Trimble R6 (RoHS) Service Manual

SERVICE MANUAL

F

Trimble R6 / R6 (RoHS)

GPS Receivers

P/N 60775-SVC, Revision B Jan 2008

SERVICE MANUAL

F

Release notice

This is the January 2008 release (Revision B) of the Trimble Trimble
R6 / R6 (RoHS) GPS Receivers Service Manual, part number 60775-

SVC. It applies to the Trimble R6 and R6 RoHS receivers.

Contacting Trimble Support

If you cannot find the information you need in this manual or in the
Trimble Service Provider Reference Manual (P/N 022480-068),
submit an inquiry to Trimble Support.

1. Go to www.trimble.com.

2. Click

3. Scroll to the bottom of the page that appears, and click the

4. Complete the Request Technical Support form that appears.

5. Click the

Legal Notices

© 2004–2007, Trimble Navigation Limited. All rights reserved.
Trimble, the Globe & Triangle logo, BlueCap, GPS Total Station,

and SiteVision are trademarks of Trimble Navigation Limited,
registered in the United States and in other countries.

AutoBase, CMR+, Maxwell, SiteNet, Survey Pro, Trimble Survey
Controller, TRIMCOMM, TRIMMARK, TRIMTALK, TSC1,
TSC2, TSCe, Zephyr, and Zephyr Geodetic are trademarks of
Trimble Navigation Limited.
The Bluetooth word mark and logos are owned by the Bluetooth
SIG, Inc. and any use of such marks by Trimble Navigation Limited
is under license.
Microsoft, Windows, and ActiveSync are either registered
trademarks or trademarks of Microsoft Corporation in the United
States and/or other countries.

All other trademarks are the property of their respective owners.

Disclaimer

Trimble Navigation Limited reserves the right to alter the
specification of this product and/or the content of this manual
without advance notification.

Notices

Class B Statement – Notice to Users. This equipment has been tested
and found to comply with the limits for a Class B digital device,
pursuant to Part 15 of the FCC rules. These limits are designed to
provide reasonable protection against harmful interference in a
residential installation. This equipment generates, uses, and can
radiate radio frequency energy and, if not installed and used in
accordance with the instructions, may cause harmful interference to
radio communication. However, there is no guarantee that
interference will not occur in a particular installation. If this
equipment does cause harmful interference to radio or television
reception, which can be determined by turning the equipment off and
on, the user is encouraged to try to correct the interference by one or
more of the following measures:

– Reorient or relocate the receiving antenna.
– Increase the separation between the equipment and the receiver.
– Connect the equipment into an outlet on a circuit different from

– Consult the dealer or an experienced radio/TV technician for help.
Changes and modifications not expressly approved by the

manufacturer or registrant of this equipment can void your authority
to operate this equipment under Federal Communications
Commission rules.

Support at the top of the screen.

submit an inquiry link.

Send button.

that to which the receiver is connected.

Trimble R6 / R6 (RoHS)

GPS Receivers

Europe

This product has been tested and found to comply with the
requirements for a Class B device pursuant to European
Council Directive 89/336/EEC on EMC, thereby
satisfying the requirements for CE Marking and sale
within the European Economic Area (EEA). Contains Infineon radio
module ROK 104001. These requirements are designed to provide
reasonable protection against harmful interference when the
equipment is operated in a residential or commercial environment.

Canada

This digital apparatus does not exceed the Class B limits for radio
noise emissions from digital apparatus as set out in the radio
interference regulations of the Canadian Department of
Communications.

Le présent appareil numérique n’émet pas de bruits radioélectriques
dépassant les limites applicables aux appareils numériques de Classe
B prescrites dans le règlement sur le brouillage radioélectrique édicté
par le Ministère des Communications du Canada.

Australia and New Zealand

This product conforms with the regulatory requirements of
the Australian Communications Authority (ACA) EMC
framework, thus satisfying the requirements for C-Tick
Marking and sale within Australia and New Zealand.

Taiwan – Battery Recycling Requirements

The product contains a removable Lithium-ion battery.
Taiwanese regulations require that waste batteries are
recycled.

Notice to Our European Union Customers

For product recycling instructions and more information,
please go to www.trimble.com/ev.shtml.

Recycling in Europe:
To recycle Trimble WEEE (Waste Electrical and Electronic
Equipment, products that run on electrical power.), Call +31

497 53 24 30, and ask for the “WEEE Associate”.
Or, mail a request for recycling instructions to:
Trimble Europe BV
c/o Menlo Worldwide Logistics
Meerheide 45
5521 DZ Eersel, NL

Declaration of Conformity

To view the Declaration of Conformity for this product:

1. Log in to the Partners website at http://partners.trimble.com.

2. In the panel on the left, click

3. Select the relevant file. It is in Adobe Portable Document Format
(PDF).

Restriction of Use of Certain Hazardous Substances in
Electrical and Electronic Equipment (RoHS)

This Trimble product complies in all material respects with
DIRECTIVE 2002/95/EC OF THE EUROPEAN PARLIAMENT
AND OF THE COUNCIL of 27 January 2003 on the restriction of
the use of certain hazardous substances in electrical and electronic
equipment (RoHS Directive) and Amendment 2005/618/EC filed
under C(2005) 3143, with exemptions for lead in solder pursuant
to Paragraph 7 of the Annex to the RoHS Directive applied.

Service.

