x
Table of Contents
June 15, 2005
6815854H01-A
700–800 MHz Main Board Troubleshooting.................................................................................4-22
4.9.1
4.10 Standard Bias Tables ...................................................................................................................4-28
4.11 Receiver Front-End (RXFE) .........................................................................................................4-32
4.11.1 VHF (136–174 MHz) Band ..............................................................................................4-32
4.11.2 UHF Range 1 (380–470 MHz) Band ...............................................................................4-32
4.11.3 UHF Range 2 (450–520 MHz) Band ...............................................................................4-33
4.11.4 700–800 MHz Band.........................................................................................................4-33
Troubleshooting Charts ......................................................5-1
Flowcharts ....................................................................................................................................5-11
5.6.1
Poor RX Sensitivity or No RX Audio (136–174 MHz)—Part 1 of 2..................................5-12
Poor RX Sensitivity or No RX Audio (136–174 MHz)—Part 2 of 2..................................5-13
RX Back-End—Poor SINAD or No Audio (136–174 MHz)—Part 1 of 3..........................5-15
RX Back-End—Poor SINAD or No Audio (136–174 MHz)—Part 2 of 3..........................5-16
RX Back-End—Poor SINAD or No Audio (136–174 MHz)—Part 3 of 3..........................5-17
TX or RX VCO Unlock (Fail 001) (136–174 MHz)—Part 1 of 2.......................................5-20
5.6.10 TX or RX VCO Unlock (Fail 001) (136–174 MHz)—Part 2 of 2.......................................5-21
5.6.11 No Output Power at TX Mode (136–174 MHz) ...............................................................5-22
5.6.12 No Output Power and IDC < 2A at TX Mode (136–174 MHz).........................................5-23
5.6.13 No 16.8 MHz Reference Oscillator Frequency (380–470 MHz and 450–520 MHz)........5-24
5.6.14 Poor RX Sensitivity or No RX Audio (380–470 MHz and 450–520 MHz)—Part 1 of 2 ...5-25
5.6.15 Poor RX Sensitivity or No RX Audio (380–470 MHz and 450–520 MHz)—Part 2 of 2 ...5-26
5.6.16 RX IF—Poor SINAD or No Audio (380–470 MHz and 450–520 MHz)—Part 1 of 2........5-27
5.6.17 RX IF—Poor SINAD or No Audio (380–470 MHz and 450–520 MHz)—Part 2 of 2........5-28
5.6.18 RX Back-End—Poor SINAD or No Audio (380–470 MHz and 450–520 MHz)—
5.6.19 RX Back-End—Poor SINAD or No Audio (380–470 MHz and 450–520 MHz)—
5.6.20 RX Back-End — Poor SINAD or No Audio (380–470 MHz and 450–520 MHz)—
Содержание XTL 1500
Страница 1: ......
Страница 5: ...iv June 15 2005 6815854H01 A This page is intentionally left blank ...
Страница 19: ...xviii List of Figures June 15 2005 6815854H01 A This page is intentionally left blank ...
Страница 25: ...June 15 2005 6815854H01 A xxiv CommercialWarranty Notes ...
Страница 35: ...June 15 2005 6815854H01 A xxxiv Model Numbering Charts and Specifications Notes ...
Страница 49: ...June 15 2005 6815854H01 A 2 12 Product Overview Controller Section Notes ...
Страница 161: ...June 15 2005 6815854H01 A 4 36 Troubleshooting Procedures Power Amplifier Procedures Notes ...
Страница 225: ...June 15 2005 6815854H01 A 5 64 Troubleshooting Charts Flowcharts Notes ...
Страница 429: ...8 2 Flex Cable Pin Out Lists Flex Cables June 15 2005 6815854H01 A Notes ...
Страница 441: ...June 15 2005 6815854H01 A Glossary 10 Notes ...
Страница 451: ...Index x June 15 2005 6815854H01 A This page is intentionally left blank ...