madbeanpedals TrueSoft Manual

TrueSoft TrueSoft
F
UTILITY
X Type:
Build Level: Beginner
Based On: VFE® SPS Switching System™
The TrueSoft 3.4 is the heart of all the VFE SPS projects. It handles the I/O and power for each
circuit. It utilizes a relay-based, soft switching system for silent bypass operation. The TrueSoft
PCB is connected to a separate audio PCB for each VFE SPS project via a soldered ribbon cable
(included).
There are two varieties of the TrueSoft 3.4. The first version includes a voltage inverter for
projects requiring split-rail DC operation. The second version does not include the inverter and is
used with projects that require simple single rail 9v power. The correct version is provided with each
VFE SPS project offered at madbeanpedals at no additional charge.
The TrueSoft PCB does require some through-hole component population. All the surface mount
parts are pre-soldered to the bottom of the PCB.
NOTE: The VFE SPS effects are designed for the 1590BS enclosure. Since that enclosure type is
not widely available, these projects are designated for 125B only. There are paper and Tayda drill
templates available for the 125B in this document.
There is only one user control on the TrueSoft 3.4 PCB. It is a slide switch to select whether the
effect is true bypass or buffered bypass. Enable buffer mode when required for your pedal chain.
Usually one buffered pedal near the start and/or end of a pedal chain is enough to counteract any
signal loss from using multiple pedals with patch cables inbetween.
ALL VFE projects have an alternate momentary bypass mode. When enabled, the effect is only
active while the footswitch is pressed. To enable momentary mode:
1. Wait 5 seconds after the last footswitch activation.
2. Tap the FS twice in quick succession then tap and hold. After a few seconds the bypass LED
will blink rapidly to indicate momentary mode is enabled.
3. To go back to regular bypass mode, just repeat steps 1 and 2.
Terms of Use: You are free to use purchased TrueSoft circuit boards for both DIY and small commercial operations. You may not offer TrueSoft PCBs for
resale or as part of a "kit" in a commercial fashion. Peer to peer re-sale is fine, though.
Technical assistance for is available via the
available to respond via email in a timely and continuous manner, and (2) posting technical problems and solutions in the forum creates a record from which other
members may benefit.
All copyrights and registered trademarks are property of their original owners. Any mention of trademarked or intellectual properties in this documents is purely for
comparative purposes.
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madbeanpedals forum. Please go there rather than emailing me for personal assistance. This is because (1) I'm not always
Last Updated:
April 24, 2024 4:39 PM
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