Yamaha SF-600
- Thread starter tmccar
- Start date
F
Funkfingers
Guest
Re: Yamaha SF-600
Welcome to the forum.
If I recall correctly, The old Super Flighter series was dual humbuckers, volume and tone pot per pickup, like a Les Paul.
Thirty five years ago, coil mode and phase reversal toggle switches were the height of fashion. I do not recall the entire SF range having these.
Welcome to the forum.
If I recall correctly, The old Super Flighter series was dual humbuckers, volume and tone pot per pickup, like a Les Paul.
Thirty five years ago, coil mode and phase reversal toggle switches were the height of fashion. I do not recall the entire SF range having these.
Re: Yamaha SF-600
It has a "distortion" switch and "active electronics" which require a 9v battery. Is this what you are referring to?
It has a "distortion" switch and "active electronics" which require a 9v battery. Is this what you are referring to?
F
Funkfingers
Guest
Re: Yamaha SF-600
A-ha! THAT model.
Three way selector, master vol., master tone, Distortion circuit?
A-ha! THAT model.
Three way selector, master vol., master tone, Distortion circuit?
kramersteen
PowerMetalRaph
Rand-O-Monium
New member
Re: Yamaha SF-600
Pic?
Pic?
F
Funkfingers
Guest
Re: Yamaha SF-600
Er, two fundamental requires of a photograph supplied for illustrative purposes.
1) It should be in focus.
2) It should show everything that needs to be seen.
Er, two fundamental requires of a photograph supplied for illustrative purposes.
1) It should be in focus.
2) It should show everything that needs to be seen.
Re: Yamaha SF-600
Hi - sorry about the previous pics. I hope these are more helpful:
See the black and blue leads (both with red insulated core) that are disconnected - they are coming from the pickups. See also the 6-way switch (the shielding which is common to both black and blue is connected to the earth terminal of the switch).
The middle 2 terminals of the switch had been connected together and I have removed this connection.
A closer shot of the 6-way switch.
Zoomed-out shot of the whole cavity
Hi - sorry about the previous pics. I hope these are more helpful:
See the black and blue leads (both with red insulated core) that are disconnected - they are coming from the pickups. See also the 6-way switch (the shielding which is common to both black and blue is connected to the earth terminal of the switch).
The middle 2 terminals of the switch had been connected together and I have removed this connection.
A closer shot of the 6-way switch.
Zoomed-out shot of the whole cavity
Re: Yamaha SF-600
More on this:
View attachment 63944
This is the wiring diagram I got from Yamaha. But it does not show the second switch that is in my guitar - and that switch is connected to the points I have encircled with the red pen.
If anyone can throw light on this, I would be grateful. Anyway, what I have is a guitar with the bridge pickup working and it works fine through the overdrive switch. But the neck pickup is not getting overdriven.
View attachment 63944
This is the wiring diagram I got from Yamaha. But it does not show the second switch that is in my guitar - and that switch is connected to the points I have encircled with the red pen.
If anyone can throw light on this, I would be grateful. Anyway, what I have is a guitar with the bridge pickup working and it works fine through the overdrive switch. But the neck pickup is not getting overdriven.
F
Funkfingers
Guest
Re: Yamaha SF-600
Link not working.
Link not working.
F
Funkfingers
Guest
Re: Yamaha SF-600
Meanwhile, even in the final zoomed out photograph, there is one switch still not visible. This is critically important. The Yamaha SF600 normally came with two mini toggle switches. Your example has three.
Obviously, one mini switch engages the overdrive/boost circuit.
In all probability, the second switch handles simultaneous coil split of both pickups.
The third switch could fulfil any number of functions.
Sketches of the connections made to each switch might help.
Meanwhile, even in the final zoomed out photograph, there is one switch still not visible. This is critically important. The Yamaha SF600 normally came with two mini toggle switches. Your example has three.
