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.
Actually, I was looking for this information for 3 years!...now thanks to you, the manual is on my hands and of great help, cause I understand now where I was doing wrong connections and wires...excellent, I'll be back to you if in need, thank you.
Text excerpt from page 13 (click to view)
HOW TO MAINTAIN (continued) How to Clear Hose Clogs
NOTE: Turn off the switch and unplug the electrical cord before clearing hose.
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Hose Adapter Hose Retainer
3. On the back of the cleaner, pull up on hose assembly to release from hose retainer. 1. Locate hose adapter on the front of the cleaner. 4. The hose is free of the cleaner. Check for clogs in the hose retainer and throughout the hose assembly. 5. Use a tool that will not puncture the hose. Clear any debris from the hose retainer or the hose assembly that could restrict air �ow. 6. Flexing the hose may help loosen the clog. 7. After the clog is removed make sure the hose assembly is reassembled onto the unit.
2. Push button on hose adapter and pull hose upward to release hose from top of cleaner.
8. If the clog is hard to remove, check the brush roll area. Remove the hood and clear the hose inlet in the brush roll area. 13