P/N 60775-SVC, Revision B Jan 2008

Contents

F

1 General Information and Safety . . . . . . . . . . . . . . . . . . . . . . . 8

Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

Assumptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

Updating this manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

Related documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

Deciding what is serviceable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

Possible loss of warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Removing and replacing parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Warnings and Cautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Electrostatic Discharge (ESD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Setting up an ESD-protected workstation . . . . . . . . . . . . . . . . . . . . . . . . 12

Battery safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Rechargeable Lithium-ion batteries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Charging the Lithium-ion battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Disposing of the rechargeable Lithium-ion battery . . . . . . . . . . . . . . . . . . . 14

The RoHS initiative . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

What RoHS means to Trimble. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

What RoHS means to Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

2 Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

General specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Physical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Communications and data storage specifications . . . . . . . . . . . . . . . . . . . . . . . 20

3 Theory of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

The receiver generations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Key. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Non RoHS receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

RoHS receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

COCOM limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Environmental conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Avoiding electrical interference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Major circuit boards/assemblies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Bluetooth-I/O board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Radio door assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Processor board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Low Noise Amplifier (LNA) / Spirit antenna patch. . . . . . . . . . . . . . . . . . . 32

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Keypad assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Front panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Button functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

LED functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Memory storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Power input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Battery charging and storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Rechargeable Lithium-ion batteries . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Charging the battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Power output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Mounting the receiver on a range pole. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Other system components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Radios . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Application files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Contents

4 Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Connections and ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Receiver connection pinouts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Port 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Port 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Power/Serial data cable port pinouts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

5 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

Test when received . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

Required service software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

Contact report information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

Possible failures and suggested solutions . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

LED conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

External symptoms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

Power symptoms. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

Satellites and signals symptoms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

Communications symptoms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

Radio symptoms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

6 Maintenance and Repair . . . . . . . . . . . . . . . . . . . . . . . . . . 57

Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

Consumables. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

Use and care . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

Underside of the receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

Disassembling the unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

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Step 1. Removing the battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

Step 2. Removing the radio module . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

Step 3. Removing the radome . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

Step 4. Removing the antenna patch. . . . . . . . . . . . . . . . . . . . . . . . . . . 64

Step 5. Removing the processor board . . . . . . . . . . . . . . . . . . . . . . . . . 67

Step 6. Removing the endoskeleton . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

Step 7. Removing the keypad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70

Step 8. Removing the Bluetooth-I/O board . . . . . . . . . . . . . . . . . . . . . . . 71

Reassembling the unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

Step 1. Replacing the keypad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

Step 2. Replacing the Bluetooth-I/O board . . . . . . . . . . . . . . . . . . . . . . . 73

Step 3. Replacing the endoskeleton . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

Step 4. Replacing the processor board. . . . . . . . . . . . . . . . . . . . . . . . . . 77

Step 5. Replacing the antenna patch. . . . . . . . . . . . . . . . . . . . . . . . . . . 78

Step 6. Replacing the radome . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81

Step 7. Replacing the radio door assembly . . . . . . . . . . . . . . . . . . . . . . . 81

Step 8. Replacing the battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82

Part replacement actions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82

Checking the unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

Contents

Radio Door Assemblies . . . . . . . . . . . . . . . . . . . . . . . . . . 85

Radio door compatibility and shielding methods . . . . . . . . . . . . . . . . . . . . . . . 85

Compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

Shielding methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86

Integrated GSM radio: Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89

GSM door activation requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . 90

Charging for the GSM door installation/activation . . . . . . . . . . . . . . . . . . . 90

Installing a GSM door: Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90

Repairing and installing the radio door assemblies . . . . . . . . . . . . . . . . . . . . . . 93

Tools required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93

Special configuration or other requirements . . . . . . . . . . . . . . . . . . . . . . 93

Disassembling the receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94

Assembling the receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94

Installing the SIM card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94

Installing a GSM cellular or UHF Transmit door assembly. . . . . . . . . . . . . . . 95

Testing GSM Cellular . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97

Registering the Trimble R6 Bluetooth device with the controller . . . . . . . . . . . 97

Connecting to the receiver and getting CSQ . . . . . . . . . . . . . . . . . . . . . . 97

Setting up a survey style. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97

Creating a new job to make a call from the receiver through the controller . . . . . . 98

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The GSMcheck utility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98

Running the test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98

Supporting information: Test flow . . . . . . . . . . . . . . . . . . . . . . . . . . 100

Testing the receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103

Part Replacement Actions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103

Contents

7 Assembly Drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104

List of drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104

Trimble R6 receiver (RoHS and non-RoHS) . . . . . . . . . . . . . . . . . . . . . 104

Trimble R6 receiver (non-RoHS) . . . . . . . . . . . . . . . . . . . . . . . . . . . 104

Trimble R6 receiver (RoHS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104

Drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104

8 Adjustment and Verification . . . . . . . . . . . . . . . . . . . . . . . . 114

Test before shipping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115

Inspection test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115

Seal integrity test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115

Power Input test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116

High and Low Voltage Input test (all) . . . . . . . . . . . . . . . . . . . . . . . . . 116

Operation test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119

LED Operation test (all) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119

Power Button Operation test (all) . . . . . . . . . . . . . . . . . . . . . . . . . . . 119

Bluetooth Operation test and Radio Interface test . . . . . . . . . . . . . . . . . . 120

Memory test. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121

Satellite Acquisition test. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121

Configuration Retrieval test and Office Computer Communications test - Lemo port (all)123

Cable Communications test with a controller . . . . . . . . . . . . . . . . . . . . . 124

Office computer communications test, DB-9 serial port (All) . . . . . . . . . . . . 124

File Upload/Download test (all) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124

System test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125

Purpose of the test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125

Components required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126

Setting up the test components . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127

Setting up the base. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127

Starting the base . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128

Setting up the rover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129

Starting the rover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129

Test range qualification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130

WINTXRX program. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131

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9 Service Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132

Downloading the software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132

GPS Configurator utility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132

Configuration Toolbox utility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133

