Aim MyChron Light TG Guide

Technical Documentation: Lap timer - MyChron Light TG – Version 1.04 1
TECHNICAL DOCUMENTATION 14/10/2005 Lap Timer
Notes: MyChron Light TG technical documentation, dimensions and pinout – Version 1.04 MyChron Light TG
Figure 1: MyChron Light TG and its IR receiver
Introduction
MyChron Light TG represents the evolution of MyChron light MCL. This new,
easy to use, lap timer provides the driver (Auto Moto installations only) with a
new, handy, plug and play instrument. The new MyChron Light TG has a new,
beautiful 128 x 64 pixels graphic display and a ± 45° visual angle. This new lap
timer has also an auto power off feature after 20 minutes of inactivity.
The instrument is composed of two parts:
•MyChron Light TG display unit
•IR receiver
Your MyChron Light TG has:
•built in clock and calendar
•built in database for laps management
•capability of up to 1200 laps storage
The gauge is powered with two 3 V round internal batteries, but You can also
have (optional) an external powered version: 7-15 V external power.
MyChron Light TG standard version has a green display, but an optional version
with backlight (the one with external power) and blue display is also available.
Data is stored in the 128 Kbytes non- volatile internal memory and is downloaded
to a PC through an optional USB cable. Data stored will be analyzed thanks to a
new properly designed and developed software called “Light Analyzer”.
Installation notes
•MyChron Light TG internal power is a plug and play instrument. You
only have to configure it (see configuration paragraph). If, on the contrary,
You decide to buy an externally powered version, You have to connect
power cable to an external 7-15 V power source (the car/ bike battery for
instance).

Technical Documentation: Lap timer - MyChron Light TG – Version 1.04 2
•We recommend You to choose a place where the instrument will not be in
contact with oil or fuel and will not be too close to heat sources.
•To install MyChron Light TG You can use four M3 anti-vibration
mountings fixed in the four thread located on the back of the lap timer or a
strip of Velcro. This because MyChron light TG suffers for vibrations.
MyChron Light TG Configuration
Figure 2: MyChron Light TG display
First of all, please switch on MyChron Light TG pressing the right rubber pushbutton (to switch it
off You have to press the two right rubber pushbuttons). All digit numbers are set to zero.
In order to get correct data from Your lap timer, You have to configure it.
To start configuration, please press MENU pushbutton: configuration menu is displayed.
For further information concerning all configurable functions, please refer to the following table:
Displayed text Function
Clear test data You can decide whether to clear test data or not.
Session Mode You can set: Lap Counter, qualify or race mode using “Down” or “Up” button.
Min Lap Time Using DEC - / INC + (DEC for decrease, INC for increase) pushbuttons you
can set obscuring time. OK to save changes, CANC to discard them.
Track You can select a stored track name or insert new one, see best laps on each
track, clear all times.
Configure Entering this function You enter a sub-menu that allows You to: set time,
configure split, enter racer name, set up the display, see system information.
How to connect MyChron Light TG to the PC
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To connect your MyChron Light TG to the PC, please use the USB data
download cable (optional) and plug it both in the gauge’s and in the PC’s USB
port, as shown in Figure 3.
Optional USB data download cable
Figure 3: How to connect MyChron Light TG to the Pc

Technical Documentation: Lap timer - MyChron Light TG – Version 1.04 3
Dimensions
61.6 (2.42)
31.6 (1.25)
78.1 (3.07)
63.2 (2.49)
19.1 (0.75)
22.47 (0.9)
Dimensions in millimetres [inches]
Specifications
General characteristics Value
Internal battery 2 button batteries (3 V)
External Power 7-15 V
Working time Up to 1200 laps
Internal memory 128 kbyte
PC interface USB port
Pc connection (optional) USB Cable (300 kb/sec)
Other characteristics Value
Lap Timer Dimensions 78.1 x 63.2 x 22.4 mm
Display dimensions 61.6 x 31.6 mm
Display dot pitch 0.42 x 0.42 mm
Display resolution 128 x 64 pixel
Environmental IP 65