Maxon Telecom SP200, SP210 11.3.3 Transmit Adjustments

Maxon SP200/210 Radio SP200/210

11. APPENDIX A – ACC-2003 ALIGNMENT BOX - Issue 1.0

Page 11-6 03/01

11.3.3 Transmit Adjustments

The transmit mode is entered by pressing SHIFT + T on t he keyboard.

Ensure that the Power Supply is set to +7.5V.

11.3.3.1 Power Adjustment

The power level is set by the potentiometers on the back plate of the radio, they are located

underneath the Type Approval label. Note: A spare label is shipped with every radio.

Refer to the Service Manual for the correct procedure for s etting the power levels. With the ASIC

program operating, the channel can be altered by using the “F ” key.

11.3.3.2 SAT Balance

Set Audio Generator to 400Hz, 300mV (20dB above nom inal level). Adjust TXTRIM2/TXTRIM3 to

make demodulated signal as shown in Figure 11-6.

Figure 11-6 - Modulation wave shape

11.3.3.3 Audio Deviation Limits

Use Channel 2. Turn the SAT tone off and input an audio lev el (1kHz) at 20dB above nominal. Check

that the peak deviation is between 2.0 and 2.15kHz at 12.5k Hz channel spacing or between 4.0 and

4.3kHz for 25kHz channel spacing.

TXTRIM1 can be used to adjust the audio deviation. Check at frequencies across the band.

Any other adjustments are covered earlier on in this Service Manual.

11.3.3.4 SAT Deviation

Input a SAT tone, with no MIC level. Check that the tone dev iation is between 300 and 350Hz at

12.5kHz channel spacing or 650 to 700Hz tone deviation at 25kHz channel spacing.

SATRIM2 can be used to adjust the SAT deviation. Check at frequencies across the band.

Contents

Main Page Page Page TABLE OF CONTENTS 1 INTRODUCTION 1-1 2 SPECIFICATIONS 2-1 3 ACCESSORIES & OPTIONS 3-1 4 INSTALLATION, COMMISSIONING & ALIGNMENT 4-1 8 EXPLODED MECHANICAL DRAWINGS & PARTS LISTS 8-1 9 CIRCUIT DIAGRAMS & PCB LAYOUTS 9-1 10 SPARE PARTS 10-1 11 APPENDIX ACC-2003 ALIGNMENT BOX 11-1 LIST OF FIGURES LIST OF TABLES Page 1 INTRODUCTION 1.1 Using this Manual 1.2 Amendments to this Manual 1.3 Contact Information 2 SPECIFICATIONS 2.1 General Page 3 ACCESSORIES & OPTIONS 3.1 Pre-Install Check 3.2 Accessories 3.3 Options Page 4 INSTALLATION, COMMISSIONING & ALIGNMENT 4.1 Installation 11 12 4.2 Connections 4.3 Commissioning Page Page Page 4.3.1 Test Equipment Connection 4.3.2 Transmitter Performance Tests 4.3.3 Receiver Performance Tests 4.4 Power Adjustment PowerSquelch 4.5 Alignment 4.5.1 Preparation 4.5.2 Disassembly and Re-assembly of the Radio RF PCB 4.5.3 PLL Alignment 4.5.4 Squelch Sensitivity 4.5.5 Transmitter Alignment RADIOCOMMUNICATIONS TEST SET Page 4.5.6 Receiver Alignment 5 DETAILED FUNCTIONAL DESCRIPTION 5.1 Introduction 5.2 Common Circuits 5.3 Audio ASIC 5.3.1 Audio Signal Path 5.3.2 Sat Signal Path 5.3.3 Miscellaneous Signals and Controller 5.4 Audio/SAT Circuits 5.5 Common RF Circuits ~ Page 5.6 Transmitter 5.7 Receiver ~ Page Page 6 TROUBLESHOOTING 6.1 Diagnostic Function 6.2 Troubleshooting Chart 6.3 Voltage Charts 6.3.1 Transistors (Main Circuit) Maxon SP200/210 Radio SP200/210 TROUBLESHOOTING Issue 1.0 Page 6-4 03/01 6.3.2 Integrated Circuits Table 6-5 - Integrated Circuit Voltages (Transmit) Receive Table 6-4 - Integrated Circuit Voltages (Receive) Transmit Page Page Page Page 7 PROGRAMMING 7.1 SMP6100 7.1.1 Introduction 7.1.2 Getting Started 7.1.3 Programming Page Page Page 8 EXPLODED MECHANICAL DRAWINGS & PARTS LISTS 8.1 Parts List 8.2 Spare Parts Page Page Page Page Page Page 8.4 SL100 VHF Parts List 8.4.1 V2 Control Circuit Page 8.4.2 V2 RF Page Page 8.4.3 TCXO Assembly 8.4.4 V2 VCO 8.4.5 V2 Front End 8.5 SL100 UHF Parts List 8.5.1 U2 Contr o l Circuit Page 8.5.2 U2 RF Page Page 8.5.3 TCXO 8.5.4 VCO Page 9 CIRCUIT DIAGRAMS & PCB LAYOUTS Page Page Page Page Page Page Page 10 SPARE PARTS 10.1 Spare Parts 10.1.1 Component Replacement Page Page 11 APPENDIX ACC-2003 ALIGNMENT BOX 11.1 Purpose 11.2 Test Equipment 11.3 Calibration Program 11.3.1 Operation Page Page 11.3.2 Adjustment of ASIC values Page 11.3.3 Transmit Adjustments 11.3.4 Receive Adjustments 11.4 Default Settings 11.4.1 V1 Band Default Settings 11.4.2 V2 Band Default Settings 11.4.3 U1 Band Default Settings 11.4.4 U2 Band Default Settings