Data Transfer utility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136

Supervisor version of the WinFlash utility . . . . . . . . . . . . . . . . . . . . . . . . . . 136

Supervisor version of the WinFlash utility and new firmware . . . . . . . . . . . . 137

Available WinFlash operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138

Installing a transmit frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141

Receiver configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154

WinTXRX Radio Receive utility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157

WinPan utility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157

10 Replacement Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . 166

Referenced assembly drawings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 166

Required information when ordering parts. . . . . . . . . . . . . . . . . . . . . . . . . . 166

Naming conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167

Product short name/description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167

Parts not listed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169

Parts list. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169

A Recommended Repair Times . . . . . . . . . . . . . . . . . . . . . . . 175

B Seal Integrity Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 176

Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 176

Assembling the Trimble Seal Integrity Kit. . . . . . . . . . . . . . . . . . . . . . . . . . 176

Hardware requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177

Installing the software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177

Setting up communication. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177

Troubleshooting communication . . . . . . . . . . . . . . . . . . . . . . . . . . . 178

Testing vacuum . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 179

Examples of vacuum test results . . . . . . . . . . . . . . . . . . . . . . . . . . . 181

Testing pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 182

C RoHS Service Bulletin . . . . . . . . . . . . . . . . . . . . . . . . . . . 184

Restriction of hazardous substances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 184

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Service Manual

Chapter 1

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General Information and Safety

General Information and Safety 1

Q Introduction

Q Assumptions

Q Updating this manual

Q Related documentation

Q Deciding what is serviceable

Q Possible loss of warranty

Q Removing and replacing parts

Q Warnings and Cautions

Q Electrostatic Discharge (ESD)

Q Battery safety

Q Rechargeable Lithium-ion batteries

Q The RoHS initiative

This manual is a reference guide for service personnel at authorized Trimble Service
Providers or Trimble Service Centers. It describes how to correctly service, maintain, and
repair the new Trimble

®

R6 and Trimble R6 (RoHS compliant) GPS receivers.

Note – In this manual, “Trimble R6 receiver” or “the receiver” refers to both the RoHS

compliant and the non-compliant versions. If information applies to only one of these
receivers, this is clearly stated as “RoHS” or “non-RoHS”.

Introduction

This section describes the Service Manual for the Trimble R6 / R6 RoHS receivers.

• RoHS compliance is described, along with its relevance in Europe and China.

• RoHS compliant parts are described, along with when they can and can not be used.

• The part list shows the new parts and the older parts. The list specifies whether or
not the new part is fully backward compatible.

Assumptions

This manual assumes that you have attended the Trimble service training course for the
Trimble R6 receivers. It also assumes that you have appropriate knowledge and
understanding of:

• mechanical design, electronic theory, and general service procedures

• basic electronic test equipment such as volt-ohmmeters, oscilloscopes, frequency
generators, and power supplies

Trimble R6 / R6 (RoHS) GPS Receivers
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Chapter 1

F

• the operating system and software for the computer system that you use

Updating this manual

Photographs, illustrations, specifications, and other details in this manual were up to date
when the manual was released in December 2007. Any changes that may be needed will
be issued as supplementary or replacement pages, a Service Bulletin, other service
information, or as a new revision of this manual.

B

Related documentation

Tip – To keep a printed manual up to date, print any updates that you receive and insert them

at the relevant point in the manual.

You can download the latest version of this manual, as well as all Service Bulletins, User
Guides, and any Declaration of Conformity relevant to the receivers from the Trimble
Partners website. The files are in Adobe Portable Document Format (PDF).

General Information and Safety

Note – Read all relevant Service Bulletins before you repair or service this receiver.

To download a document for a receiver:

1. Go to the Trimble Partners website at http://partners.trimble.com.

2. Select Land Survey.

3. Enter your username and password and then click

4. On the left, click

5. From the list, select the required product (for example

6. Select Technical Support / Documentation.

7. Select the item that you want to download.

Info by Subject.

Deciding what is serviceable

The assembly drawings in this manual show the relationship between all assemblies that
are considered serviceable. Serviceable assemblies are defined as assemblies that can be
repaired by authorized Trimble Service Providers or at Trimble Service Center level. The
following factors determine whether an assembly is serviceable:

• The tools required to complete the repair.

Login.

Trimble R6).

• The time it takes to complete the work.

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Chapter 1

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Possible loss of warranty

If a Trimble product is not serviced properly, or if it is repaired by someone other than an
authorized technician, the manufacturer’s warranty on the product can become void. To
prevent loss of cover, always comply exactly with the instructions in this manual.

Removing and replacing parts

Note – The torque specifications, adhesives, and procedures specified in this manual are

essential to the proper operation of the GPS receiver.

To disassemble and reassemble the GPS receiver:

1. Consult the diagrams in Chapter 7, Assembly Drawings.

2. Carefully follow the procedures described in Chapter 6, Maintenance and Repair.
Apply the exact adhesives as specified, and torque only to the values indicated.

If you need to replace a part, see Chapter 10, Replacement Parts List.

General Information and Safety

Warnings and Cautions

Note – An absence of specific alerts does not mean that there are no safety risks involved.

Always follow the instructions that accompany a Warning or Caution. The information
they provide is intended to minimize the risk of personal injury and/or damage to the
equipment. In particular, observe safety instructions that are presented in the following
formats:

C

C

Warning – A Warning alerts you to a likely risk of serious injury to your person and/or damage
to the equipment. A warning identifies the nature of the risk and the extent of possible injury
and/or damage. It also describes how to protect yourself and/or the equipment from this risk.
Warnings that appear in the text are repeated at the front of the manual.

