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 69 (click to view)
XR-A880, XR-A770
7.2 DISASSEMBLY
$M MECHANISM CD
2
Bonnet Case
1 �3
1
�3
1 �3
4
1 �3 7 �2 6 1 �3
Tray Cap
Main Cam
Note: The loading tray can be pulled out when the main cam is in this position. (The Lock Lever should be in the notch of the Main Cam.)