Vintage Synth Repair

Hi
 
I've done a search of the Yamaha Service Manual website but the PF15 is not
listed.  The two nearest are the PF12 and the PF1500.
 
Most of this type of Yamaha seem to come apart by removing 4 or 6 screws
from the bottom panel, 2 or 3 from each end.  The top cover then hinges up
from the front.  If you simply want to clean a key - that is the plastic
bits - you need to remove each key from the key-frame assembly.  The method
varies from model to model, but tends to be a need to lift the back of the
key and then sliding forward and lifting upward.
 
If you have a problem with faulty key operation and want to clean the
contacts this is a different ball game.  You will need to remove the PCB
underneath the keys, how you do this varies also from model to model.
Without the service manual you may have a problem working out this is done
unless you are familiar with all the various systems in use.  Some can be
done from underneath the key frame, others need you to remove all keys to
gain access to the contacts.
 
Regards
Brian G3OYU
www.g3oyu.co.uk
 
  _____  

From: vintagesynthrepair@yahoogroups.com
[mailto:vintagesynthrepair@yahoogroups.com] On Behalf Of hodder321
Sent: Tuesday, 17 March 2009 20:38
To: vintagesynthrepair@yahoogroups.com
Subject: [vintagesynthrepair] Help with Yamaha PF15 - Need info
 
I have a Yamaha PF-15 Professional Electronic Piano that
needs the keys cleaned.

I have a copy of the owners manual but need to know how to
open and clean under the keys, etc. The owners manual don't
have this info. I see hinges on the back to somehow tilt
up the top but I don't see what screws need to be removed
to open and what exactly lifts up.

Can someone explain how to open one up or know of a free PDF
repair manual for this model. The PF-10 Electronic Piano may
be the same.

Fitting instructions for a PF-15 KENTON MIDI Kit with step
by step fitting guide plus diagrams of where to connect what
would also help me.

Also what was the list price on this Electronic Piano when it
was new? The PF-15 was Yamaha's flagship FM-synthesis
electronic piano when new.