Caution – A Caution alerts you to a possible risk of damage to the equipment and/or loss of
data. A Caution describes how to protect the equipment and/or data from this risk.

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Chapter 1

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Electrostatic Discharge (ESD)

Note – For detailed information about ESD, refer to the Trimble Service Provider

Reference Manual (P/N 022480-068).

The Trimble R6 receivers were constructed in an ESD-protected environment. Most of the
semiconductor devices in the instrument are susceptible to ESD damage.

ESD is generated in many ways.
separation of materials, or the normal motion of people working with the device.
Depending on the magnitude of the charge, device substrates can be punctured or
destroyed by contact with, or by mere proximity to, a static charge. The result can be
immediate destruction, early failure of the device, or degradation of device performance.

To prevent static damage or destruction:

• Take adequate precautions when you handle or service equipment that contains
static-sensitive devices.

• Only attempt to service the circuitry in a static-sensitive device if you are
thoroughly familiar with industry-accepted techniques for handling such devices.

• Always take adequate measures to prevent the buildup of static charge on work
surfaces and on persons handling the GPS receiver.

General Information and Safety

For example, it can be the result of simple contact, the

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Setting up an ESD-protected workstation

1. Unroll the ESD field service workstation kit and place it, pocket side up, on the
workbench.

General Information and Safety

Electrical earth ground
connection

Mat grounding cable

Dissipative mat

Pockets

Figure 1.1 ESD workstation setup

2. Remove the mat grounding cable from the mat pocket.

3. Snap the end of the mat grounding cable onto the common point ground connection
on the mat.

4. Connect the other end of the cable to an electrical earth ground, such as a third wire
utility ground, a cold water pipe, or a ground rod.

5. Use the common point ground connection to plug the wrist strap cable into the mat
grounding cable.

Note – Put on the wrist strap. The wrist strap must fit snugly. To adjust it, unclasp the

buckle latch, adjust the size, and re-clasp the latch.

It is now safe to handle components and printed circuit assemblies on the mat.

Snap-on common point
ground connection

Wrist strap cable

Wrist strap

Note – Always repackage all ESD-sensitive components before you disconnect the wrist

strap.

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Chapter 1

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Battery safety

C

C

C

C

C

Warning – Use only the specified battery charger to charge the battery pack. Other battery
chargers may cause the battery pack to catch alight or to rupture.

Warning – Do not cover the battery charger while the battery pack is being recharged. The
charger must be able to dissipate heat adequately. Coverings such as blankets or clothing may
cause the charger to overheat. Overheating may damage the charger and cause a fire.

Warning – Do not recharge the battery pack in a humid or dusty place, in direct sunlight, or
near a heat source. Do not recharge the battery pack when it is wet. If you do, you may receive
electric shocks or burns, or the battery pack may overheat or catch alight.

Warning – Never burn or heat the battery. Doing so may cause the battery to leak or rupture. A
leaking or ruptured battery can cause serious injury.

Warning – Before you store the battery pack or battery charger, cover the contact points with
insulation tape. If you do not cover the contact points, the battery pack or charger may short­circuit, causing fire, burns, or damage to the instrument.

General Information and Safety

C

C

Warning – Do not short-circuit the contacts in the battery pack. The battery pack has an auto­reset circuit breaker, but short circuits may cause the battery pack to catch alight or to burn you.

Caution – Handle, charge, and dispose of the battery in this unit only in strict accordance with
the instructions that are provided in the product documentation. Use only the recommended
battery charger and be sure to follow the manufacturer’s instructions exactly. Failure to follow
those instructions may result in a fire and/or burns and other injuries.

Rechargeable Lithium-ion batteries

The Trimble R6 receivers use a rechargeable Lithium-ion battery as the primary power
source.

C

Warning – Do not damage the battery. A damaged battery can cause an explosion or fire, and
can result in personal injury and/or property damage. To prevent injury or damage:
– Do not use or charge the battery if it appears to be damaged. Signs of damage include, but
are not limited to, discoloration, warping, and leaking battery fluid.
– Do not expose the battery to fire, high temperature, or direct sunlight.
– Do not immerse the battery in water.
– Do not use or store the battery inside a vehicle during hot weather.
– Do not drop or puncture the battery.
– Do not open the battery or short-circuit its contacts.

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Chapter 1

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C

C

Warning – Avoid contact with the battery if it appears to be leaking. Battery fluid is corrosive,
and contact with it can result in personal injury and/or property damage.To prevent injury or
damage:
– If the battery leaks, avoid contact with the battery fluid.
– If battery fluid gets into your eyes, immediately rinse your eyes with clean water and seek
medical attention. Do not rub your eyes!
– If battery fluid gets onto your skin or clothing, immediately use clean water to wash off the
battery fluid.

Warning – Charge and use the battery only in strict accordance with the instructions. Charging
or using the battery in unauthorized equipment can cause an explosion or fire, and can result in
personal injury and/or equipment damage. To prevent injury or damage:
– Do not charge or use the battery if it appears to be damaged or leaking.
– Charge the battery only in a Trimble product that is specified to charge it. Be sure to follow all
instructions that are provided with the battery charger.
– Discontinue charging a battery that gives off extreme heat or a burning odor.
– Use the battery only in Trimble equipment that is specified to use it.
– Use the battery only for its intended use and according to the instructions in the product
documentation.

General Information and Safety

Charging the Lithium-ion battery

The battery is supplied partially charged. Charge the battery completely before using it for
the first time. If the battery has been stored for longer than three months, charge it before
use. To ensure a full charge and to optimize the battery life, leave the batteries to charge
overnight.

Disposing of the rechargeable Lithium-ion battery

Discharge the battery before disposing of it. When disposing of the battery, be sure to do
so in an environmentally sensitive manner. Adhere to any local and national regulations
concerning battery disposal or recycling.

