Spectra 180 solid state amolifier

[WhydidIbuythisthing?]

Does anyone have the full schematic for the jmf Spectra 180A solid state.. The chorus and reverb are not working. Thank you.

[Mars Amp Repair]

Hello WhyDidIBuy,
That schematic is available on 'Elektrotanya.com under Spectra 180A'.

[Mars Amp Repair]

Oh, it looks like that is only the power amp/power supply section of the amp...

[Steve L]

Although it is not labeled as a 180 preamp schematic, this is probably what you have. If not, it will probably be very close.
JMF Spectra used a lot of "common/modular" PC boards like Kustom and others. It is a bit hard to read, but better than nothing.
JMF Spectra 210, 225, 410 Preamp Schematic.pdf

[WhydidIbuythisthing?]

Thank you. I have a chorus reverb problem. Footswitch works but it doesn't turn off reverb or engage chorus. Any suggestions?