Scheme 108
The Group Tester One (GT1) is a portable diagnostic tools. It has the same processor as the DISplus; a Pentium III, with 256 MB RAM and a 20 GB harddrive.
Other features include
- 12.1" TFT color display, 1024 x 768 resolution
- Integrated PCMCIA card reader
- Integrated chip card reader
- Touch screen - same as DISplus
- Workshop grade case
- ASM-technology motherboard
- Temperature operating range from 35°F to 105°F
- 2.5 hours of operation with a fully charged battery.
- Can be powered by vehicle battery.
- Weighs 7.7 lbs.
Scheme 109
Control Panel
The control panel is the central component of the GT1. The operating system and the application programs are stored here.
Scheme 110
Located on the front of the Control Panel
- PCMCIA interface (radio card slot in left handle)
- Monitor with touch capabilities
- Control Block
- Battery Compartment (in right handle)
Monitor
The surface of the monitor is covered by a touch-sensitive plastic sheet that senses the pressure of a finger or the touch pen and transfers it to the system.
Note. Use only your finger or the touch pen supplied to operate the touch screen. If other objects are used, it may damage the GT1 Screen.
Control Block
The main control block of the GT1 control panel is located under the center of the touch-screen. It consists of 1 on/off switch, 3 LEDs and the infrared receiver port. The infrared port is the connection to the wireless keyboard used during programming.
The On/Off switch is used to switch the control panel on and off or to initiate a forced switch-off. If a fault occurs that causes the unit to "lock-up", you can shut down the unit by holding down the on/off button for 5 seconds. This may cause the loss of operating software, necessitating a reinstall (use only in an emergency).
The status of the switch does not affect the charging operation.
Scheme 111
The "temperature" LED will glow red when the control panel is overheated. The control panel will shut down approximately 10 seconds later. See the Owner's Manual for restart procedures.
The "battery" LED will glow yellow during charging. It will switch off to signify the battery is fully charged. It will flash yellow if excessive temperatures continue.
The "operation" LED will glow green when using an external power source, glow orange when using the internal battery. A flashing orange LED signifies a discharged battery.
Alternately flashing orange/green LED denotes that the internal battery is defective or has been removed.
Scheme 112
Scheme 113
Power Supply
The control panel is supplied power from one of three voltage sources
- Internally from the battery (approximately 2.5 hours of operating time).
- Externally from the bench power unit or the docking station.
- Externally from the vehicle electrical system.
DVD Drive
The DVD Drive is accessible from the top of the control panel. It accommodates DVD's and CD-ROM's for installing programs, applications or updates of the control panel.
Scheme 114
Note. When you open and close the DVD drive the control panel must be in the 14° inclination position as shown, otherwise the drive tray or the disc may be damaged. The suspension system for the drive is optimized for 14°. Do not use the DVD unless the control panel is attached to the docking station.
Docking Station
The Docking Station is intended for stationary operation, it replaces the bench power unit and provides the power supply. The Docking Station also provides the interfaces for connection to a USB device and the LAN Network.
Scheme 115
Scheme 116
Bench Power Unit
As an alternative to the docking station, the bench power unit may be used to power the control panel. The bench power unit consists of the built in connecting cable on the control panel, the power unit itself and a separate power cable. When the control panel receives power from the bench power unit, the internal battery is simultaneously charged.
Optical Keyboard
The keyboard uses an Infrared link to communicate with the GT1 control panel. It is used only for service programs and can not be used in place of the virtual keyboard of the control panel. The keyboard must always face the control panel when in use and must be less than 1 meter away from the control panel (IR). The keyboard uses 4 AA batteries as an internal power supply.
Scheme 117
| CAUTION | Old batteries can leak and damage the keyboard. Always keep fresh batteries in the keyboard (or remove when not in use). |
If more than one GT1 is in use in the workshop, the optical keyboard should be configured to a specific GT1 control panel as follows
- Press and hold the identification key while pointing the keyboard at the control panel.
- Press a numeric key, 0-7 on the keyboard. The control panel will now respond only to commands from that keyboard.
If necessary the identification can be changed at anytime following the above instructions.
Scheme 118
LAN Control Panel Cable (Crossed)
The LAN control panel adapter (crossed) is approximately 30 cm long with a RJ45 connector and a RJ45 socket. It is identified by a black (yellow on early units) stripe near the socket and a label reading "LAN Adapter BTX." This crossed cable is needed to be able to communicate between the diagnostic head and the GT1.
