I need a circuit diagram for a Roland MA-15D speaker please?
It's a Chinese made Roland and no service information is available as when a fault is found the main board is replaced, eliminating the need for service information.
I would check that it is a stereo out jack and not mono. If it is a stereo out, check that both input phonos work. If they do, replace the faulty socket or damaged pcboard.
11/17/2022 6:14:26 PM •
Roland Music
•
Answered
on Nov 17, 2022
MY Roland Handsonic's digital display is gone
Hell,
there is no display on your Roland Handsonic because the screen inverter or screen board panel is faulty. This has to be replaced for you to see your digital display again.
So its either you use it like that without the display or you take it to a repairer for fixing.
Take care.
7/11/2022 8:54:01 AM •
Roland Music
•
Answered
on Jul 11, 2022
No sound from Roland E80 speakers
well it needs service, using the service manual ,tools and skills'
so get it service by a shop.
not told at all how the kbd is connected and to what.
just he word speakers told?
use the left rear, speaker line out L/R fails> (if yes bad external amp speakers
or if using the internal speakers those are actually bad both?
then the speakers inside are bad or the amp that drives the 2 are bad inside, we test those to find this out.
inside speaks use inside speakers amps
the to jack 1/4 inch inch are not amps, those are line out jacks.
100mV signals that only an external amp can juse, directly
my guess, is the internal amp is bad.
it needs service, by an electronic tech, as that is what it is.
or blown fuse inside or things directly related to just the amp inside.
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