The RoHS initiative

In July 2006, the European Union restricted the hazardous material content within new
products being sold. Primarily this was an effort to reduce lead within products. Many
parts within electronic devices contain lead, such as solder on PC boards or within IC's.
After the RoHS implementation, manufacturers were required to use alternate materials
and soldering methods. Products that were sold before the July 2006 date, have been
grand-fathered in, and are not subject to RoHS. Service parts specifically for these
products containing lead are permitted as well. Only newly created products intended for
sale after the July 2006 date are subject to RoHS.

Trimble R6 / R6 (RoHS) GPS Receivers
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What RoHS means to Trimble

Trimble has made the commitment to create all new GPS products as lead free and
certified RoHS compliant. This includes older products which have been selling prior to
RoHS. You will start to see many of the older products converted into RoHS compliant
versions. Even though these are older products and it is not required, it is an extremely
worthwhile endeavor.

What RoHS means to Service

There are several very complex issues around the RoHS initiative. The Service Provider
must understand and follow these rules:

• Only lead free solder may be used on RoHS compliant products. Most GPS Service
Providers have been using Silver solder for several years (AG/SN). Make sure you
ONLY use Silver solder for ANY GPS products.

• Parts meant for non RoHS products must NOT be used on RoHS products. Use only
those parts shown in the part list for a specific product.

• Parts meant for a RoHS product may not be compatible with a non RoHS product.
Use only those parts shown in the part list for a specific product. If the part works in
both products, the part list will state that.

• Radio doors, radio boards, and Bluetooth
must also pass type approval. Some parts may not be used in other products due to
non compliance with Country regulations. Use only those parts shown in the part
list for a specific product.

General Information and Safety

®

boards pose special problems as they

• Within the part lists, the general rule to identify whether a product is RoHS
compliant or not is to look at the short name. For instance, NetRS, R6, and R8GNSS
are non-compliant products. NetRSR, R6R, and R8GNSSR are RoHS compliant
(shown by the last letter R).

• It is highly recommended that Service Providers have separate inventory location
for lead and lead free parts. This might mean a different cabinet or shelf. It is also
highly recommended to have RoHS labels available to attach to the individual part.
Green dots are a good solution and will help to quickly identify RoHS compliant
parts.

• RoHS service parts will be a phase in process for non RoHS products. Use the
original part defined for the non RoHS product first. Once these parts are consumed,
the new RoHS part will phase in as long as it is FULLY backwards compatible. The
old part numbers will then be inactivated. Please, ALWAYS refer to the latest part
list.

• RoHS compliant PC boards may be identified by these symbols:

• In mid 2007, China will launch its own RoHS initiative. The products that have
been certified as RoHS compliant will comply with specific country regulations.

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e1

Chapter 1

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• Service parts are defined as:

– SPR (Service Part Red) which is allowed in the EU to service an existing

product

– SPG (Service Part Green) which conforms to RoHS.

For more information, see Appendix C, RoHS Service Bulletin.

General Information and Safety

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Chapter 2

F

Specifications

Specifications 2

Q General specifications

Q Physical specifications

Q Electrical specifications

Q Communications and data storage specifications

This chapter contains the specifications for the Trimble R6 / R6 (RoHS) GPS receivers.
The specifications are extracted from the relevant receiver Data Sheet.

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Specifications

General specifications

Feature Specification

Keyboard and display On/Off key for one button startup using AutoBase™ technology

LED indicators For satellite tracking, radio link reception, and power monitoring

Receiver type Fully integrated “Smart” GPS antenna

Physical specifications

Feature Specification

Dimensions (WxH) 19 cm (7.5 in) x 11.5 cm (4.4 in) including connectors

Weight 1.35 kg (2.97 lb) with internal battery, internal radio, standard UHF antenna

3.71 kg (8.18 lbs) entire RTK rover including batteries, range pole, controller, and
bracket

Temperature

Operating

Storage

Humidity 100%, condensing

Water resistance IPX7 for submersion to depth of 1 m (3.28 ft)

Shock and vibration

Shock, non operating

Shock, operating

Vibration

Measurements Trimble R-Track technology for GLONASS support

1

–40 °C to +65 °C (–40 °F to +149 °F)

–40 °C to +75 °C (–40 °F to +167 °F)

Tested and meets the following environmental standards:

Designed to survive a 2 m (6.6 ft) pole drop onto concrete
MIL-STD-810F, Fig.514.5C-17

To 40 G, 10 msec, saw-tooth

MIL-STD-810F, FIG.514.5C-1

Advanced Trimble Maxwell

High-precision multiple correlator for GNSS pseudo-range measurements

Unfiltered, unsmoothed pseudo-range measurements data for low noise, low multipath
error, low time domain correlation, and high dynamic response

Very low noise GNSS carrier phase measurements with <1 mm precision in a 1 Hz
bandwidth

Proven Trimble low elevation tracking technology

Signal-to-Noise ratios reported in dB-Hz

Proven Trimble low-elevation tracking technology

72 Channels:

– GPS L1 C/A Code, L1/L2 Full Cycle Carrier

– GLONASS L1 C/A Code, L1 P Code, L2 P Code, L1/L2 Full Cycle Carrier

– SBAS WAAS / EGNOS support

™

Custom GPS chip

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Chapter 2

F

Feature Specification

Code differential GPS
positioning

Horizontal accuracy

Vertical accuracy

WAAS differential
positioning accuracy

Static and FastStatic GPS
Surveying

Horizontal

Verti cal

Kinematic surveying

Horizontal

Verti cal

Initialization time

Initialization reliability

1

The receiver will operate normally to –40 °C, but the Bluetooth module and internal batteries are rated to –20 °C.