Scheme 119
LAN Control Panel Adapter (Uncrossed)
The LAN control panel adapter (uncrossed) is approximately 30 cm long with a RJ45 socket and a RJ45 connector. It can be identified by a gray stripe near the socket and a label reading "LAN Adapter 1:1."
Scheme 120
LAN Control Panel Cable
The LAN diagnostic head cable is 10 meters long and has a RJ45 connector and an orange plug connector.
Scheme 121
MFK1 and MFK2
The MFK1 and MFK2 cables are the main leads used for measurements. They are similar in appearance, but have different measurement capabilities.
Only one cable, either MFK1 or MFK2 (visual markings) may be connected to the control panel at one time unless a Measurement Interface Box (MIB) is used.
Both large positive cable ends of MFK1 and MFK 2 include a button used to hold the measured value on the display screen.
Multi-Function Test Cable-MFK#1
MFK 1 is used to measure
- Voltage - up to 50 Volts
- Current - up to 2 Amps
- Resistance
- Diode Testing
- Frequency
- Period
- Duty Cycle
- Pulse Duration
- Oscilloscope Measurements
Scheme 122
Multi-Function Test Cable-MFK#2
MFK 2 is used to measure
- Voltage - up to 500 Volts
- Frequency
- Period
- Duty Cycle
- Pulse Duration
- Oscilloscope Measurements
Scheme 123
Touch Pen
The Touch Pen is an ergonomic operating aid for the touch screen that makes it easier to operate the displays.
OBD Diagnostic Cable
The Diagnostic Cable is used to connect the diagnostic head to a vehicle via the OBD II diagnostic connector (upper right).
Scheme 124
Diagnostic Head
The Diagnostic Head enables operation of the diagnostic interface via either radio or cable communication.
Scheme 125
| LED 1 Green | LED 2 Yellow | LED 3 Red | Function | Remarks |
|---|---|---|---|---|
| ON | ON | ON | Initialization | Recorder Button Green |
| ON | OFF | OFF | Power Up | |
| ON | Flashing | OFF | Standby | |
| ON | ON | OFF | Connected | |
| Flashing | ON | OFF | Self Test or Update | |
| Flashing | Excess Temperature | Fault |
DIAGNOSTIC HEAD CHART
Scheme 126
Vehicle Battery Adapter Cable
The vehicle battery adapter cable is used while in the vehicle as a power supply for the GT1. This cable does not charge the GT1's internal battery.
Scheme 127
Ammeter Clamp with Adapter
The ammeter clamp and adapter can be used to measure the amperage of a circuit inductively. There are two amperage clamp available: one measures up to 50 amps, the other up to 1000 amps.
Scheme 128
Battery
Power is supplied by the integrated battery when the control panel is not connected to an external power source. The battery must be charged to insure uninterrupted use of the control panel as a mobile test unit. The battery is charged automatically as soon as the control panel is placed in the docking station or connected to the bench power supply. While the battery is being charged the "Battery" LED illuminates in yellow.
To achieve the longest possible service life for the integrated battery, it must be fully charged, then discharged for normal use. Once a month the battery should be "formed" which entails fully discharging the battery, then fully recharging it.
To "form" the battery
- Disconnect the bench power unit from the control panel or undock from the docking station or disconnect the docking station from a power source.
- Fully discharge the battery, by leaving the control panel "ON" until all the LEDs are out.
- Dock the control panel or supply power to the docking station or connect the bench power unit.
Charging is complete when the "Battery" LED goes out.
Note. Always replace a defective battery with a new battery. Never operate the control panel with out a battery (it acts as a buffer). Sudden interruption of power my cause the control panel to loose the installed operating system.
Replacing the Battery
- Switch off power and undock control panel.
- Remove screw on right hand handle.
- Pull off handle.
- Remove battery.
- Press down on the retainer for the connector and carefully remove connector.
- Connect new battery.
- Insert new battery in handle.
- Reinstall handle on control panel.
- Completely charge new battery.
Scheme 129
Diagnosing with the GT1 (hardwired to the diagnostic head)
For hardwire connection three cables must be used
- LAN control panel adapter UNCROSSED
- LAN control panel adapter CROSSED
- LAN Diagnostic head cable
The three cables MUST be connected in the particular order shown below.
