Maxon Telecom SP200, SP210 Balance Adjustment, Audio deviation adjustment, Ctcss / DCS deviation

Page 27

SP200/210

Balance Adjustment

a.Select Channel 3 (using software).

b.Set the audio generator to a 310Hz tone, low output impedance, at a level of 400mV.

c.Press Shift + T on the keyboard to transmit.

d.Adjust TXTRIM2/TXTRIM3 to give a square wave on the oscilloscope (check that audio enable is ON on the Interface Box.

e.Press Shift + R to turn off the transmitter.

Audio deviation adjustment

a.Select Channel 3 and press Shift + T to turn on the transmitter.

b.Set the audio generator to 1kHz and adjust its level for 60% peak system deviation. Ensure that, depending upon the channel spacing of channel 3, the deviation is either:

12.5kHz channel spacing 1.5kHz dev. or 20kHz channel spacing2.4kHz dev. or 25kHz channel spacing3kHz dev.

c.Measure the audio distortion. This should be less than 5%.

d.Increase the audio level by 20dB (10x voltage).

e.Adjust TXTRIM1. to set the deviation to:

12.5kHz channel spacing 2.25kHz dev. or 20kHz channel spacing3.6kHz dev. or 25kHz channel spacing4.5kHz dev.

f.Slowly sweep the audio signal generator between 300Hz and 3kHz. Record the peak deviation. The peak deviation should be:

12.5kHz channel spacing <= 2.5kHz dev. or 20kHz channel spacing<= 4kHz dev. or 25kHz channel spacing<= 5kHz dev.

If necessary, adjust TXTRIM1 to keep within the system deviation.

g.Repeat para. f with the radio set to Channel 1.

Issue 1.0 03/01

Maxon SP200/210 Radio

If necessary, adjust TXTRIM1 to keep within the system deviation.

h. Press Shift + R to return to receive.

CTCSS / DCS deviation

a.Select Channel 4.

b.Turn off the audio signal generator so that the RF signal generator is not modulated.

c.Press Shift + T on the keyboard.

d.Adjust SATRIM2 for the desired CTCSS tone peak deviation (± 50Hz) which is:

12.5kHz channel spacing 0.25kHz dev. or 20kHz channel spacing0.4kHz dev. or 25kHz channel spacing0.5kHz dev.

e.Press Shift + R to return to receive.

f.Select Channel 5.

g.Press Shift + T and check that

the deviation is the same as above. If the deviation is greater than above, adjust SATTRIM2.

h.Press Shift + R to return to receive.

i.Select Channel 4.

j.Press Shift + T to transmit.

k.Turn the audio generator back on so that the RF signal generator is modulated with a 310Hz tone.

12.5kHz channel spacing 2.5kHz dev. or 20kHz channel spacing4.0kHz dev. or 25kHz channel spacing5.0kHz dev.

l.Press Shift + R to return to receive.

Select Channel 5 and press Shift + T.

Check that the peak deviation is less than:

12.5kHz channel spacing <= 2.5kHz dev. or 20kHz channel spacing<= 4.0kHz dev. or 25kHz channel spacing<= 5.0kHz dev.

If necessary, adjust TXTRIM to keep within the system deviation.

m.Press Shift + R to return to receive.

n.Write the changes to the radio.

