Yamaha CLP550 schematic anyone?

Moderators: Thirteen, rick, Mark Bassett

Yamaha CLP550 schematic anyone?

Postby KBnewbie » Mon Nov 15, 2010 10:46 pm

Hi,
Got a Yamaha CLP550 electric piano from the 80's that is in pristine condition but sadly not working.
Tried googling to find a schematic with no luck...owners manual is available...thought that I would try here for schematic source.
Anyone know where I can download one or purchase one?
All four internal fuses are OK....I'm suspecting one of the two relays...a schematic would help trace things though.
Cheers,
Noel
Noel Bourne
KBnewbie
Registered User
Registered User
 
Posts: 28
Joined: Fri Jul 03, 2009 4:55 pm
Location: Brisbane Australia

Re: Yamaha CLP550 schematic anyone?

Postby Thirteen » Tue Nov 16, 2010 7:31 am

Look for shorted tantalum capacitors....
Steve Jones
User avatar
Thirteen
TRM Endorsed
TRM Endorsed
 
Posts: 1263
Joined: Fri Dec 01, 2006 5:08 pm
Location: Sydney

Re: Yamaha CLP550 schematic anyone?

Postby Futureman » Tue Nov 16, 2010 9:48 am

Thirteen wrote:Look for shorted tantalum capacitors....


Thats my Mantra..
Mike de Vrees

Purveyor of old stuff
User avatar
Futureman
Frequent Contributor
Frequent Contributor
 
Posts: 991
Joined: Wed Mar 19, 2008 4:47 pm
Location: Sydney

Re: Yamaha CLP550 schematic anyone?

Postby KBnewbie » Tue Nov 16, 2010 4:14 pm

Thirteen wrote:Look for shorted tantalum capacitors....


Hi Steve,
I have isolated the problem down to the main board.
The stereo power amp is OK and the power supply rails appear right.
No tantalum caps to be seen on the main board..lots of 0.1uf decoupling disc caps, other disc caps and bipolar and electrolytic cans.
Might be getting beyond my technical capabilities at this point without a schematic.
It is a shame as the unit is pristine with a good weighted 88 key action.
Probably offer it up for sale as is or for parts if I dont make any headway.
Thanks anyway Steve.
Cheers,
Noel
Noel Bourne
KBnewbie
Registered User
Registered User
 
Posts: 28
Joined: Fri Jul 03, 2009 4:55 pm
Location: Brisbane Australia

Re: Yamaha CLP550 schematic anyone?

Postby KBnewbie » Wed Nov 17, 2010 1:20 pm

Now offered for sale as is might be OK as a midi controller for someone who wants 88 full size weighted keys as the midi out function does work.
Also been offered a hard copy of the service manual with schematics ex UK at 32 GBP.inc post.
Cheers,
Noel
Noel Bourne
KBnewbie
Registered User
Registered User
 
Posts: 28
Joined: Fri Jul 03, 2009 4:55 pm
Location: Brisbane Australia


Return to Vintage Synth Forum

Who is online

Users browsing this forum: No registered users and 1 guest


cron