Scheme 130
| Symptom | Possible Causes | Remedy |
|---|---|---|
| The system "crashes"; the hourglass no longer changes back to the cursor arrow; no operation possible | Internal Fault | If `normal' switch-off not possible, use a forced switch-off (press the on/off switch for approx. 5 seconds) to switch the control panel off and on again. |
| With the control panel docked, the "Operation" LED lights up orange. | Docking station power supply is interrupted. | Check whether power is present. Insert the power plug correctly. |
| Control Panel is not supplied with power via the docking contact. | Check the spring contacts for dirt or foreign objects. To set up a correct connection, undock and then redock the control panel tow or three times. If no faults can be determined, send a Fault Report Fax. | |
| "Temperature" LED lights up red; control panel switches off. | Excess internal temperature circuit breaker activated. | Move the control panel to a cooler room and allow it to cool down adequately. Switch the control panel on again. If the "Temperature" LED flashes yellow without the presence of high ambient temperature, send a Fault Report Fax. |
| "Battery" LED flashes yellow for 10 seconds on startup; control panel does not start. | After the control panel shuts itself off, there is still excess temperature. | Move the control panel to a cooler room and allow it to cool down adequately. Switch the control panel on again. If the "battery" LED flashes yellow without the presence of high ambient temperature, send a Fault Report Fax. |
| System does not power up completely; gets `stuck' with an error message. | Internal run error | Switch the control panel off (press the on/off switch for 5 seconds = forced switch off) and then on again. If the system still freezes, you must reinstall the Base CD in accordance with Section 3.5.3. If this fault occurs repeatedly, send a Fault Report Fax. |
| After complete discharge and docking at the docking station, the system does not power up. | Profound discharge of the battery. | After a profound discharge and docking at the docking station, you must wait approx. 3 minutes before the system can be powered up |
CONTROL PANEL - TROUBLESHOOTING CHART
Note. The power supply to the control panel cannot be measured at the open docking contact because the power is through-connected via a proximity switch only when the control panel is docked.
| CAUTION | Forced Switch-Off may be used only in the case of special faults. Continued use of this feature may cause operating system failure and device shut down. Normal shut off is performed by pressing the ON/OFF switch for 2 seconds. |
Touch Screen
| Symptom | Possible Causes | Remedy |
|---|---|---|
| The cursor does not respond (does not follow finger contact). | Touch controller defective or system `crashed'. | Switch the control panel off (press the on/off switch for 5 seconds = forced switch-off) and then on again. If the fault persists or occurs more frequently, send a Fault Report Fax. |
| The touch screen remains dark; no error message by means on LED. | Touch screen is in the energy-saving mode. | Not a fault. The screen image reappears when the touch screen is touched. |
| Backlighting failure. | If you glance sideways at the touch screen, you can detect vague characters. Send a Fault Report Fax. | |
| The cursor arrow is not located beneath the point of touch (touch offset) | Touch the controller set incorrectly. | The touch controller must be calibrated in the "Administration" window. Press the "Calibrating touch screen" button, enter the password and follow the instructions that are displayed. If this does not eliminate the problem, send a Fault Report Fax. |
| Incorrect pixel colors | Individual transistors defective. | Individual pixels of incorrect colors are tolerable. If the entire screen rows or columns are incorrect, send a Fault Report Fax. |
TOUCH SCREEN - TROUBLESHOOTING CHART
| IMPORTANT | Only use finger or the touch pen to operate the screen. Screen damage may result otherwise. |
Plug-in Connections
| Symptom | Possible Causes | Remedy |
|---|---|---|
| 50 A ammeter clip cannot be connected | Connectors on the ammeter clip do not fit in the socket. | Use the size 2 adapter |
| Cable connection via LAN interface to diagnostic head interrupted | Plug-in connections on LAN adapter defective | Check that the plug-in connections are correctly seated and undamaged. Check whether the plug-in connection via the LAN control panel adapter (uncrossed) has been established. |
PLUG-IN CONNECTIONS - TROUBLESHOOTING CHART
| IMPORTANT | Never use force to insert the connectors. The connectors on the measuring and diagnostic cables are marked with a red dot that must be aligned with a corresponding dot on the socket. |
Printer
