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2   Installation

Installing the MIDI Upgrade to your Jen is a difficult task.  But if you allow yourself plenty of 

time (2 3 quiet hours) and follow these instructions then you should be able to do this task.  

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Some important advice:

DO NOT RUSH – take your time.  Try to do this with no one else around.  Put on some

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quiet classical music.  Put your mind in a relaxed state.

DO NOT FORCE ANYTHING – if something will not move or unscrew then stop and 
work out why not.  Do not apply all your strength, you will only break or snap a screw. 
And that is bad mojo.

SPREAD YOURSELF OUT – use plenty of space to lay things out as you go.  Give yourself 
room to move.

The instructions are presented as tick lists.  Follow each item in the list and tick them off as 
you go.  That way you can go away, and return to the installation and know exactly where 

you were.

2.1  Preparation

As in all things, preparation is paramount.  Before starting the installation please check 

through the following sections to make sure you have the required tools, the required skills, 
and a suitable work place.

2.1.1   Tools and Equipment You Will Need

You will need to provide some tools yourself.  The following list sets out everything you will 
need to complete this installation:

small cross head screwdriver

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large cross head screwdriver

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snipe nose pliers

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pair of wire cutters

wire stripper

soldering iron

desolder pump

trimmer tool

22 SWG solder

permanent marker pen

3mm metal drill

15mm metal drill

electric drill & safety glasses

 

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Summary of Contents for SX1000

Page 1: ...JEN SX1000 MIDI Upgrade Installation User Manual Neil Johnson www njohnson co uk...

Page 2: ...hts reserved First edition February 2008 Minor corrections April 2008 For the latest version of this manual please refer to the website http www njohnson co uk Jen SX1000 Support questions may be sent...

Page 3: ...e 6 2 2 Step by Step Installation 6 2 2 1 Opening The Jen SX1000 6 2 2 2 Removing The Keyboard 7 2 2 3 Fitting The MIDI Upgrade Board 7 2 2 4 Fitting the MIDI Socket 9 2 2 5 Connecting the Filter Cuto...

Page 4: ...ES Unfortunately this chip is no longer made and the design of the SX1000 lends itself to stressing the output drivers of the M110 amongst other things As a result together with age the M110 often die...

Page 5: ...he instructions are presented as tick lists Follow each item in the list and tick them off as you go That way you can go away and return to the installation and know exactly where you were 2 1 Prepara...

Page 6: ...y soft surface for example a table covered in a large towel 2 2 Step by Step Installation Once you are all set up and ready to go proceed with the following steps Throughout these instructions it is a...

Page 7: ...t the metal panel on the rear face Use a towel or pillow to protect it 2 2 2 Removing The Keyboard Remove the two or four screws holding the keyboard in place Move the keyboard mechanism towards the f...

Page 8: ...esolder the IC socket used for the M110 Fit the new IC socket Solder each pin making sure there are no solder bridges or dry joints Remove the six 5k6 resistors blue green red gold that sit next to ea...

Page 9: ...a single 15mm diameter hole in the rear panel plus two 3mm diameter holes each side to match the socket supplied Fit the MIDI socket into the rear panel using the two black screws provided 2 2 5 Conne...

Page 10: ...shape closest to a square wave Turn off and disconnect from the mains power socket 2 2 7 Replacing The Keyboard Turn the keyboard over and slide it back into the wooden base Refit the screws inside t...

Page 11: ...d set up a voice Operate the MIDI controller and check the synth responds to the MIDI messages Once you are satisfied with the operation of your modified synth you may wish to sell your M110 chip to a...

Page 12: ...3 2 MIDI Playing Playing the synth over MIDI is very easy The MIDI Upgrade receives messages on MIDI Channel 1 This cannot be changed Connect your synth to a MIDI device keyboard computer sequencer et...

Page 13: ...lt 4 OMNI OFF MONO Mode Messages x Altered x Note Number True Voice 1 127 Velocity Note On x Note Off x After Key x Touch Channel x Pitch Bender o 2 semi 14 bit Control Change 1 o Mod Wheel Prog x Cha...

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