Obviously, one mini switch engages the overdrive/boost circuit.
In all probability, the second switch handles simultaneous coil split of both pickups.
The third switch could fulfil any number of functions.
Sketches of the connections made to each switch might help.
Re: Yamaha SF-600
Ok, here is the diagram again:
More pics:
Here you can see the board that I have highlighted in the wiring diagram.
Here can be seen the blue lead that was shown disconnected in an earlier shot - here I have connected it to one of the terminals on the output jack - and this has got me up and running with the one pickup.
Thanks for looking!
Ok, here is the diagram again:
More pics:
Here you can see the board that I have highlighted in the wiring diagram.
Here can be seen the blue lead that was shown disconnected in an earlier shot - here I have connected it to one of the terminals on the output jack - and this has got me up and running with the one pickup.
Thanks for looking!
F
Funkfingers
Guest
Re: Yamaha SF-600
My mistake. The third "switch" is actually the MIJ output jack socket.
My mistake. The third "switch" is actually the MIJ output jack socket.
F
Funkfingers
Guest
Re: Yamaha SF-600
The DPDT switch for the Overdrive/Boost PCB should be soldered directly to the board. If you use a brand new on/on switch, orientation will not matter. The tracks in the PCB will take care of that.
The second DPDT switch is, indeed, simultaneous coil split for both humbuckers EXCEPT the relevant conductor wires from each pickup are not connected to the switch.
The DPDT switch for the Overdrive/Boost PCB should be soldered directly to the board. If you use a brand new on/on switch, orientation will not matter. The tracks in the PCB will take care of that.
The second DPDT switch is, indeed, simultaneous coil split for both humbuckers EXCEPT the relevant conductor wires from each pickup are not connected to the switch.
F
Funkfingers
Guest
Re: Yamaha SF-600
Switch 1 should rest physically on the PCB. Its six terminals should pass through the six holes where the flying cables are currently soldered in. (These flying leads are redundant.) It is important to remove the flying leads without damaging the PCB tracks.
Switch 2 should have cables from each of the humbuckers connected to it.
Imagine the switch terminals labelled
A1 A2 A3
B1 B2 B3.
A1 and B1 are not used. A2 and B2 are cross-linked and then connected to ground via the tab around the switch collar. The coil split wire from one pickup is soldered to terminal A3. The coil split wire from the second pickup is soldered to B3. These wires should not come into direct contact with each other.
Considering the age of the guitar, the likely condition of the internal contacts within the two mini switches and the old solder all over their contacts, it would be advisable to invest in new switches.
Switch 1 should rest physically on the PCB. Its six terminals should pass through the six holes where the flying cables are currently soldered in. (These flying leads are redundant.) It is important to remove the flying leads without damaging the PCB tracks.
Switch 2 should have cables from each of the humbuckers connected to it.
Imagine the switch terminals labelled
A1 A2 A3
B1 B2 B3.
A1 and B1 are not used. A2 and B2 are cross-linked and then connected to ground via the tab around the switch collar. The coil split wire from one pickup is soldered to terminal A3. The coil split wire from the second pickup is soldered to B3. These wires should not come into direct contact with each other.
Considering the age of the guitar, the likely condition of the internal contacts within the two mini switches and the old solder all over their contacts, it would be advisable to invest in new switches.
F
Funkfingers
Guest
Re: Yamaha SF-600
^
Hurry up and read this before it disappears.
^
Hurry up and read this before it disappears.
Re: Yamaha SF-600
Thanks Funkfingers, I have ordered 2 switches. In the meantime, I have wired the existing ones as per your instructions.
But I am only getting output when the overdrive switch is on. Do I need to make a connection from switch2 to the output jack?
Thanks Funkfingers, I have ordered 2 switches. In the meantime, I have wired the existing ones as per your instructions.
But I am only getting output when the overdrive switch is on. Do I need to make a connection from switch2 to the output jack?
Last edited:
