Maxon Telecom SP200, SP210 6 TROUBLESHOOTING

SP200/210 Maxon SP200/210 Radio

Issue 1.0 TROUBLESHOOTING

03/01 Page 6-1

6 TROUBLESHOOTING

This section includes voltage and troubleshooting char ts which should assist the engineer to isolate

and repair the fault. Voltage measurements should be m ade using a high-impedance voltmeter and

the values given are with respect to ground.

Obvious checks, such as battery performance on load, shou ld be made before pulling the radio apart.

Substitution of another set of batteries, or the use of a po wer supply, isolates this cause.

The alignment procedures, given in Section 5, list how s tandard tests such as SINAD measurements

can be made. These can be used to check the performance of the receiver.

Careful alignment, using suitable test equipment, and qu ality interface cables should ensure that the

radios meet their specified performance.

6.1 Diagnostic Function

The diagnostic function is designed to inform the user ab out the operational status of the radio.

The possible audible and visual warnings are:

Status Description LED Colour LCD Indication Audible Tone

Normal Power O n Ready N/A 188 Melody

Busy Yellow Channel Number N/A

Correct S.A. Tone Green N/A

Transmit Red N/A

Transmit Not Allowed Red Flashing Alternating UL

with Channel No. Repeating Dual Tone

Scanning Scan Flashing Green N/A

Priority Scan Mode Green Flashing N/A N/A

Priority Lookback Green Flashing Lb/Channel

Number N/A

Priority

Edit Edit Priority Channel Two Red

Flashes PE N/A

Scan Edit Edit Scan List Single Red

Flash SE N/A

Warning Time-Out Timer N/A Pt Single Tone/Tr iple

Tone Repeated

Busy Lock Flashing Yellow bL Repeating Single Tone

Tx Inhibit N/A _h/r0 Two Beeps

Battery Low Flashing R ed LC Repeating Triple Tone

Error EEprom N/A Er Repeating Single Tone

PLL Error N/A UL Repeating Dual Tone

Table 6-1 – Diagnostics

Note: All audible tones can be programmed OFF for silent op eration.

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