Awesome manual. Complete diagrams of all board assemblies as well as how to get to each part of the t.v. down to the individual screws and their locations. Get it.
This is exactly the service manual I needed.
Complete with all schematics, partslists, PCB layouts and alignment instructions.
This manual covers both the T-4970 en T-488F Onkyo tuner.
Text excerpt from page 6 (click to view)
HOW TO REMOVE THE CONTROL PANEL (M-BOARD)
1. 2. 3. Remove the E-board from the cabinet with the M-board attached. Unclip by lifting the front of the M-board vertically. After servicing ensure all wiring is returned to its original position before returning the receiver to the customer.
HOW TO REMOVE THE A - BOARD
1. 2. 3. Disconnect the 5 leads from the A - board. Release the A and F boards securing brackets by pushing the clips in the direction shown in Fig.8, and remove the A - board by gently lifting vertically. After servicing ensure all wiring is returned to its original position before returning the receiver to the customer.