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 19 (click to view)
8.1.6. Replacement of the Power Amplifier IC
- Replacement of the Power Amplifier IC - Follow the (Step 1) - (Step 4) of Item 8.1.1. - Follow the (Step 1) - (Step 2) of Item 8.1.2. - Follow the (Step 1) - (Step 4) of Item 8.1.3. - Follow the (Step 1) of Item 8.1.4. - Follow the (Step 1) - (Step 6) of Item 8.1.5.
Step 1 Remove 2 connector CP501 and CP504 and pull out the Main P.C.B. Step 2 Remove 2 screws fixed to the Power Amp I.C.