Roland SH101 Nova Mod
Roland Corporation SH-101 Nova Mod sh-101_novamod Roland Corporation - SH-101 - Nova Mod
Roland Electronic Keyboard SH-101 RolandSH101NovaMod
Roland Corporation SH-101 Nova Mod sh-101_novamod Roland Corporation - SH-101 - Nova Mod
User Manual: RolandSH101-NovaMod
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<<>> EXT AUDIO IN VCF CV IN LFO CLK IN MODULATOR LFO/CLK RATE TUNE FM DC IN Filter VCO MOD WAVEFORM SOURCE MIXER PULSEWIDTH SUB OSC NOISE EXT CLK IN GATE CV IN VCA VCF FREQ RES CV HOLD GATE PHONES OUTPUT OUT ENVELOPE ENV MOD KEYBD A D S R RANGE -1 LFO GATE MAN -2 ENV ENV -2 Trig LFO GATE NORM LO HI POWER VOLUME NOVA SEQUENCER ARPEGGIO LEGATO REST SH-101 ROLAND PW SOURCE EXT AUDIO FM SOURCE AMOUNT PORTAMENTO PORTAMENTO TRANSPOSE BENDER Features: • VCF FM: Amazing new sounds are now added through this feature. Six FM sources are available. • LFO Clock Input: Syncing the Arpeggiator and LFO to external drum modules and sequencers is now possible. As well, interesting feedback loops can be created. • PW Modulation Source Selection: Now you can choose a pulse width source. It is independent from the LFO’s waveform setting. OSC sources are included. • Pulse width to near 0%: Pulse width effects are now made more extreme and powerful. • External Audio Input: The ability to do FM of the VCF by an external audio source or to simply route a signal into the audio path is now provided. Don’t forget feedback loops!! • VCF CV Input: Just plug in a foot pedal or a CV from a midi converter and your SH-101 will sing! • LFO Rate Scalar: Ever hear a bell sound out of a 101? Try this on Hi!! Want a really slow sweep...you got it too! • 1/4” CV/Gate In/Out Jacks: Aren’t we all tired of those miniphono plugs? They should only exist on walkmans. NOVA-MOD Details: Pulse width to near 0% By closing the pulsewidth to a spike, new sounds can be attained by the SH-101. This “spike” wave source is very useful for brightening a bass patch. (A bass patch, with only the sub Osc waveform assigned, can be brightened, but not raised in pitch, by adding a little pulsewidth signal with a manual setting of less than 1% duty cycle.) In another application, in which only full ramp waveform is assigned, manually raising and lowering the spike waveform’s amplitude has been compared to sounding like a wavetable sweep. As well, LFO modulation of the pulsewidth is made more dramatic because of the closer approach to 0%. Pulsewidth Modulation Source Selection A six-way rotary switch enables you to chose the pulsewidth modulation sources independently of the LFO’s waveform setting. This modulation source makes many new and interesting sounds. A randomly modulated pulsewidth is especially unique and pleasant. The PW modulation sources are: LFO Triangle LFO Square LFO Random Sub Osc -1 Octave Square* Sub Osc -2 Octave Pulse * LFO Noise * The Sub Osc Mod sources creates a unique bass enhancement because of their higher frequency and keytracking. The result is a richer and deeper sound. As well, although there are only two sub Osc sources, changing the sub Osc switch -1/-2/-2 results in even further modulation effects. LFO Rate Scalar A three-way toggle switch scales the overall range of the SH-101’s internal LFO Clk (the existing LFO rate slider still functions normally). The scalar settings are Normal/Low/High. In the Low setting, a cycle of 30 seconds can be attained. This is great for mild changes in “trance” type music. In the High mode, up to 1200Hz can be used to create interesting cross-mod bell like sounds. Perfect for “industrial” music and clanging metallic sounds. High mode works especially well when creating a synthetic kick drum patch or short-wave radio sounds a la Kraftwerk’s Electric Cafe and Radioactivity albums respectively. LFO Clock Input A 1/4” jack allows the insertion of an external clock signal to drive the 101’s LFO. This injected signal triggers the LFO but does not change it’s waveform. Buy applying a clock, LFO AND arpeggiator are both synced to the external source. This makes for very moving and groovy patterns with only a drum box and NOVA-MODed 101. A particularly nice application is to modulate the VCF Cutoff with a Random LFO while playing the sequencer. Of course you can, at the same time, inject a separate clock into the arpeggiator via the 101’s Ext. Clk In Jack. This will enable you to run the arpeggiator and LFO at different speeds (hopefully related in some way). As a bonus, audio can be injected to drive the LFO. A simple trick is to patch the headphone output into the Ext. LFO Input. This feedback loop makes for sounds that can be mildly distorted to heavily distorted by simply adjusting the VCF’s Mod amount. [No need for an external distortion processor!] This effect is great for slow sweeps with a resonating filter setting. Very minimoog-ish. External Audio Input A 1/4” jack and toggle switch allows external audio to be injected. A rotary pot controls the amplitude of the injected signal. It can be routed to one of two sources: 1. directly into the filter along with the OSC’s waveforms. External processing of audio through the VCF and ENV is a typical feature on some synths however a separate trigger can be applied to fire the SH-101’s envelope. 