Roland SPA-240

[IsakAlexander]

I recently bought two faulty ones of this model.
Both had burned resistors on the input board. Tried changing for new ones on one and measured transistors before powering up. Everything seemed fine so decided to give it a go.
When powering up, the protection lights are on but they turned off and output relay came on. So far so good but after a minute it sparked in one of the driver transistors and right channel output devices shorted.

Gave up the repair and delivered them to a local repair shop. But since these are from the early eighties and some transistors are out of production they could not repair them.

I like these two heavy old school amps so I´m hoping someone here could advice on replacement transistors, in case I find a repairman who is willing to take them on.

Here are the ones on the main board according to the manual:

2SK150GR or 2SK270GR
2SC2240GR
2SB649AC
2SD669AC
2SC2238Y
2SA968Y
2SA970GR
2SC1382Y
Output:
2SC2565Y or 2SC2773Y
2SA1095Y or 2SA1169Y

SFOR1G42-S ?

The ones on the input board AP-125 are:
2SC1624Y
2SA814Y

The fried resistors were located on AP-125 board
R21/22/23/24/25/26.

I´ll send the manual by email if anyone care to take a look.

 

[JonSnell Electronic]

I specialize in the impossible and with a manual should be able to source parts and help with a repair. Or repair it for you.
jon@jonsnell.co.uk is my email to receive the manual.
Regards

 

[tiomilo]

i have one spa-240 can you send me the pdf plz eriachio@gmail.com thanks in advance

 

[John Cory]

Hi isak Alex.
I can supply a lot of obsolete spares and/or equivalents fir you.
Can you copy me the service manual?
Regards.
John

 

[manso]

Those looking for service manual, send me pm.