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Model  8-434 

ver. 1.0 

 
 

 
 

INSTALLATION MANUAL 

 

 

 

© 2009 CHD Elektroservis 

Содержание VS-MIDI

Страница 1: ...7 Model 8 434 ver 1 0 INSTALLATION MANUAL 2009 CHD Elektroservis ...

Страница 2: ...tion 3 2 MIDI interface installation 4 2 1 Releasing of the instrument cover 4 2 2 MIDI connectors montage 5 2 3 Montage of supply bunched cables 7 2 4 LED indicator montage 8 2 5 Montage of signal bunched cables 9 2 6 Interface board placement 12 2 7 Assembling of interface 13 2 8 Finishing of installation 14 3 Changes and new functions 15 4 Limitations of instrument usage 15 5 DAC VCO calibratio...

Страница 3: ...e including screws etc 5 CD ROM with the user and installation manuals and software 1 2 GENERAL INFORMATION The installation of all interface components is easy If you follow the instruction from this manual there will be no major problems during the installation procedure All original features of Vermona Synthesizer instrument are kept The instrument can be used the same way as before the retrofi...

Страница 4: ...nstrument before pic 2 1 and after pic 2 2 the interface installation Pic 2 1 Original block schematics of the instrument GLIDE CV MEMORY GATE GEN VCO 1 VCO 2 VCF VCA LFO EG GENERAL TUNE MOD MOD ADSR LFO GATE ADSR ADSR OUT UTS Pic 2 2 Connection of interface to the instrument 2 1 RELEASING OF THE INSTRUMENT COVER a Unscrew the two screws from the front panel of the instrument pic 2 1 1 Do not lose...

Страница 5: ...I IN and MIDI OUT connectors montage Couple of facilities is here If you do not want to mechanically damage panel of the instrument install only MIDI IN connector replace headphones socket obn rear panel with MIDI IN socket MIDI output stays unconnected in that case see pic 2 2 1 If you want to keep headphones connector operational and instrument s panel without additional holes MIDI cables can be...

Страница 6: ...lly so as to not drill the parts and components inside the instrument pic 2 2 4 Pic 2 2 3 Pic 2 2 4 160 22 5 32 30 c Clean the edge of the holes with small rasp Also clean the holes from the inside after the turning over the front cover d Clean all metal sawdust and raspings from the inside of the instruments they can cause short circuits or serious electrical damage if left in the instrument Plea...

Страница 7: ...ple see pic 2 2 2 2 3 MONTAGE OF SUPPLY BUNCHED CABLES Supply bunched cables is equipped with flat five pin connector Four wires of bunched cables Nr 2 to 5 must be connected to instrument s power supply board as displayed on pic 2 3 1 Used solder lugs on power supply board shows pic 2 3 2 Pic 2 3 1 Connection of supply cable bundle and LED X2 12V 12V 20V GND red LED green LED 20V GND POWER SUPPLY...

Страница 8: ... 3 2 d Solder the red cable Nr 4 to supply voltage 12V solder lug 4 12V pic 2 3 2 e Solder the blue cable Nr 5 to supply voltage 12V solder lug 5 12V pic 2 3 2 2 4 LED INDICATOR MONTAGE Original LED which indicates power on status of the instrument has to be replaced with two color LED This LED is fixed to cable Nr 1 of supply bunched cables Procedure is as follows a Unsolder leads of original LED...

Страница 9: ...new LED Isolate the connection with the insulation tube and heat it until it shrinks tightly to the cable and LED s lead pic 2 4 8 The tube can be heated with a hot flue pistol for example Pic 2 4 7 Pic 2 4 8 2 5 MONTAGE OF SIGNAL BUNCHED CABLES Signal bunched cables is equipped with flat seven pin connector Wires of bunched cables must be connected to instrument s VCO VCF VCA a EG boards as displ...

Страница 10: ... this publication may be reproduced in any form without the written permission of CHD Elektroservis 10 Pic 2 5 1 Connection of signal bunched cables X1 1 2 3 4 5 6 7 UTS EG VCO VCF VCA EG BOARDS VCF VCA Gate red yellow green blue GND black white CV red Pic 2 5 2 Placement of signal bunched cables Pic 2 5 3 Solder lugs on VCO board ...

Страница 11: ...perational amp IS1 on VCO board pad 1 CV c Solder shielded cable Nr 3 white the other wire of shielded twin lead to UTS signal on VCO board solder lug 3 UTS d Solder the black cable Nr 2 ground shielding to ground potential on VCO board solder lug 2 GND e Solder the red cable Nr 7 to signal GATE on VCO board solder lug 7 Gate Pic 2 5 4 Solder lugs on EG board f Unsolder two blue cables from solder...

Страница 12: ... cable Nr 6 VCA of signal bunched cables to this lug h Original blue cables which related EG VCF VCA boards can be fully removed or it can be retained in the instrument but it is necessary to insulate them in this case so that no short occurs in the instrument 2 6 INTERFACE BOARD PLACEMENT a Board of the interface will be placed left on rear panel inside the instrument pic 2 6 1 Cleanse and degrea...

Страница 13: ... is unambiguously given by the connector lock pic 2 7 1 b Put the five pin connector of supply bunched cables to plug right on the interface s board Orientation of the connector is unambiguously given by the connector lock pic 2 7 1 c Put two two pin connectors of MIDI cables to plugs right on the interface s board Orientation of the connectors is unambiguously given by the connectors locks Be sur...

Страница 14: ... Detection of VCO board version Older version of VCO board 1 has operational amp B081 it has 8 leads on position IS1 and values of R24 and R25 resistors are 220kΩ Newer version of VCO board 2 has operational amp A109 it has 14 leads on position IS1 and values of R24 and R25 resistors are 22kΩ Type of operational amp is printed directly on its cover and values of the resistors can be measured with ...

Страница 15: ...es simultaneously If there are any MIDI commands Note On Off received the interface take over the control of the VCO VCF and VCA circuits of the instrument and the instrument s own keyboard can not be used yet Instrument s VCO is fully detuned in that case If there is a request to use own instrument s keyboard again reset the interface e g switch the instrument off wait for a while and then switch...

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