This is a good quality scan of the service manual which includes an assembly diagram, block diagram, schematic, and parts list. Exactly what is needed to repair my KR-V55R receiver.
Excellent concise manual. All needed information was included. Typeface and diagrams were clear. Very fair price considering what others are charging. Many thanks
Text excerpt from page 46 (click to view)
5-2. Replacing the CPU
1. How to remove the CPU 1 Rotate the lock with a flat-blade screwdriver toward the unlock position shown in the figure. 2 Remove up the CPU. 1
CPU lock position 2
unlock position
CPU socket
2. How to install the CPU 1 Position the mark on the CPU to the mark on the CPU socket and put in all pins to the holes on the CPU socket. 2 Pressing two corners marked with in the figure, rotate the lock with a flat-blade screwdriver toward the lock position. 2
mark CPU unlock position mark 1
lock position
CPU socket
Note: Lock the CPU properly, or operation becomes unstable.