INSTALLATION, COMMISSIONING & ALIGNMENT Page 4-13

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Contents
SP200/210 NSW Australia Tel +61 0 2 9707 Issue No Effective Date Reason for Change Signature Amendment Record SheetAmendment Record Sheet Maxon SP200/210 Radio Table of Contents 11-1 SL100 UHF Parts List11.4 Default Settings 11-8 10-1List of Tables Maxon SP200/210 Radio Issue 03/01 Category C Engineering Bulletin Using this ManualIntroduction Amendments to this ManualContact Information General SpecificationsESD EMC Environmental Operating Temperature RangePhysical Dimensions Synthesiser VibrationAccessories & Options Pre-Install Check AccessoriesOptions Accessories & Options Connections INSTALLATION, Commissioning & AlignmentInstallation INSTALLATION, Commissioning & AlignmentRecommended Test Equipment CommissioningCommissioning Kit Commissioning EquipmentDiscrete Test Equipment Test Equipment Set-up using Discrete Test EquipmentSK 3100 Service Kit Test Equipment Connection Transmitter Performance TestsReceiver Performance Tests Power Adjustment SquelchAudio Output VHF Tests without DisassemblyAlignment PreparationDisassembly and Re-assembly of the Radio Removing and Replacing BatteryRemoving and Replacing the Belt Clip Removing and Replacing the Main Assembly Location of Adjustment Points PLL Alignment Squelch Sensitivity Transmitter AlignmentTcxo Radiocommunications Test SET Balance Adjustment Audio deviation adjustmentCtcss / DCS deviation Audio Volume Level At maximum volume, nominal distortion is 10%Receiver Alignment Eeprom Detailed Functional DescriptionIntroduction Common CircuitsAudio Asic Audio Signal PathMiscellaneous Signals and Controller Sat Signal PathAudio/SAT Circuits PLL Synthesiser Battery Low Indicator CircuitLEDs and indicators Common RF CircuitsDC to DC Converter PLL ICOut-of-Lock Detector Charge Pump and Loop FilterPA module Antenna SwitchAutomatic power control APC circuits TransmitterFront End Receiver16kHz Band Pass Filter First MixerSecond mixer, Second IF, FM detector Squelch Mute CircuitNoise detector circuit AF Output Low Pass FilterSpeaker Audio Amplifier Troubleshooting TroubleshootingDiagnostic Function DiagnosticsIf IC Troubleshooting ChartVoltage Charts Transistors Main CircuitMain Circuit Transistor Voltages Integrated Circuits Integrated Circuit Voltages ReceiveIntegrated Circuit Voltages Transmit Troubleshooting Troubleshooting Troubleshooting Troubleshooting Getting Started ProgrammingSMP6100 IntroductionProgram Radio Select Features MenuScanning Program/Print/SaveSave Data to Disk Print DataMaxon SP200/200 Radio SP200/210 Spare Parts Exploded Mechanical Drawings & Parts ListsParts List Exploded Mechanical Drawings & Parts ListsSL100V2 SL100U2For details on servicing, please refer to Section Mechanical PartsLCD TTR 1866 Dpfdpw Parts List for Exploded Mechanical DrawingNUT M7 Bsbm PCB LCDSKPT-110VA SML-020MLTT86 SMDPCB VCO PCB RF Bsbm M2.6 AldcSL100 VHF Parts List V2 Control Circuit05B-000-5Z Chip Ceramic 0.0022UF GRM39 X7R222J 50V P Diode Switching KDS181S A3Chip Ceramic 0.001UF GRM39 X7R102K 50V P Chip Ceramic 0.012UF GRM39 X7R123K 25V PSW Tact SKPT-1101VA 2 V2 RFElect Capacitor 10UF 16V 20% RES.CHIP Trimmer 1K RH03E1C13XRES.CHIP Trimmer 10K RH03E1C14X Thermistor Chip 33KNTCCS32163SH333KC TH1Chip Ceramic 47PF GRM39 COG470J 50V P RE Power Module GNOK-M68776-E01 IC9Chip Ceramic 39PF GRM40 COG390J 50V P Chip Ceramic 43PF GRM40 COG430J 50V PTcxo Assembly 5 V2 Front End 4 V2 VCOU2 Control Circuit SL100 UHF Parts ListConnector Waffer Chip Resistor 39K 2 U2 RFChip Resistor 12K Chip Resistor 18KChip Ceramic RES.CHIP Trimmer K RH03E1C13XChip Ceramic 0.0015UF GRM39 X7R152K 50V P Chip Ceramic 10PF GRM40 COG100C 50V PChip Ceramic 4.7PF GRM40 COG4R7C 50V P Power Mpduleuhf M68732HGNOK IC9Chip Ceramic 2.2PF GRM40 COG2R2C 50V P Chip Ceramic 470PF GRM40 COG471J 50V PCoil Spring 2X0.75X3TL SMD TcxoCoil Chip 18NHLL2012-F18NM Coil Spring X0.35X7TR4 VCO Maxon SP200/210 Radio Tcxo Circuit Diagrams & PCB LayoutsCircuit Diagrams & PCB Layouts RF PCBCircuit Diagrams & PCB Layouts Digital Board Layout Top Side Digital Board Layout Bottom Side RF Board Layout Top Side Issue RF Board Layout Bottom Side P406787a Front End Front-End Board Layout Tcxo Board Layout Spare Parts & Maintenance Policy 10SPARE Parts10.1Spare Parts Surface mount removal Component ReplacementSurface mount component replacement Surface mount componentsSurface mounted integrated circuit replacement Spare Parts & Maintenance Policy 11.3Calibration Program 11APPENDIX ACC-2003 Alignment BOX11.1Purpose 11.2Test EquipmentAppendix a ACC-2003 Alignment BOX Calibration Program Primary ScreenAsic Control Screen Rx Adjustment of Asic values TXTRIM2TXTRIM3 RX VOL Transmit Adjustments SAT BalanceSAT Deviation Audio Output Level Receive AdjustmentsV1 Default Asic Settings 11.4Default Settings11.4.1 V1 Band Default Settings V1 Default Frequency Table11.4.2 V2 Band Default Settings V2 Default Frequency TableV2 Default Asic Settings 11.4.3 U1 Band Default Settings U1 Default Frequency TableU1 Default Asic Settings 11.4.4 U2 Band Default Settings U2 Default Frequency TableU2 Default Asic Settings
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