OTE PUMA T2 - Troubleshooting

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PUMA T2

Technical Handbook

Troubleshooting

P/N: 779-0306/01

Revision 03

OTE Proprietary information

Page 71

7. TROUBLESHOOTING

The portable radio PUMA T2 troubleshooting techniques are described in this

section. These techniques are meant to find out failures that cause a bad

functioning of the equipment.

The information given in this manual takes into consideration the fact that all the III

level maintenance operations will be done only by the OTE assistance technicians.

The descriptions of the replacement procedures which can be done by the

purchaser are detailed in section 8 of this technical manual.

Main Page

Table of Contents9
List of Acronyms17
Glossary29
Reference Regulations33
General Information35
Introduction35
Tetra Network Overview37
Tab. 1.1: Acronyms Related to Fig. 1.138
Fig. 1.1: TETRA Network Architecture39
Tetra Network Equipment40
Radio Base Station (BS)40
Switching and Control Node (SCN)40
Network Management System (NMS)40
Control Room Server (CRS)40
WDS, RDS and LDS40
Terminals: Fixed Stations, Vehicular Radio and Hand-Held Radio41
Reference Standard41
General Characteristics42
Fig. 1.2: PUMA T2 Hand-Portable Radio43
Trunked Mode Services44
Introduction to Speech Calls44
Individual Calls44
Talk Group Calls44
Telephone Interconnect Call46
Data Calls47
Circuit Data Services47
Short Data Service47
Priority Group Scanning48
Class of Usage (Cou) Priorities48
Scanning Algorithm48
Over the Air Programming (Otap)49
Direct Mode Services50
Speech Calls50
Short Data Services51
Emergency Speech Call52
Programming the Equipment53
Technical Characteristics54
Tab. 1.2: Technical Characteristics54
Maintenance56
Tab. 1.3: Maintenance Levels56
Main Components57
Tab. 1.4: PUMA T2 Main Components57
Standard References58
Safety Recommendations59
Esd Precautions65
Technical Description67
Introduction67
General Description68
Puma T2 Mechanics69
Base Band Section70
Fig. 2.1: Functional Block Diagram of the Base Band Board70
Tab. 2.1: Flex Connector Interface Signals71
Tab. 2.2: I/F RT Connector Interface Signals74
Power Supply78
Fig. 2.2: Power Supply Functional Block Diagram78
Radiofrequency Section79
Fig. 2.3: RT Board Functional Block Diagram79
Tab. 2.3: Signal Frequnces81
Tab. 2.4: VCO Frequencies82
Tab. 2.5: VCOL Frequencies82
Fig. 2.4: Power Supply and Control Signal Functional Block Diagram83
External Connectors84
Fig. 2.5: PEI Connector84
Tab. 2.6: External Connector84
Tab. 2.7: Headset Connector84
Installation85
Introduction85
Unpacking/Re-Packing Instructions and Storage/Transport Requirements86
Unpacking86
Storage86
Re-Packing and Transport86
Setting up87
Introduction87
Settings88
HW/SW Configurations88
Connecting the Equipment and the Computer88
General Description89
Disposal91
Introduction91
Dismantling and Disposal92
Provisions for Re-Use93
Preventive Maintenance95
Introduction96
Collection of Preventive Maintenance Forms97
Tab. 6.1: Summary of the Preventive Maintenance Operations97
Troubleshooting105
Introduction106
Radio Tests with the Radio Test Set107
Tests with Radio Test Set107
Fig. 7.1: Tetra Radio Test Set107
Fig. 7.2: SYSTEMS Key108
Fig. 7.3: System Selection108
Fig. 7.4: Channel Selection109
Fig. 7.5: DATA Keys109
Fig. 7.6: Red "ENTER" Keys110
Fig. 7.7: "Manual Test" and "Mode111
Tab. 7.1: Parameters112
Fig. 7.8: Adjustment Knob113
Troubleshooting Flow Diagrams114
PUMA T2: Troubleshooting Flow Diagrams114
Tab. 7.2: Portable Radio PUMA T2 Troubleshooting114
Fig. 7.9: It's Not Possible to Control the Volume of the Speaker115
Tab. 7.3: Description of the Symbols Used in the Troubleshooting Flow Diagrams115
