用户手册目录Introduction1TEL Contact Information2About This Manual3Updating Equipment And Manuals4Copyright4Ordering Tait Service Manuals4Publication Information4Table Of Contents5List Of Effective Pages6Part A Introduction To Servicing131 General151.1 Additional Technical Information151.2 Caution: CMOS Devices151.3 Caution: Aerial Load161.4 Caution: Beryllium Oxide & Power Transistors162 Mechanical172.1 Torx Recess Head Screws172.2 Pozidriv & Philips Recess Head Screws182.3 Disassembly/Reassembly192.3.1 Receivers/Exciters/Transmitters192.3.2 Power Amplifiers192.4 Cover Screw Torques193 Component Replacement213.1 Leaded Components213.1.1 Desoldering Iron Method213.1.2 Component Cutting Method213.2 Surface Mount Devices223.3 Cased Mica Capacitors224 Software History234.1 PGM800Win V1.0234.2 PGM800Win V2.0023Part B T855 Receiver251 T855 General Information271.1 Introduction311.2 Specifications321.2.1 Introduction321.2.2 General331.2.3 RF Section331.2.4 Audio Section351.2.4.1 General351.2.4.2 CTCSS351.2.4.3 Mute Operation361.2.5 Microprocessor Controller361.2.6 Test Standards361.2.6.1 European Telecommunication Standard361.2.6.2 DTI CEPT Recommendation T/R-24-01371.2.6.3 Telecommunications Industry Association371.3 Product Codes381.4 Standard Product Range392 T855 Circuit Operation412.1 Introduction432.2 Receiver Front End442.3 Mixer452.4 IF Circuitry452.5 Noise Mute (Squelch)462.6 Carrier Mute462.7 Audio Processor472.8 Power Supply And Regulators482.9 Microcontroller492.10 Synthesised Local Oscillator502.11 VCO512.12 Received Signal Strength Indicator (RSSI)523 T855 Initial Tuning & Adjustment533.1 Introduction553.2 Channel Programming553.3 Test Equipment Required563.4 Short Tuning Procedure573.4.1 Introduction573.4.2 Synthesiser Alignment573.4.3 Front End Alignment573.4.4 Mute Adjustment583.4.4.1 Noise Mute583.4.4.2 Carrier Level Mute583.4.5 Line Amplifier Output583.4.6 CTCSS593.4.6.1 Decoder Operation593.4.6.2 Opening Sinad593.4.6.3 High Pass Filter593.4.7 RSSI (If Fitted)603.5 Audio Processor Links603.5.1 General603.5.2 Audio Processor Linking Details For CTCSS613.6 Synthesiser Alignment623.7 Alignment Of Receiver Front End And IF623.8 Gating Delay643.9 Noise Mute Adjustment643.10 Carrier Level Mute643.11 Audio Processor653.11.1 Line Amplifier Output653.11.2 Monitor Amplifier Output (Speaker Output)653.12 CTCSS653.12.1 Decoder Operation653.12.2 Opening Sinad653.12.3 High Pass Filter663.13 RSSI664 T855 Functional Testing674.1 Current Consumption694.2 Sensitivity694.3 Switching Range694.4 Audio Distortion704.5 Ultimate Signal-To-Noise Ratio704.6 Deemphasised Audio Frequency Response714.7 Noise Mute (If Linked In)724.8 RSSI (If Fitted)724.9 Carrier Level Mute (RSSI Fitted & Carrier Mute Linked In)735 T855 Fault Finding755.1 Visual Checks775.2 Component Checks775.3 Front Panel LED Indicator775.4 DC Checks785.4.1 Power Rails785.4.2 VCO Locking785.4.3 Mute Operation785.5 RF Checks795.5.1 VCO Frequency795.5.2 RF Sensitivity795.5.3 Oscillator Stability805.5.3.1 TCXO805.5.3.2 Second IF805.5.4 Demodulator Output805.5.5 IF Distortion805.6 PGM800Win Generated Errors825.7 Fault Finding Charts835.7.1 Microcontroller (IC810)835.7.1.1 Basic Checks835.7.1.2 Serial Communication845.7.1.3 CTCSS Decode855.7.2 Regulator865.7.3 Synthesiser875.7.4 Noise Mute905.7.5 Carrier Mute915.7.6 Receiver925.7.7 Audio936 T855 PCB Information956.1 Introduction97Product Type Identification97PCB Identification97Parts Lists98Parts List Amendments98Variant Components99Grid Reference Index99Using CAD Circuit Diagrams1006.2 T800-04-0000 RSSI PCB101T800-04-0000 Parts List (IPN 220-01138-00)1036.3 T855 Receiver PCB107T855 Parts List (IPN 220-01396-02)109T855 Mechanical & Miscellaneous Parts (220-01396-02)116T855 Grid Reference Index (IPN 220-01396-02)119Part C T856 Transmitter & T857 Exciter1231 T856/857 General Information1251.1 Introduction1311.2 Specifications1321.2.1 Introduction1321.2.2 General1321.2.3 RF Section1331.2.4 Audio Processor1341.2.4.1 Inputs1341.2.4.2 