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.
IF PRINTED CIRQUIT BOARD WIRING VIEW WAS ONE TONE LIGHTER, THEN 5 STAR RANK HAS TO BE MY CHOISE.
Text excerpt from page 39 (click to view)
ED-X8250(CC9XM)
Notice
1. Detach and attach the upper case. Follw the procedure below to detach and attach the upper case. When disassembling
a. Remove the Lamp door.
CAUTION
The lamp door must be removed before the upper case when disassembling the machine. If the upper case is detached with the lamp door installed, the MAIN board might be damaged.
Lamp door
Loosen this screw b. Remove 7screws on the bottom and 3 screws on the rear to detach the upper case.
CAUTION
These are not screw holes. Do NOT insert a screw or screwdriver into them to avoid damaging the inside.
