Using the E1103: This kit is designed for the evaluation and development of applications using the QT1103-ISG Integrated Circuit (IC). In this example the QT1103-ISG is run in Simplified mode. Refer to the QT1103-ISG datasheet for details (see www.qprox.com/downloads). * * * * * Ensure the E1103 Keyboard PCB is connected to J2 on the E1103 Main PCB. Select desired Adjacent Key Suppression (AKS) mode by moving the 2-way Jumper at J1. Insert the battery provided into the battery holder on the E1103 Main board. Ensure that the battery has the correct orientation (negative (-) side to board) or the E1103 will not work. Touch ON/OFF - The LED (D11) under the standoff will illuminate to indicate power to QT1103-ISG. Touch any of the 10 key(s) on the E1103 keyboard and the corresponding LED(s) will illuminate. Auto Power-Off: The E1103 will power off after approximately 15 minutes. (Using the auto shut-off features of the QT102-ISG fitted) An external power supply can be used instead of a battery. WARNING: if an external power supply is used then the battery MUST be removed. Schematic: AKS Mode: On the E1103, AKS is a global setting. Refer to the QT1103-ISG datasheet for details. The AKS mode is changed by moving the 2-way Jumper fitted to J1 as indicated. * If set to 'On': When touching multiple keys, only the LED associated with the key with the strongest signal is lit. * If set to 'Off': When touching multiple keys, all associated LEDs will be lit. External Input: The E1103 can be connected to User electrodes, using connector J2. The values of C1-C10 (sample capacitors) may require changing. External Output: The output of the QT1103-ISG can be accessed using J3. The tracks at LK1-4 can be cut to disconnect the QT1103-ISG from U3, which is the IC used to used to drive the LEDs on the E1103 Main Board. Troubleshooting: Problem Potential Solution E1103 does not work If the Power LED is off, the 15 minute timeout may have been exceeded. Touch ON/OFF to restore power. If using a battery, check that the negative (-) side is facing the board. Check/replace battery. If using an external power supply, check that the correct connections have been made. (Ensure the battery has been removed) LED(s) stuck on After changing AKS Jumper position, turn power off, then on again. After replacing the E1103 Keyboard, turn the power off, then on again. AKS Mode unchanged after changing Jumper position Turn power off, then on again. Incorrect LED(s) light when keys touched Check J2 connector pins on E1103 Main PCB and E1103 Keyboard are correctly aligned. E1103 Kit Contents: 1x E1103 Evaluation Assembly (E1103 Main PCB and E1103 Keyboard PCB) 1x CR2032 Battery, 3V, 235mAh 2x sample QT1103-ISG ICs 1x E1103 User Guide Packed by: Dated: Corporate Headquarters: North America: 1 Mitchell Point 651 Holiday Drive Bldg 5/300 Ensign Way, Hamble Pittsburgh, PA 15220 Copyright (c) 2007-2008 QRG Ltd. Southampton SO31 4RF USA All rights reserved United Kingdom Developers: John Dubery, Kevin Snoad Patented and patents pending Tel:+44 (0)23 8056 5600 Tel:412-391-7367 www.qprox.com Fax:+44 (0)23 8045 3939 Fax:412-291-1015 REV 201.0108