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 8 (click to view)
TEST MODE
This model has a test mode function in the disassembled condition.
Screw
TP701 Screw
TEST
1. How to use the test mode: � Short the test land in the MAIN C.B. � Auto-stop function is not detected by micro-computer while test mode is active. Note: Make sure that the test land is opened after the test mode is de-activated. (Auto-stop function is not available with shorted land condition.) 2. How to disassemble the circuit board. � Removes the soldering part in the MAIN C.B . � Removes two screws.
