YAMAHA MG 24/14FX with SMPS Schematics?

[ARI]

Hello everyone!
I have YAMAHA MG 24/14FX with Switch Mode Power Supply and I need the schematic to fix it.
I could only find one without switch mode power supply.

Can anyone help? I'd appreciate it! Thanks!

[soundguruman]

Yamaha has been good about supplying schematics and parts. Call the Yam parts depot, and speak to the parts manager. Other than that, very difficult to find one. The power supply may not have been intended to be repaired, but instead replaced. Well, if it's an old unit, likely the capacitors need to be freshened, and go from there.

[Enzo]

I looked on the support site, and both versions of the manual only included a common linear supply, no SMPS.

Yamaha may want to sell you the manual, if so it really would be worth the price. If they'll email you one, all the better.

If they can tell you the SMPS is the same one they use in some other model, I can look up the schematic for that, possibly.

[ARI]

soundguruman, Enzo! Thanks for the replies.
I have emailed the support. I hope they can send me or tell me where I can get the schematics.

[mozwell]

According to the information i have, the pwoer supply is linear, standard linear 78xx, 79xx regulators.
Service manual is here Professional yamaha : Service Manual free download,schematics,datasheets,eeprom bins,pcb,repair info for test equipment and electronics

LOTS of great manuals & info at this site

[Jazz P Bass]

The few MG24's that I have gotten in where all a linear PS.
Can you take a picture & post it?

[clintronics]

You still need this? I think I got this one

[Jazz P Bass]

That has to be a huge file.
Too big to upload here, at least.
Get "Cute PDF Writer".
It will appear as a printer in print dialog.
"Print" to a pdf file just the power supply pages.
Upload that.

[clintronics]

email me at clint@clintronics.com I'll just email it to you

[mozwell]

schematic is here
Professional yamaha : Service Manual free download,schematics,datasheets,eeprom bins,pcb,repair info for test equipment and electronics
download all the parts & then open the rar file......

by the way, huge number of schemtics on this site......

[Jazz P Bass]

That schematic does not show the SMPS in question

[clintronics]

which section/part are you looking for? I know how to do a screen shot

[Jazz P Bass]

The Switch Mode Power Supply is what the original postee is after.

[clintronics]

Yamaha MG24 14FX power supply

[Enzo]

That is the linear supply that everyone has drawings for. The original poster says his unit has an SMPS.