Roland Spirit

[Throstur]

Hohoóóóóóó
I have a very nice solid state amp made in 1981. It is a Roland Spirit and although I am am dedicated tube man I must say that this is one fine amp. I´m having hard time finding diagram/schematic for it. Can anyone help me there.
Merry Christmas to you all
Throstur

[PRR]

What isn't working? If a Roland is working well, you probably don't want to go inside.

> It is a Roland Spirit

There were at least three models.... the model number may be helpful?

Owner manual for the 10 25 40 series:
  http://media.rolandus.com/manuals/SPIRIT-10A_25A_40A_OM.pdf
  
A shop which sells repro manuals for $5-up and seems to have much Roland:
  http://www.stereomanuals.com/man/rep/roland/index.htm

Roland SPIRIT-10 Guitar Amp Service Manual (1982) 1st Edition G2 ROLSPIRIT10-SM 4 total pages (2 intentionally blank) consisting of (1) single-side printed 11in x 17in sheet with no additional covers or binding. Overall quality is Very Good to Excellent. Normally folded and mailed in ordinary business envelope.
Roland SPIRIT-30 Guitar Amp Service Manual (1981) Also SPIRIT-50. 1st Edition G2 ROLSPIRIT30-SM 4 total pages consisting of (1) double-side printed 11in x 17in sheet with no additional covers or binding. Models covered: SPIRIT-30, SPIRIT-50. Overall quality is Very Good to Excellent. Normally folded and mailed in ordinary business envelope.
Roland SPIRIT-50 Guitar Amp Service See SPIRIT-30       
Roland SPIRIT BASS-15 Bass Amp Service Manual (1982) 1st Edition G2 ROLSPBASS15-SM 4 total pages consisting of (1) double-side printed 11in x 17in sheet with no additional covers or binding. Overall quality is Very Good to Excellent. Normally folded and mailed in ordinary business envelope.
Roland SPIRIT BASS-30 Bass Amp Service Manual (1982) Also SPIRIT BASS-50. 1st Edition G2 ROLSPBASS30-SM 4 total pages consisting of (1) double-side printed 11in x 17in sheet with no additional covers or binding. Models covered: SPIRIT BASS-30, SPIRIT BASS-50. Overall quality is Very Good to Excellent. Normally folded and mailed in ordinary business envelope.
Roland SPIRIT BASS-50 Bass Amp Service See SPIRIT BASS-30     

[Throstur]

What isn't working? If a Roland is working well, you probably don't want to go inside.

Hi PRR. It´s a Spirit 30 and it´s working fine. I am just interested to find out why this one sounds so fine, even breaks up like a tube amp at higher volumes!

[PRR]

Nothing exotic or erotic. Good 1980s Japanese design. A lot like an oversize effects pedal.

DO NOT SHORT THE OUTPUT!! There is NO protection for the power transistors.

Input amp is NFET-PNP working from quite high voltages. Volume pot, and clipping diodes with high part-numbers suggesting a late revision. NFET buffer. Fender-like tonestack. Tone recovery with another NFET-PNP pair. More clipper diodes. Reverb feed, NPN buffer, reverb mix, power amp.

Spirit 30 and Spirit 50 differ in supply voltages, appropriate gain change, and frills. The 50 has overdrive knob and Pre-Out Main-In jacks. The connections are on the PCB, just not used on the 30.

I got the manual from the link above:
http://www.stereomanuals.com/man/rep/roland/index.htm
The site has instructions for PayPal-ing an order. Get his pay-to email address. Be sure your PayPal account has your proper mailing address. Send 5 bucks with this info in the "Additional Notes":
Roland SPIRIT-30 Guitar Amp Service Manual
Item #101219090038  $4.00  Shipping $1.00  TOTAL $5.00