User`s Manual
Contents
1. is voltage and GD is ground For 6 V battery operation set jumper J3 to 6V top two pins For 9 12 V DC adaptor operation set J3 to 12V bottom two pins Speaker Output S1 amp S2 The speaker output is bridged Use 4 Ohm speakers for louder output 8 Ohm speakers for less distortion If external amplification is needed be sure to use a power amplifier which accepts bridged balanced input Otherwise the board may be damaged Trigger Inputs T1 T4 Either a negative pulse 5V to ground or a momentary contact closure with GD can be used for triggering Minimum trigger duration is 100 millisecond Motion Sensor Connector P1 This 4 pin 0 1 center pin header is for use with an optional SU 20 motion sensor The sensor output is internally connected to the board s T1 trigger input Therefore the sensor can be used to trigger either message 1 in the Direct mode or all messages sequentially in the Sequential mode Power Light PWR The power light should be on when power is applied However if input voltage is 6 VDC jumper J3 set to 6V the power light is always off in order to save power Volume Pot VOL Turn VOL clockwise to increase the output volume Configuration Jumpers J1 J2 not used J3 6V input voltage is 6 VDC 12V input voltage is 9 12 VDC Caution The board may be damaged if J3 is not set correctly EPROM Programming An EPROM programmer must be used to program EPROM chi2. DM2204A olleSuirgGic 1 How to configure the board for different operation modes When running the QuikW ave32 program to assembly sound files you can configure the operation modes there The configuration data is saved in the first EPROM image file On powerup the board reads the data and configure itself accordingly 2 How to set the sample rate There is no need to set the sample rate on the board The board will read the information from the EPROM and set the sample rate automatically All sound files need not have the same sample rate 3 Possible causes for no sound a The EPROM chips are not programmed properly b The EPROM chips are not inserted in the right order c Some pins on the EPROM chips are bent and not making contact with the socket d The board is in the wrong operation mode due to incorrect configuration data Re assemble the sound files with correct configuration data 4 Possible cause for noisy sound Some pins on the EPROM chips are bent and not making contact with the socket 5 Possible causes for wrong sound a The EPROM chips are not inserted in the right order b The board is in the wrong operation mode due to incorrect configuration data Re assemble the sound files with correct configuration data 6 Possible cause for trashy sound Unsupported file formats such as 16 bit resolution stereo output and ADPCM com pression will produce trashy sound Re digitize or convert th
3. e sound file 7 Possible cause for sound too fast slow Unsupported sampling rates will produce sound too fast or too slow Re digitize or convert the sound file 8 Can the motion sensor trigger any sound No Since the motion sensor output is internally connected to the T1 input it will always trigger sound 1 in the Direct mode It can also trigger all the sounds se quentially in the Sequential mode DM2204A Us sMnd Specifications Operation playback only Sound File Format Windows PCM wav Bit Resolution 8 bit Number of Channels 1 mono Sampling Rate 6 8 11 025 16 or 22 05 KHz All sound files need not have the same sample rate Maximum Number of Sound Segments Direct Mode 4 Binary Mode 8 Sequential M ode 128 Memory Type EPROM Capacity 1 MB 27C080 or equivalent x 2 Operating Parameters Supply Voltage 6 or 9 12 VDC Current Consumption 0 1 A typical Audio Output 1 W max 4 Ohm load Physical Dimensions 3 0 x 4 2 Direct Mode Plays up to 4 different sounds Sound 1 first priority is activated by triggering T1 sound 2 second priority by triggering T2 and so on If multiple triggers are applied at the same time only the sound with the highest priority will be played Binary Mode Plays up to 8 different sounds To activate a certain sound apply its sound number binary code on T1 LSB to T3 M SB with 1 45V and 0 OV Then trigger T4 to start the p
4. es some tricks to stop a sound without starting a new sound For the Direct and the Binary mode it is possible only when the Interrupt mode is enabled by triggering a non existing sound For ex ample if there are only two sounds in the Direct mode then triggering T3 or T4 will stop the current playback For the Sequential mode the current sound can be stopped by triggering any input other than T1
5. layback The binary code can be removed after the triggering signal goes back to high 5V The binary code for sound 8 is 000 Sequential Mode Plays up to 128 different sounds Sounds are played sequentially one per trigger by triggering T1 Sound 1 will be played the first time sound 2 the second time and so on The sequence starts from 1 again when the next sound is missing Interrupt Mode In this mode the sound does not start until the trigger goes high Any sound including the sound itself can interrupt the playback The playback will be stopped as soon as the interrupting trigger goes low but the new sound will not start until the trigger goes high Looping is not possible in this mode Non Interrupt Mode In this mode the sound starts as soon as the trigger goes low No sound can interrupt the playback A new sound can start only after the current sound is fin ished Looping is possible by keeping the trigger low constantly DM2204A Ir dldimGice Mechanical Drawing simplified amp not to scale E 42 j QUIKWAVE TM DM2204A O EPROM EPROM 1 2 oh 3 0 hee B H CONTROL cHIP CHIP T4 T3 T2 T1 an VD S2 S1 alo cael eooo o ejo I Caution Insert the first EPROM chip into socket 1 and the second EPROM chip if any into socket 2 Be sure to insert the EPROM chips with the notched side up or they may be damaged Terminal Block P2 Descriptions Power Input VD amp GD VD
6. ps and a UV eraser is needed to erase EPROM chips in order to re use them Before wav files can be programmed into EPROM chips they must be processed by the QuikWave32 pro gram first The QuikWave32 program combines all the wav files along with board configuration information into EPROM image files which are then used for EPROM programming Depending on the amount of data one or two EPROM image files may be generated by the QuikWave32 program If more than two EPROM image files are generated you will need to either reduce the sample rate to reduce the amount of data or use a playback board which has a bigger memory capacity Operation Mode amp Sample Rate Configuration The operation modes are configured in the QuikW ave32 program and the informa tion is stored in the first EPROM image file Upon power up the board reads the information and configure itself accordingly The sample rate of each wav file each file may have a different sample rate is automatically detected by the board Powerdown Mode The Powerdown mode may be used to save battery life by reducing the standby power of the board However a small popping sound will be heard at the beginning and the end of the sound when the onboard power amplifier is turned on and off The Powerdown mode like the operation modes is configured in the QuikW ave32 program and programmed into the first EPROM chip How to Stop a Sound Since there is no Reset input on the board it tak
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