| Symptom | Possible Causes | Remedy |
|---|---|---|
| Local Printer does not print | Printer connected to docking station, control panel undocked. | Dock the control panel or insert the USB cable on the printer in the control panel. Check that the connection is correctly seated. |
| Printer is defective. | In the "Administration" window, press the "Self-test" button and select the "Printer connection" function from the menu displayed. The printer should print a page with the heading "PS". If this does not occur, check the cable connection to the printer. | |
| Network Printer does not print. | Network printer connected via LAN cable to docking station; control panel undocked. | Dock the control panel. |
| Radio link to diagnostic head established | Disconnect the cable connection to the diagnostic head and established a connection to the network printer in accordance with Section 4.4.8. | |
| Cable link to diagnostic head established. | Disconnect the cable connection to the diagnostic head and established a connection to the network printer in accordance with Section 4.4.8. | |
| Printer Defective. | In the "Administration" window, press the "self-test" button and select the "printer connection" function from the menu displayed. The printer should print a page with the heading "PS". If this does not occur, chack whether the correct IP address for the printer is entered in the "Administration - Network configuration" window. |
PRINTER - TROUBLESHOOTING CHART
Accessories
| Symptom | Possible Causes | Remedy |
|---|---|---|
| No measurements possible with MFK1. | Measuring head defective. | In "Administration", run a self-test of the MFK1. If an error message is issued regarding the measurement system or measuring cable, send a Fault Report Fax. |
| No measurements possible with MFK2. | Measuring head defective. | In "Administration", run a self-test of the MFK2. If an error message is issued regarding the measurement system or measuring cable, send a Fault Report Fax. |
| No input possible via the optical keyboard. | No IR connection possible or batteries discharged. | Check whether the transmit and receive windows of the infrared connection are covered. Change the distance between the devices. Replace the batteries in the optical keyboard. If no connection can be set up, send a Fault Report Fax. |
ACCESSORIES - TROUBLESHOOTING CHART
| Symptom | Possible Causes | Remedy |
|---|---|---|
| No power supply to the control panel ("Operation" LED does not light up in green on docking when switched on). | No power supply or power supply plug disconnected. | Insert the power supply plug. Press the on/off switch. |
| Docking contacts dirty | Carefully clean the contacts on the docking station with a lint-free cloth. | |
| Foreign object prevents the perfect seating of the plug-in contacts. | Remove the foreign object. | |
| Proximity switch is defective, does not through-connect power. | Send a Fault Report Fax | |
| Power supply unit defective | Send a Fault Report Fax | |
| LED defective | Send a Fault Report Fax | |
| "Battery" LED does not light up orange when switch off. | Battery is fully charged. | Not a Fault. |
| Docking contacts dirty. | Carefully clean the contacts on the docking station with a lint-free cloth. | |
| Power supply unit defective. | Send a Fault Fax | |
| LED defective. | Send a Fault Report Fax |
DOCKING STATION - TROUBLESHOOTING CHART
Fault Codes
| Codes | Fault Group |
|---|---|
| 000 | System error from UNIX operating system |
| 100 | Fault in the measurement system, internal |
| 200 | Fault in the EDIC application |
| 300 | Fault in the system technology |
| 400 | Fault in the TOROS application |
| 500 | Fault in the measurement system application |
| 800 | Run error |
| 900 | Internal error |
FAULT CODES CHART
| Symptom | Possible Causes | Remedy |
|---|---|---|
| No connection possible (LED 1 on diagnostic head is dark). | No Power supply of the diagnostic head via vehicle electrical systems. | First check the plug-in contact on the BMW or OBD diagnostic cable and its connection to the vehicle. Switch on the ignition. If the LED still does not light up, send a Fault Report Fax. |
| Connection to the diagnostic head not possible or faulty (LED 2 flashes yellow); no diagnostic head is recognized. The diagnostic head cannot be connected. | Interference due to excessive distance from the vehicle; in the case of radio link, may also be due to external radio sources or absorption. | Check the correct connection of the cables at the diagnostic head. Change the location of the diagnostic head and, if necessary, of the control panel. If this does not remedy the fault, change the connection type. If there is still no connection, send a Fault Report Fax. |
| Diagnostic head software defective. | Perform a reinstallation in accordance with Section 7.7 | |
