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 3 (click to view)
7. Removal of SUB1 Board
1. Disconnect CN101 on SUB1 Board. 2. Unscrew 2 screws (G) so that the SUB 1 Board can be removed.
9. Removal of MAIN Board
1. Disconnect CN1 on MAIN Board so that the EVF cable can be removed. 2. Unscrew 4 screws (H) so that the MAIN Board can be removed. SCREWS (H)
CN101
SCREWS (G) SCREWS (H)
8. Removal of SUB2 Board
1. Unscrew hex screw fixing all front knobs. (PEAKING, CONTRAST and BRIGHT knob) 2. Unscrew hex nut (A) and then pull out the each front knob so that the SUB 2 board can be removed.
10. Removal of Guard Bar
1. Unscrew 2 screws (I) so that the Guard bar can be removed.
