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´s for your help, I already recived these manual from you
Text excerpt from page 6 (click to view)
Changing air direction
tabs
The louvers in the top of the front panel allow you to control the direction of the cooled air. Use the tabs to direct the air right or left (some models). Rotate the whole cartridge to direct air up, down or straight ahead.
tabs
Saving energy
Along with using POWER SAVER (some models), there are many things you can do to help save energy. � Improve your home's insulation. Seal doors and windows. Close fireplace flue. � Close blinds or drapes on the sunny side of your house. Add awnings. � Make sure drapes or furniture do not block airflow from your air conditioner. � Turn lights and appliances off when they are not needed. � Ventilate your attic. High temperatures in the attic add to the air conditioner's cooling load. � Try not to use heat-producing appliances during the hottest part of the day. � Keep heat registers and cool-air returns closed. � Use exhaust vent fans while cooking, doing laundry, or bathing.
Normal operating sounds
When your air conditioner is operating normally, you may hear sounds such as: � Droplets of water hitting the condenser, causing a �pinging� or �clicking� sound. The water droplets help cool the condenser. � Air movement from the fan. � Clicks from the thermostat cycle. � Vibrations or noise due to poor wall or window construction. � A high-pitched hum or pulsating noise caused by the modern high-efficiency compressor cycling on and off.