramN7000 Tx IC
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This manual is suitable for:
62556255i - Cell Phone - CDMA2000 1X62566256i
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