Modulation Characteristics1351.2.4.3 CTCSS1351.2.5 Microcontroller1351.2.6 Test Standards1361.2.6.1 European Telecommunication Standard1361.2.6.2 DTI CEPT Recommendation T/R-24-011361.2.6.3 Telecommunications Industry Association1361.3 Product Codes1371.4 T856 Standard Product Range1381.5 T857 Standard Product Range1392 T856/857 Circuit Operation1412.1 Introduction1432.2 Microcontroller1442.3 Synthesised Local Oscillator1452.3.1 Two Point Modulation1462.4 VCO1472.4.1 VCO Supply1472.5 Audio Processor1482.5.1 General1482.5.2 Audio Inputs1482.5.3 Keying Inputs1492.5.4 Compressor (Automatic Level Control (ALC))1492.5.5 Outputs To Modulators1492.6 Power Supply & Regulator Circuits1502.7 Transmit Timers1512.8 T856 Drive Amplifier & PA1522.9 T857 Exciter Drive Amplifier1533 T856/857 Initial Tuning & Adjustment1553.1 Introduction1573.2 Channel Programming1573.3 Test Equipment Required1583.4 Short Tuning Procedure1593.4.1 Introduction1593.4.2 Synthesiser Alignment1593.4.3 Output Power Adjustment (T856 Only)1593.4.4 Two Point Modulation Adjustment1603.4.5 FM Deviation (Limiter) Adjustment1603.4.6 Line-in Level Adjustment1613.4.7 CTCSS Encoder1613.5 Audio Processor Links1623.5.1 Link Details1623.5.2 Typical Options1623.6 Synthesiser Alignment1633.7 PA Alignment (T856 Only)1643.8 Thermal Shutdown (T856 Only)1643.9 Audio Processor1653.9.1 Two Point Modulation1653.9.2 Modulator Adjustment1653.9.3 Limiter Adjustment1663.9.4 Line Level Without Compressor1663.9.5 Compressor1663.9.5.1 Compressor On Line Input Only1663.9.5.2 Compressor On Microphone Input Only1673.9.5.3 Compressor On Both Line & Microphone Inputs1673.10 CTCSS Encoder1684 T856/857 Functional Testing1694.1 Current Consumption1714.2 Output Power1714.3 Output Frequency1714.4 Timers1714.5 Frequency Response1724.6 Audio Level Input Sensitivity1755 T856/857 Fault Finding1775.1 Visual Checks1795.2 Component Checks1795.3 Front Panel LED Indicator1795.4 DC Checks1805.4.1 Power Rails1805.4.2 VCO Locking1805.5 RF Checks1815.5.1 T856 Drive Power1815.5.2 T856 PA Output Power1815.5.3 T857 Output Power1815.5.4 Audio And Modulation1825.6 PGM800Win Generated Errors1835.7 Fault Finding Charts1845.7.1 Microcontroller (IC810)1845.7.1.1 Basic Checks1845.7.1.2 Serial Communication1855.7.1.3 CTCSS Encode1865.7.2 Regulator1875.7.3 Synthesiser1885.7.4 T856 Drive Amplifier1915.7.5 T856 PA & Power Control1925.7.6 T857 Exciter Drive Amplifier1935.7.7 Audio Processor1945.8 To Replace The T856 PA Transistors (Q410 & Q420)1956 T856/857 PCB Information1976.1 Introduction199Product Type Identification199PCB Identification199Parts Lists200Parts List Amendments200Variant Components201Grid Reference Index201Using CAD Circuit Diagrams2026.2 T856 Transmitter PCB203T856 Parts List (IPN 220-01397-01)205T856 Mechanical & Miscellaneous Parts (220-01397-01)212T856 Grid Reference Index (IPN 220-01397-01)2156.3 T857 Exciter PCB219T857 Parts List (IPN 220-01398-02)221T857 Mechanical & Miscellaneous Parts (220-01398-02)226T857 Grid Reference Index (IPN 220-01398-02)229Part D T858 & T859 Power Amplifiers2331 T858/859 General Information2351.1 Introduction2411.2 Specifications2421.2.1 Introduction2421.2.2 General2421.2.3 Test Standards2431.2.3.1 European Telecommunication Standard2431.2.3.2 DTI CEPT Recommendation T/R-24-012441.2.3.3 Telecommunications Industry Association2441.3 Product Codes2451.4 Standard Product Range2462 T858/859 Circuit Operation2472.1 Introduction2492.2 RF Circuitry2502.3 Control Circuitry2512.3.1 Power Control2522.3.2 T859 Driver Power Level2522.3.3 Thermal Protection2522.3.4 Forward And Reverse Power Alarms2532.3.5 Forward And Reverse Power Metering2532.3.6 T859 Fan Control Circuitry2533 T858/859 Initial Adjustment2553.1 Test Equipment Required2573.2 Preliminary Checks2573.3 RF Alignment2583.3.1 Standard Tuning Procedure2583.3.2 Tuning Control Settings2593.3.3 Tuning For Best Efficiency2593.4 Setting The Output Power2603.5 T858 High Temperature Shutdown Power Level2613.6 T859 High Temperature Shutdown