The Redmere Soloist
Signal and Low Voltage Power Supply Wiring
IMPORTANT: These drawing and notes are provided for interest only and are not guaranteed to be accurate. Use at your own risk and discretion. The equipment shown contains lethal mains voltages and should only be worked on by people with suitable training and experience. Schematics and layouts are typical but will vary.
The first drawing is taken from a chassis with no serial number made sometime in 1978. The second had factory stickers ranging from 21.2.79 (assembly) to 18.5.79 (test). There are minor differences in wire colours and board issue numbers.
Note that the 220R resistors feeding +/-12v to the input buffer have been moved onto the PCB. The DI isolating transformer was mounted onto a new PCB numbered S-12-x rather than being screwed to the back panel.
The later chassis didn't have Molex plugs fitted to the wiring loom, the wires were soldered directly onto the circuit board pins.
Wiring to the back panel footswitch D-type connectors was different on the later unit, so one of them was wrong and untested (or they redesigned the footswitch). Both drawings show the pin-out of the 1978 chassis but check the connections on the footswitch if you have one.
PRINTING
Wix (bless 'em 😖) have changed their image format - again - to avif just to make them awkward to print. Unless you want to buy a converter, the easiest way to make a hard copy is:
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Left click when the magnifying glass icon appears and wait for the picture to clear.
(On a touch screen, tap on the image). This will display a higher res file. -
Right click and 'save image as' to somewhere as an avif file.
(On a touch screen, touch and hold down to view the menu) -
Upload the saved file to your Google Drive.
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Open the file and use the print menu to make a hard copy or save as a pdf.
1978 Unit (as found)
1979 Unit (as found)