2

Accuracy and reliability may be subject to anomalies such as multipath, obstructions, satellite geometry, and atmospheric conditions.

Always follow recommended practices.

3

Depends on WAAS/EGNOS/GLONASS system performance.

4

May be affected by atmospheric conditions, signal multipath, and satellite geometry. Initialization reliability is continuously monitored

to ensure highest quality

2

±(0.25 m + 1 ppm) RMS, ± (9.84 in + 1 ppm) RMS

±(0.50 m + 1 ppm) RMS, ± (19.68 in + 1 ppm) RMS

Typically <5 m (16.40 ft) 3D RMS

3

2

±(5 m + 0.5 ppm) RMS, ± (196.7 in + 1 ppm) RMS

±(5 m + 1 ppm) RMS, ± (196.7 in + 1 ppm) RMS

2

±(10 mm + 1 ppm) RMS, ± (0.38 in +1 ppm) RMS

±(20 mm + 1 ppm) RMS, ± (0.78 in +1 ppm) RMS

<25-30 seconds typical

4

>99.9% typical

Specifications

Note – Glonass signal reception is optional.

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Chapter 2

F

Specifications

Electrical specifications

Feature Specification

Power, internal 11 to 28 V DC external power input with over-voltage protection on Port 1 (7-pin

Lemo)

Battery Rechargeable, removable 7.4 V, 2.4 Ah Lithium-ion battery in internal battery

compartment

Power consumption <3.1 W, in RTK mode with internal radio

Operating time on internal
battery

450 MHz

450 MHz

GSM /GPRS

Certification Class B Part 15, 22, 24 FCC certification, 850 / 1900 MHz.

Receive only: 5.3 hours; varies with temperature

Receive and transmit: 3.5 hours; varies with temperature and wireless data rate

3.8 hours; varies with temperature

Class 10 GSM/GPRS module

CE mark approval

C-tick approval

Communications and data storage specifications

Feature Specification

Communications

Port 1 (7-pin Lemo)

Port 2 (DSub 9-pin)

Bluetooth

Integrated radios Fully integrated, fully sealed internal 450 MHz, TX, RX, or Tx/Rx

450 MHz receiver/transmitter radio power
output

External GSM/GPRS, cellular phone
support

Receiver position update rate 1 Hz, 2 Hz, 5 Hz, and 10 Hz positioning

Data storage (11 MB internal memory) 302 hours of raw observables based on recording data from 6

Data Input and Output CMRII, CMR+

Outputs NMEA, GSOF, and RT17

Carrier Supports BINEX and smoothed carrier

1

Bluetooth type approvals are country specific. Contact your local Trimble office or representative for more information.

2

Varies with terrain and operating conditions.

3-wire serial (7-pin Lemo)

Full RS-232 serial (DSub, 9-pin)

Fully integrated, fully sealed 2.4 GHz Bluetooth

Fully integrated, fully sealed internal GSM/GPRS option (R8 GNSS
receiver only)

Transmit power: 0.5 W

2

Range

Supported for direct dial and Internet-based VRS correction streams

External cellphone support for GSM/GPRS/CDPD modems for RTK
and VRS operations

satellites at 15 second intervals

: 3–5 km typical; 10 km optimal

™, RTCM 2.1, RTCM 2.3, RTCM 3.0

1

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Chapter 3

F

Theory of Operation

Theory of Operation 3

Q The receiver generations

Q Features

Q COCOM limits

Q Environmental conditions

Q Operating conditions

Q Avoiding electrical interference

Q Major circuit boards/assemblies

Q Front panel

Q Memory storage

Q Power input

Q Power output

Q Power output

Q Mounting the receiver on a range pole.

Q Other system components

This chapter describes the Trimble R6 / R6 (RoHS) receiver for GPS surveying
applications. The receiver incorporates a GPS antenna, receiver, internal radio, and battery
in a rugged lightweight unit that is ideally suited as an all-on-the-pole RTK (Real-Time
Kinematic) rover.

Three LEDs show the status of satellite tracking, radio reception, and power. Bluetooth®
wireless technology provides cable-free communications between the receiver and the
controller. The receiver provides 72 channels for L1/L2 GPS and L1/L2 GLONASS
(optional), and WAAS/EGNOS support. For details of received signal options for each
receiver, see The receiver generations, page 22. Raw or positional data can be stored
internally or to the handheld controller for RTK OTF or postprocessed applications.

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Theory of Operation

The receiver generations

The tables show four main categories of information:

• Product. Product part number and description, sales status, common name used in
this manual, and RoHS compliance.

Note – All products shown below are current.

• GNSS (Global Navigation Satellite System). Signals that can be used by the
receiver.

• Radio. Capabilities for the internal radio and the service part number for the door
assembly.

• Markings. Physical differences between the receivers that help identify them

Key

Column Value Meaning

Tx Op Transmit-capable; enabling the TX function is an upgrade

Color B Blue

Color LG Light grey

Color D Dark blue

RoHS compliant N

Y

GLNSS Op Optional

No

Yes

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Chapter 3

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Non RoHS receiver

Product GNSS Internal

P/N

60275-00 R6

60275-62 R6

60275-64 R6

60275-66 R6

60275-70 R6 Rest of World

60275-71 R6 US cellular

Description

no radio

410–420 MHz
TX-capable RX
radio

430–450 MHz
TX-capable RX
radio

450–470 MHz
TX-capable RX
radio

cellular radio

radio

Theory of Operation

Markings

radio

Common

name

RoHS compliant

L1

L2

WAAS

GLNS

RX

TX

R6 N 333Op x x 57880-00S D LG

R6 N 3 3 3 Op 3 Op 57880-62S or

R6 N 333Op 3 Op 57880-64S

R6 N 3 3 3 Op 3 Op 57880-66S or

R6 N 333Op 33 57880-70S D LG

R6 N 3 3 3 Op 3 3 57880-71S D LG

Radio Bd /

Door P/N

58707-62S

or
58707-64S

58707-66S

(see

Figure 3.1)

