Bosch Tech 2 User Manual

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2.  CARE AND CLEANING
After using the Tech 2, a few simple steps will insure that you get the most life out of this diagnostic tool. 
Although the Tech 2 is water resistant, it is not waterproof, so be sure to dry the Tech 2 thoroughly prior to 
usage and/or storage. 
Maintenance of the Tech 2 requires periodic inspection and cleaning of the following: 
• The display window 
• The keypad 
• The cable assemblies and connectors 
Make sure the Tech 2 is not connected to a vehicle or other power source and follow the cleaning procedures 
detailed below. 
CLEANING THE DISPLAY 
The display collects dust and grime during normal use. Occasionally wipe the screen with a clean, soft, 
static-free cloth. Remove stubborn stains by applying a non-abrasive glass cleaner to a soft cloth and wipe 
the cloth across the display area. 
NOTEDo not spray or pour cleaner anywhere on the Tech 2. If the Tech 2 
becomes dirty, clean it with mild detergent or hand soap. Avoid using 
harsh solvents, such as petroleum-based cleaning agents, acetone, benzene, 
trichlorethylene, etc. Harsh solvents can etch Tech 2 plastic surfaces. 
						

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CLEANING THE KEYPAD 
Clean the keypad with a non-abrasive cleaner. Apply a small amount of cleaner on a soft cloth and wipe the 
cloth across the keypad area. 
MAINTAINING THE CABLE ASSEMBLIES 
AND CONNECTORS 
Inspect cable assemblies during connection and disconnection to components. Watch for any cuts or 
abrasions along the cables. Check the connectors and connector pins for grease, dirt, and corrosion. If 
contaminants are present, remove them with a mild soap solution. 
STORING THE TECH 2 
• Store the Tech 2 away from solvents and other liquids. It is NOT moisture proof. 
• Store the Tech 2 away from direct sunlight. Ultraviolet and infrared light will darken the display. 
• Store the Tech 2 in its plastic case. Otherwise, the high-impact plastic cover could become scratched. 
						

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3.  GETTING STARTED
This section covers all Tech 2 vehicle applications and therefore some of the information provided may not 
be required for individual applications. 
The Tech 2 contains two serial communication ports: the RS-232 and the RS-485. Use the RS-232 port for 
downloading data from another computer to the Tech 2. The RS-485 port is currently not used. 
The Tech 2 also contains two PCMCIA ports, a power jack connector, and a Vehicle Communications 
Interface (VCI) connector. One of the PCMCIA slots contains a memory card with diagnostic information. 
The power jack accepts power from the AC/DC power supply, battery, or cigarette lighter power cable. The 
VCI connector accepts the DLC cable or DLC loopback adapter. 
FIGURE 3-1. Identification of the Tech 2’s External PortsPower jack 
connector
VCI connectorRS-232 port RS-485 port
PCMCIA port 
						

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INITIAL HARDWARE INSTALLATION 
The Tech 2 hardware initial installation requires the following steps: 
1. Remove the RS-232 loopback adapter (P/N 02001606) from the storage case (P/N 02002971). Plug it 
into the RS-232 port (Figure 3-2). 
2. Attach the Tech 2 DLC cable (P/N 02002952) to the VCI connector (Figure 3-3). 
3. Locate the DLC loopback adapter (P/N 02002953) in the storage case. Attach it to the DLC cable 
(Figure 3-4). 
4. Locate the NAO (P/N 02002972) power supply and appropriate power cord in the storage case. Insert 
the power jack into the Tech 2 DLC cable (Figure 3-5) or into the bottom of the Tech 2 next to DLC 
cable connector (Figure 3-6). 
5. Turn on power by pressing the PWR button located on the Tech 2 key pad. 
6. Tech 2 hardware is verified automatically by the POST Test (for information on this program, see 
Chapter 6). 
7. Disconnect the RS-232 loopback adapter, the power supply, and the DLC loopback adapter and return 
to the Tech 2 storage case (Figure 3-7). 
FIGURE 3-2. Connection of RS-232 Loopback Adapter to Tech 2 RS-232 Port RS-232 port
RS-232 loopback 
adapter 
(P/N 02001606) 
						

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Te c h  2Page 3-3
FIGURE 3-3. Connection of Tech 2 DLC Cable to the VCI ConnectorVCI Connector
Tech 2 DLC cable 
(P/N 02002952)
FIGURE 3-4. Connection of DLC Loopback Adapter to DLC CableTech 2 DLC cable 
(P/N 02002952) 
DLC loopback adapter 
(P/N 02002953)  
						

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FIGURE 3-5. Connection of Power Jack to Tech 2 DLC CableTech 2 DLC cable 
power jack connector
Power jack (NAO power supply)
FIGURE 3-6. Connection of Power Jack to the Bottom of Tech 2Tech 2 power jack connector
Power jack (NAO power supply) 
						

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PCMCIA CARD REMOVAL 
The PCMCIA Card is accessed by opening the hinged door located at the top of the Tech 2. The card is 
found in the upper slot. The lower slot will be used for future enhancements. Press the up arrow button 
(located on the left hand side of the Tech 2) to eject the card (Figure 3-8).
NOTEWhen using the Tech 2 for vehicle communications, the Tech 2 must be 
powered with the cigarette lighter power cable (P/N 02002954) to ensure a 
proper ground.
FIGURE 3-7. Disconnection of RS-232 Loopback Adapter, DLC Loopback Adapter, and 
Power SupplyPower jack 
NAO power supply
Tech 2 DLC cableRS-232 loopback adapter DLC loopback adapter(P/N 02002972) 
(P/N 02002952) (P/N 02001606)  (P/N 02002953) 
FIGURE 3-8. Ejection of PCMCIA CardEmpty lower PCMCIA slot  Up arrow eject button  
						

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PCMCIA CARD INSERTION 
The PCMCIA Card is keyed with two notches on one side and one notch on the other side (Figure 3-9). 
Make sure that the notches are in the correct position before inserting the card. Slowly insert the card 
(Figure 3-10) until it clicks into place. 
Make sure the PCMCIA card is inserted into the upper slot. The card fits into both slots; however, if the card 
is placed in the lower slot, the Tech 2 will not function properly. 
CAUTION
CAUTION!Use only Vetronix supplied PCMCIA cards. The PCMCIA slots are 
designed to interface with 5-volt cards. Permanent damage to Tech 2 could 
occur if a 3.3-volt card is inserted into the Tech 2 PCMCIA connector. 
FIGURE 3-9. PCMCIA Card KeyingBottom side of Tech 2 
Tech 2 PCMCIA card  Tech 2 door 
FIGURE 3-10. PCMCIA Card Insertion Tech 2 PCMCIA card  
						

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VEHICLE COMMUNICATIONS INTERFACE 
MODULE REMOVAL 
The Vehicle Communications Interface (VCI) module is located at the lower end of the Tech 2. Removal of 
this module is required only if the VCI needs to be updated. To remove the module disconnect Tech 2 DLC 
cable if attached, move the lever (Figure 3-11) all the way toward the right side of the Tech 2 (Figure 3-12). 
The VCI module can now be removed. 
FIGURE 3-11. VCI Module Removal VCI module lever
FIGURE 3-12. VCI Model RemovedVCI module lever 
VCI module (moved all the way to the right)  
						

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HAND STRAP ADJUSTMENT 
The Tech 2 velcro hand straps may be adjusted for individual needs as shown in Figure 3-13. 
FIGURE 3-13. Tech 2 Hand Strap Adjustment Velcro strap