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)
Defrosting
Frost is automatically eliminated from the evaporator of the refrigerator compartment every time the motor compressor stops, during normal use. The defrost water drains out through a trough into a special container at the back of the appliance, over the motor compressor, where it evaporates. The freezer compartment, however, will become progressively covered with frost. This should be removed with the special plastic scraper provided, whenever the thickness of the frost exceeds 4 mm. During this operation it is not necessary to switch off the power supply or to remove the foodstuffs. However, when the ice becomes very thick on the inner liner, complete defrosting should be carried out and it is advisable to carry out this operation when the appliance is empty. To carry out complete defrosting of the freezer compartment proceed as follows: Remove any stored food, wrap it in several layers of newspaper and put it in a cool place. Pull out the plug from the wall socket or turn the thermostat knob to the a«O» setting. Leave the door open. Introduce the plastic scraper in the appropriate seating at the bottom centre, as shown in Fig , place underneath a basin to collect the defrost water. When defrosting is completed, dry the interior thoroughly; keep the scraper for future use; replace the plug in the socket and, after letting the appliance run for at least half an hour, replace the previously removed food into the compartment. Important A temperature rise of the frozen food packs, during defrosting, may shorten their safe storage life. Never use sharp metal tools to scrape off frost from the evaporator as you could damage it. Do not use a mechanical device or any artificial means to speed up the thawing process other than those recommended by the manufacturer.
D037
