STC-3P - EQ- Preamp - Low Output/Preamp bypass switch

[Snoty]

Hi all,
I bought a STC-3P for my old Warwick Corvette Standart. It has passive MEC Pick UPs installed. The installation and wiring of the electronic worked well and fast. The Warwick sounds really a lot better now. But there is a little problem. The output is really low. Its lower than it was with the passive MEC tone control. Is there something wrong? Should it not be louder with the preamp? If yes where to start the fault analysis?

And i have a nother question. I want to install a switch for emergency, if the battery dies during a rehersal or gig. I havea "göldo EL012 Mini Switch on/off/on" from another Project . Can i use this?
I want to bypass the preamp. No tone controls, just the output of the pickups to the output jack. Like i said only for emergency. Where do i have to wire the switch? Between the ballance out -> preamp (grey in the wiring diagramm)?

thanks for all answers.
I hope i made myself clear, sorry my english isnt very well

 

[Funkfingers]

Re: STC-3P - EQ- Preamp - Low Output/Preamp bypass switch

Welcome to the forum.

First and most obvious question, before you begin disconnecting or modifying anything, how old is the 9v battery that powers the SD/Basslines PCB?

What were the resistance values of the original Warwick/MEC pots?

An EQ Bypass switch (à la Warwick active instruments) would go in circuit immediately before the EQ PCB. The output/return wire returns to the second pole of your DPDT on/on switch.

In my opinion, there should be no need for the "emergency" switch. The battery should never be allowed to get into a state when it might need replacing while you are in a working situation.

The usual telltale signs that the battery needs replacing are more background hiss, "ragged" sound and increased fartiness. (Sorry but there is no better adjective.​)