| Incorrect IP address when the diagnostic head was changed. | Check the IP address in the "Administration, Network configuration" window. | |
| Radio card in the diagnostic head defective. | If possible, use the second diagnostic head to check the radio link. If the connection can be established, the card in the first diagnostic head is defective. Send a Fault Report Fax. | |
| Radio card in the control panel is defective. | If possible, use the second diagnostic head to check the radio link. If no connection can be established with this head either, the card in the control panel might be defective. Using a suitable tool (such as a screwdriver), pry the cover off the radio card slot in the left handle of the control panel ( (Scheme 114)1); you will then se one green and one yellow LED on the radio board. If the green LED is lit, the radio board is OK. If the yellow LED is flashing rapidly, data transmission is being formed correctly. If the LEDs are in any other state, send a Fault Report Fax. | |
| LED 3 Flashing Red | Interior temperature of the diagnostic head is too high. | Terminate the diagnosis. Terminate the connection and allow the diagnostic head to cool adequately before using it again. |
| LED1 flashing rapidly | General fault in the diagnostic head. | Send a Fault Report Fax. |
| "Recorder" button on the back lights up in green. | Only while booting. | Not a Fault. This button has not function at this time. |
DIAGNOSTIC HEAD - TROUBLESHOOTING CHART
Measurements Interface Box(MIB)
The MIB was developed to expand the basic measurement capabilities and functions of the GT1 to the level of the DISplus.
The MIB contains all of the components necessary for acquiring static and dynamic signals, generating stimulation signals as well as complex measurements. The MIB collects the signals directly from the vehicle, processes them and transfers them to the diagnosis system for analysis.
The MIB is connected to the GT1 via the new MIB-GT1 connection cable. The GT1 automatically recognizes if the MIB is connected when "Measuring System" is selected. When the Measuring System is selected the "Ready" light on the MIB will light.
Scheme 131
The following items are included with the MIB when delivered
- Measurement Interface Box
- 1000 amp clamp
- 25 bar pressure sensor - plastic cable protector is locked to the pressure sensor body. Do not attempt to open it .
- Quick connect adapter for 25 bar cable
- MIB-GT1 connecting cable
- KV clip
- RZV cable
- Temp sensor
- Clip-on trigger sensor
- Stimulation cables 1&2
- External power supply unit.
- TD cable
Scheme 132
Front Panel
Push-pull connectors are used on the front for easy removal/installation during testing.
The following push-pull connectors are on the front for the following cables
- MFK1 - distributed with GT1
- MFK2 - distributed with GT1
- 50 amp clamp (not included with MIB shipment)
- 1000 amp clamp
- 2 pressure sensors (DR1 & DR2) - only the 25 bar sensor included with MIB.
- KV/RZV
Rear Panel
7 D-sub connectors are on the back for the following cables
- MIB-GT1 main cable
- Temp sensor
- Clip-on trigger
- Stimulation cable 1
- Stimulation cable 2
- TD cable
The cables on the back must be permanently connected to the MIB and not removed during operation. The MIB recognizes the cables attached.
GT1 Trolley
The GT1 Trolley was developed so that all of the GT1 peripheral pieces could be safely stored and close at hand for quick use. This includes the Measurement Interface Box (MIB) and associated cables. The GT1 trolley will remain viable for future workshop systems.
Scheme 133
Notes
Scheme 134
The GT1 Trolley stores the following peripherals for quick access
- GT1 storage shelf - the GT1 locks onto the shelf to protect it from falling.
- MIB storage shelf- uses a Velcro strap for protection.
- Storage drawer for keyboard.
- Deutronic battery charger storage shelf.
- Storage drawer for MFK and LAN cables.
- Storage bracket for the OPPS/OPS head. (not used for MINI)
- Storage bracket for the GT1 head.
- Storage hooks for the MIB cables.
UTILIZATION NOTES
- Never push the trolley by the top cable rack. Always push it by the grey curved handles.
- Take the time to run the cables neatly the first time. Time spent here will save you time during usage.
- The test cables are run up behind shelf (1) and hung from the test cable rack (8).
- Power cables for the GT1 and MIB are run down behind shelves 2 and 4. A power strip can be installed behind drawer 5 and the power cable run out through the opening in the back of the trolley.
- A Deutronic battery charger can be placed on shelf 4. The cables are stored in drawer 5 when not in use.
- Take care to properly replace all cables when finished. Proper cable storage saves everyone time and money.