Bumper Color

D LG

DLG

D LG

Housing

color

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Chapter 3

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RoHS receiver

Product GNSS Internal

P/N

60775-00 R6 RoHS

60775-62 R6 RoHS

60775-64 R6 RoHS

60775-66 R6 RoHS

60775-70 R6 RoHS GSM

60775-71 R6 RoHS GSM

Description

no radio

410–420 MHz
TX-capable RX
radio

430–450 MHz
TX-capable RX
radio

450–470 MHz
TX-capable RX
radio

Rest of World
cellular radio

US cellular radio

Theory of Operation

Markings

radio

Common

name

R6R Y 333Op x x 59400-00S D LG

R6R Y 3 3 3 Op 3 Op 59400-62S or

R6R Y 333Op 3 Op 59400-64S or

R6R Y 3 3 3 Op 3 Op 59400-66S or

R6R Y 333Op 33 59400-70S D LG

R6R Y 3 3 3 Op 3 3 59400-71S D LG

RoHS compliant

L1

L2

WAAS

GLNS

RX

TX

Radio Bd /

Door P/N

64235-62S

64235-64S

64235-66S

(see

Figure 3.1)

Bumper

color

D LG

DLG

D LG

Housing

color

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Theory of Operation

Housing color

Bumper color

Housing

Figure 3.1 Location of markings

Features

The receiver provides the following features:

• Centimeter-accuracy, real-time positioning with RTK/OTF data, up to 10 Hz
position updates

• Submeter-accuracy, real-time positioning using pseudo range corrections

• Adaptive dual-frequency RTK engine

• GLONASS capability

• WAAS/EGNOS capability

• 11 MB internal memory

• Automatic OTF (On-The-Fly) initialization while moving

• Single Lithium-ion rechargeable battery

• Cable-free Bluetooth communications with the Trimble Attachable Control Unit
(ACU), TSC2

Label

®

controller, TCU, or TSCe™ controller with BlueCap® module

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• Two RS-232 serial ports for (one Lemo and one DB-9):

–NMEA output

– RTCM SC-104 input

– Trimble format (CMR and CMR+) input

• One TNC port for connecting to a radio antenna

COCOM limits

The U.S. Department of Commerce requires that all exportable GPS products contain
performance limitations so that they cannot be used in a manner that could threaten the
security of the United States. The following limitations are implemented on the
Trimble R6 GPS receiver:

• Immediate access to satellite measurements and navigation results is disabled when
the receiver's velocity is computed to be greater than 1000 knots, or its altitude is
computed to be above 18,000 meters.

Theory of Operation

• The receiver continuously resets until the COCOM situation is cleared.

Environmental conditions

Although the receiver has a waterproof housing, reasonable care should be taken to protect
the unit. Avoid exposure to extreme environmental conditions, including:

• Water immersion

• Heat greater than 65 °C (149 °F)

• Cold less than -40 °C (-40 °F)

• Corrosive fluids and gases

Operating conditions

The receiver is designed to withstand the rough treatment that typically occurs in the field.
However, the receiver is a high-precision electronic instrument and should be treated with
reasonable care.

C

Warning – Operating or storing the receiver outside the specified temperature range can
damage it. See Chapter 2, Specifications.

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High-power signals from a nearby radio or radar transmitter can overwhelm the receiver
circuits. This does not harm the instrument, but it can prevent the receiver electronics from
functioning correctly. Avoid using the receiver within 400 meters of powerful radar,
television, or other transmitters. Low-power transmitters, such as those used in cellular
phones and two-way radios, do not normally interfere with receiver operations.

Avoiding electrical interference

Avoid the following sources of electrical and magnetic noise:

• Gasoline engines (spark plugs)

• Televisions and office computer monitors

• Alternators and generators

• Electric motors

• Equipment with DC-to-AC converters

• Fluorescent lights

Theory of Operation

• Switching power supplies

Major circuit boards/assemblies

Although the receiver has 11 MB of internal data memory, it is the controller (TCU or
TSC2) that should be used as the primary data storage for RTK survey styles.

Bluetooth technology offers a cable-free operation when epoch intervals are set to 1 per 5
seconds or longer. If the epoch interval is set to a faster rate (for example, 1 per second),
the receiver must be cabled to the controller. The range of Bluetooth communications is
about 5 meters (15 feet) depending on external noise or interference levels. In some cases,
interference from several Bluetooth capable device in close proximity can cause this
distance to decrease. Bluetooth technology is a cable-free system, not a long distance
remote control system.

The receiver contains the following five major circuit boards/assemblies:

• Bluetooth-I/O board, page 28

• Radio door assembly, page 29

• Processor board, page 31

• Low Noise Amplifier (LNA) / Spirit antenna patch, page 32

• Keypad assembly, page 32

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Bluetooth-I/O board

You can replace this board (P/N 55155-10S RoHS and P/N 55155-00S non-RoHS), which
has the following properties and features:

• Port 2 (RS-232 port through a DB-9 connector). Allows data communications and
external sensor input or output.

• Port 1 (Lemo-style 7 female connector). Allows data I/O operations. This is the
primary port between the receiver and the controller (TCU or TSC2) for cable type
operations. It is also the port used to upgrade firmware or options within the
receiver. Connecting the receiver to an office computer uses the standard survey
download cable (P/N 32345) and AC adaptor (P/N 48800-00 or 30413).

