Service manuals, schematics, eproms for electrical technicians
AUDIO RESEARCH SP3A PREAMPLIFIER 1974 SCH
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AUDIO
SERVICE MANUAL
AUDIO
SERVICE MANUAL
If you get stuck in repairing a defective appliance download this repair information for help. See below.
Good luck to the repair!
Please do not offer the downloaded file for sell only use it for personal usage!
Looking for similar audio manual?
Good luck to the repair!
Please do not offer the downloaded file for sell only use it for personal usage!
Looking for similar audio manual?
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AUDIO RESEARCH SP-3A SP3A 1974 SP
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Relevant AUDIO forum topics:
Sziasztok!
Adott egy kínai végfok, amiben a ventillátorok audio zajt keltenek a kimeneten teljesen letekert hangerőnél is. Ha lehúzom őket a tápról, akkor a zaj megszűnik. Mit lehetne ezzel kezdeni? Hurkoljam át párszor a vezetékeiket egy ferritgyűrűn, vagy mi lenne erre a jó megoldás?
Adott egy kínai végfok, amiben a ventillátorok audio zajt keltenek a kimeneten teljesen letekert hangerőnél is. Ha lehúzom őket a tápról, akkor a zaj megszűnik. Mit lehetne ezzel kezdeni? Hurkoljam át párszor a vezetékeiket egy ferritgyűrűn, vagy mi lenne erre a jó megoldás?
Hi
I'm looking for a schematic diagram for this equipment:
Professional Power Amplifier XA-1000
The main fuse was blown and according the owner it blowns again after replacement.
He used a 40 amp fuse. The original fuse is not around anymore and there is nothing written outside on the label. So it's somewhat a lottery about the correct fuse rating.
Anyway, I would like to repair this equipment but without a diagram it would be a pain and nearly impossible.
Tryed to find a diagramwith Google search - negative. Also the manufacurer ist unknown this days.
Maybe a reader has more information aboutb this.
Thanks a lot
Redwood (74)
https://www.simplysoundandlighting.co.uk/bst-xa1000-1000w-power-amplifier
I'm looking for a schematic diagram for this equipment:
Professional Power Amplifier XA-1000
The main fuse was blown and according the owner it blowns again after replacement.
He used a 40 amp fuse. The original fuse is not around anymore and there is nothing written outside on the label. So it's somewhat a lottery about the correct fuse rating.
Anyway, I would like to repair this equipment but without a diagram it would be a pain and nearly impossible.
Tryed to find a diagramwith Google search - negative. Also the manufacurer ist unknown this days.
Maybe a reader has more information aboutb this.
Thanks a lot
Redwood (74)
https://www.simplysoundandlighting.co.uk/bst-xa1000-1000w-power-amplifier
Üdv Kollegák!
Vettem egy pár a cimben szereplő hangfalat a hétvégén.. Nincs semmi infóm róla,azért vettem meg meg nagyon tetszett a hangja a kis mérete ellenére, és kicsit olyan érzésem támadt, mintha orosz hangfal lenne: a hátlapján a betűtipusok, a betű festéke, a beleütött gyáriszám...
A neten egy norvég oldalt találtam a gyártmányt beütve, de eléggé hiányos a a norvég nyelv ismeretem, :-)
Csinti
Hello, I got a problem with my Sony Receiver STR-DE 225.
There´s a sudden interruption of Audio in non defined intervalls - may be once ore 6 times during appr. 5hrs operation.
Interruption does not depend on Volume. Connection cables and speakers I´ve checked.
There´s a loud crack in both speakers, display shows for short time "PROTECTION".
After switching off and on again, everything operates normal until next interruption.
I removed from the inside of the receiver a lot of dust with a vacuum cleaner, but this didn´t help.
Unfortunately Sony has no documents for this device, as it is To "old" (1996), or could give me a hint,
in what cases "PROTECTION" might appear.
Is there anyone to give me a clue? Thanks
There´s a sudden interruption of Audio in non defined intervalls - may be once ore 6 times during appr. 5hrs operation.
Interruption does not depend on Volume. Connection cables and speakers I´ve checked.
There´s a loud crack in both speakers, display shows for short time "PROTECTION".
After switching off and on again, everything operates normal until next interruption.
I removed from the inside of the receiver a lot of dust with a vacuum cleaner, but this didn´t help.
Unfortunately Sony has no documents for this device, as it is To "old" (1996), or could give me a hint,
in what cases "PROTECTION" might appear.
Is there anyone to give me a clue? Thanks
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