2. into the VCF’s cutoff modulation point. (An external FM source) VCF CV Input An external CV can be applied to the 101 via this 1/4” jack. This feature is typical on a Juno-60, Jupiter 4 and ProOne. A MIDI controller converted to a CV or an “expression” foot pedal are typically connected here. VCF FM VCF FM is the most powerful NOVA-MOD feature. It can be used in moderation to simply add brightness to a bass patch with low frequencies (due to subtractive synthesis). Or it can be used to create powerful cross-mod sounds that are difficult to explain...they must be heard. These sounds are somewhat aggressive, distorted, bell like but most importantly, not attainable on a regular SH-101. These sounds are similar to those heard on a MiniMoog with its third LFO assigned. One example: Dial a patch with only a ramp waveform assigned but at the same time, modulate the VCF Cutoff with the Pulsewidth. Manually change the pulsewidth to vary the FM effect. It is quite unique. You can then switch in Sub Osc -2 Oct. Pulse as the FM source then adjust the -1oct/-2oct/-2oct switch to change the sound further. Finally swing the Pulsewidth waveform as the FM source but switch from Manual to LFO modulation and then play with the PW Mod’s waveform. A rotary pot controls the amount of modulation. A six-way rotary switch selects the FM Source: Pulse waveform Ramp waveform -1 Octave Sqr waveform* -2 Octave Sqr waveform* -2 Octave Pulse waveform* Noise waveform * As well, although there are only two Sub Osc Sources, the sub Osc switch -1/-2/-2 changes the sound, giving even more variety. ENV #2 A second Attack/Decay envelope. (To be developed). This is in the works but hopefully will be available soon. 1/4” CV/Gate In/Out Jacks The existing 1/8” jacks are replaced by 1/4” jacks. Nothing special here except convenience. NOVA-MOD Parts List 2 6 position Rotary Switches (Radio Shack units work fine but 3” long shafts must be cut. As well, pins must be flattened to prevent interference with keyboard action, shims may be required to lower keyboard.) Roland 4 position switches (pn 13119303 SRM1034-K15) may be used also but the switches must be “adjusted” to swing 6 positions. The same clearance considerations must be made with respect to the key action however these switches will accept the correct Roland knobs. 2 100K Rotary Pots. (Radio Shack units work fine but 3” long shafts must be cut. As well, pins must be flattened to prevent interference with keyboard action, shims may be required to lower keyboard.) Roland pots (pn 13219274 EVH-5XAP20A15) may be used. The same clearance considerations must be made with respect to the key action however these pots will accept the correct Roland knobs. 1 DPDT Switched 1/4” jack. 2 1/4” Jacks with shorting contact 4 1/4” Jacks 1 SPDT toggle switch with center off position 1 4.7 uF 10V cap. 1 150K resistor 3 100k resistor 1 50k resistor 4 knobs (Roland PN 016H071) NOVA-MOD Instruction: note: There are only four circuit board assemblies inside an SH-101 that will be referred to in this instruction.. They are formally referred to as the Control Board, Synth Board, Bender Board, and Jack Board (a). (The Control Board contains most of the sliders and switches. The Synth Board contains most of the electronic components. The Bender Board is small and resides near the bender. The Jack Board has the CV and Gate 1/8” jacks connected to it). There is also the Keyboard (the assembly with the black and white piano keys). Read Important Points before starting!! Tools: solder iron, de-solder tool, knife, modellers saw, drill press, wire strippers and cutters. 1. 2. 3. 4. 5. Remove all knobs.(rotary and linear) Remove back panel. (two of these black screws have a fine thread, note their position) Remove screws to Synth Board and Bender Board. Cut two wire ties (one on Keyboard, one on Synth Board near battery holder and Jack Board) Disconnect two header connectors on Synth Board (these headers are on the battery holder side of the Synth Board. All other header connectors and wire interconnects can remain connected) 6. Disconnect the two header connectors that run to the Keyboard. (disconnect at Keyboard end of cables) 7. Gently bend the Synth Board up and remove screws holding Control Board. 8. Remove all screws to Bender Board 9. Remove Synth and Control board assembly. (now is a good time to clean/repair any pots/switches) 10. Remove Keyboard. 11. Drill out holes. (see figure XX) <
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