Note – Newer cables and AC adapters are available and are RoHS compatible. However,

P/N 55155-10S is not backward compatible for use in the Trimble R6 receiver. Trimble
will not assume any liability for a third-party servicer who uses incorrect parts for a
repair.

• Bluetooth TX/RX wireless communications system. Sends and receives data
between the receiver and the controller (ACU, TCU, TSC2, or the TSCe with
BlueCap module). Includes the TX/RX antenna for Bluetooth. The figure on

page 58 shows the radiation area. Other electronic equipment in use nearby may

interfere with the communications link. Do not add large metallic labels to this area.
The Bluetooth primary communications frequency is 2.4 Ghz and is allowed in
most countries.

Theory of Operation

C

• Interface connection between the keypad cable and the processor board.

• Port 1 and 2 protection circuitry (identical to that in the 5800 GPS receiver). A PTC
takes a sample of current supplied. If the current is too high (for example, in
over-voltage, shorted, or reverse polarity conditions), the device heats up rapidly
and causes a crowbar action to shut off supplied power. Remove the power source
and correct the problem. The unit automatically resets as the temperature of the PTC
decreases to normal.

Caution – The PTC is always in circuit and can withstand a maximum of 35 VDC. If you
connect a higher voltage, the PTC will be destroyed and will not protect the receiver. The PTC
is extremely useful in that it does not offer a voltage drop like a diode. This is especially
important when the primary power source is a battery.

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Radio door assembly

A radio door assembly (P/N 57880-XXS, 59400-XXS, 58707-XXS, or 64235-XXS) is
present only in radio-equipped versions of the receiver.

• For the Trimble R6 receiver (non-RoHS), use only P/N 57880-XXS or
P/N 58707-XXS.

• For the Trimble R6 receiver (RoHS), use only P/N 59400-XXS or P/N 64235-XXS.

Do not interchange radios between receivers.

There are no serviceable parts in a radio door, which must be replaced as an assembly. A
few external repairs (for example, the dustcap and the labels) are possible.

In Receive mode, the radio door assembly receives correction information from a
transmission source, converts the information into a defined digital format, and sends the
information to the processor board. The user can select which frequency, channel spacing,
baud rate, and packet type the radio door assembly receives, in the configuration setup.

In Transmit mode (if available), the correction data string is sent from the processor board
to the transmitter for broadcast. The radio transmitter generates the carrier frequency and
then modulates this in a packet format for broadcast.

Theory of Operation

The customer can select a frequency defined in the transmit frequency list. The customer
can also modify any of the receive frequencies, but is not allowed to change the transmit
frequencies.

The Service Provider can create a file of customer-specified frequencies to be installed by
the customer, and can also directly change the transmit frequencies of a locally-connected
GPS receiver.

Each version of the UHF radio door assembly has a frequency range of 20 MHz.

Versi on Frequency range

-62 410–430 MHz

-64 430–450 MHz

-66 450–470 MHz

The highest frequency of one version is the same as the lowest frequency of the next.
Consequently, if you select the same channel spacing for both, you can use a version -62
radio door assembly with 430 MHz selected in place of a version -64 radio door assembly
with 430 MHz selected, or a version -64 radio door assembly with 450 MHz selected in
place of a version -66 radio door assembly with 450 MHz selected.

The radio door assemblies are transmit-capable, although this function is considered an
upgrade. The radio door assemblies:

• are compatible with the TRIMMARK™ 3, High Power Base, PDL450, SiteNet450,
and any of the TX/RX radios in the older R8, R7, 5800, and 5700 receivers

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• may have compatibility issues with an older radio, such as a 4700, 4800, or
TRIMMARK 2e radio

• are not compatible with a TRIMMARK 1 or TRIMMARK 2 radio

Changing the version

Trimble does not recommend that a customer or a Service Provider changes from one
version of radio door assembly to another, for the following reasons:

• The internal connector on the radio is not intended for multiple insertions or
extractions. It will break.

• The seal integrity of the whole GPS receiver is compromised when the radio is
removed. A customer does not have the facilities to test seal integrity.

• Trimble has no way of knowing which radio version is being used for a specific
product serial number (SN). This leads to confusion and mistakes, and the very real
possibility of the warranty being voided.

• If the unit is outside of warranty, the customer can purchase another radio, which
must be installed by the Service Provider. There are hardware limitations to this, so
be very careful, especially with the GSM and 900 MHZ doors.

Theory of Operation

C

Versi on Details

-70 and -71 These are GSM radios, and each version operates in a specific region. The radio door assembly

-6X These radios can transmit correction information at 0.5 W. Data is not streamed from the external

53620-XXS Radio door assemblies in this series are not compatible with Trimble R6, Trimble R8 GNSS, or

Caution – Because of installation problems and country regulation issues, Trimble does not
sell radio doors to end users. Trained Service Providers must comply with country regulations
and install the correct radio only in defined and accepted receivers. Installing a radio in a non
specified GPS product or device voids any warranty of the radio and of the GPS product. It also
subjects the Service Provider to penalties set forth by various government agencies. Trimble
shall assume no liability for radios used in non-authorized products.

The key features of each version of the radio door assembly are shown below.

• For the Trimble receiver R6 (non-RoHS), use only P/N 57880-XXS or
P/N 58707-XXS.

• For the Trimble R6 receiver (RoHS), use only P/N 59400-XXS or P/N 64235-XXS.

Radio doors P/N 59400-6XS and P/N 57880-6XS will be phased out in the near future

enables the receiver to communicate correction information using a cellular phone network.
Typically, a VRS™ network connection is also used, but is not essential.

radio port, but instead is directed internally to the TX-capable radio. The TX-capable radio then
transmits the information for approximately 3–4 km (2–3 miles).

SPS880 receivers.

.

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