Turns out this was not the manual i was looking for. The concertmate 670 keyboard i have is a "Realistic" model made for Radio Shack and none of the diagrams on the owners manual i received matches up. HOWEVER, I must say the service Owners Manual provides was fast and efficient by being available online. The manual was in good readable condition and easily downloaded.
Thank you for your manual It has the basic things to and i use the Oszi for Longer Time.
THX
Text excerpt from page 9 (click to view)
Maintenance of your Refrigerator-Freezer
Prior to undertaking any maintenance operation, be sure to unplug the appliance.
Defrosting of the freezer
The inner walls of the freezer become gradually covered with a layer of frost keeping in mind not to open the door frequently and keeping the food wrapped up in closed bags. Whenever the thickness of ice reaches 5 mm. the frost should be removed. Here to proceed as follows: 1... Remove all food staff and place it in the coolest possible place. 2�Remove the plug «D» in the base top of the freezer compartment, pulling the longue strongly upwards. 3�Place a bowl under the outlet to collect the water. 4�Remove the ice from the walls with a plastic scraper. Never use any sharp metal tools, electric ovens or similar as these may cause serious damage to teh appliance. 5�Once the ice is eliminated and the appliance cleaned and dry again, replace the plug «D» pushing hard. 6�Connect the appliance.
