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Tool's Requirement:
ASSEMBLY INSTRUCTION::
1.Placing Resistors
Solder each resistor in place following the parts placement designators printed on the circuit board. The resistors are not polarized and may be mounted with either of their leads in either of the hole provided.
2.Placing Ceramic Disk and Mylar capacitors
They are not polarized so the leads are interchangeable.Solder each capacitor in place following the part placements designators printed on the circuit board.
3.Placing Electrolytic capacitors
These parts are polarized and NOT interchangeble.Leads are marked "+" and "-".The "+" lead must go through the "+" hole in the circuit board.Solder each capacitor in place following the parts placement designators printed on the circuit board.There are three Caps which don't have round marks on their designators.Two are 100 uF and One is 33 uF.Check the placement graphic diagram.
4.Placing diodes
the diodes are polarized and must be oriented so that the lead of the baded end of the part corresponds to the banded end of the designator on the circuit board.Diodes are slighty heat sensitive so the soldering operation should be done as quickly possible.
5.Placing Crystal
This part is non polarized and installed at the location marked "XTAL" on the circuit board.
6.Placing LEDs
Install LEDs on the circuit board at location shown as "PWR","OL" and "send" by the part placement graphics.Notice that the LED is polarized and the longer lead usually "Anode" and must go to "+" shown on the circuit board.The new version of Td1 vs 2.1 board doesnt have round marks on their designators so you might cross check onto placement graphics diagram for installing these LEDs.
7.Placing Trimmer Potentiometers
Install the trimmer potentiometers on the circuit board shown by parts placement graphics.You might replace these trimpots with regular potentiometers.Its doable.
8.Placing DIP Switch
Install the DIP switch on the upper right corner of the circuit board.Make sure that the DIP switch is mounted so that switch actuator labeled as "1" is on the package closest to the edge of the circuit board.You might make your own wire jumpers if you dont want to use DIP switch.Check the DIP swith configuration (click here).
9.Placing ICs
-It's recommended to put Sockets for all ICs before installing them on the board.
Install the ICs on the circuit board following marks shown on the circuit board.Notice that IC is polarized.Handle the ICs carefully and should be treated with some respect.Of all the parts the ICs are most easily damaged and solder the IC pins carefully.Socketed IC 89C51/89S8252 (preprogrammed Microcontroller) and ADC809 are highly recommended.Do not Install the 89C51/89S8252 at this time.
10.Placing Connectors.
See the graphics and diagram for MIDI IN,MIDI OUT ,Power supply ,MAP selector and Input wiring.Power supply Input shown by "Bat6V" on the circuit board.MIDI IN and MIDI OUT are located on the bottom edge of circuit board.Analog Input and Power Supply connectors shown on the upper righr edge of circuit board.Notice that MAP selector connector is on the left edge of the circuit board and shown by 5 pin rectangle designator .
Testing Instruction:
1.Recheck your work and make sure all components mounted on the circuit boad properly.Check again the orientation of the polarized components.
2.Plug the adaptor (6 Volt DC adaptor ) into "bat6V" Connector and turn it on .The "PWR"LED should be on ,Proceed to step 3.If not turn off the Adaptor immediately and go back to step 1 above.
3.Once "PWR" LED lights, let the circuit board idle for a few minutes while checking any parts that might be getting overly warm.If it's too hot by touching your finger it might be something wrong on that particular component go back to step 1.If everything is fine proceed to next step.
4.Analog/Amplifier test
Connect The piezo sensors or electronic drum pads to the "input"connector.Tap the sensors or pads should cause the "OL" LED on the board to blink on briefly with each strike.The harder strike will get brighter light.Turn the sensitivity trimmer potentiometers clockwise or anti clockwise by using small screwdriver to get certain sensitivity by looking at the bright of "OL" LED while striking the sensor/pad.
5.Digital/Microcontroller test
Turn off the Adaptor and install the microcontroller 89C51.Turn on the Adaptor again and tap the sensors/pads will cause the "send"LED to blink on briefly with each strike.This means that the microcontroller system is sending the MIDI signal to the MIDI OUT connector.
Final Test
6.Connect the MIDI OUT to your drum machine or your Computer with MIDI interface capability. Set the MIDI channel for Channel 10.See the diagram for setting the channel of DIP Switch on the circuit board .Set the same channel on Your Drum machine/Computer.You might utilizeThe MIDI diagnostic freeware program for PC computer testing .You should see the hexadecimal numbers sent by the circuit board appears on the monitor screen using the software when tapping the sensors/pads.
Advanced Features (for firmware:TD-V3.1 and TD-V3.3):
* See the diagram to connect PC computer,TapDrum TD-1 MIDI Brain and drum machine for programing MAPs using MIDI sysex.Using this diagram will allow you to program and create unlimited drum Map and upload the file into the all MAPs TapDrum Midi Brain.
*Using Two Tapdrum TD-1 MIDI brain boards will provide 16 analog inputs with 16 presets drum Maps.See connection diagram to create the configuration.
MIDI Sysex:
send MIDI sysex to Tapdrum TD-1 MIDI Brain:
example:
-------Sensor ---Voice----- --Dec-----HEX
