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 8 (click to view)
KRC-765/691/691Y
ADJUSTMENT
BALANCE/FADER/BASS/MID/TREBLE : CENTER T.ADV/METAL/DOLBY NR : OFF No. ITEM INPUT SETTINGS TCC-153 10kHz OUTPUT SETTINGS SP OUT Connect an AC voltmeter to CN5 (X14-). ALIGNMENT POINTS Head azimuth screw (FWD/REV) VR1 (L) VR2 (R) ALIGN FOR Adjust so that output level in playing FWD and REV becomes maximum each. 388mV FIG.