Fig. 7.10: the Radio Doesn't Turn on116
The Radio Doesn't Turn on116
Fig. 7.11: It's Not Possible to Exchange Data with an External Equipment (Sheet 1 of 2)117
It's Not Possible to Exchange Data with an External Equipment117
Fig. 7.11: It's Not Possible to Exchange Data with an External Equipment (Sheet 2 of 2)118
Fig. 7.12: the Equipment Turns off Every Now and then119
The Equipment Turns off Every Now and then119
Fig. 7.13: Failure in the Selection of the Standard Operative Functions And/Or in the Selection of the Digits from the Keyboard120
Fig. 7.14: the Green And/Or Red LED Are Not Lit When They Should120
Fig. 7.15: the Display Is out of Order or It Shows Wrong Things120
Failure in the Selection of the Standard Operative Functions And/Or120
The Green And/Or Red LED Are Not Lit When They Should120
The Display Is out of Order or It Shows Wrong Things120
The Radio Link, Within the Normal Coverage Area, Is Impossible121
Fig. 7.16: the Radio Link, Within the Normal Coverage Area, Is Impossible, Intermittent122
Fig. 7.16: the Radio Link, Within the Normal Coverage Area, Is Impossible, Intermittent or Faint (Sheet 2 of 2)122
Corrective Maintenance123
Introduction123
Collection of Corrective Maintenance Forms124
Fig. 8.1: Replacements at the I and II Maintenance Level125
Tab. 8.1: Summary of the Corrective Maintenance Operations126
Appendix A: Battery Charger135
Note135
Appendix B: Antenna & Accessories137
Antenna (Puma T2-400, Puma T2-430, Puma T2-470)137
Fig. B.1: Antenna (PUMA T2-400, PUMA T2-430, PUMA T2-470)137
Tab. B.1: Antenna Characteristics (PUMA T2-400, PUMA T2-430)138
Tab. B.2: Antenna Characteristics (PUMA T2-470)138
Antenna (Puma T2-870)139
Fig. B.2: Antenna (PUMA T2-870)139
Tab. B.3: Antenna Characteristics (PUMA T2-870)139
Leather Case and Nylon Bag140
Belt Clip141
Ptt Microphone with Internal Speaker142
Fig. B.4: PTT Microphone with Internal Speaker142
Fig. B.5: Connector143
Tab. B.4: Microphone Characteristics143
Tab. B.5: Speaker Characteristics143
Fig. B.6: Electric Scheme of the PTT Microphone with Internal Speaker144
Tab. B.6: Pin Function144
Earphone for Ptt Microphone with Loudspeaker145
Fig. B.7: Earphone for PTT Microphone145
Tab. B.7: Earphone Characteristics145
Lapel Microphone Ka197/Ka297146
Fig. B.8: Lapel Microphone KA197/KA297146
Tab. B.8: KA197/KA297 Microphone Characteristics147
Tab. B.9: KA197/KA297 Earphone Characteristics147
Tab. B.10: Pin Functions147
Fig. B.9: Lapel Microphone Electric Scheme148
Appendix C: Vehicular Adapter149
Appendix D: Nicd, Nimh and Li-Ion Batteries151
Introduction151
D.1.1 Battery Identification151
Tab. D.1: BK Resistor Values151
Li-Ion Battery152
D.2.1 Mechanical Description152
Fig. D.1: Li-Ion Battery Package (Rear Side)152
Fig. D.2: Li-Ion Battery Package (Radio Side)152
Fig. D.3: Battery Identification Code153
D.2.2 Electrical Description154
D.2.3 Electrical Interface154
Tab. D.2: Li-Ion Battery (Technical Characteristics)154
Fig. D.4: Bottom Side Contacts155
Fig. D.5: Upper Side Contacts155
Battery Pack Layout and Protection Circuit156
Fig. D.6: Block Diagram of the Protection Circuit156
Tab. D.3: Electrical Characteristics156
Nicd & Nimh BATTERY158
Fig. D.7: 1800 Mah Nimh Battery158
Tab. D.4: Technical References158
D.4.1 Mechanical Description159
Fig. D.8: Instructions on the Pack159
Fig. D.9: Battery Identification Code159
D.4.2 Electrical Description160
D.4.3 Electrical Interfaces160
Fig. D.10: Instructions on the Paper Band160
Fig. D.11: Upper Side Battery Contacts160
D.4.4 Internal Scheme161
Fig. D.12161
Fig. D.12: Lower Side Battery Contacts161
Fig. D.13: Internal Circuitry of the Pack161

OTE PUMA T2 - Troubleshooting

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