Power Level2613.7 Remote Forward Power Meter Calibration2623.8 Remote Reverse Power Meter Calibration2623.9 Setting Alarm Levels2623.9.1 Forward Power2623.9.2 Reverse Power2624 T858/859 Fault Finding2654.1 Visual Checks2674.2 Component Checks2674.3 DC Checks2674.4 RF Checks2684.4.1 General2684.4.2 PA Faults2684.5 Voltage Chart2714.6 Fault Finding Charts2724.6.1 T858 PA2724.6.2 T858 Power Control2734.6.3 T859 PA2744.6.4 T859 Power Control2754.6.5 T859 Fan Control Circuitry2764.7 Replacing RF Power Transistors2774.8 Removing The PCB From The Heatsink2795 T858/859 PCB Information2816.1 Introduction283Product Type Identification283PCB Identification283Parts Lists284Parts List Amendments284Variant Components285Grid Reference Index285Using CAD Circuit Diagrams2865.2 T858 Power Amplifier PCB287T858 Parts List (IPN 220-01141-01)289T858 Mechanical & Miscellaneous Parts (220-01141-01)294T858 Grid Reference Index (IPN 220-01141-01)2975.3 T859 Power Amplifier PCB299T859 Parts List (IPN 220-01159-01)301T859 Mechanical & Miscellaneous Parts (220-01159-01)306T859 Grid Reference Index (IPN 220-01159-01)309Part E T850 VCO PCB Information3111 Introduction313PCB Identification313Parts Lists313Parts List Amendments314Variant Components3142 T850 VCO PCB315T850 VCO Parts List (IPN 220-01145-02)317Part F Installation321Part G System Configurations3231 T855 Link Selectable Features3251.1 Flat Or Deemphasised Response3251.2 Mute Relay Control3251.3 Mute Selection3251.4 Receiver Disable3251.5 CTCSS Configuration3251.6 300Hz High Pass Filter3261.7 Audio Processor Links3261.7.1 General3261.7.2 Audio Processor Linking Details For CTCSS3272 T856/857 Optional Features3292.1 Audio Processor3292.1.1 Link Details3292.1.2 Typical Options3302.2 Line Transformer Inputs And Outputs3302.3 Opto Key3302.4 Relay Driver3302.5 Local Microphone3312.6 Keying With Option PCBs3312.7 Transmit Key Time3313 Talk Through Repeater3334 Line Controlled Base Without Talk Through3354.1 General3354.2 Transmitter Tail Timer3365 DC Line Keying337Part H T800 Ancillary Equipment339T800 Ancillary Equipment341Programming Kits341T800-01-0000341T800-01-0001341T800-01-0002341T800-01-0003341T800-01-0004341General Ancillaries342T004-72 RF Coaxial Relay342T800-01-0010 Calibration Test Unit342T800-03 Auxiliary D-Range342T800-03-0000 Auxiliary D-Range342T800-04-0000 RSSI343T800-08-0000 Ancillary Chassis343T800-10-0000 Channel Select PCB343T800-80 Local Microphone343T818-01-0000 Receiver/Transmitter Monitor344Paging345T800-30-0000 & T800-30-0002 DFSK Modulators345T800-32-0000 & T800-32-0010 DFSK Modulators345External Frequency Reference346T800-06-0000 External Frequency Reference Kit346T800-06-0001 External Frequency Reference Kit346T801-00 Frequency Reference Module346T801-10 OCXO Module346Rack Frames347T800-22-0000347T800-22-0001347T800-22-0002347T800-22-0003347T800-22-0004347T800-22-0005348T800-23-0000 Slimline Repeater Mounting Kit348T800-23-0001 Slimline Repeater Mounting Kit348Rack Frame Guides349T800-41-0001349T800-41-0002349T800-41-0003349T800-41-0004349T800-42-0000349T800-42-0001350T800-42-0002350T800-43-0000350T800-43-0001350T800-44-0000350T800-45-0000350T800-45-0001350Rack Frame PCBs351T800-50-0000351T800-50-0001351T800-52-0000351T800-60-0000351Rack Frame Ancillaries352T800-13-0000 Extender Rail352T800-14-0000 Extender Rail352T800-19-0000 Rack Mounting Fan352T800-19-0010 Rack Mounting Fan352Front Panels353T800-15-0000 Speaker Panel353T800-15-0001 Speaker Panel353T800-17-0010 Circuit Breaker Panel353T800-17-0020 Circuit Breaker Panel353T800-40-0000 Blank Panel Fitting Kit353T800-40-0001 Blank Panel353Power Supplies354T800-23-0010 Mains Power Supply354T807-10-0000 Mains Power Supply354T808-10-0000 Mains Power Supply354Part I Using T850 Series II Equipment In A Series I Rack Frame3551 Tools Required3572 T855/856/857 SII - SI Conversion3592.1 Introduction3592.2 Method3603 T858/859 SII - SI Conversion3673.1 Introduction3673.2 Method368文件大小: 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