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 22 (click to view)
BEFORE REQUESTING SERVICE
WARNING
Electrical Shock or Personal Injury Hazard.
Disconnect the electrical supply before servicing or cleaning the unit. Failure to do so could result in electrical shock or personal injury from cleaner suddenly starting.
Review this chart to find do-it-yourself solutions for minor performance problems. Any service needed, other than those described in these Operating Instructions, should be performed by an authorized service representative. PROBLEM
Cleaner will not run.
POSSIBLE CAUSE
1. Unplugged at wall outlet. 2. ON-OFF switch not turned on. 3. Tripped thermal protector. 4. Tripped circuit breaker/blown fuse at household service panel.
POSSIBLE SOLUTION
1. Plug in firmly. Push ON-OFF switch to ON. 2. Push ON-OFF switch to ON. 3. Unplug vacuum, wait thirty (30) minutes, plug in and switch to ON. 4. Reset circuit breaker or replace fuse. 1. Change bag. 2. Replace belt. 3. Set in the correct position. 4. Clean hose or nozzle area. 5. Insert hose. 6. Replace agitator. 7. Replace hose. 8. Properly install dust cover. 9. Install belt on motor shaft.
Poor job of dirt pickup.
1. Full or clogged dust bag. 2. Broken belt. 3. Carpet-bare floor setting incorrect. 4. Clogged hose or nozzle. 5. Hose not inserted fully. 6. Worn agitator. 7. Hole in hose. 8. Dust cover improperly installed. 9. Belt not installed on motor shaft.
10. Floor cleaning attachment knob in 10. Rotate valve knob to floor the cleaning attachment position position. Dust escapes the paper bag. 1. Bag improperly installed. 2. Bag torn. Light will not work. Dirt sensor will not work. 1. Burned out light bulb. 1. Properly install bag. 2. Replace bag. 1. Replace light bulb.